diff options
Diffstat (limited to 'target/linux/olpc/patches-2.6.23/100-olpc.patch')
| -rw-r--r-- | target/linux/olpc/patches-2.6.23/100-olpc.patch | 5880 |
1 files changed, 5880 insertions, 0 deletions
diff --git a/target/linux/olpc/patches-2.6.23/100-olpc.patch b/target/linux/olpc/patches-2.6.23/100-olpc.patch new file mode 100644 index 0000000..4607aed --- /dev/null +++ b/target/linux/olpc/patches-2.6.23/100-olpc.patch @@ -0,0 +1,5880 @@ +Index: linux-2.6.23.17/arch/i386/Kconfig +=================================================================== +--- linux-2.6.23.17.orig/arch/i386/Kconfig ++++ linux-2.6.23.17/arch/i386/Kconfig +@@ -796,6 +796,15 @@ config SECCOMP + + If unsure, say Y. Only embedded should say N here. + ++config VGA_NOPROBE ++ bool "Don't probe VGA at boot" if EMBEDDED ++ default n ++ help ++ Saying Y here will cause the kernel to not probe VGA at boot time. ++ This will break everything that depends on the probed screen ++ data. Say N here unless you are absolutely sure this is what you ++ want. ++ + source kernel/Kconfig.hz + + config KEXEC +@@ -1120,6 +1129,9 @@ config PCI_GODIRECT + config PCI_GOANY + bool "Any" + ++config PCI_GOOLPC ++ bool "OLPC" ++ + endchoice + + config PCI_BIOS +@@ -1129,7 +1141,7 @@ config PCI_BIOS + + config PCI_DIRECT + bool +- depends on PCI && ((PCI_GODIRECT || PCI_GOANY) || X86_VISWS) ++ depends on PCI && ((PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC) || X86_VISWS) + default y + + config PCI_MMCONFIG +@@ -1137,6 +1149,11 @@ config PCI_MMCONFIG + depends on PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY) + default y + ++config PCI_OLPC ++ bool ++ depends on PCI && PCI_GOOLPC ++ default y ++ + source "drivers/pci/pcie/Kconfig" + + source "drivers/pci/Kconfig" +@@ -1206,10 +1223,43 @@ config SCx200HR_TIMER + processor goes idle (as is done by the scheduler). The + other workaround is idle=poll boot option. + ++config GEODE_MFGPT_TIMER ++ bool "Geode Multi-Function General Purpose Timer (mfgpt) Support" ++ depends on MGEODE_LX && GENERIC_TIME && GENERIC_CLOCKEVENTS ++ default y ++ help ++ This driver provides a clock event source based on the MFGPT ++ timer(s) in the CS5535 and CS5536 companion chip for the geode. ++ MFGPTs have a better resolution and max interval than the ++ generic PIT, and are suitable for use as high-res timers. ++ + config K8_NB + def_bool y + depends on AGP_AMD64 + ++config OLPC ++ bool "OLPC Support" ++ default n ++ help ++ Add support for detecting the unique features of the OLPC ++ Childrens Machine ++ ++config OLPC_PM ++ tristate "OLPC power management support" ++ default y ++ depends on OLPC ++ help ++ Add support for the Geode power management facilities on the ++ OLPC Childrens Machine ++ ++config OPEN_FIRMWARE ++ bool "Support for Open Firmware" ++ default y if OLPC ++ help ++ This option adds support for the implementation of Open Firmware ++ that is used on the OLPC Children's Machine. ++ If unsure, say N here. ++ + source "drivers/pcmcia/Kconfig" + + source "drivers/pci/hotplug/Kconfig" +Index: linux-2.6.23.17/arch/i386/kernel/Makefile +=================================================================== +--- linux-2.6.23.17.orig/arch/i386/kernel/Makefile ++++ linux-2.6.23.17/arch/i386/kernel/Makefile +@@ -39,13 +39,17 @@ obj-$(CONFIG_VM86) += vm86.o + obj-$(CONFIG_EARLY_PRINTK) += early_printk.o + obj-$(CONFIG_HPET_TIMER) += hpet.o + obj-$(CONFIG_K8_NB) += k8.o +-obj-$(CONFIG_MGEODE_LX) += geode.o ++obj-$(CONFIG_MGEODE_LX) += geode.o mfgpt.o + + obj-$(CONFIG_VMI) += vmi.o vmiclock.o + obj-$(CONFIG_PARAVIRT) += paravirt.o + obj-y += pcspeaker.o + + obj-$(CONFIG_SCx200) += scx200.o ++obj-$(CONFIG_OLPC) += olpc.o ++obj-$(CONFIG_OLPC_PM) += olpc-pm.o olpc-wakeup.o ++obj-$(CONFIG_OPEN_FIRMWARE) += ofw.o ++obj-$(CONFIG_PROMFS_FS) += prom.o + + # vsyscall.o contains the vsyscall DSO images as __initdata. + # We must build both images before we can assemble it. +Index: linux-2.6.23.17/arch/i386/kernel/geode.c +=================================================================== +--- linux-2.6.23.17.orig/arch/i386/kernel/geode.c ++++ linux-2.6.23.17/arch/i386/kernel/geode.c +@@ -145,10 +145,14 @@ EXPORT_SYMBOL_GPL(geode_gpio_setup_event + + static int __init geode_southbridge_init(void) + { ++ int timers; ++ + if (!is_geode()) + return -ENODEV; + + init_lbars(); ++ timers = geode_mfgpt_detect(); ++ printk(KERN_INFO "geode-mfgpt: %d timers available.\n", timers); + return 0; + } + +Index: linux-2.6.23.17/arch/i386/kernel/head.S +=================================================================== +--- linux-2.6.23.17.orig/arch/i386/kernel/head.S ++++ linux-2.6.23.17/arch/i386/kernel/head.S +@@ -117,8 +117,34 @@ ENTRY(startup_32) + movl $(COMMAND_LINE_SIZE/4),%ecx + rep + movsl ++ ++#ifdef CONFIG_OPEN_FIRMWARE ++/* ++ * If Open Firmware booted us, save the OFW client interface callback address ++ * and preserve the OFW page mappings by priming the kernel's new page ++ * directory area with a copy of the OFW page directory. That lets OFW stay ++ * resident in high memory (high in both the virtual and physical spaces) ++ * for at least long enough to copy out the device tree. ++ */ + 1: ++ movl $(boot_params - __PAGE_OFFSET + OFW_INFO_OFFSET), %ebp ++ cmpl $0x2057464F, (%ebp) /* Magic number "OFW " */ ++ jne 1f ++ ++ mov 0x8(%ebp), %eax /* Save callback address */ ++ mov %eax, call_firmware - __PAGE_OFFSET ++ ++ /* Copy the OFW pdir into swapper_pg_dir */ ++ movl %esi, %edx /* save %esi */ ++ movl $(swapper_pg_dir - __PAGE_OFFSET), %edi ++ movl %cr3, %esi /* Source is current pg_dir base address */ ++ movl $1024, %ecx /* Number of page directory entries */ ++ rep ++ movsl ++ movl %edx, %esi /* restore %esi */ ++#endif + ++1: + /* + * Initialize page tables. This creates a PDE and a set of page + * tables, which are located immediately beyond _end. The variable +@@ -129,6 +155,7 @@ ENTRY(startup_32) + * Warning: don't use %esi or the stack in this code. However, %esp + * can be used as a GPR if you really need it... + */ ++ + page_pde_offset = (__PAGE_OFFSET >> 20); + + movl $(pg0 - __PAGE_OFFSET), %edi +Index: linux-2.6.23.17/arch/i386/kernel/setup.c +=================================================================== +--- linux-2.6.23.17.orig/arch/i386/kernel/setup.c ++++ linux-2.6.23.17/arch/i386/kernel/setup.c +@@ -362,8 +362,10 @@ void __init zone_sizes_init(void) + { + unsigned long max_zone_pfns[MAX_NR_ZONES]; + memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); ++#ifdef CONFIG_ZONE_DMA + max_zone_pfns[ZONE_DMA] = + virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; ++#endif + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; + #ifdef CONFIG_HIGHMEM + max_zone_pfns[ZONE_HIGHMEM] = highend_pfn; +@@ -428,6 +430,9 @@ void __init setup_bootmem_allocator(void + */ + acpi_reserve_bootmem(); + #endif ++#ifdef CONFIG_OLPC_PM ++ reserve_bootmem(0xf0000, PAGE_SIZE); ++#endif + #ifdef CONFIG_X86_FIND_SMP_CONFIG + /* + * Find and reserve possible boot-time SMP configuration: +Index: linux-2.6.23.17/arch/i386/pci/Makefile +=================================================================== +--- linux-2.6.23.17.orig/arch/i386/pci/Makefile ++++ linux-2.6.23.17/arch/i386/pci/Makefile +@@ -3,6 +3,7 @@ obj-y := i386.o init.o + obj-$(CONFIG_PCI_BIOS) += pcbios.o + obj-$(CONFIG_PCI_MMCONFIG) += mmconfig.o direct.o mmconfig-shared.o + obj-$(CONFIG_PCI_DIRECT) += direct.o ++obj-$(CONFIG_PCI_OLPC) += olpc.o + + pci-y := fixup.o + pci-$(CONFIG_ACPI) += acpi.o +Index: linux-2.6.23.17/arch/i386/pci/init.c +=================================================================== +--- linux-2.6.23.17.orig/arch/i386/pci/init.c ++++ linux-2.6.23.17/arch/i386/pci/init.c +@@ -14,6 +14,9 @@ static __init int pci_access_init(void) + #ifdef CONFIG_PCI_MMCONFIG + pci_mmcfg_init(type); + #endif ++#ifdef CONFIG_PCI_OLPC ++ pci_olpc_init(); ++#endif + if (raw_pci_ops) + return 0; + #ifdef CONFIG_PCI_BIOS +Index: linux-2.6.23.17/arch/i386/pci/pci.h +=================================================================== +--- linux-2.6.23.17.orig/arch/i386/pci/pci.h ++++ linux-2.6.23.17/arch/i386/pci/pci.h +@@ -93,6 +93,7 @@ extern void pci_direct_init(int type); + extern void pci_pcbios_init(void); + extern void pci_mmcfg_init(int type); + extern void pcibios_sort(void); ++extern void pci_olpc_init(void); + + /* pci-mmconfig.c */ + +Index: linux-2.6.23.17/drivers/Makefile +=================================================================== +--- linux-2.6.23.17.orig/drivers/Makefile ++++ linux-2.6.23.17/drivers/Makefile +@@ -23,6 +23,8 @@ obj-y += char/ + + obj-$(CONFIG_CONNECTOR) += connector/ + ++obj-$(CONFIG_SYSPROF) += sysprof/ ++ + # i810fb and intelfb depend on char/agp/ + obj-$(CONFIG_FB_I810) += video/i810/ + obj-$(CONFIG_FB_INTEL) += video/intelfb/ +Index: linux-2.6.23.17/drivers/char/vt_ioctl.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/char/vt_ioctl.c ++++ linux-2.6.23.17/drivers/char/vt_ioctl.c +@@ -37,6 +37,9 @@ + char vt_dont_switch; + extern struct tty_driver *console_driver; + ++/* Add a notifier chain to inform drivers of a VT_TEXT/VT_GRAPHICS switch */ ++RAW_NOTIFIER_HEAD(console_notifier_list); ++ + #define VT_IS_IN_USE(i) (console_driver->ttys[i] && console_driver->ttys[i]->count) + #define VT_BUSY(i) (VT_IS_IN_USE(i) || i == fg_console || vc_cons[i].d == sel_cons) + +@@ -491,6 +494,14 @@ int vt_ioctl(struct tty_struct *tty, str + vc->vc_mode = (unsigned char) arg; + if (console != fg_console) + return 0; ++ ++ /* Notify listeners if the current fg_console has switched */ ++ ++ raw_notifier_call_chain(&console_notifier_list, ++ (arg == KD_TEXT) ? ++ CONSOLE_EVENT_SWITCH_TEXT : ++ CONSOLE_EVENT_SWITCH_GRAPHICS, 0); ++ + /* + * explicitly blank/unblank the screen if switching modes + */ +Index: linux-2.6.23.17/drivers/i2c/busses/scx200_acb.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/i2c/busses/scx200_acb.c ++++ linux-2.6.23.17/drivers/i2c/busses/scx200_acb.c +@@ -46,6 +46,10 @@ static int base[MAX_DEVICES] = { 0x820, + module_param_array(base, int, NULL, 0); + MODULE_PARM_DESC(base, "Base addresses for the ACCESS.bus controllers"); + ++static unsigned int smbclk = 0x70; ++module_param(smbclk, uint, 0); ++MODULE_PARM_DESC(smbclk, "Specify the SMB_CLK value"); ++ + #define POLL_TIMEOUT (HZ/5) + + enum scx200_acb_state { +@@ -108,6 +112,7 @@ struct scx200_acb_iface { + #define ACBADDR (iface->base + 4) + #define ACBCTL2 (iface->base + 5) + #define ACBCTL2_ENABLE 0x01 ++#define ACBCTL3 (iface->base + 6) + + /************************************************************************/ + +@@ -392,11 +397,13 @@ static __init int scx200_acb_probe(struc + { + u8 val; + +- /* Disable the ACCESS.bus device and Configure the SCL +- frequency: 16 clock cycles */ +- outb(0x70, ACBCTL2); ++ /* Disable the ACCESS.bus device and Configure the SCL */ ++ ++ outb((smbclk & 0x7F) << 1, ACBCTL2); ++ ++ outb((smbclk >> 7) & 0xFF, ACBCTL3); + +- if (inb(ACBCTL2) != 0x70) { ++ if (inb(ACBCTL2) != ((smbclk & 0x7F) << 1)) { + pr_debug(NAME ": ACBCTL2 readback failed\n"); + return -ENXIO; + } +Index: linux-2.6.23.17/drivers/input/keyboard/atkbd.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/input/keyboard/atkbd.c ++++ linux-2.6.23.17/drivers/input/keyboard/atkbd.c +@@ -63,12 +63,25 @@ static int atkbd_extra; + module_param_named(extra, atkbd_extra, bool, 0); + MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards"); + ++#define ATKBD_KEY_UNKNOWN 0 ++#define ATKBD_KEY_NULL 0xFF0000FF ++ ++#define ATKBD_SCR_1 0xFF0000FE ++#define ATKBD_SCR_2 0xFF0000FD ++#define ATKBD_SCR_4 0xFF0000FC ++#define ATKBD_SCR_8 0xFF0000FB ++#define ATKBD_SCR_CLICK 0xFF0000FA ++#define ATKBD_SCR_LEFT 0xFF0000F9 ++#define ATKBD_SCR_RIGHT 0xFF0000F8 ++ ++#define ATKBD_SPECIAL 0xFF0000F8 ++ + /* + * Scancode to keycode tables. These are just the default setting, and + * are loadable via an userland utility. + */ + +-static unsigned char atkbd_set2_keycode[512] = { ++static unsigned int atkbd_set2_keycode[512] = { + + #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES + +@@ -87,11 +100,17 @@ static unsigned char atkbd_set2_keycode[ + 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +- 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125, ++ ++ 217,100,ATKBD_KEY_NULL, 0, 97,165, 0, 0, ++ 156, 0, 0, 0, 0, 0, 0,125, ++ + 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127, + 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142, + 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0, +- 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0, ++ ++ 226, 0, 0, 0, 0, 0, 0, 0, ++ 0,ATKBD_KEY_NULL, 96, 0, 0, 0,143, 0, ++ + 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112, + 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0, + +@@ -150,19 +169,6 @@ static unsigned char atkbd_unxlate_table + #define ATKBD_RET_HANGEUL 0xf2 + #define ATKBD_RET_ERR 0xff + +-#define ATKBD_KEY_UNKNOWN 0 +-#define ATKBD_KEY_NULL 255 +- +-#define ATKBD_SCR_1 254 +-#define ATKBD_SCR_2 253 +-#define ATKBD_SCR_4 252 +-#define ATKBD_SCR_8 251 +-#define ATKBD_SCR_CLICK 250 +-#define ATKBD_SCR_LEFT 249 +-#define ATKBD_SCR_RIGHT 248 +- +-#define ATKBD_SPECIAL 248 +- + #define ATKBD_LED_EVENT_BIT 0 + #define ATKBD_REP_EVENT_BIT 1 + +@@ -174,7 +180,7 @@ static unsigned char atkbd_unxlate_table + #define ATKBD_XL_HANJA 0x20 + + static struct { +- unsigned char keycode; ++ unsigned int keycode; + unsigned char set2; + } atkbd_scroll_keys[] = { + { ATKBD_SCR_1, 0xc5 }, +@@ -200,7 +206,7 @@ struct atkbd { + char phys[32]; + + unsigned short id; +- unsigned char keycode[512]; ++ unsigned int keycode[512]; + unsigned char set; + unsigned char translated; + unsigned char extra; +@@ -351,7 +357,7 @@ static irqreturn_t atkbd_interrupt(struc + unsigned int code = data; + int scroll = 0, hscroll = 0, click = -1, add_release_event = 0; + int value; +- unsigned char keycode; ++ unsigned int keycode; + + #ifdef ATKBD_DEBUG + printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags); +@@ -856,9 +862,11 @@ static void atkbd_set_keycode_table(stru + atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode; + } + } else if (atkbd->set == 3) { +- memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode)); ++ for (i = 0; i < ARRAY_SIZE(atkbd_set3_keycode); i++) ++ atkbd->keycode[i] = atkbd_set3_keycode[i]; + } else { +- memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode)); ++ for (i = 0; i < ARRAY_SIZE(atkbd_set2_keycode); i++) ++ atkbd->keycode[i] = atkbd_set2_keycode[i]; + + if (atkbd->scroll) + for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) +@@ -925,8 +933,8 @@ static void atkbd_set_device_attrs(struc + } + + input_dev->keycode = atkbd->keycode; +- input_dev->keycodesize = sizeof(unsigned char); +- input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); ++ input_dev->keycodesize = sizeof(unsigned int); ++ input_dev->keycodemax = ARRAY_SIZE(atkbd->keycode); + + for (i = 0; i < 512; i++) + if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL) +@@ -1017,6 +1025,10 @@ static int atkbd_connect(struct serio *s + return err; + } + ++#ifdef CONFIG_OLPC ++#include <asm/olpc.h> ++#endif ++ + /* + * atkbd_reconnect() tries to restore keyboard into a sane state and is + * most likely called on resume. +@@ -1027,6 +1039,12 @@ static int atkbd_reconnect(struct serio + struct atkbd *atkbd = serio_get_drvdata(serio); + struct serio_driver *drv = serio->drv; + ++#ifdef CONFIG_OLPC ++ if (olpc_rev_after(OLPC_REV_B2)) ++ if (serio->dev.power.power_state.event != PM_EVENT_ON) ++ return 0; ++#endif ++ + if (!atkbd || !drv) { + printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n"); + return -1; +Index: linux-2.6.23.17/drivers/input/mouse/Kconfig +=================================================================== +--- linux-2.6.23.17.orig/drivers/input/mouse/Kconfig ++++ linux-2.6.23.17/drivers/input/mouse/Kconfig +@@ -96,6 +96,16 @@ config MOUSE_PS2_TOUCHKIT + + If unsure, say N. + ++config MOUSE_PS2_OLPC ++ bool "OLPC PS/2 mouse protocol extension" if EMBEDDED ++ default n ++ depends on MOUSE_PS2 && OLPC ++ ---help--- ++ Say Y here if you have an OLPC PS/2 touchpad connected to ++ your system. ++ ++ If unsure, say N. ++ + config MOUSE_SERIAL + tristate "Serial mouse" + select SERIO +Index: linux-2.6.23.17/drivers/input/mouse/Makefile +=================================================================== +--- linux-2.6.23.17.orig/drivers/input/mouse/Makefile ++++ linux-2.6.23.17/drivers/input/mouse/Makefile +@@ -24,3 +24,4 @@ psmouse-$(CONFIG_MOUSE_PS2_LOGIPS2PP) += + psmouse-$(CONFIG_MOUSE_PS2_LIFEBOOK) += lifebook.o + psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT) += trackpoint.o + psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT) += touchkit_ps2.o ++psmouse-$(CONFIG_MOUSE_PS2_OLPC) += olpc.o +Index: linux-2.6.23.17/drivers/input/mouse/psmouse-base.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/input/mouse/psmouse-base.c ++++ linux-2.6.23.17/drivers/input/mouse/psmouse-base.c +@@ -26,6 +26,7 @@ + #include "synaptics.h" + #include "logips2pp.h" + #include "alps.h" ++#include "olpc.h" + #include "lifebook.h" + #include "trackpoint.h" + #include "touchkit_ps2.h" +@@ -103,7 +104,7 @@ static struct attribute_group psmouse_at + */ + static DEFINE_MUTEX(psmouse_mutex); + +-static struct workqueue_struct *kpsmoused_wq; ++struct workqueue_struct *kpsmoused_wq; + + struct psmouse_protocol { + enum psmouse_type type; +@@ -320,7 +321,7 @@ static irqreturn_t psmouse_interrupt(str + goto out; + } + +- if (psmouse->packet[1] == PSMOUSE_RET_ID) { ++ if (psmouse->packet[1] == PSMOUSE_RET_ID || psmouse->packet[1] == PSMOUSE_RET_BAT) { + __psmouse_set_state(psmouse, PSMOUSE_IGNORE); + serio_reconnect(serio); + goto out; +@@ -631,8 +632,21 @@ static int psmouse_extensions(struct psm + } + } + ++/* ++ * Try OLPC touchpad. ++ */ + if (max_proto > PSMOUSE_IMEX) { ++ if (olpc_detect(psmouse, set_properties) == 0) { ++ if (!set_properties || olpc_init(psmouse) == 0) ++ return PSMOUSE_OLPC; ++/* ++ * Init failed, try basic relative protocols ++ */ ++ max_proto = PSMOUSE_IMEX; ++ } ++ } + ++ if (max_proto > PSMOUSE_IMEX) { + if (genius_detect(psmouse, set_properties) == 0) + return PSMOUSE_GENPS; + +@@ -762,6 +776,14 @@ static const struct psmouse_protocol psm + .detect = touchkit_ps2_detect, + }, + #endif ++#ifdef CONFIG_MOUSE_PS2_OLPC ++ { ++ .type = PSMOUSE_OLPC, ++ .name = "OLPC", ++ .alias = "olpc", ++ .detect = olpc_detect, ++ }, ++#endif + { + .type = PSMOUSE_CORTRON, + .name = "CortronPS/2", +Index: linux-2.6.23.17/drivers/input/mouse/psmouse.h +=================================================================== +--- linux-2.6.23.17.orig/drivers/input/mouse/psmouse.h ++++ linux-2.6.23.17/drivers/input/mouse/psmouse.h +@@ -89,6 +89,7 @@ enum psmouse_type { + PSMOUSE_TRACKPOINT, + PSMOUSE_TOUCHKIT_PS2, + PSMOUSE_CORTRON, ++ PSMOUSE_OLPC, + PSMOUSE_AUTO /* This one should always be last */ + }; + +@@ -96,6 +97,7 @@ int psmouse_sliced_command(struct psmous + int psmouse_reset(struct psmouse *psmouse); + void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution); + ++extern struct workqueue_struct *kpsmoused_wq; + + struct psmouse_attribute { + struct device_attribute dattr; +Index: linux-2.6.23.17/drivers/input/serio/i8042.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/input/serio/i8042.c ++++ linux-2.6.23.17/drivers/input/serio/i8042.c +@@ -868,6 +868,11 @@ static long i8042_panic_blink(long count + #undef DELAY + + #ifdef CONFIG_PM ++ ++#ifdef CONFIG_OLPC ++#include <asm/olpc.h> ++#endif ++ + /* + * Here we try to restore the original BIOS settings. We only want to + * do that once, when we really suspend, not when we taking memory +@@ -878,8 +883,15 @@ static long i8042_panic_blink(long count + static int i8042_suspend(struct platform_device *dev, pm_message_t state) + { + if (dev->dev.power.power_state.event != state.event) { ++#ifdef CONFIG_OLPC ++ /* Anything newer than B2 remains powered; no reset needed */ ++ if (olpc_rev_before(OLPC_REV_PRE_B3)) { ++#endif + if (state.event == PM_EVENT_SUSPEND) + i8042_controller_reset(); ++#ifdef CONFIG_OLPC ++ } ++#endif + + dev->dev.power.power_state = state; + } +@@ -902,9 +914,15 @@ static int i8042_resume(struct platform_ + if (dev->dev.power.power_state.event == PM_EVENT_ON) + return 0; + ++#ifdef CONFIG_OLPC ++ if (olpc_rev_before(OLPC_REV_PRE_B3)) { ++#endif + error = i8042_controller_check(); + if (error) + return error; ++#ifdef CONFIG_OLPC ++ } ++#endif + + error = i8042_controller_selftest(); + if (error) +Index: linux-2.6.23.17/drivers/input/serio/serio.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/input/serio/serio.c ++++ linux-2.6.23.17/drivers/input/serio/serio.c +@@ -916,11 +916,22 @@ static int serio_uevent(struct device *d + #endif /* CONFIG_HOTPLUG */ + + #ifdef CONFIG_PM ++ ++#ifdef CONFIG_OLPC ++#include <asm/olpc.h> ++#endif ++ + static int serio_suspend(struct device *dev, pm_message_t state) + { + if (dev->power.power_state.event != state.event) { ++#ifdef CONFIG_OLPC ++ if (olpc_rev_before(OLPC_REV_PRE_B3)) { ++#endif + if (state.event == PM_EVENT_SUSPEND) + serio_cleanup(to_serio_port(dev)); ++#ifdef CONFIG_OLPC ++ } ++#endif + + dev->power.power_state = state; + } +Index: linux-2.6.23.17/drivers/media/video/cafe_ccic.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/media/video/cafe_ccic.c ++++ linux-2.6.23.17/drivers/media/video/cafe_ccic.c +@@ -63,13 +63,13 @@ MODULE_SUPPORTED_DEVICE("Video"); + */ + + #define MAX_DMA_BUFS 3 +-static int alloc_bufs_at_load = 0; +-module_param(alloc_bufs_at_load, bool, 0444); +-MODULE_PARM_DESC(alloc_bufs_at_load, +- "Non-zero value causes DMA buffers to be allocated at module " +- "load time. This increases the chances of successfully getting " +- "those buffers, but at the cost of nailing down the memory from " +- "the outset."); ++static int alloc_bufs_at_read = 0; ++module_param(alloc_bufs_at_read, bool, 0444); ++MODULE_PARM_DESC(alloc_bufs_at_read, ++ "Non-zero value causes DMA buffers to be allocated when the " ++ "video capture device is read, rather than at module load " ++ "time. This saves memory, but decreases the chances of " ++ "successfully getting those buffers."); + + static int n_dma_bufs = 3; + module_param(n_dma_bufs, uint, 0644); +@@ -370,6 +370,10 @@ static int cafe_smbus_write_data(struct + rval = value | ((command << TWSIC1_ADDR_SHIFT) & TWSIC1_ADDR); + cafe_reg_write(cam, REG_TWSIC1, rval); + spin_unlock_irqrestore(&cam->dev_lock, flags); ++ mdelay(2); /* It'll probably take about 900µs anyway, and the ++ CAFÉ is apparently quite sensitive to being poked ++ at this point. If we can work out precisely what's ++ going on and reduce this delay, it would be nice. */ + + /* + * Time to wait for the write to complete. THIS IS A RACY +@@ -1503,7 +1507,7 @@ static int cafe_v4l_release(struct inode + } + if (cam->users == 0) { + cafe_ctlr_power_down(cam); +- if (! alloc_bufs_at_load) ++ if (alloc_bufs_at_read) + cafe_free_dma_bufs(cam); + } + mutex_unlock(&cam->s_mutex); +@@ -2162,7 +2166,7 @@ static int cafe_pci_probe(struct pci_dev + /* + * If so requested, try to get our DMA buffers now. + */ +- if (alloc_bufs_at_load) { ++ if (!alloc_bufs_at_read) { + if (cafe_alloc_dma_bufs(cam, 1)) + cam_warn(cam, "Unable to alloc DMA buffers at load" + " will try again later."); +Index: linux-2.6.23.17/drivers/misc/Kconfig +=================================================================== +--- linux-2.6.23.17.orig/drivers/misc/Kconfig ++++ linux-2.6.23.17/drivers/misc/Kconfig +@@ -202,5 +202,10 @@ config THINKPAD_ACPI_BAY + + If you are not sure, say Y here. + ++config EEPROM_93CX6 ++ tristate "EEPROM 93CX6 support" ++ ---help--- ++ This is a driver for the EEPROM chipsets 93c46 and 93c66. ++ The driver supports both read as well as write commands. + + endif # MISC_DEVICES +Index: linux-2.6.23.17/drivers/mmc/host/sdhci.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mmc/host/sdhci.c ++++ linux-2.6.23.17/drivers/mmc/host/sdhci.c +@@ -411,6 +411,12 @@ static void sdhci_prepare_data(struct sd + break; + } + ++ /* ++ * There's an off-by-one error in the hw that we need to ++ * compensate for. ++ */ ++ count++; ++ + if (count >= 0xF) { + printk(KERN_WARNING "%s: Too large timeout requested!\n", + mmc_hostname(host->mmc)); +@@ -676,19 +682,17 @@ static void sdhci_set_power(struct sdhci + if (!(host->chip->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE)) + writeb(0, host->ioaddr + SDHCI_POWER_CONTROL); + +- pwr = SDHCI_POWER_ON; +- + switch (1 << power) { + case MMC_VDD_165_195: +- pwr |= SDHCI_POWER_180; ++ pwr = SDHCI_POWER_180; + break; + case MMC_VDD_29_30: + case MMC_VDD_30_31: +- pwr |= SDHCI_POWER_300; ++ pwr = SDHCI_POWER_300; + break; + case MMC_VDD_32_33: + case MMC_VDD_33_34: +- pwr |= SDHCI_POWER_330; ++ pwr = SDHCI_POWER_330; + break; + default: + BUG(); +@@ -696,6 +700,10 @@ static void sdhci_set_power(struct sdhci + + writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL); + ++ pwr |= SDHCI_POWER_ON; ++ ++ writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL); ++ + out: + host->power = power; + } +Index: linux-2.6.23.17/drivers/mtd/Kconfig +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/Kconfig ++++ linux-2.6.23.17/drivers/mtd/Kconfig +@@ -288,6 +288,14 @@ config SSFDC + This enables read only access to SmartMedia formatted NAND + flash. You can mount it with FAT file system. + ++config MTD_OOPS ++ tristate "Log panic/oops to an MTD buffer" ++ depends on MTD ++ help ++ This enables panic and oops messages to be logged to a circular ++ buffer in a flash partition where it can be read back at some ++ later point. ++ + source "drivers/mtd/chips/Kconfig" + + source "drivers/mtd/maps/Kconfig" +Index: linux-2.6.23.17/drivers/mtd/Makefile +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/Makefile ++++ linux-2.6.23.17/drivers/mtd/Makefile +@@ -22,6 +22,7 @@ obj-$(CONFIG_NFTL) += nftl.o + obj-$(CONFIG_INFTL) += inftl.o + obj-$(CONFIG_RFD_FTL) += rfd_ftl.o + obj-$(CONFIG_SSFDC) += ssfdc.o ++obj-$(CONFIG_MTD_OOPS) += mtdoops.o + + nftl-objs := nftlcore.o nftlmount.o + inftl-objs := inftlcore.o inftlmount.o +Index: linux-2.6.23.17/drivers/mtd/chips/cfi_cmdset_0001.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/chips/cfi_cmdset_0001.c ++++ linux-2.6.23.17/drivers/mtd/chips/cfi_cmdset_0001.c +@@ -526,7 +526,7 @@ static int cfi_intelext_partition_fixup( + struct cfi_pri_intelext *extp = cfi->cmdset_priv; + + /* +- * Probing of multi-partition flash ships. ++ * Probing of multi-partition flash chips. + * + * To support multiple partitions when available, we simply arrange + * for each of them to have their own flchip structure even if they +@@ -1781,7 +1781,7 @@ static int __xipram do_erase_oneblock(st + return ret; + } + +-int cfi_intelext_erase_varsize(struct mtd_info *mtd, struct erase_info *instr) ++static int cfi_intelext_erase_varsize(struct mtd_info *mtd, struct erase_info *instr) + { + unsigned long ofs, len; + int ret; +@@ -1931,7 +1931,7 @@ static int cfi_intelext_lock(struct mtd_ + printk(KERN_DEBUG "%s: lock status before, ofs=0x%08llx, len=0x%08X\n", + __FUNCTION__, ofs, len); + cfi_varsize_frob(mtd, do_printlockstatus_oneblock, +- ofs, len, 0); ++ ofs, len, NULL); + #endif + + ret = cfi_varsize_frob(mtd, do_xxlock_oneblock, +@@ -1941,7 +1941,7 @@ static int cfi_intelext_lock(struct mtd_ + printk(KERN_DEBUG "%s: lock status after, ret=%d\n", + __FUNCTION__, ret); + cfi_varsize_frob(mtd, do_printlockstatus_oneblock, +- ofs, len, 0); ++ ofs, len, NULL); + #endif + + return ret; +@@ -1955,7 +1955,7 @@ static int cfi_intelext_unlock(struct mt + printk(KERN_DEBUG "%s: lock status before, ofs=0x%08llx, len=0x%08X\n", + __FUNCTION__, ofs, len); + cfi_varsize_frob(mtd, do_printlockstatus_oneblock, +- ofs, len, 0); ++ ofs, len, NULL); + #endif + + ret = cfi_varsize_frob(mtd, do_xxlock_oneblock, +@@ -1965,7 +1965,7 @@ static int cfi_intelext_unlock(struct mt + printk(KERN_DEBUG "%s: lock status after, ret=%d\n", + __FUNCTION__, ret); + cfi_varsize_frob(mtd, do_printlockstatus_oneblock, +- ofs, len, 0); ++ ofs, len, NULL); + #endif + + return ret; +@@ -2256,7 +2256,7 @@ static void cfi_intelext_save_locks(stru + adr = region->offset + block * len; + + status = cfi_varsize_frob(mtd, +- do_getlockstatus_oneblock, adr, len, 0); ++ do_getlockstatus_oneblock, adr, len, NULL); + if (status) + set_bit(block, region->lockmap); + else +Index: linux-2.6.23.17/drivers/mtd/chips/cfi_cmdset_0002.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/chips/cfi_cmdset_0002.c ++++ linux-2.6.23.17/drivers/mtd/chips/cfi_cmdset_0002.c +@@ -1617,7 +1617,7 @@ static int __xipram do_erase_oneblock(st + } + + +-int cfi_amdstd_erase_varsize(struct mtd_info *mtd, struct erase_info *instr) ++static int cfi_amdstd_erase_varsize(struct mtd_info *mtd, struct erase_info *instr) + { + unsigned long ofs, len; + int ret; +Index: linux-2.6.23.17/drivers/mtd/chips/jedec_probe.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/chips/jedec_probe.c ++++ linux-2.6.23.17/drivers/mtd/chips/jedec_probe.c +@@ -70,6 +70,7 @@ + + /* Fujitsu */ + #define MBM29F040C 0x00A4 ++#define MBM29F800BA 0x2258 + #define MBM29LV650UE 0x22D7 + #define MBM29LV320TE 0x22F6 + #define MBM29LV320BE 0x22F9 +@@ -129,6 +130,7 @@ + #define LH28F640BF 0x00b0 + + /* ST - www.st.com */ ++#define M29F800AB 0x0058 + #define M29W800DT 0x00D7 + #define M29W800DB 0x005B + #define M29W160DT 0x22C4 +@@ -646,6 +648,23 @@ static const struct amd_flash_info jedec + } + }, { + .mfr_id = MANUFACTURER_FUJITSU, ++ .dev_id = MBM29F800BA, ++ .name = "Fujitsu MBM29F800BA", ++ .uaddr = { ++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */ ++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */ ++ }, ++ .DevSize = SIZE_1MiB, ++ .CmdSet = P_ID_AMD_STD, ++ .NumEraseRegions= 4, ++ .regions = { ++ ERASEINFO(0x04000,1), ++ ERASEINFO(0x02000,2), ++ ERASEINFO(0x08000,1), ++ ERASEINFO(0x10000,15), ++ } ++ }, { ++ .mfr_id = MANUFACTURER_FUJITSU, + .dev_id = MBM29LV650UE, + .name = "Fujitsu MBM29LV650UE", + .uaddr = { +@@ -1510,6 +1529,23 @@ static const struct amd_flash_info jedec + ERASEINFO(0x1000,256) + } + ++ }, { ++ .mfr_id = MANUFACTURER_ST, ++ .dev_id = M29F800AB, ++ .name = "ST M29F800AB", ++ .uaddr = { ++ [0] = MTD_UADDR_0x0AAA_0x0555, /* x8 */ ++ [1] = MTD_UADDR_0x0555_0x02AA, /* x16 */ ++ }, ++ .DevSize = SIZE_1MiB, ++ .CmdSet = P_ID_AMD_STD, ++ .NumEraseRegions= 4, ++ .regions = { ++ ERASEINFO(0x04000,1), ++ ERASEINFO(0x02000,2), ++ ERASEINFO(0x08000,1), ++ ERASEINFO(0x10000,15), ++ } + }, { + .mfr_id = MANUFACTURER_ST, /* FIXME - CFI device? */ + .dev_id = M29W800DT, +Index: linux-2.6.23.17/drivers/mtd/devices/Kconfig +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/devices/Kconfig ++++ linux-2.6.23.17/drivers/mtd/devices/Kconfig +@@ -69,12 +69,21 @@ config MTD_DATAFLASH26 + If you have such a board and such a DataFlash, say 'Y'. + + config MTD_M25P80 +- tristate "Support for M25 SPI Flash" ++ tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)" + depends on SPI_MASTER && EXPERIMENTAL + help +- This enables access to ST M25P80 and similar SPI flash chips, +- used for program and data storage. Set up your spi devices +- with the right board-specific platform data. ++ This enables access to most modern SPI flash chips, used for ++ program and data storage. Series supported include Atmel AT26DF, ++ Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips ++ are supported as well. See the driver source for the current list, ++ or to add other chips. ++ ++ Note that the original DataFlash chips (AT45 series, not AT26DF), ++ need an entirely different driver. ++ ++ Set up your spi devices with the right board-specific platform data, ++ if you want to specify device partitioning or to use a device which ++ doesn't support the JEDEC ID instruction. + + config MTD_SLRAM + tristate "Uncached system RAM" +Index: linux-2.6.23.17/drivers/mtd/devices/m25p80.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/devices/m25p80.c ++++ linux-2.6.23.17/drivers/mtd/devices/m25p80.c +@@ -1,5 +1,5 @@ + /* +- * MTD SPI driver for ST M25Pxx flash chips ++ * MTD SPI driver for ST M25Pxx (and similar) serial flash chips + * + * Author: Mike Lavender, mike@steroidmicros.com + * +@@ -19,33 +19,32 @@ + #include <linux/module.h> + #include <linux/device.h> + #include <linux/interrupt.h> +-#include <linux/interrupt.h> ++#include <linux/mutex.h> ++ + #include <linux/mtd/mtd.h> + #include <linux/mtd/partitions.h> ++ + #include <linux/spi/spi.h> + #include <linux/spi/flash.h> + +-#include <asm/semaphore.h> +- +- +-/* NOTE: AT 25F and SST 25LF series are very similar, +- * but commands for sector erase and chip id differ... +- */ + + #define FLASH_PAGESIZE 256 + + /* Flash opcodes. */ +-#define OPCODE_WREN 6 /* Write enable */ +-#define OPCODE_RDSR 5 /* Read status register */ +-#define OPCODE_READ 3 /* Read data bytes */ +-#define OPCODE_PP 2 /* Page program */ +-#define OPCODE_SE 0xd8 /* Sector erase */ +-#define OPCODE_RES 0xab /* Read Electronic Signature */ ++#define OPCODE_WREN 0x06 /* Write enable */ ++#define OPCODE_RDSR 0x05 /* Read status register */ ++#define OPCODE_READ 0x03 /* Read data bytes (low frequency) */ ++#define OPCODE_FAST_READ 0x0b /* Read data bytes (high frequency) */ ++#define OPCODE_PP 0x02 /* Page program (up to 256 bytes) */ ++#define OPCODE_BE_4K 0x20 /* Erase 4KiB block */ ++#define OPCODE_BE_32K 0x52 /* Erase 32KiB block */ ++#define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */ + #define OPCODE_RDID 0x9f /* Read JEDEC ID */ + + /* Status Register bits. */ + #define SR_WIP 1 /* Write in progress */ + #define SR_WEL 2 /* Write enable latch */ ++/* meaning of other SR_* bits may differ between vendors */ + #define SR_BP0 4 /* Block protect 0 */ + #define SR_BP1 8 /* Block protect 1 */ + #define SR_BP2 0x10 /* Block protect 2 */ +@@ -65,9 +64,10 @@ + + struct m25p { + struct spi_device *spi; +- struct semaphore lock; ++ struct mutex lock; + struct mtd_info mtd; +- unsigned partitioned; ++ unsigned partitioned:1; ++ u8 erase_opcode; + u8 command[4]; + }; + +@@ -150,8 +150,9 @@ static int wait_till_ready(struct m25p * + */ + static int erase_sector(struct m25p *flash, u32 offset) + { +- DEBUG(MTD_DEBUG_LEVEL3, "%s: %s at 0x%08x\n", flash->spi->dev.bus_id, +- __FUNCTION__, offset); ++ DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %dKiB at 0x%08x\n", ++ flash->spi->dev.bus_id, __FUNCTION__, ++ flash->mtd.erasesize / 1024, offset); + + /* Wait until finished previous write command. */ + if (wait_till_ready(flash)) +@@ -161,7 +162,7 @@ static int erase_sector(struct m25p *fla + write_enable(flash); + + /* Set up command buffer. */ +- flash->command[0] = OPCODE_SE; ++ flash->command[0] = flash->erase_opcode; + flash->command[1] = offset >> 16; + flash->command[2] = offset >> 8; + flash->command[3] = offset; +@@ -201,13 +202,17 @@ static int m25p80_erase(struct mtd_info + addr = instr->addr; + len = instr->len; + +- down(&flash->lock); ++ mutex_lock(&flash->lock); ++ ++ /* REVISIT in some cases we could speed up erasing large regions ++ * by using OPCODE_SE instead of OPCODE_BE_4K ++ */ + + /* now erase those sectors */ + while (len) { + if (erase_sector(flash, addr)) { + instr->state = MTD_ERASE_FAILED; +- up(&flash->lock); ++ mutex_unlock(&flash->lock); + return -EIO; + } + +@@ -215,7 +220,7 @@ static int m25p80_erase(struct mtd_info + len -= mtd->erasesize; + } + +- up(&flash->lock); ++ mutex_unlock(&flash->lock); + + instr->state = MTD_ERASE_DONE; + mtd_erase_callback(instr); +@@ -260,16 +265,19 @@ static int m25p80_read(struct mtd_info * + if (retlen) + *retlen = 0; + +- down(&flash->lock); ++ mutex_lock(&flash->lock); + + /* Wait till previous write/erase is done. */ + if (wait_till_ready(flash)) { + /* REVISIT status return?? */ +- up(&flash->lock); ++ mutex_unlock(&flash->lock); + return 1; + } + +- /* NOTE: OPCODE_FAST_READ (if available) is faster... */ ++ /* FIXME switch to OPCODE_FAST_READ. It's required for higher ++ * clocks; and at this writing, every chip this driver handles ++ * supports that opcode. ++ */ + + /* Set up the write data buffer. */ + flash->command[0] = OPCODE_READ; +@@ -281,7 +289,7 @@ static int m25p80_read(struct mtd_info * + + *retlen = m.actual_length - sizeof(flash->command); + +- up(&flash->lock); ++ mutex_unlock(&flash->lock); + + return 0; + } +@@ -323,7 +331,7 @@ static int m25p80_write(struct mtd_info + t[1].tx_buf = buf; + spi_message_add_tail(&t[1], &m); + +- down(&flash->lock); ++ mutex_lock(&flash->lock); + + /* Wait until finished previous write command. */ + if (wait_till_ready(flash)) +@@ -381,10 +389,10 @@ static int m25p80_write(struct mtd_info + if (retlen) + *retlen += m.actual_length + - sizeof(flash->command); +- } +- } ++ } ++ } + +- up(&flash->lock); ++ mutex_unlock(&flash->lock); + + return 0; + } +@@ -398,24 +406,118 @@ static int m25p80_write(struct mtd_info + + struct flash_info { + char *name; +- u8 id; +- u16 jedec_id; ++ ++ /* JEDEC id zero means "no ID" (most older chips); otherwise it has ++ * a high byte of zero plus three data bytes: the manufacturer id, ++ * then a two byte device id. ++ */ ++ u32 jedec_id; ++ ++ /* The size listed here is what works with OPCODE_SE, which isn't ++ * necessarily called a "sector" by the vendor. ++ */ + unsigned sector_size; +- unsigned n_sectors; ++ u16 n_sectors; ++ ++ u16 flags; ++#define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */ + }; + ++ ++/* NOTE: double check command sets and memory organization when you add ++ * more flash chips. This current list focusses on newer chips, which ++ * have been converging on command sets which including JEDEC ID. ++ */ + static struct flash_info __devinitdata m25p_data [] = { +- /* REVISIT: fill in JEDEC ids, for parts that have them */ +- { "m25p05", 0x05, 0x2010, 32 * 1024, 2 }, +- { "m25p10", 0x10, 0x2011, 32 * 1024, 4 }, +- { "m25p20", 0x11, 0x2012, 64 * 1024, 4 }, +- { "m25p40", 0x12, 0x2013, 64 * 1024, 8 }, +- { "m25p80", 0x13, 0x0000, 64 * 1024, 16 }, +- { "m25p16", 0x14, 0x2015, 64 * 1024, 32 }, +- { "m25p32", 0x15, 0x2016, 64 * 1024, 64 }, +- { "m25p64", 0x16, 0x2017, 64 * 1024, 128 }, ++ ++ /* Atmel -- some are (confusingly) marketed as "DataFlash" */ ++ { "at25fs010", 0x1f6601, 32 * 1024, 4, SECT_4K, }, ++ { "at25fs040", 0x1f6604, 64 * 1024, 8, SECT_4K, }, ++ ++ { "at25df041a", 0x1f4401, 64 * 1024, 8, SECT_4K, }, ++ ++ { "at26f004", 0x1f0400, 64 * 1024, 8, SECT_4K, }, ++ { "at26df081a", 0x1f4501, 64 * 1024, 16, SECT_4K, }, ++ { "at26df161a", 0x1f4601, 64 * 1024, 32, SECT_4K, }, ++ { "at26df321", 0x1f4701, 64 * 1024, 64, SECT_4K, }, ++ ++ /* Spansion -- single (large) sector size only, at least ++ * for the chips listed here (without boot sectors). ++ */ ++ { "s25sl004a", 0x010212, 64 * 1024, 8, }, ++ { "s25sl008a", 0x010213, 64 * 1024, 16, }, ++ { "s25sl016a", 0x010214, 64 * 1024, 32, }, ++ { "s25sl032a", 0x010215, 64 * 1024, 64, }, ++ { "s25sl064a", 0x010216, 64 * 1024, 128, }, ++ ++ /* SST -- large erase sizes are "overlays", "sectors" are 4K */ ++ { "sst25vf040b", 0xbf258d, 64 * 1024, 8, SECT_4K, }, ++ { "sst25vf080b", 0xbf258e, 64 * 1024, 16, SECT_4K, }, ++ { "sst25vf016b", 0xbf2541, 64 * 1024, 32, SECT_4K, }, ++ { "sst25vf032b", 0xbf254a, 64 * 1024, 64, SECT_4K, }, ++ ++ /* ST Microelectronics -- newer production may have feature updates */ ++ { "m25p05", 0x202010, 32 * 1024, 2, }, ++ { "m25p10", 0x202011, 32 * 1024, 4, }, ++ { "m25p20", 0x202012, 64 * 1024, 4, }, ++ { "m25p40", 0x202013, 64 * 1024, 8, }, ++ { "m25p80", 0, 64 * 1024, 16, }, ++ { "m25p16", 0x202015, 64 * 1024, 32, }, ++ { "m25p32", 0x202016, 64 * 1024, 64, }, ++ { "m25p64", 0x202017, 64 * 1024, 128, }, ++ { "m25p128", 0x202018, 256 * 1024, 64, }, ++ ++ { "m45pe80", 0x204014, 64 * 1024, 16, }, ++ { "m45pe16", 0x204015, 64 * 1024, 32, }, ++ ++ { "m25pe80", 0x208014, 64 * 1024, 16, }, ++ { "m25pe16", 0x208015, 64 * 1024, 32, SECT_4K, }, ++ ++ /* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */ ++ { "w25x10", 0xef3011, 64 * 1024, 2, SECT_4K, }, ++ { "w25x20", 0xef3012, 64 * 1024, 4, SECT_4K, }, ++ { "w25x40", 0xef3013, 64 * 1024, 8, SECT_4K, }, ++ { "w25x80", 0xef3014, 64 * 1024, 16, SECT_4K, }, ++ { "w25x16", 0xef3015, 64 * 1024, 32, SECT_4K, }, ++ { "w25x32", 0xef3016, 64 * 1024, 64, SECT_4K, }, ++ { "w25x64", 0xef3017, 64 * 1024, 128, SECT_4K, }, + }; + ++static struct flash_info *__devinit jedec_probe(struct spi_device *spi) ++{ ++ int tmp; ++ u8 code = OPCODE_RDID; ++ u8 id[3]; ++ u32 jedec; ++ struct flash_info *info; ++ ++ /* JEDEC also defines an optional "extended device information" ++ * string for after vendor-specific data, after the three bytes ++ * we use here. Supporting some chips might require using it. ++ */ ++ tmp = spi_write_then_read(spi, &code, 1, id, 3); ++ if (tmp < 0) { ++ DEBUG(MTD_DEBUG_LEVEL0, "%s: error %d reading JEDEC ID\n", ++ spi->dev.bus_id, tmp); ++ return NULL; ++ } ++ jedec = id[0]; ++ jedec = jedec << 8; ++ jedec |= id[1]; ++ jedec = jedec << 8; ++ jedec |= id[2]; ++ ++ for (tmp = 0, info = m25p_data; ++ tmp < ARRAY_SIZE(m25p_data); ++ tmp++, info++) { ++ if (info->jedec_id == jedec) ++ return info; ++ } ++ dev_err(&spi->dev, "unrecognized JEDEC id %06x\n", jedec); ++ return NULL; ++} ++ ++ + /* + * board specific setup should have ensured the SPI clock used here + * matches what the READ command supports, at least until this driver +@@ -429,37 +531,51 @@ static int __devinit m25p_probe(struct s + unsigned i; + + /* Platform data helps sort out which chip type we have, as +- * well as how this board partitions it. ++ * well as how this board partitions it. If we don't have ++ * a chip ID, try the JEDEC id commands; they'll work for most ++ * newer chips, even if we don't recognize the particular chip. + */ + data = spi->dev.platform_data; +- if (!data || !data->type) { +- /* FIXME some chips can identify themselves with RES +- * or JEDEC get-id commands. Try them ... +- */ +- DEBUG(MTD_DEBUG_LEVEL1, "%s: no chip id\n", +- spi->dev.bus_id); +- return -ENODEV; +- } ++ if (data && data->type) { ++ for (i = 0, info = m25p_data; ++ i < ARRAY_SIZE(m25p_data); ++ i++, info++) { ++ if (strcmp(data->type, info->name) == 0) ++ break; ++ } + +- for (i = 0, info = m25p_data; i < ARRAY_SIZE(m25p_data); i++, info++) { +- if (strcmp(data->type, info->name) == 0) +- break; +- } +- if (i == ARRAY_SIZE(m25p_data)) { +- DEBUG(MTD_DEBUG_LEVEL1, "%s: unrecognized id %s\n", +- spi->dev.bus_id, data->type); ++ /* unrecognized chip? */ ++ if (i == ARRAY_SIZE(m25p_data)) { ++ DEBUG(MTD_DEBUG_LEVEL0, "%s: unrecognized id %s\n", ++ spi->dev.bus_id, data->type); ++ info = NULL; ++ ++ /* recognized; is that chip really what's there? */ ++ } else if (info->jedec_id) { ++ struct flash_info *chip = jedec_probe(spi); ++ ++ if (!chip || chip != info) { ++ dev_warn(&spi->dev, "found %s, expected %s\n", ++ chip ? chip->name : "UNKNOWN", ++ info->name); ++ info = NULL; ++ } ++ } ++ } else ++ info = jedec_probe(spi); ++ ++ if (!info) + return -ENODEV; +- } + + flash = kzalloc(sizeof *flash, GFP_KERNEL); + if (!flash) + return -ENOMEM; + + flash->spi = spi; +- init_MUTEX(&flash->lock); ++ mutex_init(&flash->lock); + dev_set_drvdata(&spi->dev, flash); + +- if (data->name) ++ if (data && data->name) + flash->mtd.name = data->name; + else + flash->mtd.name = spi->dev.bus_id; +@@ -468,17 +584,25 @@ static int __devinit m25p_probe(struct s + flash->mtd.writesize = 1; + flash->mtd.flags = MTD_CAP_NORFLASH; + flash->mtd.size = info->sector_size * info->n_sectors; +- flash->mtd.erasesize = info->sector_size; + flash->mtd.erase = m25p80_erase; + flash->mtd.read = m25p80_read; + flash->mtd.write = m25p80_write; + ++ /* prefer "small sector" erase if possible */ ++ if (info->flags & SECT_4K) { ++ flash->erase_opcode = OPCODE_BE_4K; ++ flash->mtd.erasesize = 4096; ++ } else { ++ flash->erase_opcode = OPCODE_SE; ++ flash->mtd.erasesize = info->sector_size; ++ } ++ + dev_info(&spi->dev, "%s (%d Kbytes)\n", info->name, + flash->mtd.size / 1024); + + DEBUG(MTD_DEBUG_LEVEL2, +- "mtd .name = %s, .size = 0x%.8x (%uM) " +- ".erasesize = 0x%.8x (%uK) .numeraseregions = %d\n", ++ "mtd .name = %s, .size = 0x%.8x (%uMiB) " ++ ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n", + flash->mtd.name, + flash->mtd.size, flash->mtd.size / (1024*1024), + flash->mtd.erasesize, flash->mtd.erasesize / 1024, +@@ -488,7 +612,7 @@ static int __devinit m25p_probe(struct s + for (i = 0; i < flash->mtd.numeraseregions; i++) + DEBUG(MTD_DEBUG_LEVEL2, + "mtd.eraseregions[%d] = { .offset = 0x%.8x, " +- ".erasesize = 0x%.8x (%uK), " ++ ".erasesize = 0x%.8x (%uKiB), " + ".numblocks = %d }\n", + i, flash->mtd.eraseregions[i].offset, + flash->mtd.eraseregions[i].erasesize, +@@ -516,14 +640,14 @@ static int __devinit m25p_probe(struct s + } + + if (nr_parts > 0) { +- for (i = 0; i < data->nr_parts; i++) { ++ for (i = 0; i < nr_parts; i++) { + DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = " + "{.name = %s, .offset = 0x%.8x, " +- ".size = 0x%.8x (%uK) }\n", +- i, data->parts[i].name, +- data->parts[i].offset, +- data->parts[i].size, +- data->parts[i].size / 1024); ++ ".size = 0x%.8x (%uKiB) }\n", ++ i, parts[i].name, ++ parts[i].offset, ++ parts[i].size, ++ parts[i].size / 1024); + } + flash->partitioned = 1; + return add_mtd_partitions(&flash->mtd, parts, nr_parts); +@@ -560,6 +684,11 @@ static struct spi_driver m25p80_driver = + }, + .probe = m25p_probe, + .remove = __devexit_p(m25p_remove), ++ ++ /* REVISIT: many of these chips have deep power-down modes, which ++ * should clearly be entered on suspend() to minimize power use. ++ * And also when they're otherwise idle... ++ */ + }; + + +Index: linux-2.6.23.17/drivers/mtd/devices/mtd_dataflash.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/devices/mtd_dataflash.c ++++ linux-2.6.23.17/drivers/mtd/devices/mtd_dataflash.c +@@ -14,6 +14,7 @@ + #include <linux/slab.h> + #include <linux/delay.h> + #include <linux/device.h> ++#include <linux/mutex.h> + #include <linux/spi/spi.h> + #include <linux/spi/flash.h> + +@@ -89,7 +90,7 @@ struct dataflash { + unsigned short page_offset; /* offset in flash address */ + unsigned int page_size; /* of bytes per page */ + +- struct semaphore lock; ++ struct mutex lock; + struct spi_device *spi; + + struct mtd_info mtd; +@@ -167,7 +168,7 @@ static int dataflash_erase(struct mtd_in + x.len = 4; + spi_message_add_tail(&x, &msg); + +- down(&priv->lock); ++ mutex_lock(&priv->lock); + while (instr->len > 0) { + unsigned int pageaddr; + int status; +@@ -210,7 +211,7 @@ static int dataflash_erase(struct mtd_in + instr->len -= priv->page_size; + } + } +- up(&priv->lock); ++ mutex_unlock(&priv->lock); + + /* Inform MTD subsystem that erase is complete */ + instr->state = MTD_ERASE_DONE; +@@ -266,7 +267,7 @@ static int dataflash_read(struct mtd_inf + x[1].len = len; + spi_message_add_tail(&x[1], &msg); + +- down(&priv->lock); ++ mutex_lock(&priv->lock); + + /* Continuous read, max clock = f(car) which may be less than + * the peak rate available. Some chips support commands with +@@ -279,7 +280,7 @@ static int dataflash_read(struct mtd_inf + /* plus 4 "don't care" bytes */ + + status = spi_sync(priv->spi, &msg); +- up(&priv->lock); ++ mutex_unlock(&priv->lock); + + if (status >= 0) { + *retlen = msg.actual_length - 8; +@@ -336,7 +337,7 @@ static int dataflash_write(struct mtd_in + else + writelen = len; + +- down(&priv->lock); ++ mutex_lock(&priv->lock); + while (remaining > 0) { + DEBUG(MTD_DEBUG_LEVEL3, "write @ %i:%i len=%i\n", + pageaddr, offset, writelen); +@@ -441,7 +442,7 @@ static int dataflash_write(struct mtd_in + else + writelen = remaining; + } +- up(&priv->lock); ++ mutex_unlock(&priv->lock); + + return status; + } +@@ -463,7 +464,7 @@ add_dataflash(struct spi_device *spi, ch + if (!priv) + return -ENOMEM; + +- init_MUTEX(&priv->lock); ++ mutex_init(&priv->lock); + priv->spi = spi; + priv->page_size = pagesize; + priv->page_offset = pageoffset; +Index: linux-2.6.23.17/drivers/mtd/devices/pmc551.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/devices/pmc551.c ++++ linux-2.6.23.17/drivers/mtd/devices/pmc551.c +@@ -30,8 +30,8 @@ + * + * Notes: + * Due to what I assume is more buggy SROM, the 64M PMC551 I +- * have available claims that all 4 of it's DRAM banks have 64M +- * of ram configured (making a grand total of 256M onboard). ++ * have available claims that all 4 of its DRAM banks have 64MiB ++ * of ram configured (making a grand total of 256MiB onboard). + * This is slightly annoying since the BAR0 size reflects the + * aperture size, not the dram size, and the V370PDC supplies no + * other method for memory size discovery. This problem is +@@ -70,7 +70,7 @@ + * made the memory unusable, added a fix to code to touch up + * the DRAM some. + * +- * Bugs/FIXME's: ++ * Bugs/FIXMEs: + * * MUST fix the init function to not spin on a register + * waiting for it to set .. this does not safely handle busted + * devices that never reset the register correctly which will +@@ -562,10 +562,10 @@ static u32 fixup_pmc551(struct pci_dev * + /* + * Some screen fun + */ +- printk(KERN_DEBUG "pmc551: %d%c (0x%x) of %sprefetchable memory at " ++ printk(KERN_DEBUG "pmc551: %d%sB (0x%x) of %sprefetchable memory at " + "0x%llx\n", (size < 1024) ? size : (size < 1048576) ? + size >> 10 : size >> 20, +- (size < 1024) ? 'B' : (size < 1048576) ? 'K' : 'M', size, ++ (size < 1024) ? "" : (size < 1048576) ? "Ki" : "Mi", size, + ((dcmd & (0x1 << 3)) == 0) ? "non-" : "", + (unsigned long long)pci_resource_start(dev, 0)); + +@@ -649,14 +649,10 @@ MODULE_DESCRIPTION(PMC551_VERSION); + * Stuff these outside the ifdef so as to not bust compiled in driver support + */ + static int msize = 0; +-#if defined(CONFIG_MTD_PMC551_APERTURE_SIZE) +-static int asize = CONFIG_MTD_PMC551_APERTURE_SIZE; +-#else + static int asize = 0; +-#endif + + module_param(msize, int, 0); +-MODULE_PARM_DESC(msize, "memory size in Megabytes [1 - 1024]"); ++MODULE_PARM_DESC(msize, "memory size in MiB [1 - 1024]"); + module_param(asize, int, 0); + MODULE_PARM_DESC(asize, "aperture size, must be <= memsize [1-1024]"); + +@@ -799,8 +795,7 @@ static int __init init_pmc551(void) + mtd->owner = THIS_MODULE; + + if (add_mtd_device(mtd)) { +- printk(KERN_NOTICE "pmc551: Failed to register new " +- "device\n"); ++ printk(KERN_NOTICE "pmc551: Failed to register new device\n"); + pci_iounmap(PCI_Device, priv->start); + kfree(mtd->priv); + kfree(mtd); +@@ -811,13 +806,13 @@ static int __init init_pmc551(void) + pci_dev_get(PCI_Device); + + printk(KERN_NOTICE "Registered pmc551 memory device.\n"); +- printk(KERN_NOTICE "Mapped %dM of memory from 0x%p to 0x%p\n", ++ printk(KERN_NOTICE "Mapped %dMiB of memory from 0x%p to 0x%p\n", + priv->asize >> 20, + priv->start, priv->start + priv->asize); +- printk(KERN_NOTICE "Total memory is %d%c\n", ++ printk(KERN_NOTICE "Total memory is %d%sB\n", + (length < 1024) ? length : + (length < 1048576) ? length >> 10 : length >> 20, +- (length < 1024) ? 'B' : (length < 1048576) ? 'K' : 'M'); ++ (length < 1024) ? "" : (length < 1048576) ? "Ki" : "Mi"); + priv->nextpmc551 = pmc551list; + pmc551list = mtd; + found++; +@@ -850,7 +845,7 @@ static void __exit cleanup_pmc551(void) + pmc551list = priv->nextpmc551; + + if (priv->start) { +- printk(KERN_DEBUG "pmc551: unmapping %dM starting at " ++ printk(KERN_DEBUG "pmc551: unmapping %dMiB starting at " + "0x%p\n", priv->asize >> 20, priv->start); + pci_iounmap(priv->dev, priv->start); + } +Index: linux-2.6.23.17/drivers/mtd/maps/nettel.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/maps/nettel.c ++++ linux-2.6.23.17/drivers/mtd/maps/nettel.c +@@ -158,68 +158,11 @@ static struct notifier_block nettel_noti + nettel_reboot_notifier, NULL, 0 + }; + +-/* +- * Erase the configuration file system. +- * Used to support the software reset button. +- */ +-static void nettel_erasecallback(struct erase_info *done) +-{ +- wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv; +- wake_up(wait_q); +-} +- +-static struct erase_info nettel_erase; +- +-int nettel_eraseconfig(void) +-{ +- struct mtd_info *mtd; +- DECLARE_WAITQUEUE(wait, current); +- wait_queue_head_t wait_q; +- int ret; +- +- init_waitqueue_head(&wait_q); +- mtd = get_mtd_device(NULL, 2); +- if (!IS_ERR(mtd)) { +- nettel_erase.mtd = mtd; +- nettel_erase.callback = nettel_erasecallback; +- nettel_erase.callback = NULL; +- nettel_erase.addr = 0; +- nettel_erase.len = mtd->size; +- nettel_erase.priv = (u_long) &wait_q; +- nettel_erase.priv = 0; +- +- set_current_state(TASK_INTERRUPTIBLE); +- add_wait_queue(&wait_q, &wait); +- +- ret = mtd->erase(mtd, &nettel_erase); +- if (ret) { +- set_current_state(TASK_RUNNING); +- remove_wait_queue(&wait_q, &wait); +- put_mtd_device(mtd); +- return(ret); +- } +- +- schedule(); /* Wait for erase to finish. */ +- remove_wait_queue(&wait_q, &wait); +- +- put_mtd_device(mtd); +- } +- +- return(0); +-} +- +-#else +- +-int nettel_eraseconfig(void) +-{ +- return(0); +-} +- + #endif + + /****************************************************************************/ + +-int __init nettel_init(void) ++static int __init nettel_init(void) + { + volatile unsigned long *amdpar; + unsigned long amdaddr, maxsize; +@@ -421,10 +364,6 @@ int __init nettel_init(void) + + intel_mtd->owner = THIS_MODULE; + +-#ifndef CONFIG_BLK_DEV_INITRD +- ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, 1); +-#endif +- + num_intel_partitions = sizeof(nettel_intel_partitions) / + sizeof(nettel_intel_partitions[0]); + +@@ -477,7 +416,7 @@ out_unmap2: + + /****************************************************************************/ + +-void __exit nettel_cleanup(void) ++static void __exit nettel_cleanup(void) + { + #ifdef CONFIG_MTD_CFI_INTELEXT + unregister_reboot_notifier(&nettel_notifier_block); +Index: linux-2.6.23.17/drivers/mtd/maps/pmcmsp-ramroot.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/maps/pmcmsp-ramroot.c ++++ linux-2.6.23.17/drivers/mtd/maps/pmcmsp-ramroot.c +@@ -79,7 +79,6 @@ static int __init init_rrmap(void) + rr_mtd->owner = THIS_MODULE; + + add_mtd_device(rr_mtd); +- ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, rr_mtd->index); + + return 0; + } +Index: linux-2.6.23.17/drivers/mtd/mtd_blkdevs.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/mtd_blkdevs.c ++++ linux-2.6.23.17/drivers/mtd/mtd_blkdevs.c +@@ -24,10 +24,9 @@ + #include <linux/kthread.h> + #include <asm/uaccess.h> + +-static LIST_HEAD(blktrans_majors); ++#include "mtdcore.h" + +-extern struct mutex mtd_table_mutex; +-extern struct mtd_info *mtd_table[]; ++static LIST_HEAD(blktrans_majors); + + struct mtd_blkcore_priv { + struct task_struct *thread; +@@ -202,7 +201,7 @@ static int blktrans_ioctl(struct inode * + } + } + +-struct block_device_operations mtd_blktrans_ops = { ++static struct block_device_operations mtd_blktrans_ops = { + .owner = THIS_MODULE, + .open = blktrans_open, + .release = blktrans_release, +Index: linux-2.6.23.17/drivers/mtd/mtdchar.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/mtdchar.c ++++ linux-2.6.23.17/drivers/mtd/mtdchar.c +@@ -137,7 +137,8 @@ static int mtd_close(struct inode *inode + + DEBUG(MTD_DEBUG_LEVEL0, "MTD_close\n"); + +- if (mtd->sync) ++ /* Only sync if opened RW */ ++ if ((file->f_mode & 2) && mtd->sync) + mtd->sync(mtd); + + put_mtd_device(mtd); +Index: linux-2.6.23.17/drivers/mtd/mtdcore.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/mtdcore.c ++++ linux-2.6.23.17/drivers/mtd/mtdcore.c +@@ -22,6 +22,8 @@ + + #include <linux/mtd/mtd.h> + ++#include "mtdcore.h" ++ + /* These are exported solely for the purpose of mtd_blkdevs.c. You + should not use them for _anything_ else */ + DEFINE_MUTEX(mtd_table_mutex); +Index: linux-2.6.23.17/drivers/mtd/nand/Kconfig +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/nand/Kconfig ++++ linux-2.6.23.17/drivers/mtd/nand/Kconfig +@@ -134,10 +134,10 @@ config MTD_NAND_S3C2410_HWECC + + config MTD_NAND_NDFC + tristate "NDFC NanD Flash Controller" +- depends on 44x ++ depends on 4xx + select MTD_NAND_ECC_SMC + help +- NDFC Nand Flash Controllers are integrated in EP44x SoCs ++ NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs + + config MTD_NAND_S3C2410_CLKSTOP + bool "S3C2410 NAND IDLE clock stop" +@@ -237,7 +237,7 @@ config MTD_NAND_CAFE + select REED_SOLOMON + select REED_SOLOMON_DEC16 + help +- Use NAND flash attached to the CAFÉ chip designed for the $100 ++ Use NAND flash attached to the CAFÉ chip designed for the OLPC + laptop. + + config MTD_NAND_CS553X +Index: linux-2.6.23.17/drivers/mtd/nand/cafe_nand.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/nand/cafe_nand.c ++++ linux-2.6.23.17/drivers/mtd/nand/cafe_nand.c +@@ -822,14 +822,53 @@ static struct pci_device_id cafe_nand_tb + + MODULE_DEVICE_TABLE(pci, cafe_nand_tbl); + ++static int cafe_nand_resume(struct pci_dev *pdev) ++{ ++ uint32_t timing1, timing2, timing3; ++ uint32_t ctrl; ++ struct mtd_info *mtd = pci_get_drvdata(pdev); ++ struct cafe_priv *cafe = mtd->priv; ++ ++ timing1 = timing2 = timing3 = 0xffffffff; ++ /* Start off by resetting the NAND controller completely */ ++ cafe_writel(cafe, 1, NAND_RESET); ++ cafe_writel(cafe, 0, NAND_RESET); ++ cafe_writel(cafe, timing1, NAND_TIMING1); ++ cafe_writel(cafe, timing2, NAND_TIMING2); ++ cafe_writel(cafe, timing3, NAND_TIMING3); ++ cafe_writel(cafe, 0xffffffff, NAND_IRQ_MASK); ++ ++ /* Disable master reset, enable NAND clock */ ++ ctrl = cafe_readl(cafe, GLOBAL_CTRL); ++ ctrl &= 0xffffeff0; ++ ctrl |= 0x00007000; ++ cafe_writel(cafe, ctrl | 0x05, GLOBAL_CTRL); ++ cafe_writel(cafe, ctrl | 0x0a, GLOBAL_CTRL); ++ cafe_writel(cafe, 0, NAND_DMA_CTRL); ++ cafe_writel(cafe, 0x7006, GLOBAL_CTRL); ++ cafe_writel(cafe, 0x700a, GLOBAL_CTRL); ++ ++ /* Set up DMA address */ ++ cafe_writel(cafe, cafe->dmaaddr & 0xffffffff, NAND_DMA_ADDR0); ++ if (sizeof(cafe->dmaaddr) > 4) ++ /* Shift in two parts to shut the compiler up */ ++ cafe_writel(cafe, (cafe->dmaaddr >> 16) >> 16, NAND_DMA_ADDR1); ++ else ++ cafe_writel(cafe, 0, NAND_DMA_ADDR1); ++ ++ /* Enable NAND IRQ in global IRQ mask register */ ++ cafe_writel(cafe, 0x80000007, GLOBAL_IRQ_MASK); ++ return 0; ++} ++ + static struct pci_driver cafe_nand_pci_driver = { + .name = "CAFÉ NAND", + .id_table = cafe_nand_tbl, + .probe = cafe_nand_probe, + .remove = __devexit_p(cafe_nand_remove), ++ .resume = cafe_nand_resume, + #ifdef CONFIG_PMx + .suspend = cafe_nand_suspend, +- .resume = cafe_nand_resume, + #endif + }; + +Index: linux-2.6.23.17/drivers/mtd/nand/ndfc.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/nand/ndfc.c ++++ linux-2.6.23.17/drivers/mtd/nand/ndfc.c +@@ -24,7 +24,11 @@ + #include <linux/platform_device.h> + + #include <asm/io.h> ++#ifdef CONFIG_40x ++#include <asm/ibm405.h> ++#else + #include <asm/ibm44x.h> ++#endif + + struct ndfc_nand_mtd { + struct mtd_info mtd; +@@ -230,7 +234,11 @@ static int ndfc_nand_probe(struct platfo + struct ndfc_controller *ndfc = &ndfc_ctrl; + unsigned long long phys = settings->ndfc_erpn | res->start; + ++#ifndef CONFIG_PHYS_64BIT ++ ndfc->ndfcbase = ioremap((phys_addr_t)phys, res->end - res->start + 1); ++#else + ndfc->ndfcbase = ioremap64(phys, res->end - res->start + 1); ++#endif + if (!ndfc->ndfcbase) { + printk(KERN_ERR "NDFC: ioremap failed\n"); + return -EIO; +Index: linux-2.6.23.17/drivers/mtd/onenand/Kconfig +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/onenand/Kconfig ++++ linux-2.6.23.17/drivers/mtd/onenand/Kconfig +@@ -40,4 +40,27 @@ config MTD_ONENAND_OTP + + OTP block is fully-guaranteed to be a valid block. + ++config MTD_ONENAND_2X_PROGRAM ++ bool "OneNAND 2X program support" ++ help ++ The 2X Program is an extension of Program Operation. ++ Since the device is equipped with two DataRAMs, and two-plane NAND ++ Flash memory array, these two component enables simultaneous program ++ of 4KiB. Plane1 has only even blocks such as block0, block2, block4 ++ while Plane2 has only odd blocks such as block1, block3, block5. ++ So MTD regards it as 4KiB page size and 256KiB block size ++ ++ Now the following chips support it. (KFXXX16Q2M) ++ Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M, ++ Mux: KFM2G16Q2M, KFN4G16Q2M, ++ ++ And more recent chips ++ ++config MTD_ONENAND_SIM ++ tristate "OneNAND simulator support" ++ depends on MTD_PARTITIONS ++ help ++ The simulator may simulate various OneNAND flash chips for the ++ OneNAND MTD layer. ++ + endif # MTD_ONENAND +Index: linux-2.6.23.17/drivers/mtd/onenand/Makefile +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/onenand/Makefile ++++ linux-2.6.23.17/drivers/mtd/onenand/Makefile +@@ -8,4 +8,7 @@ obj-$(CONFIG_MTD_ONENAND) += onenand.o + # Board specific. + obj-$(CONFIG_MTD_ONENAND_GENERIC) += generic.o + ++# Simulator ++obj-$(CONFIG_MTD_ONENAND_SIM) += onenand_sim.o ++ + onenand-objs = onenand_base.o onenand_bbt.o +Index: linux-2.6.23.17/drivers/mtd/onenand/onenand_base.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/mtd/onenand/onenand_base.c ++++ linux-2.6.23.17/drivers/mtd/onenand/onenand_base.c +@@ -206,6 +206,15 @@ static int onenand_command(struct mtd_in + default: + block = (int) (addr >> this->erase_shift); + page = (int) (addr >> this->page_shift); ++ ++ if (ONENAND_IS_2PLANE(this)) { ++ /* Make the even block number */ ++ block &= ~1; ++ /* Is it the odd plane? */ ++ if (addr & this->writesize) ++ block++; ++ page >>= 1; ++ } + page &= this->page_mask; + break; + } +@@ -216,8 +225,12 @@ static int onenand_command(struct mtd_in + value = onenand_bufferram_address(this, block); + this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2); + +- /* Switch to the next data buffer */ +- ONENAND_SET_NEXT_BUFFERRAM(this); ++ if (ONENAND_IS_2PLANE(this)) ++ /* It is always BufferRAM0 */ ++ ONENAND_SET_BUFFERRAM0(this); ++ else ++ /* Switch to the next data buffer */ ++ ONENAND_SET_NEXT_BUFFERRAM(this); + + return 0; + } +@@ -247,6 +260,8 @@ static int onenand_command(struct mtd_in + break; + + default: ++ if (ONENAND_IS_2PLANE(this) && cmd == ONENAND_CMD_PROG) ++ cmd = ONENAND_CMD_2X_PROG; + dataram = ONENAND_CURRENT_BUFFERRAM(this); + break; + } +@@ -445,8 +460,9 @@ static inline int onenand_bufferram_offs + struct onenand_chip *this = mtd->priv; + + if (ONENAND_CURRENT_BUFFERRAM(this)) { ++ /* Note: the 'this->writesize' is a real page size */ + if (area == ONENAND_DATARAM) +- return mtd->writesize; ++ return this->writesize; + if (area == ONENAND_SPARERAM) + return mtd->oobsize; + } +@@ -572,6 +588,30 @@ static int onenand_write_bufferram(struc + } + + /** ++ * onenand_get_2x_blockpage - [GENERIC] Get blockpage at 2x program mode ++ * @param mtd MTD data structure ++ * @param addr address to check ++ * @return blockpage address ++ * ++ * Get blockpage address at 2x program mode ++ */ ++static int onenand_get_2x_blockpage(struct mtd_info *mtd, loff_t addr) ++{ ++ struct onenand_chip *this = mtd->priv; ++ int blockpage, block, page; ++ ++ /* Calculate the even block number */ ++ block = (int) (addr >> this->erase_shift) & ~1; ++ /* Is it the odd plane? */ ++ if (addr & this->writesize) ++ block++; ++ page = (int) (addr >> (this->page_shift + 1)) & this->page_mask; ++ blockpage = (block << 7) | page; ++ ++ return blockpage; ++} ++ ++/** + * onenand_check_bufferram - [GENERIC] Check BufferRAM information + * @param mtd MTD data structure + * @param addr address to check +@@ -585,7 +625,10 @@ static int onenand_check_bufferram(struc + int blockpage, found = 0; + unsigned int i; + +- blockpage = (int) (addr >> this->page_shift); ++ if (ONENAND_IS_2PLANE(this)) ++ blockpage = onenand_get_2x_blockpage(mtd, addr); ++ else ++ blockpage = (int) (addr >> this->page_shift); + + /* Is there valid data? */ + i = ONENAND_CURRENT_BUFFERRAM(this); +@@ -625,7 +668,10 @@ static void onenand_update_bufferram(str + int blockpage; + unsigned int i; + +- blockpage = (int) (addr >> this->page_shift); ++ if (ONENAND_IS_2PLANE(this)) ++ blockpage = onenand_get_2x_blockpage(mtd, addr); ++ else ++ blockpage = (int) (addr >> this->page_shift); + + /* Invalidate another BufferRAM */ + i = ONENAND_NEXT_BUFFERRAM(this); +@@ -734,6 +780,7 @@ static int onenand_read(struct mtd_info + int read = 0, column; + int thislen; + int ret = 0, boundary = 0; ++ int writesize = this->writesize; + + DEBUG(MTD_DEBUG_LEVEL3, "onenand_read: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len); + +@@ -754,22 +801,22 @@ static int onenand_read(struct mtd_info + /* Do first load to bufferRAM */ + if (read < len) { + if (!onenand_check_bufferram(mtd, from)) { +- this->command(mtd, ONENAND_CMD_READ, from, mtd->writesize); ++ this->command(mtd, ONENAND_CMD_READ, from, writesize); + ret = this->wait(mtd, FL_READING); + onenand_update_bufferram(mtd, from, !ret); + } + } + +- thislen = min_t(int, mtd->writesize, len - read); +- column = from & (mtd->writesize - 1); +- if (column + thislen > mtd->writesize) +- thislen = mtd->writesize - column; ++ thislen = min_t(int, writesize, len - read); ++ column = from & (writesize - 1); ++ if (column + thislen > writesize) ++ thislen = writesize - column; + + while (!ret) { + /* If there is more to load then start next load */ + from += thislen; + if (read + thislen < len) { +- this->command(mtd, ONENAND_CMD_READ, from, mtd->writesize); ++ this->command(mtd, ONENAND_CMD_READ, from, writesize); + /* + * Chip boundary handling in DDP + * Now we issued chip 1 read and pointed chip 1 +@@ -794,7 +841,7 @@ static int onenand_read(struct mtd_info + this->write_word(ONENAND_DDP_CHIP1, this->base + ONENAND_REG_START_ADDRESS2); + ONENAND_SET_NEXT_BUFFERRAM(this); + buf += thislen; +- thislen = min_t(int, mtd->writesize, len - read); ++ thislen = min_t(int, writesize, len - read); + column = 0; + cond_resched(); + /* Now wait for load */ +@@ -1079,7 +1126,7 @@ int onenand_bbt_read_oob(struct mtd_info + /* Read more? */ + if (read < len) { + /* Update Page size */ +- from += mtd->writesize; ++ from += this->writesize; + column = 0; + } + } +@@ -1135,12 +1182,12 @@ static int onenand_verify(struct mtd_inf + int thislen, column; + + while (len != 0) { +- thislen = min_t(int, mtd->writesize, len); +- column = addr & (mtd->writesize - 1); +- if (column + thislen > mtd->writesize) +- thislen = mtd->writesize - column; ++ thislen = min_t(int, this->writesize, len); ++ column = addr & (this->writesize - 1); ++ if (column + thislen > this->writesize) ++ thislen = this->writesize - column; + +- this->command(mtd, ONENAND_CMD_READ, addr, mtd->writesize); ++ this->command(mtd, ONENAND_CMD_READ, addr, this->writesize); + + onenand_update_bufferram(mtd, addr, 0); + +@@ -1236,6 +1283,10 @@ static int onenand_write(struct mtd_info + + /* In partial page write we don't update bufferram */ + onenand_update_bufferram(mtd, to, !ret && !subpage); ++ if (ONENAND_IS_2PLANE(this)) { ++ ONENAND_SET_BUFFERRAM1(this); ++ onenand_update_bufferram(mtd, to + this->writesize, !ret && !subpage); ++ } + + if (ret) { + printk(KERN_ERR "onenand_write: write filaed %d\n", ret); +@@ -1384,6 +1435,10 @@ static int onenand_do_write_oob(struct m + this->command(mtd, ONENAND_CMD_PROGOOB, to, mtd->oobsize); + + onenand_update_bufferram(mtd, to, 0); ++ if (ONENAND_IS_2PLANE(this)) { ++ ONENAND_SET_BUFFERRAM1(this); ++ onenand_update_bufferram(mtd, to + this->writesize, 0); ++ } + + ret = this->wait(mtd, FL_WRITING); + if (ret) { +@@ -2107,6 +2162,7 @@ static int onenand_lock_user_prot_reg(st + * + * Check and set OneNAND features + * - lock scheme ++ * - two plane + */ + static void onenand_check_features(struct mtd_info *mtd) + { +@@ -2118,19 +2174,35 @@ static void onenand_check_features(struc + process = this->version_id >> ONENAND_VERSION_PROCESS_SHIFT; + + /* Lock scheme */ +- if (density >= ONENAND_DEVICE_DENSITY_1Gb) { ++ switch (density) { ++ case ONENAND_DEVICE_DENSITY_4Gb: ++ this->options |= ONENAND_HAS_2PLANE; ++ ++ case ONENAND_DEVICE_DENSITY_2Gb: ++ /* 2Gb DDP don't have 2 plane */ ++ if (!ONENAND_IS_DDP(this)) ++ this->options |= ONENAND_HAS_2PLANE; ++ this->options |= ONENAND_HAS_UNLOCK_ALL; ++ ++ case ONENAND_DEVICE_DENSITY_1Gb: + /* A-Die has all block unlock */ +- if (process) { +- printk(KERN_DEBUG "Chip support all block unlock\n"); ++ if (process) + this->options |= ONENAND_HAS_UNLOCK_ALL; +- } +- } else { +- /* Some OneNAND has continues lock scheme */ +- if (!process) { +- printk(KERN_DEBUG "Lock scheme is Continues Lock\n"); ++ break; ++ ++ default: ++ /* Some OneNAND has continuous lock scheme */ ++ if (!process) + this->options |= ONENAND_HAS_CONT_LOCK; +- } ++ break; + } ++ ++ if (this->options & ONENAND_HAS_CONT_LOCK) ++ printk(KERN_DEBUG "Lock scheme is Continuous Lock\n"); ++ if (this->options & ONENAND_HAS_UNLOCK_ALL) ++ printk(KERN_DEBUG "Chip support all block unlock\n"); ++ if (this->options & ONENAND_HAS_2PLANE) ++ printk(KERN_DEBUG "Chip has 2 plane\n"); + } + + /** +@@ -2257,6 +2329,8 @@ static int onenand_probe(struct mtd_info + this->erase_shift = ffs(mtd->erasesize) - 1; + this->page_shift = ffs(mtd->writesize) - 1; + this->page_mask = (1 << (this->erase_shift - this->page_shift)) - 1; ++ /* It's real page size */ ++ this->writesize = mtd->writesize; + + /* REVIST: Multichip handling */ + +@@ -2265,6 +2339,17 @@ static int onenand_probe(struct mtd_info + /* Check OneNAND features */ + onenand_check_features(mtd); + ++ /* ++ * We emulate the 4KiB page and 256KiB erase block size ++ * But oobsize is still 64 bytes. ++ * It is only valid if you turn on 2X program support, ++ * Otherwise it will be ignored by compiler. ++ */ ++ if (ONENAND_IS_2PLANE(this)) { ++ mtd->writesize <<= 1; ++ mtd->erasesize <<= 1; ++ } ++ + return 0; + } + +Index: linux-2.6.23.17/drivers/pci/quirks.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/pci/quirks.c ++++ linux-2.6.23.17/drivers/pci/quirks.c +@@ -1396,6 +1396,17 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_IN + DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); + + /* ++ * According to Tom Sylla, the Geode does not support PCI power management ++ * transition, so we shouldn't need the D3hot delay. ++ */ ++static void __init quirk_geode_pci_pm(struct pci_dev *dev) ++{ ++ pci_pm_d3_delay = 0; ++} ++DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, quirk_geode_pci_pm); ++DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_geode_pci_pm); ++ ++/* + * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size + * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes. + * Re-allocate the region if needed... +Index: linux-2.6.23.17/drivers/video/Kconfig +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/Kconfig ++++ linux-2.6.23.17/drivers/video/Kconfig +@@ -594,7 +594,7 @@ config FB_TGA + + config FB_VESA + bool "VESA VGA graphics support" +- depends on (FB = y) && X86 ++ depends on (FB = y) && X86 && !VGA_NOPROBE + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT +@@ -1028,7 +1028,7 @@ config FB_CARILLO_RANCH + + config FB_INTEL + tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G support (EXPERIMENTAL)" +- depends on FB && EXPERIMENTAL && PCI && X86 ++ depends on FB && EXPERIMENTAL && PCI && X86 && !VGA_NOPROBE + select AGP + select AGP_INTEL + select FB_MODE_HELPERS +@@ -1383,7 +1383,7 @@ config FB_SAVAGE_ACCEL + + config FB_SIS + tristate "SiS/XGI display support" +- depends on FB && PCI ++ depends on FB && PCI && !VGA_NOPROBE + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT +@@ -1822,6 +1822,15 @@ config FB_PS3_DEFAULT_SIZE_M + The default value can be overridden on the kernel command line + using the "ps3fb" option (e.g. "ps3fb=9M"); + ++config FB_OLPC_DCON ++ tristate "One Laptop Per Child Display CONtroller support" ++ depends on OLPC ++ select I2C ++ ---help--- ++ Add support for the OLPC DCON controller. This controller is only ++ available on OLPC platforms. Unless you have one of these ++ platforms, you will want to say 'N'. ++ + config FB_XILINX + tristate "Xilinx frame buffer support" + depends on FB && XILINX_VIRTEX +Index: linux-2.6.23.17/drivers/video/Makefile +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/Makefile ++++ linux-2.6.23.17/drivers/video/Makefile +@@ -111,6 +111,7 @@ obj-$(CONFIG_FB_PNX4008_DUM_RGB) += pnx + obj-$(CONFIG_FB_IBM_GXT4500) += gxt4500.o + obj-$(CONFIG_FB_PS3) += ps3fb.o + obj-$(CONFIG_FB_SM501) += sm501fb.o ++obj-$(CONFIG_FB_OLPC_DCON) += olpc_dcon.o + obj-$(CONFIG_FB_XILINX) += xilinxfb.o + obj-$(CONFIG_FB_OMAP) += omap/ + +Index: linux-2.6.23.17/drivers/video/fbmem.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/fbmem.c ++++ linux-2.6.23.17/drivers/video/fbmem.c +@@ -820,6 +820,53 @@ static void try_to_load(int fb) + #endif /* CONFIG_KMOD */ + + int ++fb_powerup(struct fb_info *info) ++{ ++ int ret = 0; ++ ++ if (!info || info->state == FBINFO_STATE_RUNNING) ++ return 0; ++ ++ if (info->fbops->fb_powerup) ++ ret = info->fbops->fb_powerup(info); ++ ++ if (!ret) { ++ acquire_console_sem(); ++ fb_set_suspend(info, 0); ++ release_console_sem(); ++ } ++ ++ return ret; ++} ++ ++int ++fb_powerdown(struct fb_info *info) ++{ ++ int ret = 0; ++ ++ if (!info || info->state == FBINFO_STATE_SUSPENDED) ++ return 0; ++ ++ /* Tell everybody that the fbdev is going down */ ++ acquire_console_sem(); ++ fb_set_suspend(info, 1); ++ release_console_sem(); ++ ++ if (info->fbops->fb_powerdown) ++ ret = info->fbops->fb_powerdown(info); ++ ++ /* If the power down failed, then un-notify */ ++ ++ if (ret) { ++ acquire_console_sem(); ++ fb_set_suspend(info, 0); ++ release_console_sem(); ++ } ++ ++ return ret; ++} ++ ++int + fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var) + { + struct fb_fix_screeninfo *fix = &info->fix; +Index: linux-2.6.23.17/drivers/video/geode/Makefile +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/Makefile ++++ linux-2.6.23.17/drivers/video/geode/Makefile +@@ -5,5 +5,5 @@ obj-$(CONFIG_FB_GEODE_GX) += gxfb.o + obj-$(CONFIG_FB_GEODE_LX) += lxfb.o + + gx1fb-objs := gx1fb_core.o display_gx1.o video_cs5530.o +-gxfb-objs := gxfb_core.o display_gx.o video_gx.o ++gxfb-objs := gxfb_core.o display_gx.o video_gx.o suspend_gx.o + lxfb-objs := lxfb_core.o lxfb_ops.o +Index: linux-2.6.23.17/drivers/video/geode/display_gx.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/display_gx.c ++++ linux-2.6.23.17/drivers/video/geode/display_gx.c +@@ -11,26 +11,44 @@ + * Free Software Foundation; either version 2 of the License, or * (at your + * option) any later version. + */ ++ ++#include <linux/kernel.h> + #include <linux/spinlock.h> + #include <linux/fb.h> + #include <linux/delay.h> + #include <asm/io.h> + #include <asm/div64.h> + #include <asm/delay.h> ++#include <asm/olpc.h> + + #include "geodefb.h" + #include "display_gx.h" + +-#ifdef CONFIG_FB_GEODE_GX_SET_FBSIZE +-unsigned int gx_frame_buffer_size(void) ++static inline void rmwl(u32 val, u32 *reg) + { +- return CONFIG_FB_GEODE_GX_FBSIZE; ++ u32 in = readl(reg); ++ if (in != val) ++ writel(val, reg); + } +-#else ++ + unsigned int gx_frame_buffer_size(void) + { + unsigned int val; + ++#ifdef CONFIG_OLPC ++ if (machine_is_olpc() && !olpc_has_vsa()) { ++ u32 hi,lo; ++ rdmsr(GLIU0_P2D_RO0, lo, hi); ++ ++ /* Top page number */ ++ val = ((hi & 0xff) << 12) | ((lo & 0xfff00000) >> 20); ++ ++ val -= (lo & 0x000fffff); /* Subtract bottom page number */ ++ val += 1; /* Adjust page count */ ++ return (val << 12); ++ } ++#endif ++ + /* FB size is reported by a virtual register */ + /* Virtual register class = 0x02 */ + /* VG_MEM_SIZE(512Kb units) = 0x00 */ +@@ -41,7 +59,6 @@ unsigned int gx_frame_buffer_size(void) + val = (unsigned int)(inw(0xAC1E)) & 0xFFl; + return (val << 19); + } +-#endif + + int gx_line_delta(int xres, int bpp) + { +@@ -63,23 +80,23 @@ static void gx_set_mode(struct fb_info * + gcfg = readl(par->dc_regs + DC_GENERAL_CFG); + dcfg = readl(par->dc_regs + DC_DISPLAY_CFG); + +- /* Disable the timing generator. */ +- dcfg &= ~(DC_DCFG_TGEN); +- writel(dcfg, par->dc_regs + DC_DISPLAY_CFG); +- +- /* Wait for pending memory requests before disabling the FIFO load. */ +- udelay(100); +- +- /* Disable FIFO load and compression. */ +- gcfg &= ~(DC_GCFG_DFLE | DC_GCFG_CMPE | DC_GCFG_DECE); +- writel(gcfg, par->dc_regs + DC_GENERAL_CFG); +- +- /* Setup DCLK and its divisor. */ +- par->vid_ops->set_dclk(info); +- +- /* +- * Setup new mode. +- */ ++ /* Programming the clock is costly and ugly, so avoid if if we can */ ++ ++ if (par->curdclk != info->var.pixclock) { ++ /* Disable the timing generator. */ ++ dcfg &= ~(DC_DCFG_TGEN); ++ writel(dcfg, par->dc_regs + DC_DISPLAY_CFG); ++ ++ /* Wait for pending memory requests before disabling the FIFO load. */ ++ udelay(100); ++ ++ /* Disable FIFO load and compression. */ ++ gcfg &= ~(DC_GCFG_DFLE | DC_GCFG_CMPE | DC_GCFG_DECE); ++ writel(gcfg, par->dc_regs + DC_GENERAL_CFG); ++ ++ /* Setup DCLK and its divisor. */ ++ par->vid_ops->set_dclk(info); ++ } + + /* Clear all unused feature bits. */ + gcfg &= DC_GCFG_YUVM | DC_GCFG_VDSE; +@@ -90,12 +107,13 @@ static void gx_set_mode(struct fb_info * + gcfg |= (6 << DC_GCFG_DFHPEL_POS) | (5 << DC_GCFG_DFHPSL_POS) | DC_GCFG_DFLE; + + /* Framebuffer start offset. */ +- writel(0, par->dc_regs + DC_FB_ST_OFFSET); ++ rmwl(0, par->dc_regs + DC_FB_ST_OFFSET); + + /* Line delta and line buffer length. */ +- writel(info->fix.line_length >> 3, par->dc_regs + DC_GFX_PITCH); +- writel(((info->var.xres * info->var.bits_per_pixel/8) >> 3) + 2, +- par->dc_regs + DC_LINE_SIZE); ++ rmwl(info->fix.line_length >> 3, par->dc_regs + DC_GFX_PITCH); ++ ++ rmwl(((info->var.xres * info->var.bits_per_pixel/8) >> 3) + 2, ++ par->dc_regs + DC_LINE_SIZE); + + + /* Enable graphics and video data and unmask address lines. */ +@@ -134,17 +152,16 @@ static void gx_set_mode(struct fb_info * + vblankend = vsyncend + info->var.upper_margin; + vtotal = vblankend; + +- writel((hactive - 1) | ((htotal - 1) << 16), par->dc_regs + DC_H_ACTIVE_TIMING); +- writel((hblankstart - 1) | ((hblankend - 1) << 16), par->dc_regs + DC_H_BLANK_TIMING); +- writel((hsyncstart - 1) | ((hsyncend - 1) << 16), par->dc_regs + DC_H_SYNC_TIMING); +- +- writel((vactive - 1) | ((vtotal - 1) << 16), par->dc_regs + DC_V_ACTIVE_TIMING); +- writel((vblankstart - 1) | ((vblankend - 1) << 16), par->dc_regs + DC_V_BLANK_TIMING); +- writel((vsyncstart - 1) | ((vsyncend - 1) << 16), par->dc_regs + DC_V_SYNC_TIMING); ++ rmwl((hactive - 1) | ((htotal - 1) << 16), par->dc_regs + DC_H_ACTIVE_TIMING); ++ rmwl((hblankstart - 1) | ((hblankend - 1) << 16), par->dc_regs + DC_H_BLANK_TIMING); ++ rmwl((hsyncstart - 1) | ((hsyncend - 1) << 16), par->dc_regs + DC_H_SYNC_TIMING); ++ rmwl((vactive - 1) | ((vtotal - 1) << 16), par->dc_regs + DC_V_ACTIVE_TIMING); ++ rmwl((vblankstart - 1) | ((vblankend - 1) << 16), par->dc_regs + DC_V_BLANK_TIMING); ++ rmwl((vsyncstart - 1) | ((vsyncend - 1) << 16), par->dc_regs + DC_V_SYNC_TIMING); + + /* Write final register values. */ +- writel(dcfg, par->dc_regs + DC_DISPLAY_CFG); +- writel(gcfg, par->dc_regs + DC_GENERAL_CFG); ++ rmwl(dcfg, par->dc_regs + DC_DISPLAY_CFG); ++ rmwl(gcfg, par->dc_regs + DC_GENERAL_CFG); + + par->vid_ops->configure_display(info); + +Index: linux-2.6.23.17/drivers/video/geode/display_gx.h +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/display_gx.h ++++ linux-2.6.23.17/drivers/video/geode/display_gx.h +@@ -20,6 +20,9 @@ extern struct geode_dc_ops gx_dc_ops; + #define GLD_MSR_CONFIG 0xC0002001 + #define GLD_MSR_CONFIG_DM_FP 0x40 + ++/* Used for memory dection on the OLPC */ ++#define GLIU0_P2D_RO0 0x10000029 ++ + /* Display controller registers */ + + #define DC_UNLOCK 0x00 +Index: linux-2.6.23.17/drivers/video/geode/geodefb.h +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/geodefb.h ++++ linux-2.6.23.17/drivers/video/geode/geodefb.h +@@ -12,6 +12,10 @@ + #ifndef __GEODEFB_H__ + #define __GEODEFB_H__ + ++#define FB_POWER_STATE_OFF 0 ++#define FB_POWER_STATE_SUSPEND 1 ++#define FB_POWER_STATE_ON 2 ++ + struct geodefb_info; + + struct geode_dc_ops { +@@ -21,18 +25,24 @@ struct geode_dc_ops { + + struct geode_vid_ops { + void (*set_dclk)(struct fb_info *); ++ unsigned int (*get_dclk)(struct fb_info *); + void (*configure_display)(struct fb_info *); + int (*blank_display)(struct fb_info *, int blank_mode); + }; + + struct geodefb_par { + int enable_crt; ++ int fbactive; /* True if the current console is in KD_GRAPHICS mode */ + int panel_x; /* dimensions of an attached flat panel, non-zero => enable panel */ + int panel_y; ++ unsigned int curdclk; /* Used by GX to avoid unnessesary clock switching */ + void __iomem *dc_regs; + void __iomem *vid_regs; ++ void __iomem *gp_regs; + struct geode_dc_ops *dc_ops; + struct geode_vid_ops *vid_ops; ++ ++ int state; + }; + + #endif /* !__GEODEFB_H__ */ +Index: linux-2.6.23.17/drivers/video/geode/gxfb_core.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/gxfb_core.c ++++ linux-2.6.23.17/drivers/video/geode/gxfb_core.c +@@ -30,12 +30,31 @@ + #include <linux/fb.h> + #include <linux/init.h> + #include <linux/pci.h> ++#include <linux/notifier.h> ++#include <linux/vt_kern.h> ++#include <linux/console.h> ++#include <asm/uaccess.h> ++#include <asm/olpc.h> + + #include "geodefb.h" + #include "display_gx.h" + #include "video_gx.h" + ++#define FBIOSGAMMA _IOW('F', 0x20, void *) ++#define FBIOGGAMMA _IOW('F', 0x21, void *) ++ ++#ifdef DEBUG ++ ++#define FBIODUMPGP _IOW('F', 0x22, void *) ++#define FBIODUMPDC _IOW('F', 0x23, void *) ++#define FBIODUMPVP _IOW('F', 0x24, void *) ++#define FBIODUMPFP _IOW('F', 0x25, void *) ++ ++#endif ++ + static char *mode_option; ++static int noclear; ++struct fb_info *gxfb_info; + + /* Modes relevant to the GX (taken from modedb.c) */ + static const struct fb_videomode gx_modedb[] __initdata = { +@@ -103,8 +122,20 @@ static const struct fb_videomode gx_mode + { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1200x900-75 - CRT timings for the OLPC mode */ ++ { NULL, 75, 1200, 900, 8049, 104, 240, 29, 54, 136, 3, ++ 0, FB_VMODE_NONINTERLACED, 0 } + }; + ++#ifdef CONFIG_OLPC ++static const struct fb_videomode gx_dcon_modedb[] __initdata = { ++ /* The only mode the DCON has is 1200x900 */ ++ { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3, ++ 0, FB_VMODE_NONINTERLACED, 0 } ++}; ++#endif ++ ++ + static int gxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) + { + if (var->xres > 1600 || var->yres > 1200) +@@ -137,7 +168,7 @@ static int gxfb_check_var(struct fb_var_ + return 0; + } + +-static int gxfb_set_par(struct fb_info *info) ++int gxfb_set_par(struct fb_info *info) + { + struct geodefb_par *par = info->par; + +@@ -204,16 +235,26 @@ static int gxfb_blank(int blank_mode, st + return par->vid_ops->blank_display(info, blank_mode); + } + ++static int fbsize; ++ + static int __init gxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev) + { + struct geodefb_par *par = info->par; +- int fb_len; + int ret; + + ret = pci_enable_device(dev); + if (ret < 0) + return ret; + ++ ret = pci_request_region(dev, 1, "gxfb (graphics processor)"); ++ if (ret < 0) ++ return ret; ++ ++ par->gp_regs = ioremap(pci_resource_start(dev, 1), ++ pci_resource_len(dev, 1)); ++ if (!par->gp_regs) ++ return -ENOMEM; ++ + ret = pci_request_region(dev, 3, "gxfb (video processor)"); + if (ret < 0) + return ret; +@@ -232,36 +273,118 @@ static int __init gxfb_map_video_memory( + ret = pci_request_region(dev, 0, "gxfb (framebuffer)"); + if (ret < 0) + return ret; +- if ((fb_len = gx_frame_buffer_size()) < 0) +- return -ENOMEM; ++ ++ /* If the fbsize wasn't specified then try to probe it */ ++ ++ if (!fbsize) { ++ fbsize = gx_frame_buffer_size(); ++ if (fbsize == 0) ++ return -ENOMEM; ++ } ++ + info->fix.smem_start = pci_resource_start(dev, 0); +- info->fix.smem_len = fb_len; ++ info->fix.smem_len = fbsize; + info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); + if (!info->screen_base) + return -ENOMEM; + +- /* Set the 16MB aligned base address of the graphics memory region ++ /* Set the 16MiB aligned base address of the graphics memory region + * in the display controller */ + + writel(info->fix.smem_start & 0xFF000000, + par->dc_regs + DC_GLIU0_MEM_OFFSET); + +- dev_info(&dev->dev, "%d Kibyte of video memory at 0x%lx\n", ++ dev_info(&dev->dev, "%d KiB of video memory at 0x%lx\n", + info->fix.smem_len / 1024, info->fix.smem_start); + + return 0; + } + ++static int gxfb_ioctl( struct fb_info *info, unsigned int cmd, ++ unsigned long arg) ++{ ++ unsigned int gamma[GXFB_GAMMA_DWORDS]; ++ int ret = -EINVAL; ++ struct geodefb_par *par = info->par; ++ int i; ++ ++ switch(cmd) { ++ case FBIOSGAMMA: ++ /* Read the gamma information from the user - 256 dwords */ ++ ++ if (copy_from_user(gamma, (void * __user) arg, GXFB_GAMMA_SIZE)) ++ return -EFAULT; ++ ++ writel(0, par->vid_regs + GX_GAR); ++ ++ /* Sequential writes to the data register will increment the ++ address automatically */ ++ ++ for(i = 0; i < GXFB_GAMMA_DWORDS; i++) ++ writel(gamma[i] & 0xFFFFFF, par->vid_regs + GX_GDR); ++ ++ writel(readl(par->vid_regs + GX_MISC) & ~GX_MISC_GAM_EN, ++ par->vid_regs + GX_MISC); ++ ++ ret = 0; ++ break; ++ ++ case FBIOGGAMMA: ++ if (readl(par->vid_regs + GX_MISC) & GX_MISC_GAM_EN) ++ return -EINVAL; ++ ++ memset(gamma, 0, GXFB_GAMMA_SIZE); ++ writel(0, par->vid_regs + GX_GAR); ++ ++ for(i = 0; i < GXFB_GAMMA_DWORDS;i++) ++ gamma[i] = readl(par->vid_regs + GX_GDR); ++ ++ if (copy_to_user((void * __user) arg, gamma, GXFB_GAMMA_SIZE)) ++ ret = -EFAULT; ++ else ++ ret = 0; ++ ++ break; ++ ++#ifdef DEBUG ++ case FBIODUMPGP: ++ ret = 0; ++ dump_regs(info, 0); ++ break; ++ ++ case FBIODUMPDC: ++ ret = 0; ++ dump_regs(info, 1); ++ break; ++ ++ case FBIODUMPVP: ++ ret = 0; ++ dump_regs(info, 2); ++ break; ++ ++ case FBIODUMPFP: ++ ret = 0; ++ dump_regs(info, 3); ++ break; ++#endif ++ } ++ ++ return ret; ++} ++ + static struct fb_ops gxfb_ops = { + .owner = THIS_MODULE, + .fb_check_var = gxfb_check_var, + .fb_set_par = gxfb_set_par, + .fb_setcolreg = gxfb_setcolreg, + .fb_blank = gxfb_blank, ++ .fb_ioctl = gxfb_ioctl, + /* No HW acceleration for now. */ + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, ++ .fb_powerdown = gxfb_powerdown, ++ .fb_powerup = gxfb_powerup, + }; + + static struct fb_info * __init gxfb_init_fbinfo(struct device *dev) +@@ -303,23 +426,86 @@ static struct fb_info * __init gxfb_init + return info; + } + +-static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) ++static int gxfb_console_notify(struct notifier_block *self, ++ unsigned long action, void *data) ++{ ++ if (gxfb_info != NULL) { ++ struct geodefb_par *par = gxfb_info->par; ++ par->fbactive = (action == CONSOLE_EVENT_SWITCH_TEXT) ? 0 : 1; ++ } ++ ++ return NOTIFY_OK; ++} ++ ++static struct notifier_block gxfb_console_notifier = { ++ .notifier_call = gxfb_console_notify ++}; ++ ++#ifdef CONFIG_PM ++ ++static int gxfb_suspend(struct pci_dev *pdev, pm_message_t state) ++{ ++ struct fb_info *info = pci_get_drvdata(pdev); ++ struct geodefb_par *par = info->par; ++ ++ if (pdev->dev.power.power_state.event == state.event) ++ return 0; ++ ++ if (state.event == PM_EVENT_SUSPEND) { ++ ++ acquire_console_sem(); ++ gxfb_powerdown(info); ++ ++ par->state = FB_POWER_STATE_OFF; ++ fb_set_suspend(info, 1); ++ ++ release_console_sem(); ++ } ++ ++ pdev->dev.power.power_state = state; ++ return 0; ++} ++ ++static int gxfb_resume(struct pci_dev *pdev) ++{ ++ struct fb_info *info = pci_get_drvdata(pdev); ++ ++ acquire_console_sem(); ++ ++ /* Turn the engine completely on */ ++ ++ if (gxfb_powerup(info)) ++ printk(KERN_ERR "gxfb: Powerup failed\n"); ++ ++ fb_set_suspend(info, 0); ++ release_console_sem(); ++ ++ pdev->dev.power.power_state = PMSG_ON; ++ return 0; ++} ++#endif ++ ++static int __init gxfb_probe(struct pci_dev *pdev, ++ const struct pci_device_id *id) + { + struct geodefb_par *par; +- struct fb_info *info; + int ret; + unsigned long val; + +- info = gxfb_init_fbinfo(&pdev->dev); +- if (!info) ++ struct fb_videomode *modedb_ptr; ++ int modedb_size; ++ ++ gxfb_info = gxfb_init_fbinfo(&pdev->dev); ++ if (gxfb_info == NULL) + return -ENOMEM; +- par = info->par; ++ ++ par = gxfb_info->par; + + /* GX display controller and GX video device. */ + par->dc_ops = &gx_dc_ops; + par->vid_ops = &gx_vid_ops; + +- if ((ret = gxfb_map_video_memory(info, pdev)) < 0) { ++ if ((ret = gxfb_map_video_memory(gxfb_info, pdev)) < 0) { + dev_err(&pdev->dev, "failed to map frame buffer or controller registers\n"); + goto err; + } +@@ -333,32 +519,60 @@ static int __init gxfb_probe(struct pci_ + else + par->enable_crt = 1; + +- ret = fb_find_mode(&info->var, info, mode_option, +- gx_modedb, ARRAY_SIZE(gx_modedb), NULL, 16); ++ /* Get the current dotclock */ ++ ++ par->curdclk = (par->vid_ops->get_dclk) ? par->vid_ops->get_dclk(gxfb_info) : 0; ++ ++ /* We need to determine a display mode right now, so we will ++ * check to see if the DCON was previously detected by the BIOS ++ * and use that to make our mode database decision. ++ */ ++ ++ modedb_ptr = (struct fb_videomode *) gx_modedb; ++ modedb_size = ARRAY_SIZE(gx_modedb); ++ ++#ifdef CONFIG_OLPC ++ if (olpc_has_dcon()) { ++ modedb_ptr = (struct fb_videomode *) gx_dcon_modedb; ++ modedb_size = ARRAY_SIZE(gx_dcon_modedb); ++ } ++#endif ++ ++ ret = fb_find_mode(&gxfb_info->var, gxfb_info, mode_option, ++ modedb_ptr, modedb_size, NULL, 16); ++ + if (ret == 0 || ret == 4) { + dev_err(&pdev->dev, "could not find valid video mode\n"); + ret = -EINVAL; + goto err; + } + ++ /* Clear the screen of garbage, unless noclear was specified, ++ * in which case we assume the user knows what he is doing */ ++ ++ if (!noclear) ++ memset_io(gxfb_info->screen_base, 0, gxfb_info->fix.smem_len); ++ ++ gxfb_check_var(&gxfb_info->var, gxfb_info); ++ gxfb_set_par(gxfb_info); ++ ++ /* We are powered up */ ++ par->state = FB_POWER_STATE_ON; + +- /* Clear the frame buffer of garbage. */ +- memset_io(info->screen_base, 0, info->fix.smem_len); + +- gxfb_check_var(&info->var, info); +- gxfb_set_par(info); ++ console_event_register(&gxfb_console_notifier); + +- if (register_framebuffer(info) < 0) { ++ if (register_framebuffer(gxfb_info) < 0) { + ret = -EINVAL; + goto err; + } +- pci_set_drvdata(pdev, info); +- printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, info->fix.id); ++ pci_set_drvdata(pdev, gxfb_info); ++ printk(KERN_INFO "fb%d: %s frame buffer device\n", gxfb_info->node, gxfb_info->fix.id); + return 0; + + err: +- if (info->screen_base) { +- iounmap(info->screen_base); ++ if (gxfb_info->screen_base) { ++ iounmap(gxfb_info->screen_base); + pci_release_region(pdev, 0); + } + if (par->vid_regs) { +@@ -370,8 +584,9 @@ static int __init gxfb_probe(struct pci_ + pci_release_region(pdev, 2); + } + +- if (info) +- framebuffer_release(info); ++ if (gxfb_info) ++ framebuffer_release(gxfb_info); ++ + return ret; + } + +@@ -397,9 +612,7 @@ static void gxfb_remove(struct pci_dev * + } + + static struct pci_device_id gxfb_id_table[] = { +- { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_GX_VIDEO, +- PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16, +- 0xff0000, 0 }, ++ { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_GX_VIDEO) }, + { 0, } + }; + +@@ -410,22 +623,30 @@ static struct pci_driver gxfb_driver = { + .id_table = gxfb_id_table, + .probe = gxfb_probe, + .remove = gxfb_remove, ++#ifdef CONFIG_PM ++ .suspend = gxfb_suspend, ++ .resume = gxfb_resume ++#endif + }; + + #ifndef MODULE +-static int __init gxfb_setup(char *options) +-{ ++static int __init gxfb_setup(char *options) { + + char *opt; + + if (!options || !*options) + return 0; + +- while ((opt = strsep(&options, ",")) != NULL) { ++ while((opt = strsep(&options, ",")) != NULL) { + if (!*opt) + continue; + +- mode_option = opt; ++ if (!strncmp(opt, "fbsize:", 7)) ++ fbsize = simple_strtoul(opt+7, NULL, 0); ++ else if (!strcmp(opt, "noclear")) ++ noclear = 1; ++ else ++ mode_option = opt; + } + + return 0; +@@ -444,7 +665,6 @@ static int __init gxfb_init(void) + #endif + return pci_register_driver(&gxfb_driver); + } +- + static void __exit gxfb_cleanup(void) + { + pci_unregister_driver(&gxfb_driver); +@@ -456,5 +676,8 @@ module_exit(gxfb_cleanup); + module_param(mode_option, charp, 0); + MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])"); + ++module_param(fbsize, int, 0); ++MODULE_PARM_DESC(fbsize, "video memory size"); ++ + MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode GX"); + MODULE_LICENSE("GPL"); +Index: linux-2.6.23.17/drivers/video/geode/lxfb.h +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/lxfb.h ++++ linux-2.6.23.17/drivers/video/geode/lxfb.h +@@ -25,10 +25,23 @@ void lx_set_mode(struct fb_info *); + void lx_get_gamma(struct fb_info *, unsigned int *, int); + void lx_set_gamma(struct fb_info *, unsigned int *, int); + unsigned int lx_framebuffer_size(void); ++int lx_shutdown(struct fb_info *); ++int lx_powerup(struct fb_info *); + int lx_blank_display(struct fb_info *, int); + void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int, + unsigned int, unsigned int); + ++ ++ ++/* ioctl() defines */ ++ ++#define FBIOSGAMMA _IOW('F', 0x20, void *) ++#define FBIOGGAMMA _IOW('F', 0x21, void *) ++ ++/* General definitions */ ++#define LXFB_GAMMA_DWORDS 256 /* number of dwords in the gamma ram */ ++#define LXFB_GAMMA_SIZE (LXFB_GAMMA_DWORDS * sizeof(unsigned int)) ++ + /* MSRS */ + + #define MSR_LX_GLD_CONFIG 0x48002001 +Index: linux-2.6.23.17/drivers/video/geode/lxfb_core.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/lxfb_core.c ++++ linux-2.6.23.17/drivers/video/geode/lxfb_core.c +@@ -22,6 +22,7 @@ + #include <linux/init.h> + #include <linux/pci.h> + #include <linux/uaccess.h> ++#include <asm/olpc.h> + + #include "lxfb.h" + +@@ -35,186 +36,84 @@ static int fbsize; + */ + + const struct fb_videomode geode_modedb[] __initdata = { +- /* 640x480-60 */ +- { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2, ++ /* 640x480-60 VESA */ ++ { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2, ++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 640x480-75 VESA */ ++ { NULL, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3, ++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 640x480-85 VESA */ ++ { NULL, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3, ++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 800x600-60 VESA */ ++ { NULL, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 800x600-75 VESA */ ++ { NULL, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 800x600-85 VESA */ ++ { NULL, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1024x768-60 VESA */ ++ { NULL, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6, ++ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1024x768-75 VESA */ ++ { NULL, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1024x768-85 VESA */ ++ { NULL, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1280x960-60 VESA */ ++ { NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1280x960-85 VESA */ ++ { NULL, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1280x1024-60 VESA */ ++ { NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1280x1024-75 VESA */ ++ { NULL, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1280x1024-85 VESA */ ++ { NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 640x400-70 */ +- { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2, +- FB_SYNC_HOR_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 640x480-70 */ +- { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 640x480-72 */ +- { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 640x480-75 */ +- { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 640x480-85 */ +- { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 640x480-90 */ +- { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 640x480-100 */ +- { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 640x480-60 */ +- { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 800x600-56 */ +- { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 800x600-60 */ +- { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 800x600-70 */ +- { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 800x600-72 */ +- { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 800x600-75 */ +- { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 800x600-85 */ +- { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 800x600-90 */ +- { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 800x600-100 */ +- { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 800x600-60 */ +- { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 1024x768-60 */ +- { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 1024x768-70 */ +- { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 1024x768-72 */ +- { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1024x768-75 */ +- { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1024x768-85 */ +- { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1024x768-90 */ +- { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1024x768-100 */ +- { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1024x768-60 */ +- { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 1152x864-60 */ +- { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1152x864-70 */ +- { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1152x864-72 */ +- { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1152x864-75 */ +- { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1152x864-85 */ +- { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1152x864-90 */ +- { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1152x864-100 */ +- { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1152x864-60 */ +- { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 1280x1024-60 */ +- { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1280x1024-70 */ +- { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1280x1024-72 */ +- { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1280x1024-75 */ +- { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1280x1024-85 */ +- { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1280x1024-90 */ +- { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1280x1024-100 */ +- { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1280x1024-60 */ +- { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, +- FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 1600x1200-60 */ ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1600x1200-60 VESA */ + { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1600x1200-70 */ +- { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1600x1200-72 */ +- { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1600x1200-75 */ ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1600x1200-75 VESA */ + { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1600x1200-85 */ ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1600x1200-85 VESA */ + { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1600x1200-90 */ +- { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1600x1200-100 */ +- { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1600x1200-60 */ +- { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, +- FB_VMODE_NONINTERLACED, 0 }, +- /* 1920x1440-60 */ +- { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1920x1440-70 */ +- { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1920x1440-72 */ +- { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1920x1440-75 */ +- { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, +- /* 1920x1440-85 */ +- { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3, +- 0, FB_VMODE_NONINTERLACED, 0 }, ++ FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, ++ /* 1200x900-75 - CRT timings for the OLPC mode */ ++ { NULL, 75, 1200, 900, 8049, 104, 240, 29, 54, 136, 3, ++ 0, FB_VMODE_NONINTERLACED, 0 } + }; + ++#ifdef CONFIG_OLPC ++const struct fb_videomode olpc_dcon_modedb[] __initdata = { ++ /* The only mode the DCON has is 1200x900 */ ++ { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3, ++ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, ++ FB_VMODE_NONINTERLACED, 0 } ++}; ++#endif ++ + static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) + { + if (var->xres > 1920 || var->yres > 1440) +@@ -379,16 +278,55 @@ static int __init lxfb_map_video_memory( + return 0; + } + ++static int lxfb_set_gamma(struct fb_info *info, void * __user data) ++{ ++ unsigned int gamma[LXFB_GAMMA_DWORDS]; ++ ++ if (copy_from_user(gamma, data, LXFB_GAMMA_SIZE)) ++ return -EFAULT; ++ ++ lx_set_gamma(info, gamma, LXFB_GAMMA_SIZE); ++ return 0; ++} ++ ++static int lxfb_get_gamma(struct fb_info *info, void * __user data) ++{ ++ unsigned int gamma[LXFB_GAMMA_DWORDS]; ++ memset(gamma, 0, sizeof(gamma)); ++ ++ lx_get_gamma(info, gamma, LXFB_GAMMA_DWORDS); ++ ++ return copy_to_user(data, gamma, LXFB_GAMMA_SIZE) ? ++ -EFAULT : 0; ++} ++ ++static int lxfb_ioctl( struct fb_info *info, unsigned int cmd, ++ unsigned long arg) ++{ ++ switch(cmd) { ++ case FBIOSGAMMA: ++ return lxfb_set_gamma(info, (void * __user) arg); ++ ++ case FBIOGGAMMA: ++ return lxfb_get_gamma(info, (void * __user) arg); ++ } ++ ++ return -ENOTTY; ++} ++ + static struct fb_ops lxfb_ops = { + .owner = THIS_MODULE, + .fb_check_var = lxfb_check_var, + .fb_set_par = lxfb_set_par, + .fb_setcolreg = lxfb_setcolreg, + .fb_blank = lxfb_blank, ++ .fb_ioctl = lxfb_ioctl, + /* No HW acceleration for now. */ + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, ++ .fb_powerdown = lx_shutdown, ++ .fb_powerup = lx_powerup, + }; + + static struct fb_info * __init lxfb_init_fbinfo(struct device *dev) +@@ -431,6 +369,45 @@ static struct fb_info * __init lxfb_init + return info; + } + ++#ifdef CONFIG_PM ++ ++static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state) ++{ ++ struct fb_info *info = pci_get_drvdata(pdev); ++ ++ if (pdev->dev.power.power_state.event == state.event) ++ return 0; ++ ++ if (state.event == PM_EVENT_SUSPEND) { ++ ++ acquire_console_sem(); ++ lx_shutdown(info); ++ fb_set_suspend(info, 1); ++ release_console_sem(); ++ } ++ ++ pdev->dev.power.power_state = state; ++ return 0; ++} ++ ++static int lxfb_resume(struct pci_dev *pdev) ++{ ++ struct fb_info *info = pci_get_drvdata(pdev); ++ ++ acquire_console_sem(); ++ ++ /* Turn the engine completely on */ ++ ++ lx_powerup(info); ++ fb_set_suspend(info, 0); ++ release_console_sem(); ++ ++ pdev->dev.power.power_state = PMSG_ON; ++ return 0; ++} ++ ++#endif ++ + static int __init lxfb_probe(struct pci_dev *pdev, + const struct pci_device_id *id) + { +@@ -467,6 +444,13 @@ static int __init lxfb_probe(struct pci_ + modedb_ptr = (struct fb_videomode *) geode_modedb; + modedb_size = ARRAY_SIZE(geode_modedb); + ++#ifdef CONFIG_OLPC ++ if (olpc_has_dcon()) { ++ modedb_ptr = (struct fb_videomode *) olpc_dcon_modedb; ++ modedb_size = ARRAY_SIZE(olpc_dcon_modedb); ++ } ++#endif ++ + ret = fb_find_mode(&info->var, info, mode_option, + modedb_ptr, modedb_size, NULL, 16); + +@@ -556,6 +540,10 @@ static struct pci_driver lxfb_driver = { + .id_table = lxfb_id_table, + .probe = lxfb_probe, + .remove = lxfb_remove, ++#ifdef CONFIG_PM ++ .suspend = lxfb_suspend, ++ .resume = lxfb_resume ++#endif + }; + + #ifndef MODULE +Index: linux-2.6.23.17/drivers/video/geode/lxfb_ops.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/lxfb_ops.c ++++ linux-2.6.23.17/drivers/video/geode/lxfb_ops.c +@@ -13,9 +13,13 @@ + #include <linux/fb.h> + #include <linux/uaccess.h> + #include <linux/delay.h> ++#include <asm/olpc.h> + + #include "lxfb.h" + ++#define _GEODELX_ ++#include "geode_regs.h" ++ + /* TODO + * Support panel scaling + * Add acceleration +@@ -290,6 +294,19 @@ unsigned int lx_framebuffer_size(void) + { + unsigned int val; + ++#ifdef CONFIG_OLPC ++ if (machine_is_olpc() && !olpc_has_vsa()) { ++ u32 hi,lo; ++ rdmsr(MSR_LX_GLIU0_P2D_RO0, lo, hi); ++ ++ /* Top page number */ ++ val = ((hi & 0xff) << 12) | ((lo & 0xfff00000) >> 20); ++ val -= (lo & 0x000fffff); /* Subtract bottom page number */ ++ val += 1; /* Adjust page count */ ++ return (val << 12); ++ } ++#endif ++ + /* The frame buffer size is reported by a VSM in VSA II */ + /* Virtual Register Class = 0x02 */ + /* VG_MEM_SIZE (1MB units) = 0x00 */ +@@ -301,6 +318,34 @@ unsigned int lx_framebuffer_size(void) + return (val << 20); + } + ++void lx_set_gamma(struct fb_info *info, unsigned int *gamma, int len) ++{ ++ int i; ++ struct lxfb_par *par = info->par; ++ ++ writel(0, par->df_regs + DF_PAR); ++ ++ /* Sequential writes to the data register will increment the ++ address automatically */ ++ ++ for(i = 0; i < len; i++) ++ writel(gamma[i] & 0xFFFFFF, par->df_regs + DF_PDR); ++ ++ writel(readl(par->df_regs + DF_MISC) & ~DF_MISC_GAM_BYPASS, ++ par->df_regs + DF_MISC); ++} ++ ++void lx_get_gamma(struct fb_info *info, unsigned int *gamma, int len) ++{ ++ int i; ++ struct lxfb_par *par = info->par; ++ ++ writel(0, par->df_regs + DF_PAR); ++ ++ for(i = 0; i < len;i++) ++ gamma[i] = readl(par->df_regs + DF_PDR); ++} ++ + void lx_set_mode(struct fb_info *info) + { + struct lxfb_par *par = info->par; +@@ -313,6 +358,7 @@ void lx_set_mode(struct fb_info *info) + int vactive, vblankstart, vsyncstart, vsyncend, vblankend, vtotal; + + /* Unlock the DC registers */ ++ readl(par->dc_regs + DC_UNLOCK); + writel(DC_UNLOCK_CODE, par->dc_regs + DC_UNLOCK); + + lx_graphics_disable(info); +@@ -534,3 +580,285 @@ int lx_blank_display(struct fb_info *inf + + return 0; + } ++ ++static struct geoderegs saved_regs; ++ ++static void lx_save_regs(struct fb_info *info, struct geoderegs *regs) ++{ ++ struct lxfb_par *par = info->par; ++ int i; ++ ++ /* Wait for the command buffer to empty */ ++ while(!(readl(par->gp_regs + 0x44) & (1 << 4))); ++ ++ rdmsrl(MSR_LX_DF_PADSEL, regs->msr.padsel); ++ rdmsrl(MSR_LX_GLCP_DOTPLL, regs->msr.dotpll); ++ rdmsrl(MSR_LX_DF_GLCONFIG, regs->msr.dfglcfg); ++ rdmsrl(MSR_LX_DC_SPARE, regs->msr.dcspare); ++ ++ writel(0x4758, par->dc_regs + 0x00); ++ ++ memcpy(regs->gp.b, par->gp_regs, GP_REG_SIZE); ++ memcpy(regs->dc.b, par->dc_regs, DC_REG_SIZE); ++ memcpy(regs->vp.b, par->df_regs, VP_REG_SIZE); ++ memcpy(regs->fp.b, par->df_regs + VP_FP_START, FP_REG_SIZE); ++ ++ /* Save the palettes */ ++ writel(0, par->dc_regs + 0x70); ++ ++ for(i = 0; i < DC_PAL_SIZE; i++) ++ regs->pal[i] = readl(par->dc_regs + 0x74); ++ ++ writel(0, par->df_regs + 0x38); ++ ++ for(i = 0; i <= 0xFF; i++) ++ regs->gamma[i] = readl(par->df_regs + 0x40); ++} ++ ++static void lx_restore_regs(struct fb_info *info, struct geoderegs *regs) ++{ ++ struct lxfb_par *par = info->par; ++ u32 val, i; ++ ++ /* == DOTPLL == */ ++ ++ lx_set_dotpll((u32) (regs->msr.dotpll >> 32)); ++ ++ /* MSRs */ ++ ++ wrmsrl(MSR_LX_DF_GLCONFIG, regs->msr.dfglcfg); ++ ++ /* == GP == */ ++ ++ writel(regs->gp.r.dst_offset, par->gp_regs + 0x00); ++ writel(regs->gp.r.src_offset, par->gp_regs + 0x04); ++ writel(regs->gp.r.stride, par->gp_regs + 0x08); ++ writel(regs->gp.r.wid_height, par->gp_regs + 0x0C); ++ writel(regs->gp.r.src_color_fg, par->gp_regs + 0x10); ++ writel(regs->gp.r.src_color_bg, par->gp_regs + 0x14); ++ writel(regs->gp.r.pat_color_0, par->gp_regs + 0x18); ++ writel(regs->gp.r.pat_color_1, par->gp_regs + 0x1C); ++ writel(regs->gp.r.pat_color_2, par->gp_regs + 0x20); ++ writel(regs->gp.r.pat_color_3, par->gp_regs + 0x24); ++ writel(regs->gp.r.pat_color_4, par->gp_regs + 0x28); ++ writel(regs->gp.r.pat_color_5, par->gp_regs + 0x2C); ++ writel(regs->gp.r.pat_data_0, par->gp_regs + 0x30); ++ writel(regs->gp.r.pat_data_1, par->gp_regs + 0x34); ++ ++ /* Writing to these registers would cause a blt to happen */ ++ /* 0x38, 0x3c, 0x40 */ ++ ++ /* Status register (0x44) is read only */ ++ ++ writel(regs->gp.r.hst_src, par->gp_regs + 0x48); ++ writel(regs->gp.r.base_offset, par->gp_regs + 0x4c); ++ writel(regs->gp.r.cmd_top, par->gp_regs + 0x50); ++ writel(regs->gp.r.cmd_bot, par->gp_regs + 0x54); ++ writel(regs->gp.r.cmd_read, par->gp_regs + 0x58); ++ writel(regs->gp.r.cmd_write, par->gp_regs + 0x5C); ++ writel(regs->gp.r.ch3_offset, par->gp_regs + 0x60); ++ writel(regs->gp.r.ch3_mode_str, par->gp_regs + 0x64); ++ writel(regs->gp.r.ch3_width, par->gp_regs + 0x6C); ++ writel(regs->gp.r.ch3_hsrc, par->gp_regs + 0x70); ++ ++ /* FIXME: Restore the LUT data here */ ++ ++ writel(regs->gp.r.int_cntrl, par->gp_regs + 0x70); ++ ++ /* == DC == */ ++ ++ /* Write the unlock value */ ++ writel(0x4758, par->dc_regs + 0x00); ++ ++ /* Write the palette data first */ ++ ++ writel(0, par->dc_regs + 0x70); ++ ++ for(i = 0; i < DC_PAL_SIZE; i++) ++ writel(regs->pal[i], par->dc_regs + 0x74); ++ ++ /* MSRs */ ++ wrmsrl(MSR_LX_DC_SPARE, regs->msr.dcspare); ++ ++ /* Write the gcfg register without the enables */ ++ writel(regs->dc.r.gcfg & ~0x0F, par->dc_regs + 0x04); ++ ++ /* Write the vcfg register without the enables */ ++ writel(regs->dc.r.dcfg & ~0x19, par->dc_regs + 0x08); ++ ++ /* Write the rest of the active registers */ ++ writel(regs->dc.r.arb, par->dc_regs + 0x0C); ++ writel(regs->dc.r.fb_st_offset, par->dc_regs + 0x10); ++ writel(regs->dc.r.cb_st_offset, par->dc_regs + 0x14); ++ writel(regs->dc.r.curs_st_offset, par->dc_regs + 0x18); ++ writel(regs->dc.r.icon_st_offset, par->dc_regs + 0x1C); ++ writel(regs->dc.r.vid_y_st_offset, par->dc_regs + 0x20); ++ writel(regs->dc.r.vid_u_st_offset, par->dc_regs + 0x24); ++ writel(regs->dc.r.vid_v_st_offset, par->dc_regs + 0x28); ++ writel(regs->dc.r.dctop, par->dc_regs + 0x2c); ++ writel(regs->dc.r.line_size, par->dc_regs + 0x30); ++ writel(regs->dc.r.gfx_pitch, par->dc_regs + 0x34); ++ writel(regs->dc.r.vid_yuv_pitch, par->dc_regs + 0x38); ++ writel(regs->dc.r.h_active_timing, par->dc_regs + 0x40); ++ writel(regs->dc.r.h_blank_timing, par->dc_regs + 0x44); ++ writel(regs->dc.r.h_sync_timing, par->dc_regs + 0x48); ++ writel(regs->dc.r.v_active_timing, par->dc_regs + 0x50); ++ writel(regs->dc.r.v_blank_timing, par->dc_regs + 0x54); ++ writel(regs->dc.r.v_sync_timing, par->dc_regs + 0x58); ++ writel(regs->dc.r.fbactive, par->dc_regs + 0x5c); ++ writel(regs->dc.r.dc_cursor_x, par->dc_regs + 0x60); ++ writel(regs->dc.r.dc_cursor_y, par->dc_regs + 0x64); ++ writel(regs->dc.r.dc_icon_x, par->dc_regs + 0x68); ++ ++ /* Skip register 0x6C (line_cnt), 0x70/0x74 (palette), ++ 0x78 (diagnostic), and 0x7c (diagnostic) ++ */ ++ ++ writel(regs->dc.r.dc_vid_ds_delta, par->dc_regs + 0x80); ++ writel(regs->dc.r.gliu0_mem_offset, par->dc_regs + 0x84); ++ writel(regs->dc.r.dv_ctl, par->dc_regs + 0x88); ++ writel(regs->dc.r.dv_acc, par->dc_regs + 0x8C); ++ ++ writel(regs->dc.r.gfx_scale, par->dc_regs + 0x90); ++ writel(regs->dc.r.irq_filt_ctl, par->dc_regs + 0x94); ++ writel(regs->dc.r.filt_coeff1, par->dc_regs + 0x98); ++ writel(regs->dc.r.filt_coeff2, par->dc_regs + 0x9C); ++ writel(regs->dc.r.vbi_event_ctl, par->dc_regs + 0xA0); ++ ++ writel(regs->dc.r.vbi_odd_ctl, par->dc_regs + 0xA4); ++ writel(regs->dc.r.vbi_hor, par->dc_regs + 0xA8); ++ writel(regs->dc.r.vbi_ln_odd, par->dc_regs + 0xAC); ++ writel(regs->dc.r.vbi_ln_event, par->dc_regs + 0xB0); ++ writel(regs->dc.r.vbi_pitch, par->dc_regs + 0xB4); ++ writel(regs->dc.r.clr_key, par->dc_regs + 0xB8); ++ writel(regs->dc.r.clr_key_mask, par->dc_regs + 0xBC); ++ ++ writel(regs->dc.r.clr_key_x, par->dc_regs + 0xC0); ++ writel(regs->dc.r.clr_key_y, par->dc_regs + 0xC4); ++ writel(regs->dc.r.irq, par->dc_regs + 0xC8); ++ writel(regs->dc.r.genlk_ctrl, par->dc_regs + 0xD4); ++ ++ writel(regs->dc.r.vid_even_y_st_offset, par->dc_regs + 0xD8); ++ writel(regs->dc.r.vid_even_u_st_offset, par->dc_regs + 0xDC); ++ writel(regs->dc.r.vid_even_v_st_offset, par->dc_regs + 0xE0); ++ ++ writel(regs->dc.r.v_active_even_timing, par->dc_regs + 0xE4); ++ writel(regs->dc.r.v_blank_even_timing, par->dc_regs + 0xE8); ++ writel(regs->dc.r.v_sync_even_timing, par->dc_regs + 0xEC); ++ ++ /* == VP == */ ++ ++ /* MSR */ ++ wrmsrl(MSR_LX_DF_PADSEL, regs->msr.padsel); ++ ++ /* Write gamma information first */ ++ ++ writel(0, par->df_regs + 0x38); ++ ++ for(i = 0; i <= 0xFF; i++) ++ writel((u32) regs->gamma[i], par->df_regs + 0x40); ++ ++ /* Don't enable video yet */ ++ writel((u32) regs->vp.r.vcfg & ~0x01, par->df_regs + 0x00); ++ ++ /* Don't enable the CRT yet */ ++ writel((u32) regs->vp.r.dcfg & ~0x0F, par->df_regs + 0x08); ++ ++ /* Write the rest of the VP registers */ ++ ++ writel((u32) regs->vp.r.vx, par->df_regs + 0x10); ++ writel((u32) regs->vp.r.vy, par->df_regs + 0x18); ++ writel((u32) regs->vp.r.vs, par->df_regs + 0x20); ++ writel((u32) regs->vp.r.vck, par->df_regs + 0x28); ++ writel((u32) regs->vp.r.vcm, par->df_regs + 0x30); ++ writel((u32) regs->vp.r.misc, par->df_regs + 0x50); ++ writel((u32) regs->vp.r.ccs, par->df_regs + 0x58); ++ writel((u32) regs->vp.r.vdc, par->df_regs + 0x78); ++ writel((u32) regs->vp.r.vco, par->df_regs + 0x80); ++ writel((u32) regs->vp.r.crc, par->df_regs + 0x88); ++ writel((u32) regs->vp.r.vde, par->df_regs + 0x98); ++ writel((u32) regs->vp.r.cck, par->df_regs + 0xA0); ++ writel((u32) regs->vp.r.ccm, par->df_regs + 0xA8); ++ writel((u32) regs->vp.r.cc1, par->df_regs + 0xB0); ++ writel((u32) regs->vp.r.cc2, par->df_regs + 0xB8); ++ writel((u32) regs->vp.r.a1x, par->df_regs + 0xC0); ++ writel((u32) regs->vp.r.a1y, par->df_regs + 0xC8); ++ writel((u32) regs->vp.r.a1c, par->df_regs + 0xD0); ++ writel((u32) regs->vp.r.a1t, par->df_regs + 0xD8); ++ writel((u32) regs->vp.r.a2x, par->df_regs + 0xE0); ++ writel((u32) regs->vp.r.a2y, par->df_regs + 0xE8); ++ writel((u32) regs->vp.r.a2c, par->df_regs + 0xF0); ++ writel((u32) regs->vp.r.a2t, par->df_regs + 0xF8); ++ writel((u32) regs->vp.r.a3x, par->df_regs + 0x100); ++ writel((u32) regs->vp.r.a3y, par->df_regs + 0x108); ++ writel((u32) regs->vp.r.a3c, par->df_regs + 0x110); ++ writel((u32) regs->vp.r.a3t, par->df_regs + 0x118); ++ writel((u32) regs->vp.r.vrr, par->df_regs + 0x120); ++ ++ writel((u32) regs->vp.r.vye, par->df_regs + 0x138); ++ writel((u32) regs->vp.r.a1ye, par->df_regs + 0x140); ++ writel((u32) regs->vp.r.a2ye, par->df_regs + 0x148); ++ writel((u32) regs->vp.r.a3ye, par->df_regs + 0x150); ++ ++ /* == FP == */ ++ ++ writel((u32) regs->fp.r.pt1, par->df_regs + 0x400); ++ writel((u32) regs->fp.r.pt2, par->df_regs + 0x408); ++ writel((u32) regs->fp.r.dfc, par->df_regs + 0x418); ++ writel(regs->fp.r.dca, par->df_regs + 0x448); ++ writel(regs->fp.r.dmd, par->df_regs + 0x450); ++ writel(regs->fp.r.crc, par->df_regs + 0x458); ++ ++ /* Final enables */ ++ ++ val = readl(par->df_regs + 0x410); ++ ++ /* Control the panel */ ++ if (regs->fp.r.pm & (1 << 24)) { ++ ++ if (!(val & 0x09)) ++ writel(regs->fp.r.pm, par->df_regs + 0x410); ++ } ++ else { ++ if (!(val & 0x05)) ++ writel(regs->fp.r.pm, par->df_regs + 0x410); ++ } ++ ++ /* Turn everything on */ ++ ++ writel(regs->dc.r.gcfg, par->dc_regs + 0x04); ++ writel((u32) regs->vp.r.vcfg, par->df_regs + 0x00); ++ writel((u32) regs->vp.r.dcfg, par->df_regs + 0x08); ++ writel(regs->dc.r.dcfg, par->dc_regs + 0x08); ++} ++ ++static int lx_power_on = 1; ++ ++int lx_shutdown(struct fb_info *info) ++{ ++ struct lxfb_par *par = info->par; ++ ++ if (lx_power_on == 0) ++ return 0; ++ ++ writel(DC_UNLOCK_CODE, par->dc_regs + DC_UNLOCK); ++ lx_save_regs(info, &saved_regs); ++ lx_graphics_disable(info); ++ ++ lx_power_on = 0; ++ return 0; ++} ++ ++int lx_powerup(struct fb_info *info) ++{ ++ struct lxfb_par *par = info->par; ++ ++ if (lx_power_on == 1) ++ return 0; ++ ++ lx_restore_regs(info, &saved_regs); ++ writel(0, par->dc_regs + DC_UNLOCK); ++ ++ lx_power_on = 1; ++ return 0; ++} +Index: linux-2.6.23.17/drivers/video/geode/video_gx.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/video_gx.c ++++ linux-2.6.23.17/drivers/video/geode/video_gx.c +@@ -16,10 +16,14 @@ + #include <asm/io.h> + #include <asm/delay.h> + #include <asm/msr.h> ++#include <asm/olpc.h> + + #include "geodefb.h" + #include "video_gx.h" ++#include "display_gx.h" + ++/* This structure is used to store the saved registers during suspend */ ++static struct geoderegs gx_saved_regs; + + /* + * Tables of register settings for various DOTCLKs. +@@ -58,7 +62,7 @@ static const struct gx_pll_entry gx_pll_ + { 13888, POSTDIV3, 0x000007E1 }, /* 72.0000 */ + { 13426, PREMULT2, 0x00000F4A }, /* 74.4810 */ + { 13333, 0, 0x00000052 }, /* 75.0000 */ +- { 12698, 0, 0x00000056 }, /* 78.7500 */ ++ { 12698, 0, 0x00000056 }, /* 78.7500 */ + { 12500, POSTDIV3|PREMULT2, 0x00000709 }, /* 80.0000 */ + { 11135, PREMULT2, 0x00000262 }, /* 89.8000 */ + { 10582, 0, 0x000002D2 }, /* 94.5000 */ +@@ -117,8 +121,9 @@ static const struct gx_pll_entry gx_pll_ + { 4357, 0, 0x0000057D }, /* 229.5000 */ + }; + +-static void gx_set_dclk_frequency(struct fb_info *info) ++void gx_set_dclk_frequency(struct fb_info *info) + { ++ struct geodefb_par *par = info->par; + const struct gx_pll_entry *pll_table; + int pll_table_len; + int i, best_i; +@@ -173,115 +178,169 @@ static void gx_set_dclk_frequency(struct + do { + rdmsrl(MSR_GLCP_DOTPLL, dotpll); + } while (timeout-- && !(dotpll & MSR_GLCP_DOTPLL_LOCK)); ++ ++ par->curdclk = pll_table[best_i].dotpll_value; + } + +-static void +-gx_configure_tft(struct fb_info *info) ++/* Find out the current clock - we will use this information to avoid ++ re-programming it if we don't need to */ ++ ++unsigned int gx_get_dclk(struct fb_info *info) + { +- struct geodefb_par *par = info->par; +- unsigned long val; +- unsigned long fp; ++ const struct gx_pll_entry *pll_table; ++ int pll_table_len; ++ u64 dotpll; ++ int i; + +- /* Set up the DF pad select MSR */ ++ if (cpu_data->x86_mask == 1) { ++ pll_table = gx_pll_table_14MHz; ++ pll_table_len = ARRAY_SIZE(gx_pll_table_14MHz); ++ } else { ++ pll_table = gx_pll_table_48MHz; ++ pll_table_len = ARRAY_SIZE(gx_pll_table_48MHz); ++ } + +- rdmsrl(GX_VP_MSR_PAD_SELECT, val); +- val &= ~GX_VP_PAD_SELECT_MASK; +- val |= GX_VP_PAD_SELECT_TFT; +- wrmsrl(GX_VP_MSR_PAD_SELECT, val); ++ rdmsrl(MSR_GLCP_DOTPLL, dotpll); + +- /* Turn off the panel */ ++ for(i = 0; i < pll_table_len; i++) { ++ if (pll_table[i].dotpll_value == (u32) (dotpll >> 32)) ++ break; ++ } ++ ++ return (i == pll_table_len) ? 0 : pll_table[i].pixclock; ++} + +- fp = readl(par->vid_regs + GX_FP_PM); +- fp &= ~GX_FP_PM_P; +- writel(fp, par->vid_regs + GX_FP_PM); + +- /* Set timing 1 */ ++#define CMP(val, mask, res) (((val) & (mask)) == (res)) + +- fp = readl(par->vid_regs + GX_FP_PT1); +- fp &= GX_FP_PT1_VSIZE_MASK; +- fp |= info->var.yres << GX_FP_PT1_VSIZE_SHIFT; +- writel(fp, par->vid_regs + GX_FP_PT1); ++static void ++gx_configure_tft(struct fb_info *info) { + +- /* Timing 2 */ +- /* Set bits that are always on for TFT */ ++ struct geodefb_par *par = info->par; ++ u32 val, fp = 0, fp1, fp2, sync = 0; + +- fp = 0x0F100000; ++ /* Set up the DF pad select MSR */ + +- /* Add sync polarity */ ++ rdmsrl(GX_VP_MSR_PAD_SELECT, val); ++ ++ if ((val & GX_VP_PAD_SELECT_MASK) != GX_VP_PAD_SELECT_TFT) { ++ val &= ~GX_VP_PAD_SELECT_MASK; ++ val |= GX_VP_PAD_SELECT_TFT; ++ wrmsrl(GX_VP_MSR_PAD_SELECT, val); ++ } + + if (!(info->var.sync & FB_SYNC_VERT_HIGH_ACT)) +- fp |= GX_FP_PT2_VSP; ++ sync |= GX_FP_PT2_VSP; + + if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT)) +- fp |= GX_FP_PT2_HSP; ++ sync |= GX_FP_PT2_HSP; + +- writel(fp, par->vid_regs + GX_FP_PT2); ++ /* We only need to turn off the panel if something changed */ + +- /* Set the dither control */ +- writel(0x70, par->vid_regs + GX_FP_DFC); ++ fp1 = readl(par->vid_regs + GX_FP_PT1); ++ fp2 = readl(par->vid_regs + GX_FP_PT2); ++ ++ if (!CMP(fp1, GX_FP_PT1_VSIZE_MASK, info->var.yres << GX_FP_PT1_VSIZE_SHIFT) || ++ (fp2 != (0x0F100000 | sync))) { ++ ++ /* Turn off the panel */ ++ ++#ifdef NOTUSED ++ /* Do we really need to turn off the panel? */ ++ /* Possibly - we have a glitch somewhere */ + +- /* Enable the FP data and power (in case the BIOS didn't) */ ++ fp = readl(par->vid_regs + GX_FP_PM); ++ fp &= ~GX_FP_PM_P; ++ writel(fp, par->vid_regs + GX_FP_PM); ++#endif + +- fp = readl(par->vid_regs + GX_DCFG); +- fp |= GX_DCFG_FP_PWR_EN | GX_DCFG_FP_DATA_EN; +- writel(fp, par->vid_regs + GX_DCFG); ++ /* Timing 1 */ ++ fp1 &= GX_FP_PT1_VSIZE_MASK; ++ fp1 |= info->var.yres << GX_FP_PT1_VSIZE_SHIFT; ++ writel(fp, par->vid_regs + GX_FP_PT1); + +- /* Unblank the panel */ ++ /* Timing 2 */ ++ writel(0x0F100000 | sync, par->vid_regs + GX_FP_PT2); ++ } ++ ++ /* Set the dither control */ ++ if (readl(par->vid_regs + GX_FP_DFC) != 0x70) { ++ writel(0x70, par->vid_regs + GX_FP_DFC); ++ } ++ ++ /* Turn on the panel */ + + fp = readl(par->vid_regs + GX_FP_PM); +- fp |= GX_FP_PM_P; +- writel(fp, par->vid_regs + GX_FP_PM); ++ ++ if (!(fp & 0x09)) ++ writel(fp | GX_FP_PM_P, par->vid_regs + GX_FP_PM); + } + ++#define DCFG_DEFAULT_VAL GX_DCFG_CRT_SYNC_SKW_DFLT | GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN | \ ++GX_DCFG_CRT_EN | GX_DCFG_DAC_BL_EN ++ + static void gx_configure_display(struct fb_info *info) + { + struct geodefb_par *par = info->par; +- u32 dcfg, misc; ++ u32 dcfg, misc, sync = 0; + + /* Set up the MISC register */ +- + misc = readl(par->vid_regs + GX_MISC); + +- /* Power up the DAC */ +- misc &= ~(GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN); ++ /* We leave gamma enabled if it was already enabled. ++ Although the hardware enables it without setting ++ up the gamma table, the BIOS or bootloader ought ++ to have either disabled it or loaded a table by now */ + +- /* Disable gamma correction */ +- misc |= GX_MISC_GAM_EN; + +- writel(misc, par->vid_regs + GX_MISC); + +- /* Write the display configuration */ +- dcfg = readl(par->vid_regs + GX_DCFG); ++ if (par->enable_crt) { ++ /* Power up the CRT DACs */ ++ if (misc & ( GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN)) { ++ misc &= ~(GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN); ++ writel(misc, par->vid_regs + GX_MISC); ++ } + +- /* Disable hsync and vsync */ +- dcfg &= ~(GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN); +- writel(dcfg, par->vid_regs + GX_DCFG); ++ if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT)) ++ sync |= GX_DCFG_CRT_HSYNC_POL; + +- /* Clear bits from existing mode. */ +- dcfg &= ~(GX_DCFG_CRT_SYNC_SKW_MASK +- | GX_DCFG_CRT_HSYNC_POL | GX_DCFG_CRT_VSYNC_POL +- | GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN); ++ if (!(info->var.sync & FB_SYNC_VERT_HIGH_ACT)) ++ sync |= GX_DCFG_CRT_VSYNC_POL; ++ } ++ else { ++ /* Turn off the CRT DACs in FP mode - we don't need them */ ++ if ((misc & (GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN))) { ++ misc |= (GX_MISC_A_PWRDN | GX_MISC_DAC_PWRDN); ++ writel(misc, par->vid_regs + GX_MISC); ++ } ++ } + +- /* Set default sync skew. */ +- dcfg |= GX_DCFG_CRT_SYNC_SKW_DFLT; ++ /* Write the display configuration */ ++ dcfg = readl(par->vid_regs + GX_DCFG); + +- /* Enable hsync and vsync. */ +- dcfg |= GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN; ++ if (!CMP(dcfg, DCFG_DEFAULT_VAL | GX_DCFG_CRT_HSYNC_POL | GX_DCFG_CRT_VSYNC_POL, ++ DCFG_DEFAULT_VAL | sync)) { + +- /* Sync polarities. */ +- if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) +- dcfg |= GX_DCFG_CRT_HSYNC_POL; +- if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) +- dcfg |= GX_DCFG_CRT_VSYNC_POL; ++ /* Disable hsync and vsync */ ++ dcfg &= ~(GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN); ++ writel(dcfg, par->vid_regs + GX_DCFG); + +- /* Enable the display logic */ +- /* Set up the DACS to blank normally */ ++ /* Clear bits from existing mode. */ ++ dcfg &= ~(GX_DCFG_CRT_SYNC_SKW_MASK ++ | GX_DCFG_CRT_HSYNC_POL | GX_DCFG_CRT_VSYNC_POL ++ | GX_DCFG_VSYNC_EN | GX_DCFG_HSYNC_EN); + +- dcfg |= GX_DCFG_CRT_EN | GX_DCFG_DAC_BL_EN; ++ /* Set default sync skew. */ ++ dcfg |= GX_DCFG_CRT_SYNC_SKW_DFLT; + +- /* Enable the external DAC VREF? */ ++ /* Enable hsync and vsync. */ ++ dcfg |= GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN; + +- writel(dcfg, par->vid_regs + GX_DCFG); ++ /* Enable the display logic */ ++ dcfg |= GX_DCFG_CRT_EN | GX_DCFG_DAC_BL_EN; ++ ++ writel(dcfg, par->vid_regs + GX_DCFG); ++ } + + /* Set up the flat panel (if it is enabled) */ + +@@ -289,6 +348,100 @@ static void gx_configure_display(struct + gx_configure_tft(info); + } + ++int gxfb_powerdown(struct fb_info *info) ++{ ++ struct geodefb_par *par = info->par; ++ ++ /* We're already suspended */ ++ ++ if (par->state != FB_POWER_STATE_ON) ++ return 0; ++ ++ /* Save the registers */ ++ gx_save_regs(info, &gx_saved_regs); ++ ++ /* Shut down the engine */ ++ ++ writel(gx_saved_regs.vp.r.vcfg & ~0x01, par->vid_regs + GX_VCFG); ++ writel(gx_saved_regs.vp.r.dcfg & ~0x0F, par->vid_regs + GX_DCFG); ++ ++ /* Turn off the flat panel unless we are attached to a DCON */ ++ if (!olpc_has_dcon()) ++ writel(gx_saved_regs.fp.r.pm & ~GX_FP_PM_P, par->vid_regs + GX_FP_PM); ++ ++ writel(0x4758, par->dc_regs + DC_UNLOCK); ++ ++ writel(gx_saved_regs.dc.r.gcfg & ~0x0F, ++ par->dc_regs + DC_GENERAL_CFG); ++ ++ writel(gx_saved_regs.dc.r.dcfg & ~0x19, ++ par->dc_regs + DC_DISPLAY_CFG); ++ ++ par->state = FB_POWER_STATE_SUSPEND; ++ ++ return 0; ++} ++ ++int gxfb_powerup(struct fb_info *info) ++{ ++ struct geodefb_par *par = info->par; ++ u32 val; ++ ++ if (par->state == FB_POWER_STATE_SUSPEND) { ++ ++ writel(gx_saved_regs.dc.r.dcfg, ++ par->dc_regs + DC_DISPLAY_CFG); ++ ++ writel(gx_saved_regs.vp.r.vcfg, par->vid_regs + GX_VCFG); ++ writel(gx_saved_regs.vp.r.dcfg, par->vid_regs + GX_DCFG); ++ ++ val = readl(par->vid_regs + GX_FP_PM); ++ ++ /* power up the panel if it needs it; we don't always power it down */ ++ if (!(val & 0x09)) { ++ writel(gx_saved_regs.fp.r.pm, par->vid_regs + GX_FP_PM); ++ mdelay(64); ++ } ++ } ++ ++ /* If the panel is currently on its way up, then wait up to 100ms ++ for it */ ++ ++ if (readl(par->vid_regs + GX_FP_PM) & 0x08) { ++ int i; ++ ++ for(i = 0; i < 10; i++) { ++ if (readl(par->vid_regs + GX_FP_PM) & 0x01) ++ break; ++ ++ mdelay(10); ++ } ++ ++ if (i == 10) ++ printk(KERN_ERR "gxfb: Panel power up timed out\n"); ++ } ++ ++ if (par->state == FB_POWER_STATE_ON) ++ return 0; ++ ++ switch(par->state) { ++ case FB_POWER_STATE_OFF: ++ gx_restore_regs(info, &gx_saved_regs); ++ break; ++ ++ case FB_POWER_STATE_SUSPEND: ++ /* Do this because it will turn on the FIFO which will ++ start the line count */ ++ writel(gx_saved_regs.dc.r.gcfg, ++ par->dc_regs + DC_GENERAL_CFG); ++ writel(0x0, par->dc_regs + DC_UNLOCK); ++ break; ++ } ++ ++ par->state = FB_POWER_STATE_ON; ++ return 0; ++} ++ + static int gx_blank_display(struct fb_info *info, int blank_mode) + { + struct geodefb_par *par = info->par; +@@ -315,6 +468,7 @@ static int gx_blank_display(struct fb_in + default: + return -EINVAL; + } ++ + dcfg = readl(par->vid_regs + GX_DCFG); + dcfg &= ~(GX_DCFG_DAC_BL_EN + | GX_DCFG_HSYNC_EN | GX_DCFG_VSYNC_EN); +@@ -326,7 +480,7 @@ static int gx_blank_display(struct fb_in + dcfg |= GX_DCFG_VSYNC_EN; + writel(dcfg, par->vid_regs + GX_DCFG); + +- /* Power on/off flat panel. */ ++ /* Power on/off flat panel */ + + if (par->enable_crt == 0) { + fp_pm = readl(par->vid_regs + GX_FP_PM); +@@ -340,8 +494,37 @@ static int gx_blank_display(struct fb_in + return 0; + } + ++extern struct fb_info *gxfb_info; ++ ++/* This function controls the flatpanel power sequencing - this is used ++ by the OLPC power management engine to enable the FP sequencing much ++ earlier in the resume process ++*/ ++ ++void gxfb_flatpanel_control(int state) ++{ ++ struct geodefb_par *par = gxfb_info->par; ++ u32 val, fp = readl(par->vid_regs + GX_FP_PM); ++ val = fp; ++ ++ /* Turn on the panel if it isn't aleady */ ++ ++ if (state) { ++ if (!(val & 0x01)) ++ val |= GX_FP_PM_P; ++ } ++ else { ++ if (!(val & 0x02)) ++ val &= ~GX_FP_PM_P; ++ } ++ ++ if (val != fp) ++ writel(val, par->vid_regs + GX_FP_PM); ++} ++ + struct geode_vid_ops gx_vid_ops = { + .set_dclk = gx_set_dclk_frequency, ++ .get_dclk = gx_get_dclk, + .configure_display = gx_configure_display, + .blank_display = gx_blank_display, + }; +Index: linux-2.6.23.17/drivers/video/geode/video_gx.h +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/geode/video_gx.h ++++ linux-2.6.23.17/drivers/video/geode/video_gx.h +@@ -11,6 +11,8 @@ + #ifndef __VIDEO_GX_H__ + #define __VIDEO_GX_H__ + ++#include "geode_regs.h" ++ + extern struct geode_vid_ops gx_vid_ops; + + /* GX Flatpanel control MSR */ +@@ -20,6 +22,8 @@ extern struct geode_vid_ops gx_vid_ops; + + /* Geode GX video processor registers */ + ++#define GX_VCFG 0x0000 ++ + #define GX_DCFG 0x0008 + # define GX_DCFG_CRT_EN 0x00000001 + # define GX_DCFG_HSYNC_EN 0x00000002 +@@ -42,6 +46,14 @@ extern struct geode_vid_ops gx_vid_ops; + #define GX_MISC_DAC_PWRDN 0x00000400 + #define GX_MISC_A_PWRDN 0x00000800 + ++/* Gamma correction RAM - address and data registers */ ++ ++#define GX_GAR 0x038 ++#define GX_GDR 0x040 ++ ++#define GXFB_GAMMA_DWORDS 256 /* number of dwords in the gamma ram */ ++#define GXFB_GAMMA_SIZE (GXFB_GAMMA_DWORDS * sizeof(unsigned int)) ++ + /* Geode GX flat panel display control registers */ + + #define GX_FP_PT1 0x0400 +@@ -69,4 +81,13 @@ extern struct geode_vid_ops gx_vid_ops; + # define MSR_GLCP_DOTPLL_BYPASS (0x0000000000008000ull) + # define MSR_GLCP_DOTPLL_LOCK (0x0000000002000000ull) + ++int gxfb_powerdown(struct fb_info *info); ++int gxfb_powerup(struct fb_info *info); ++ ++void gx_set_dclk_frequency(struct fb_info *info); ++unsigned int gx_get_dclk(struct fb_info *info); ++ ++void gx_save_regs(struct fb_info *info, struct geoderegs *regs); ++void gx_restore_regs(struct fb_info *info, struct geoderegs *regs); ++ + #endif /* !__VIDEO_GX_H__ */ +Index: linux-2.6.23.17/drivers/video/modedb.c +=================================================================== +--- linux-2.6.23.17.orig/drivers/video/modedb.c ++++ linux-2.6.23.17/drivers/video/modedb.c +@@ -33,6 +33,8 @@ const char *global_mode_option; + * Standard video mode definitions (taken from XFree86) + */ + ++#define DEFAULT_MODEDB_INDEX 0 ++ + static const struct fb_videomode modedb[] = { + { + /* 640x400 @ 70 Hz, 31.5 kHz hsync */ +@@ -504,7 +506,8 @@ int fb_find_mode(struct fb_var_screeninf + } + + if (!default_mode) +- default_mode = &db[0]; ++ default_mode = (db == modedb) ? ++ &modedb[DEFAULT_MODEDB_INDEX] : &db[0]; + + if (!default_bpp) + default_bpp = 8; +Index: linux-2.6.23.17/fs/Kconfig +=================================================================== +--- linux-2.6.23.17.orig/fs/Kconfig ++++ linux-2.6.23.17/fs/Kconfig +@@ -1003,6 +1003,23 @@ config HUGETLBFS + config HUGETLB_PAGE + def_bool HUGETLBFS + ++config PROMFS_FS ++ tristate "PromFS IEEE 1275 file system support" ++ depends on SPARC || PPC || OLPC ++ help ++ PromFS is a file system interface to various IEEE-1275 compatible ++ firmwares. If you have such a firmware (Sparc64, PowerPC, and ++ some other architectures and embedded systems have such firmwares, ++ with names like "OpenBoot (tm)" and "OpenFirmware"), say Y here ++ to be able to access the firmware's device-tree from Linux. ++ ++ The firmware device-tree is available as a virtual file system, ++ can be mounted under /prom with the command "mount -t promfs ++ none /prom". ++ ++ To compile PromFS support as a module, choose M here; the module ++ will be called promfs. If unsure, choose M. ++ + config RAMFS + bool + default y +@@ -1229,6 +1246,14 @@ config JFFS2_FS_WRITEBUFFER + - NOR flash with transparent ECC + - DataFlash + ++config JFFS2_FS_WBUF_VERIFY ++ bool "Verify JFFS2 write-buffer reads" ++ depends on JFFS2_FS_WRITEBUFFER ++ default n ++ help ++ This causes JFFS2 to read back every page written through the ++ write-buffer, and check for errors. ++ + config JFFS2_SUMMARY + bool "JFFS2 summary support (EXPERIMENTAL)" + depends on JFFS2_FS && EXPERIMENTAL +@@ -1299,52 +1324,52 @@ config JFFS2_ZLIB + select ZLIB_DEFLATE + depends on JFFS2_FS + default y +- help +- Zlib is designed to be a free, general-purpose, legally unencumbered, +- lossless data-compression library for use on virtually any computer +- hardware and operating system. See <http://www.gzip.org/zlib/> for +- further information. ++ help ++ Zlib is designed to be a free, general-purpose, legally unencumbered, ++ lossless data-compression library for use on virtually any computer ++ hardware and operating system. See <http://www.gzip.org/zlib/> for ++ further information. + +- Say 'Y' if unsure. ++ Say 'Y' if unsure. + + config JFFS2_RTIME + bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS + depends on JFFS2_FS + default y +- help +- Rtime does manage to recompress already-compressed data. Say 'Y' if unsure. ++ help ++ Rtime does manage to recompress already-compressed data. Say 'Y' if unsure. + + config JFFS2_RUBIN + bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS + depends on JFFS2_FS + default n +- help +- RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure. ++ help ++ RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure. + + choice +- prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS +- default JFFS2_CMODE_PRIORITY +- depends on JFFS2_FS +- help +- You can set here the default compression mode of JFFS2 from +- the available compression modes. Don't touch if unsure. ++ prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS ++ default JFFS2_CMODE_PRIORITY ++ depends on JFFS2_FS ++ help ++ You can set here the default compression mode of JFFS2 from ++ the available compression modes. Don't touch if unsure. + + config JFFS2_CMODE_NONE +- bool "no compression" +- help +- Uses no compression. ++ bool "no compression" ++ help ++ Uses no compression. + + config JFFS2_CMODE_PRIORITY +- bool "priority" +- help +- Tries the compressors in a predefined order and chooses the first +- successful one. ++ bool "priority" ++ help ++ Tries the compressors in a predefined order and chooses the first ++ successful one. + + config JFFS2_CMODE_SIZE +- bool "size (EXPERIMENTAL)" +- help +- Tries all compressors and chooses the one which has the smallest +- result. ++ bool "size (EXPERIMENTAL)" ++ help ++ Tries all compressors and chooses the one which has the smallest ++ result. + + endchoice + +Index: linux-2.6.23.17/fs/Makefile +=================================================================== +--- linux-2.6.23.17.orig/fs/Makefile ++++ linux-2.6.23.17/fs/Makefile +@@ -110,6 +110,7 @@ obj-$(CONFIG_ADFS_FS) += adfs/ + obj-$(CONFIG_FUSE_FS) += fuse/ + obj-$(CONFIG_UDF_FS) += udf/ + obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/ ++obj-$(CONFIG_PROMFS_FS) += promfs/ + obj-$(CONFIG_JFS_FS) += jfs/ + obj-$(CONFIG_XFS_FS) += xfs/ + obj-$(CONFIG_9P_FS) += 9p/ +Index: linux-2.6.23.17/fs/jffs2/background.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/background.c ++++ linux-2.6.23.17/fs/jffs2/background.c +@@ -23,8 +23,8 @@ static int jffs2_garbage_collect_thread( + void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c) + { + spin_lock(&c->erase_completion_lock); +- if (c->gc_task && jffs2_thread_should_wake(c)) +- send_sig(SIGHUP, c->gc_task, 1); ++ if (c->gc_task && jffs2_thread_should_wake(c)) ++ send_sig(SIGHUP, c->gc_task, 1); + spin_unlock(&c->erase_completion_lock); + } + +Index: linux-2.6.23.17/fs/jffs2/compr.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/compr.c ++++ linux-2.6.23.17/fs/jffs2/compr.c +@@ -5,7 +5,7 @@ + * Created by Arjan van de Ven <arjanv@redhat.com> + * + * Copyright © 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>, +- * University of Szeged, Hungary ++ * University of Szeged, Hungary + * + * For licensing information, see the file 'LICENCE' in this directory. + * +@@ -43,121 +43,122 @@ static uint32_t none_stat_compr_blocks=0 + * *datalen accordingly to show the amount of data which were compressed. + */ + uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f, +- unsigned char *data_in, unsigned char **cpage_out, +- uint32_t *datalen, uint32_t *cdatalen) ++ unsigned char *data_in, unsigned char **cpage_out, ++ uint32_t *datalen, uint32_t *cdatalen) + { + int ret = JFFS2_COMPR_NONE; +- int compr_ret; +- struct jffs2_compressor *this, *best=NULL; +- unsigned char *output_buf = NULL, *tmp_buf; +- uint32_t orig_slen, orig_dlen; +- uint32_t best_slen=0, best_dlen=0; +- +- switch (jffs2_compression_mode) { +- case JFFS2_COMPR_MODE_NONE: +- break; +- case JFFS2_COMPR_MODE_PRIORITY: +- output_buf = kmalloc(*cdatalen,GFP_KERNEL); +- if (!output_buf) { +- printk(KERN_WARNING "JFFS2: No memory for compressor allocation. Compression failed.\n"); +- goto out; +- } +- orig_slen = *datalen; +- orig_dlen = *cdatalen; +- spin_lock(&jffs2_compressor_list_lock); +- list_for_each_entry(this, &jffs2_compressor_list, list) { +- /* Skip decompress-only backwards-compatibility and disabled modules */ +- if ((!this->compress)||(this->disabled)) +- continue; +- +- this->usecount++; +- spin_unlock(&jffs2_compressor_list_lock); +- *datalen = orig_slen; +- *cdatalen = orig_dlen; +- compr_ret = this->compress(data_in, output_buf, datalen, cdatalen, NULL); +- spin_lock(&jffs2_compressor_list_lock); +- this->usecount--; +- if (!compr_ret) { +- ret = this->compr; +- this->stat_compr_blocks++; +- this->stat_compr_orig_size += *datalen; +- this->stat_compr_new_size += *cdatalen; +- break; +- } +- } +- spin_unlock(&jffs2_compressor_list_lock); +- if (ret == JFFS2_COMPR_NONE) kfree(output_buf); +- break; +- case JFFS2_COMPR_MODE_SIZE: +- orig_slen = *datalen; +- orig_dlen = *cdatalen; +- spin_lock(&jffs2_compressor_list_lock); +- list_for_each_entry(this, &jffs2_compressor_list, list) { +- /* Skip decompress-only backwards-compatibility and disabled modules */ +- if ((!this->compress)||(this->disabled)) +- continue; +- /* Allocating memory for output buffer if necessary */ +- if ((this->compr_buf_size<orig_dlen)&&(this->compr_buf)) { +- spin_unlock(&jffs2_compressor_list_lock); +- kfree(this->compr_buf); +- spin_lock(&jffs2_compressor_list_lock); +- this->compr_buf_size=0; +- this->compr_buf=NULL; +- } +- if (!this->compr_buf) { +- spin_unlock(&jffs2_compressor_list_lock); +- tmp_buf = kmalloc(orig_dlen,GFP_KERNEL); +- spin_lock(&jffs2_compressor_list_lock); +- if (!tmp_buf) { +- printk(KERN_WARNING "JFFS2: No memory for compressor allocation. (%d bytes)\n",orig_dlen); +- continue; +- } +- else { +- this->compr_buf = tmp_buf; +- this->compr_buf_size = orig_dlen; +- } +- } +- this->usecount++; +- spin_unlock(&jffs2_compressor_list_lock); +- *datalen = orig_slen; +- *cdatalen = orig_dlen; +- compr_ret = this->compress(data_in, this->compr_buf, datalen, cdatalen, NULL); +- spin_lock(&jffs2_compressor_list_lock); +- this->usecount--; +- if (!compr_ret) { +- if ((!best_dlen)||(best_dlen>*cdatalen)) { +- best_dlen = *cdatalen; +- best_slen = *datalen; +- best = this; +- } +- } +- } +- if (best_dlen) { +- *cdatalen = best_dlen; +- *datalen = best_slen; +- output_buf = best->compr_buf; +- best->compr_buf = NULL; +- best->compr_buf_size = 0; +- best->stat_compr_blocks++; +- best->stat_compr_orig_size += best_slen; +- best->stat_compr_new_size += best_dlen; +- ret = best->compr; +- } +- spin_unlock(&jffs2_compressor_list_lock); +- break; +- default: +- printk(KERN_ERR "JFFS2: unknow compression mode.\n"); +- } ++ int compr_ret; ++ struct jffs2_compressor *this, *best=NULL; ++ unsigned char *output_buf = NULL, *tmp_buf; ++ uint32_t orig_slen, orig_dlen; ++ uint32_t best_slen=0, best_dlen=0; ++ ++ switch (jffs2_compression_mode) { ++ case JFFS2_COMPR_MODE_NONE: ++ break; ++ case JFFS2_COMPR_MODE_PRIORITY: ++ output_buf = kmalloc(*cdatalen,GFP_KERNEL); ++ if (!output_buf) { ++ printk(KERN_WARNING "JFFS2: No memory for compressor allocation. Compression failed.\n"); ++ goto out; ++ } ++ orig_slen = *datalen; ++ orig_dlen = *cdatalen; ++ spin_lock(&jffs2_compressor_list_lock); ++ list_for_each_entry(this, &jffs2_compressor_list, list) { ++ /* Skip decompress-only backwards-compatibility and disabled modules */ ++ if ((!this->compress)||(this->disabled)) ++ continue; ++ ++ this->usecount++; ++ spin_unlock(&jffs2_compressor_list_lock); ++ *datalen = orig_slen; ++ *cdatalen = orig_dlen; ++ compr_ret = this->compress(data_in, output_buf, datalen, cdatalen, NULL); ++ spin_lock(&jffs2_compressor_list_lock); ++ this->usecount--; ++ if (!compr_ret) { ++ ret = this->compr; ++ this->stat_compr_blocks++; ++ this->stat_compr_orig_size += *datalen; ++ this->stat_compr_new_size += *cdatalen; ++ break; ++ } ++ } ++ spin_unlock(&jffs2_compressor_list_lock); ++ if (ret == JFFS2_COMPR_NONE) ++ kfree(output_buf); ++ break; ++ case JFFS2_COMPR_MODE_SIZE: ++ orig_slen = *datalen; ++ orig_dlen = *cdatalen; ++ spin_lock(&jffs2_compressor_list_lock); ++ list_for_each_entry(this, &jffs2_compressor_list, list) { ++ /* Skip decompress-only backwards-compatibility and disabled modules */ ++ if ((!this->compress)||(this->disabled)) ++ continue; ++ /* Allocating memory for output buffer if necessary */ ++ if ((this->compr_buf_size<orig_dlen)&&(this->compr_buf)) { ++ spin_unlock(&jffs2_compressor_list_lock); ++ kfree(this->compr_buf); ++ spin_lock(&jffs2_compressor_list_lock); ++ this->compr_buf_size=0; ++ this->compr_buf=NULL; ++ } ++ if (!this->compr_buf) { ++ spin_unlock(&jffs2_compressor_list_lock); ++ tmp_buf = kmalloc(orig_dlen,GFP_KERNEL); ++ spin_lock(&jffs2_compressor_list_lock); ++ if (!tmp_buf) { ++ printk(KERN_WARNING "JFFS2: No memory for compressor allocation. (%d bytes)\n",orig_dlen); ++ continue; ++ } ++ else { ++ this->compr_buf = tmp_buf; ++ this->compr_buf_size = orig_dlen; ++ } ++ } ++ this->usecount++; ++ spin_unlock(&jffs2_compressor_list_lock); ++ *datalen = orig_slen; ++ *cdatalen = orig_dlen; ++ compr_ret = this->compress(data_in, this->compr_buf, datalen, cdatalen, NULL); ++ spin_lock(&jffs2_compressor_list_lock); ++ this->usecount--; ++ if (!compr_ret) { ++ if ((!best_dlen)||(best_dlen>*cdatalen)) { ++ best_dlen = *cdatalen; ++ best_slen = *datalen; ++ best = this; ++ } ++ } ++ } ++ if (best_dlen) { ++ *cdatalen = best_dlen; ++ *datalen = best_slen; ++ output_buf = best->compr_buf; ++ best->compr_buf = NULL; ++ best->compr_buf_size = 0; ++ best->stat_compr_blocks++; ++ best->stat_compr_orig_size += best_slen; ++ best->stat_compr_new_size += best_dlen; ++ ret = best->compr; ++ } ++ spin_unlock(&jffs2_compressor_list_lock); ++ break; ++ default: ++ printk(KERN_ERR "JFFS2: unknow compression mode.\n"); ++ } + out: +- if (ret == JFFS2_COMPR_NONE) { +- *cpage_out = data_in; +- *datalen = *cdatalen; +- none_stat_compr_blocks++; +- none_stat_compr_size += *datalen; +- } +- else { +- *cpage_out = output_buf; +- } ++ if (ret == JFFS2_COMPR_NONE) { ++ *cpage_out = data_in; ++ *datalen = *cdatalen; ++ none_stat_compr_blocks++; ++ none_stat_compr_size += *datalen; ++ } ++ else { ++ *cpage_out = output_buf; ++ } + return ret; + } + +@@ -165,8 +166,8 @@ int jffs2_decompress(struct jffs2_sb_inf + uint16_t comprtype, unsigned char *cdata_in, + unsigned char *data_out, uint32_t cdatalen, uint32_t datalen) + { +- struct jffs2_compressor *this; +- int ret; ++ struct jffs2_compressor *this; ++ int ret; + + /* Older code had a bug where it would write non-zero 'usercompr' + fields. Deal with it. */ +@@ -177,32 +178,32 @@ int jffs2_decompress(struct jffs2_sb_inf + case JFFS2_COMPR_NONE: + /* This should be special-cased elsewhere, but we might as well deal with it */ + memcpy(data_out, cdata_in, datalen); +- none_stat_decompr_blocks++; ++ none_stat_decompr_blocks++; + break; + case JFFS2_COMPR_ZERO: + memset(data_out, 0, datalen); + break; + default: +- spin_lock(&jffs2_compressor_list_lock); +- list_for_each_entry(this, &jffs2_compressor_list, list) { +- if (comprtype == this->compr) { +- this->usecount++; +- spin_unlock(&jffs2_compressor_list_lock); +- ret = this->decompress(cdata_in, data_out, cdatalen, datalen, NULL); +- spin_lock(&jffs2_compressor_list_lock); +- if (ret) { +- printk(KERN_WARNING "Decompressor \"%s\" returned %d\n", this->name, ret); +- } +- else { +- this->stat_decompr_blocks++; +- } +- this->usecount--; +- spin_unlock(&jffs2_compressor_list_lock); +- return ret; +- } +- } ++ spin_lock(&jffs2_compressor_list_lock); ++ list_for_each_entry(this, &jffs2_compressor_list, list) { ++ if (comprtype == this->compr) { ++ this->usecount++; ++ spin_unlock(&jffs2_compressor_list_lock); ++ ret = this->decompress(cdata_in, data_out, cdatalen, datalen, NULL); ++ spin_lock(&jffs2_compressor_list_lock); ++ if (ret) { ++ printk(KERN_WARNING "Decompressor \"%s\" returned %d\n", this->name, ret); ++ } ++ else { ++ this->stat_decompr_blocks++; ++ } ++ this->usecount--; ++ spin_unlock(&jffs2_compressor_list_lock); ++ return ret; ++ } ++ } + printk(KERN_WARNING "JFFS2 compression type 0x%02x not available.\n", comprtype); +- spin_unlock(&jffs2_compressor_list_lock); ++ spin_unlock(&jffs2_compressor_list_lock); + return -EIO; + } + return 0; +@@ -210,108 +211,108 @@ int jffs2_decompress(struct jffs2_sb_inf + + int jffs2_register_compressor(struct jffs2_compressor *comp) + { +- struct jffs2_compressor *this; ++ struct jffs2_compressor *this; + +- if (!comp->name) { +- printk(KERN_WARNING "NULL compressor name at registering JFFS2 compressor. Failed.\n"); +- return -1; +- } +- comp->compr_buf_size=0; +- comp->compr_buf=NULL; +- comp->usecount=0; +- comp->stat_compr_orig_size=0; +- comp->stat_compr_new_size=0; +- comp->stat_compr_blocks=0; +- comp->stat_decompr_blocks=0; +- D1(printk(KERN_DEBUG "Registering JFFS2 compressor \"%s\"\n", comp->name)); +- +- spin_lock(&jffs2_compressor_list_lock); +- +- list_for_each_entry(this, &jffs2_compressor_list, list) { +- if (this->priority < comp->priority) { +- list_add(&comp->list, this->list.prev); +- goto out; +- } +- } +- list_add_tail(&comp->list, &jffs2_compressor_list); ++ if (!comp->name) { ++ printk(KERN_WARNING "NULL compressor name at registering JFFS2 compressor. Failed.\n"); ++ return -1; ++ } ++ comp->compr_buf_size=0; ++ comp->compr_buf=NULL; ++ comp->usecount=0; ++ comp->stat_compr_orig_size=0; ++ comp->stat_compr_new_size=0; ++ comp->stat_compr_blocks=0; ++ comp->stat_decompr_blocks=0; ++ D1(printk(KERN_DEBUG "Registering JFFS2 compressor \"%s\"\n", comp->name)); ++ ++ spin_lock(&jffs2_compressor_list_lock); ++ ++ list_for_each_entry(this, &jffs2_compressor_list, list) { ++ if (this->priority < comp->priority) { ++ list_add(&comp->list, this->list.prev); ++ goto out; ++ } ++ } ++ list_add_tail(&comp->list, &jffs2_compressor_list); + out: +- D2(list_for_each_entry(this, &jffs2_compressor_list, list) { +- printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority); +- }) ++ D2(list_for_each_entry(this, &jffs2_compressor_list, list) { ++ printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority); ++ }) + +- spin_unlock(&jffs2_compressor_list_lock); ++ spin_unlock(&jffs2_compressor_list_lock); + +- return 0; ++ return 0; + } + + int jffs2_unregister_compressor(struct jffs2_compressor *comp) + { +- D2(struct jffs2_compressor *this;) ++ D2(struct jffs2_compressor *this;) ++ ++ D1(printk(KERN_DEBUG "Unregistering JFFS2 compressor \"%s\"\n", comp->name)); + +- D1(printk(KERN_DEBUG "Unregistering JFFS2 compressor \"%s\"\n", comp->name)); ++ spin_lock(&jffs2_compressor_list_lock); + +- spin_lock(&jffs2_compressor_list_lock); ++ if (comp->usecount) { ++ spin_unlock(&jffs2_compressor_list_lock); ++ printk(KERN_WARNING "JFFS2: Compressor modul is in use. Unregister failed.\n"); ++ return -1; ++ } ++ list_del(&comp->list); + +- if (comp->usecount) { +- spin_unlock(&jffs2_compressor_list_lock); +- printk(KERN_WARNING "JFFS2: Compressor modul is in use. Unregister failed.\n"); +- return -1; +- } +- list_del(&comp->list); +- +- D2(list_for_each_entry(this, &jffs2_compressor_list, list) { +- printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority); +- }) +- spin_unlock(&jffs2_compressor_list_lock); +- return 0; ++ D2(list_for_each_entry(this, &jffs2_compressor_list, list) { ++ printk(KERN_DEBUG "Compressor \"%s\", prio %d\n", this->name, this->priority); ++ }) ++ spin_unlock(&jffs2_compressor_list_lock); ++ return 0; + } + + void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig) + { +- if (orig != comprbuf) +- kfree(comprbuf); ++ if (orig != comprbuf) ++ kfree(comprbuf); + } + + int __init jffs2_compressors_init(void) + { + /* Registering compressors */ + #ifdef CONFIG_JFFS2_ZLIB +- jffs2_zlib_init(); ++ jffs2_zlib_init(); + #endif + #ifdef CONFIG_JFFS2_RTIME +- jffs2_rtime_init(); ++ jffs2_rtime_init(); + #endif + #ifdef CONFIG_JFFS2_RUBIN +- jffs2_rubinmips_init(); +- jffs2_dynrubin_init(); ++ jffs2_rubinmips_init(); ++ jffs2_dynrubin_init(); + #endif + /* Setting default compression mode */ + #ifdef CONFIG_JFFS2_CMODE_NONE +- jffs2_compression_mode = JFFS2_COMPR_MODE_NONE; +- D1(printk(KERN_INFO "JFFS2: default compression mode: none\n");) ++ jffs2_compression_mode = JFFS2_COMPR_MODE_NONE; ++ D1(printk(KERN_INFO "JFFS2: default compression mode: none\n");) + #else + #ifdef CONFIG_JFFS2_CMODE_SIZE +- jffs2_compression_mode = JFFS2_COMPR_MODE_SIZE; +- D1(printk(KERN_INFO "JFFS2: default compression mode: size\n");) ++ jffs2_compression_mode = JFFS2_COMPR_MODE_SIZE; ++ D1(printk(KERN_INFO "JFFS2: default compression mode: size\n");) + #else +- D1(printk(KERN_INFO "JFFS2: default compression mode: priority\n");) ++ D1(printk(KERN_INFO "JFFS2: default compression mode: priority\n");) + #endif + #endif +- return 0; ++ return 0; + } + + int jffs2_compressors_exit(void) + { + /* Unregistering compressors */ + #ifdef CONFIG_JFFS2_RUBIN +- jffs2_dynrubin_exit(); +- jffs2_rubinmips_exit(); ++ jffs2_dynrubin_exit(); ++ jffs2_rubinmips_exit(); + #endif + #ifdef CONFIG_JFFS2_RTIME +- jffs2_rtime_exit(); ++ jffs2_rtime_exit(); + #endif + #ifdef CONFIG_JFFS2_ZLIB +- jffs2_zlib_exit(); ++ jffs2_zlib_exit(); + #endif +- return 0; ++ return 0; + } +Index: linux-2.6.23.17/fs/jffs2/compr.h +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/compr.h ++++ linux-2.6.23.17/fs/jffs2/compr.h +@@ -2,7 +2,7 @@ + * JFFS2 -- Journalling Flash File System, Version 2. + * + * Copyright © 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>, +- * University of Szeged, Hungary ++ * University of Szeged, Hungary + * + * For licensing information, see the file 'LICENCE' in this directory. + * +@@ -32,29 +32,29 @@ + #define JFFS2_ZLIB_PRIORITY 60 + + #define JFFS2_RUBINMIPS_DISABLED /* RUBINs will be used only */ +-#define JFFS2_DYNRUBIN_DISABLED /* for decompression */ ++#define JFFS2_DYNRUBIN_DISABLED /* for decompression */ + + #define JFFS2_COMPR_MODE_NONE 0 + #define JFFS2_COMPR_MODE_PRIORITY 1 + #define JFFS2_COMPR_MODE_SIZE 2 + + struct jffs2_compressor { +- struct list_head list; +- int priority; /* used by prirority comr. mode */ +- char *name; +- char compr; /* JFFS2_COMPR_XXX */ +- int (*compress)(unsigned char *data_in, unsigned char *cpage_out, +- uint32_t *srclen, uint32_t *destlen, void *model); +- int (*decompress)(unsigned char *cdata_in, unsigned char *data_out, +- uint32_t cdatalen, uint32_t datalen, void *model); +- int usecount; +- int disabled; /* if seted the compressor won't compress */ +- unsigned char *compr_buf; /* used by size compr. mode */ +- uint32_t compr_buf_size; /* used by size compr. mode */ +- uint32_t stat_compr_orig_size; +- uint32_t stat_compr_new_size; +- uint32_t stat_compr_blocks; +- uint32_t stat_decompr_blocks; ++ struct list_head list; ++ int priority; /* used by prirority comr. mode */ ++ char *name; ++ char compr; /* JFFS2_COMPR_XXX */ ++ int (*compress)(unsigned char *data_in, unsigned char *cpage_out, ++ uint32_t *srclen, uint32_t *destlen, void *model); ++ int (*decompress)(unsigned char *cdata_in, unsigned char *data_out, ++ uint32_t cdatalen, uint32_t datalen, void *model); ++ int usecount; ++ int disabled; /* if set the compressor won't compress */ ++ unsigned char *compr_buf; /* used by size compr. mode */ ++ uint32_t compr_buf_size; /* used by size compr. mode */ ++ uint32_t stat_compr_orig_size; ++ uint32_t stat_compr_new_size; ++ uint32_t stat_compr_blocks; ++ uint32_t stat_decompr_blocks; + }; + + int jffs2_register_compressor(struct jffs2_compressor *comp); +@@ -64,12 +64,12 @@ int jffs2_compressors_init(void); + int jffs2_compressors_exit(void); + + uint16_t jffs2_compress(struct jffs2_sb_info *c, struct jffs2_inode_info *f, +- unsigned char *data_in, unsigned char **cpage_out, +- uint32_t *datalen, uint32_t *cdatalen); ++ unsigned char *data_in, unsigned char **cpage_out, ++ uint32_t *datalen, uint32_t *cdatalen); + + int jffs2_decompress(struct jffs2_sb_info *c, struct jffs2_inode_info *f, +- uint16_t comprtype, unsigned char *cdata_in, +- unsigned char *data_out, uint32_t cdatalen, uint32_t datalen); ++ uint16_t comprtype, unsigned char *cdata_in, ++ unsigned char *data_out, uint32_t cdatalen, uint32_t datalen); + + void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig); + +Index: linux-2.6.23.17/fs/jffs2/compr_rtime.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/compr_rtime.c ++++ linux-2.6.23.17/fs/jffs2/compr_rtime.c +@@ -104,7 +104,7 @@ static int jffs2_rtime_decompress(unsign + } + } + } +- return 0; ++ return 0; + } + + static struct jffs2_compressor jffs2_rtime_comp = { +Index: linux-2.6.23.17/fs/jffs2/compr_rubin.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/compr_rubin.c ++++ linux-2.6.23.17/fs/jffs2/compr_rubin.c +@@ -384,7 +384,7 @@ static int jffs2_rubinmips_decompress(un + void *model) + { + rubin_do_decompress(BIT_DIVIDER_MIPS, bits_mips, data_in, cpage_out, sourcelen, dstlen); +- return 0; ++ return 0; + } + + static int jffs2_dynrubin_decompress(unsigned char *data_in, +@@ -399,7 +399,7 @@ static int jffs2_dynrubin_decompress(uns + bits[c] = data_in[c]; + + rubin_do_decompress(256, bits, data_in+8, cpage_out, sourcelen-8, dstlen); +- return 0; ++ return 0; + } + + static struct jffs2_compressor jffs2_rubinmips_comp = { +Index: linux-2.6.23.17/fs/jffs2/compr_zlib.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/compr_zlib.c ++++ linux-2.6.23.17/fs/jffs2/compr_zlib.c +@@ -181,7 +181,7 @@ static int jffs2_zlib_decompress(unsigne + } + zlib_inflateEnd(&inf_strm); + mutex_unlock(&inflate_mutex); +- return 0; ++ return 0; + } + + static struct jffs2_compressor jffs2_zlib_comp = { +@@ -203,11 +203,11 @@ int __init jffs2_zlib_init(void) + + ret = alloc_workspaces(); + if (ret) +- return ret; ++ return ret; + + ret = jffs2_register_compressor(&jffs2_zlib_comp); + if (ret) +- free_workspaces(); ++ free_workspaces(); + + return ret; + } +Index: linux-2.6.23.17/fs/jffs2/dir.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/dir.c ++++ linux-2.6.23.17/fs/jffs2/dir.c +@@ -32,7 +32,7 @@ static int jffs2_mkdir (struct inode *,s + static int jffs2_rmdir (struct inode *,struct dentry *); + static int jffs2_mknod (struct inode *,struct dentry *,int,dev_t); + static int jffs2_rename (struct inode *, struct dentry *, +- struct inode *, struct dentry *); ++ struct inode *, struct dentry *); + + const struct file_operations jffs2_dir_operations = + { +@@ -770,7 +770,7 @@ static int jffs2_mknod (struct inode *di + } + + static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry, +- struct inode *new_dir_i, struct dentry *new_dentry) ++ struct inode *new_dir_i, struct dentry *new_dentry) + { + int ret; + struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dir_i->i_sb); +Index: linux-2.6.23.17/fs/jffs2/erase.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/erase.c ++++ linux-2.6.23.17/fs/jffs2/erase.c +@@ -38,8 +38,8 @@ static void jffs2_erase_block(struct jff + #ifdef __ECOS + ret = jffs2_flash_erase(c, jeb); + if (!ret) { +- jffs2_erase_succeeded(c, jeb); +- return; ++ jffs2_erase_succeeded(c, jeb); ++ return; + } + bad_offset = jeb->offset; + #else /* Linux */ +@@ -50,12 +50,14 @@ static void jffs2_erase_block(struct jff + instr = kmalloc(sizeof(struct erase_info) + sizeof(struct erase_priv_struct), GFP_KERNEL); + if (!instr) { + printk(KERN_WARNING "kmalloc for struct erase_info in jffs2_erase_block failed. Refiling block for later\n"); ++ down(&c->erase_free_sem); + spin_lock(&c->erase_completion_lock); + list_move(&jeb->list, &c->erase_pending_list); + c->erasing_size -= c->sector_size; + c->dirty_size += c->sector_size; + jeb->dirty_size = c->sector_size; + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + return; + } + +@@ -82,12 +84,14 @@ static void jffs2_erase_block(struct jff + if (ret == -ENOMEM || ret == -EAGAIN) { + /* Erase failed immediately. Refile it on the list */ + D1(printk(KERN_DEBUG "Erase at 0x%08x failed: %d. Refiling on erase_pending_list\n", jeb->offset, ret)); ++ down(&c->erase_free_sem); + spin_lock(&c->erase_completion_lock); + list_move(&jeb->list, &c->erase_pending_list); + c->erasing_size -= c->sector_size; + c->dirty_size += c->sector_size; + jeb->dirty_size = c->sector_size; + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + return; + } + +@@ -114,6 +118,7 @@ void jffs2_erase_pending_blocks(struct j + jeb = list_entry(c->erase_complete_list.next, struct jffs2_eraseblock, list); + list_del(&jeb->list); + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + jffs2_mark_erased_block(c, jeb); + + if (!--count) { +@@ -134,6 +139,7 @@ void jffs2_erase_pending_blocks(struct j + jffs2_free_jeb_node_refs(c, jeb); + list_add(&jeb->list, &c->erasing_list); + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + + jffs2_erase_block(c, jeb); + +@@ -142,23 +148,25 @@ void jffs2_erase_pending_blocks(struct j + } + + /* Be nice */ +- cond_resched(); ++ yield(); ++ down(&c->erase_free_sem); + spin_lock(&c->erase_completion_lock); + } + + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + done: + D1(printk(KERN_DEBUG "jffs2_erase_pending_blocks completed\n")); +- +- up(&c->erase_free_sem); + } + + static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) + { + D1(printk(KERN_DEBUG "Erase completed successfully at 0x%08x\n", jeb->offset)); ++ down(&c->erase_free_sem); + spin_lock(&c->erase_completion_lock); + list_move_tail(&jeb->list, &c->erase_complete_list); + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + /* Ensure that kupdated calls us again to mark them clean */ + jffs2_erase_pending_trigger(c); + } +@@ -172,22 +180,26 @@ static void jffs2_erase_failed(struct jf + failed too many times. */ + if (!jffs2_write_nand_badblock(c, jeb, bad_offset)) { + /* We'd like to give this block another try. */ ++ down(&c->erase_free_sem); + spin_lock(&c->erase_completion_lock); + list_move(&jeb->list, &c->erase_pending_list); + c->erasing_size -= c->sector_size; + c->dirty_size += c->sector_size; + jeb->dirty_size = c->sector_size; + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + return; + } + } + ++ down(&c->erase_free_sem); + spin_lock(&c->erase_completion_lock); + c->erasing_size -= c->sector_size; + c->bad_size += c->sector_size; + list_move(&jeb->list, &c->bad_list); + c->nr_erasing_blocks--; + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + wake_up(&c->erase_wait); + } + +@@ -317,6 +329,33 @@ static int jffs2_block_check_erase(struc + size_t retlen; + int ret = -EIO; + ++ if (c->mtd->point) { ++ unsigned long *wordebuf; ++ ++ ret = c->mtd->point(c->mtd, jeb->offset, c->sector_size, &retlen, (unsigned char **)&ebuf); ++ if (ret) { ++ D1(printk(KERN_DEBUG "MTD point failed %d\n", ret)); ++ goto do_flash_read; ++ } ++ if (retlen < c->sector_size) { ++ /* Don't muck about if it won't let us point to the whole erase sector */ ++ D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", retlen)); ++ c->mtd->unpoint(c->mtd, ebuf, jeb->offset, c->sector_size); ++ goto do_flash_read; ++ } ++ wordebuf = ebuf-sizeof(*wordebuf); ++ retlen /= sizeof(*wordebuf); ++ do { ++ if (*++wordebuf != ~0) ++ break; ++ } while(--retlen); ++ c->mtd->unpoint(c->mtd, ebuf, jeb->offset, c->sector_size); ++ if (retlen) ++ printk(KERN_WARNING "Newly-erased block contained word 0x%lx at offset 0x%08x\n", ++ *wordebuf, jeb->offset + c->sector_size-retlen*sizeof(*wordebuf)); ++ return 0; ++ } ++ do_flash_read: + ebuf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!ebuf) { + printk(KERN_WARNING "Failed to allocate page buffer for verifying erase at 0x%08x. Refiling\n", jeb->offset); +@@ -417,6 +456,7 @@ static void jffs2_mark_erased_block(stru + jffs2_link_node_ref(c, jeb, jeb->offset | REF_NORMAL, c->cleanmarker_size, NULL); + } + ++ down(&c->erase_free_sem); + spin_lock(&c->erase_completion_lock); + c->erasing_size -= c->sector_size; + c->free_size += jeb->free_size; +@@ -429,23 +469,28 @@ static void jffs2_mark_erased_block(stru + c->nr_erasing_blocks--; + c->nr_free_blocks++; + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + wake_up(&c->erase_wait); + return; + + filebad: ++ down(&c->erase_free_sem); + spin_lock(&c->erase_completion_lock); + /* Stick it on a list (any list) so erase_failed can take it + right off again. Silly, but shouldn't happen often. */ + list_add(&jeb->list, &c->erasing_list); + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + jffs2_erase_failed(c, jeb, bad_offset); + return; + + refile: + /* Stick it back on the list from whence it came and come back later */ + jffs2_erase_pending_trigger(c); ++ down(&c->erase_free_sem); + spin_lock(&c->erase_completion_lock); + list_add(&jeb->list, &c->erase_complete_list); + spin_unlock(&c->erase_completion_lock); ++ up(&c->erase_free_sem); + return; + } +Index: linux-2.6.23.17/fs/jffs2/gc.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/gc.c ++++ linux-2.6.23.17/fs/jffs2/gc.c +@@ -556,7 +556,7 @@ static int jffs2_garbage_collect_pristin + + node = kmalloc(rawlen, GFP_KERNEL); + if (!node) +- return -ENOMEM; ++ return -ENOMEM; + + ret = jffs2_flash_read(c, ref_offset(raw), rawlen, &retlen, (char *)node); + if (!ret && retlen != rawlen) +@@ -624,7 +624,7 @@ static int jffs2_garbage_collect_pristin + + if (ret || (retlen != rawlen)) { + printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %zd\n", +- rawlen, phys_ofs, ret, retlen); ++ rawlen, phys_ofs, ret, retlen); + if (retlen) { + jffs2_add_physical_node_ref(c, phys_ofs | REF_OBSOLETE, rawlen, NULL); + } else { +Index: linux-2.6.23.17/fs/jffs2/jffs2_fs_sb.h +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/jffs2_fs_sb.h ++++ linux-2.6.23.17/fs/jffs2/jffs2_fs_sb.h +@@ -106,6 +106,9 @@ struct jffs2_sb_info { + + uint32_t wbuf_pagesize; /* 0 for NOR and other flashes with no wbuf */ + ++#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY ++ unsigned char *wbuf_verify; /* read-back buffer for verification */ ++#endif + #ifdef CONFIG_JFFS2_FS_WRITEBUFFER + unsigned char *wbuf; /* Write-behind buffer for NAND flash */ + uint32_t wbuf_ofs; +Index: linux-2.6.23.17/fs/jffs2/nodelist.h +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/nodelist.h ++++ linux-2.6.23.17/fs/jffs2/nodelist.h +@@ -127,7 +127,7 @@ static inline struct jffs2_inode_cache * + return ((struct jffs2_inode_cache *)raw); + } + +- /* flash_offset & 3 always has to be zero, because nodes are ++ /* flash_offset & 3 always has to be zero, because nodes are + always aligned at 4 bytes. So we have a couple of extra bits + to play with, which indicate the node's status; see below: */ + #define REF_UNCHECKED 0 /* We haven't yet checked the CRC or built its inode */ +@@ -197,7 +197,7 @@ struct jffs2_inode_cache { + #define RAWNODE_CLASS_XATTR_DATUM 1 + #define RAWNODE_CLASS_XATTR_REF 2 + +-#define INOCACHE_HASHSIZE 128 ++#define INOCACHE_HASHSIZE 1024 + + #define write_ofs(c) ((c)->nextblock->offset + (c)->sector_size - (c)->nextblock->free_size) + +Index: linux-2.6.23.17/fs/jffs2/nodemgmt.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/nodemgmt.c ++++ linux-2.6.23.17/fs/jffs2/nodemgmt.c +@@ -154,7 +154,7 @@ int jffs2_reserve_space_gc(struct jffs2_ + while(ret == -EAGAIN) { + ret = jffs2_do_reserve_space(c, minsize, len, sumsize); + if (ret) { +- D1(printk(KERN_DEBUG "jffs2_reserve_space_gc: looping, ret is %d\n", ret)); ++ D1(printk(KERN_DEBUG "jffs2_reserve_space_gc: looping, ret is %d\n", ret)); + } + } + spin_unlock(&c->erase_completion_lock); +@@ -423,7 +423,12 @@ struct jffs2_raw_node_ref *jffs2_add_phy + even after refiling c->nextblock */ + if ((c->nextblock || ((ofs & 3) != REF_OBSOLETE)) + && (jeb != c->nextblock || (ofs & ~3) != jeb->offset + (c->sector_size - jeb->free_size))) { +- printk(KERN_WARNING "argh. node added in wrong place\n"); ++ printk(KERN_WARNING "argh. node added in wrong place at 0x%08x(%d)\n", ofs & ~3, ofs & 3); ++ if (c->nextblock) ++ printk(KERN_WARNING "nextblock 0x%08x", c->nextblock->offset); ++ else ++ printk(KERN_WARNING "No nextblock"); ++ printk(", expected at %08x\n", jeb->offset + (c->sector_size - jeb->free_size)); + return ERR_PTR(-EINVAL); + } + #endif +Index: linux-2.6.23.17/fs/jffs2/readinode.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/readinode.c ++++ linux-2.6.23.17/fs/jffs2/readinode.c +@@ -211,7 +211,7 @@ static void jffs2_kill_tn(struct jffs2_s + * ordering. + * + * Returns 0 if the node was handled (including marking it obsolete) +- * < 0 an if error occurred ++ * < 0 an if error occurred + */ + static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c, + struct jffs2_readinode_info *rii, +@@ -862,8 +862,8 @@ static inline int read_unknown(struct jf + JFFS2_ERROR("REF_UNCHECKED but unknown node at %#08x\n", + ref_offset(ref)); + JFFS2_ERROR("Node is {%04x,%04x,%08x,%08x}. Please report this error.\n", +- je16_to_cpu(un->magic), je16_to_cpu(un->nodetype), +- je32_to_cpu(un->totlen), je32_to_cpu(un->hdr_crc)); ++ je16_to_cpu(un->magic), je16_to_cpu(un->nodetype), ++ je32_to_cpu(un->totlen), je32_to_cpu(un->hdr_crc)); + jffs2_mark_node_obsolete(c, ref); + return 0; + } +Index: linux-2.6.23.17/fs/jffs2/scan.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/scan.c ++++ linux-2.6.23.17/fs/jffs2/scan.c +@@ -877,7 +877,7 @@ scan_more: + switch (je16_to_cpu(node->nodetype) & JFFS2_COMPAT_MASK) { + case JFFS2_FEATURE_ROCOMPAT: + printk(KERN_NOTICE "Read-only compatible feature node (0x%04x) found at offset 0x%08x\n", je16_to_cpu(node->nodetype), ofs); +- c->flags |= JFFS2_SB_FLAG_RO; ++ c->flags |= JFFS2_SB_FLAG_RO; + if (!(jffs2_is_readonly(c))) + return -EROFS; + if ((err = jffs2_scan_dirty_space(c, jeb, PAD(je32_to_cpu(node->totlen))))) +Index: linux-2.6.23.17/fs/jffs2/security.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/security.c ++++ linux-2.6.23.17/fs/jffs2/security.c +@@ -38,9 +38,9 @@ int jffs2_init_security(struct inode *in + } + rc = do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, name, value, len, 0); + +- kfree(name); +- kfree(value); +- return rc; ++ kfree(name); ++ kfree(value); ++ return rc; + } + + /* ---- XATTR Handler for "security.*" ----------------- */ +Index: linux-2.6.23.17/fs/jffs2/summary.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/summary.c ++++ linux-2.6.23.17/fs/jffs2/summary.c +@@ -2,10 +2,10 @@ + * JFFS2 -- Journalling Flash File System, Version 2. + * + * Copyright © 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>, +- * Zoltan Sogor <weth@inf.u-szeged.hu>, +- * Patrik Kluba <pajko@halom.u-szeged.hu>, +- * University of Szeged, Hungary +- * 2006 KaiGai Kohei <kaigai@ak.jp.nec.com> ++ * Zoltan Sogor <weth@inf.u-szeged.hu>, ++ * Patrik Kluba <pajko@halom.u-szeged.hu>, ++ * University of Szeged, Hungary ++ * 2006 KaiGai Kohei <kaigai@ak.jp.nec.com> + * + * For licensing information, see the file 'LICENCE' in this directory. + * +Index: linux-2.6.23.17/fs/jffs2/summary.h +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/summary.h ++++ linux-2.6.23.17/fs/jffs2/summary.h +@@ -2,9 +2,9 @@ + * JFFS2 -- Journalling Flash File System, Version 2. + * + * Copyright © 2004 Ferenc Havasi <havasi@inf.u-szeged.hu>, +- * Zoltan Sogor <weth@inf.u-szeged.hu>, +- * Patrik Kluba <pajko@halom.u-szeged.hu>, +- * University of Szeged, Hungary ++ * Zoltan Sogor <weth@inf.u-szeged.hu>, ++ * Patrik Kluba <pajko@halom.u-szeged.hu>, ++ * University of Szeged, Hungary + * + * For licensing information, see the file 'LICENCE' in this directory. + * +Index: linux-2.6.23.17/fs/jffs2/wbuf.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/wbuf.c ++++ linux-2.6.23.17/fs/jffs2/wbuf.c +@@ -220,6 +220,47 @@ static struct jffs2_raw_node_ref **jffs2 + return NULL; + } + ++#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY ++static int jffs2_verify_write(struct jffs2_sb_info *c, unsigned char *buf, ++ uint32_t ofs) ++{ ++ int ret; ++ size_t retlen; ++ char *eccstr; ++ ++ ret = c->mtd->read(c->mtd, ofs, c->wbuf_pagesize, &retlen, c->wbuf_verify); ++ if (ret && ret != -EUCLEAN && ret != -EBADMSG) { ++ printk(KERN_WARNING "jffs2_verify_write(): Read back of page at %08x failed: %d\n", c->wbuf_ofs, ret); ++ return ret; ++ } else if (retlen != c->wbuf_pagesize) { ++ printk(KERN_WARNING "jffs2_verify_write(): Read back of page at %08x gave short read: %zd not %d.\n", ofs, retlen, c->wbuf_pagesize); ++ return -EIO; ++ } ++ if (!memcmp(buf, c->wbuf_verify, c->wbuf_pagesize)) ++ return 0; ++ ++ if (ret == -EUCLEAN) ++ eccstr = "corrected"; ++ else if (ret == -EBADMSG) ++ eccstr = "correction failed"; ++ else ++ eccstr = "OK or unused"; ++ ++ printk(KERN_WARNING "Write verify error (ECC %s) at %08x. Wrote:\n", ++ eccstr, c->wbuf_ofs); ++ print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 1, ++ c->wbuf, c->wbuf_pagesize, 0); ++ ++ printk(KERN_WARNING "Read back:\n"); ++ print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 1, ++ c->wbuf_verify, c->wbuf_pagesize, 0); ++ ++ return -EIO; ++} ++#else ++#define jffs2_verify_write(c,b,o) (0) ++#endif ++ + /* Recover from failure to write wbuf. Recover the nodes up to the + * wbuf, not the one which we were starting to try to write. */ + +@@ -380,7 +421,7 @@ static void jffs2_wbuf_recover(struct jf + ret = c->mtd->write(c->mtd, ofs, towrite, &retlen, + rewrite_buf); + +- if (ret || retlen != towrite) { ++ if (ret || retlen != towrite || jffs2_verify_write(c, rewrite_buf, ofs)) { + /* Argh. We tried. Really we did. */ + printk(KERN_CRIT "Recovery of wbuf failed due to a second write error\n"); + kfree(buf); +@@ -587,15 +628,16 @@ static int __jffs2_flush_wbuf(struct jff + + ret = c->mtd->write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, c->wbuf); + +- if (ret || retlen != c->wbuf_pagesize) { +- if (ret) +- printk(KERN_WARNING "jffs2_flush_wbuf(): Write failed with %d\n",ret); +- else { +- printk(KERN_WARNING "jffs2_flush_wbuf(): Write was short: %zd instead of %d\n", +- retlen, c->wbuf_pagesize); +- ret = -EIO; +- } +- ++ if (ret) { ++ printk(KERN_WARNING "jffs2_flush_wbuf(): Write failed with %d\n", ret); ++ goto wfail; ++ } else if (retlen != c->wbuf_pagesize) { ++ printk(KERN_WARNING "jffs2_flush_wbuf(): Write was short: %zd instead of %d\n", ++ retlen, c->wbuf_pagesize); ++ ret = -EIO; ++ goto wfail; ++ } else if ((ret = jffs2_verify_write(c, c->wbuf, c->wbuf_ofs))) { ++ wfail: + jffs2_wbuf_recover(c); + + return ret; +@@ -966,8 +1008,8 @@ exit: + + #define NR_OOB_SCAN_PAGES 4 + +-/* For historical reasons we use only 12 bytes for OOB clean marker */ +-#define OOB_CM_SIZE 12 ++/* For historical reasons we use only 8 bytes for OOB clean marker */ ++#define OOB_CM_SIZE 8 + + static const struct jffs2_unknown_node oob_cleanmarker = + { +@@ -1021,8 +1063,8 @@ int jffs2_check_oob_empty(struct jffs2_s + /* + * Check for a valid cleanmarker. + * Returns: 0 if a valid cleanmarker was found +- * 1 if no cleanmarker was found +- * negative error code if an error occurred ++ * 1 if no cleanmarker was found ++ * negative error code if an error occurred + */ + int jffs2_check_nand_cleanmarker(struct jffs2_sb_info *c, + struct jffs2_eraseblock *jeb) +@@ -1138,11 +1180,22 @@ int jffs2_nand_flash_setup(struct jffs2_ + return -ENOMEM; + } + ++#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY ++ c->wbuf_verify = kmalloc(c->wbuf_pagesize, GFP_KERNEL); ++ if (!c->wbuf_verify) { ++ kfree(c->oobbuf); ++ kfree(c->wbuf); ++ return -ENOMEM; ++ } ++#endif + return 0; + } + + void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c) + { ++#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY ++ kfree(c->wbuf_verify); ++#endif + kfree(c->wbuf); + kfree(c->oobbuf); + } +Index: linux-2.6.23.17/fs/jffs2/xattr.h +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/xattr.h ++++ linux-2.6.23.17/fs/jffs2/xattr.h +@@ -75,7 +75,7 @@ extern void jffs2_build_xattr_subsystem( + extern void jffs2_clear_xattr_subsystem(struct jffs2_sb_info *c); + + extern struct jffs2_xattr_datum *jffs2_setup_xattr_datum(struct jffs2_sb_info *c, +- uint32_t xid, uint32_t version); ++ uint32_t xid, uint32_t version); + + extern void jffs2_xattr_delete_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic); + extern void jffs2_xattr_free_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic); +Index: linux-2.6.23.17/fs/jffs2/xattr_user.c +=================================================================== +--- linux-2.6.23.17.orig/fs/jffs2/xattr_user.c ++++ linux-2.6.23.17/fs/jffs2/xattr_user.c +@@ -17,7 +17,7 @@ + #include "nodelist.h" + + static int jffs2_user_getxattr(struct inode *inode, const char *name, +- void *buffer, size_t size) ++ void *buffer, size_t size) + { + if (!strcmp(name, "")) + return -EINVAL; +@@ -25,7 +25,7 @@ static int jffs2_user_getxattr(struct in + } + + static int jffs2_user_setxattr(struct inode *inode, const char *name, const void *buffer, +- size_t size, int flags) ++ size_t size, int flags) + { + if (!strcmp(name, "")) + return -EINVAL; +Index: linux-2.6.23.17/include/asm-i386/geode.h +=================================================================== +--- linux-2.6.23.17.orig/include/asm-i386/geode.h ++++ linux-2.6.23.17/include/asm-i386/geode.h +@@ -135,6 +135,55 @@ static inline void geode_gpio_event_pme( + geode_gpio_setup_event(gpio, pair, 1); + } + ++/* MFGPT */ ++ ++#define MFGPT_TIMER_ANY -1 ++ ++#define MFGPT_DOMAIN_WORKING 1 ++#define MFGPT_DOMAIN_STANDBY 2 ++#define MFGPT_DOMAIN_ANY (MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY) ++ ++#define MFGPT_CMP1 0 ++#define MFGPT_CMP2 1 ++ ++#define MFGPT_EVENT_IRQ 0 ++#define MFGPT_EVENT_NMI 1 ++#define MFGPT_EVENT_RESET 3 ++ ++#define MFGPT_REG_CMP1 0 ++#define MFGPT_REG_CMP2 2 ++#define MFGPT_REG_COUNTER 4 ++#define MFGPT_REG_SETUP 6 ++ ++#define MFGPT_SETUP_CNTEN (1 << 15) ++#define MFGPT_SETUP_CMP2 (1 << 14) ++#define MFGPT_SETUP_CMP1 (1 << 13) ++#define MFGPT_SETUP_SETUP (1 << 12) ++#define MFGPT_SETUP_STOPEN (1 << 11) ++#define MFGPT_SETUP_EXTEN (1 << 10) ++#define MFGPT_SETUP_REVEN (1 << 5) ++#define MFGPT_SETUP_CLKSEL (1 << 4) ++ ++static inline void geode_mfgpt_write(int timer, u16 reg, u16 value) ++{ ++ u32 base = geode_get_dev_base(GEODE_DEV_MFGPT); ++ outw(value, base + reg + (timer * 8)); ++} ++ ++static inline u16 geode_mfgpt_read(int timer, u16 reg) ++{ ++ u32 base = geode_get_dev_base(GEODE_DEV_MFGPT); ++ return inw(base + reg + (timer * 8)); ++} ++ ++extern int __init geode_mfgpt_detect(void); ++extern int geode_mfgpt_toggle_event(int timer, int cmp, int event, int enable); ++extern int geode_mfgpt_set_irq(int timer, int cmp, int irq, int enable); ++extern int geode_mfgpt_alloc_timer(int timer, int domain, struct module *owner); ++ ++#define geode_mfgpt_setup_irq(t,c,i) geode_mfgpt_set_irq((t),(c),(i),1) ++#define geode_mfgpt_release_irq(t,c,i) geode_mfgpt_set_irq((t),(c),(i),0) ++ + /* Specific geode tests */ + + static inline int is_geode_gx(void) +Index: linux-2.6.23.17/include/asm-i386/setup.h +=================================================================== +--- linux-2.6.23.17.orig/include/asm-i386/setup.h ++++ linux-2.6.23.17/include/asm-i386/setup.h +@@ -24,6 +24,7 @@ + #define OLD_CL_BASE_ADDR 0x90000 + #define OLD_CL_OFFSET 0x90022 + #define NEW_CL_POINTER 0x228 /* Relative to real mode data */ ++#define OFW_INFO_OFFSET 0xb0 /* Relative to real mode data */ + + #ifndef __ASSEMBLY__ + +Index: linux-2.6.23.17/include/linux/console.h +=================================================================== +--- linux-2.6.23.17.orig/include/linux/console.h ++++ linux-2.6.23.17/include/linux/console.h +@@ -121,14 +121,11 @@ extern void console_stop(struct console + extern void console_start(struct console *); + extern int is_console_locked(void); + +-#ifndef CONFIG_DISABLE_CONSOLE_SUSPEND ++extern int serial_console_suspend_enabled; ++ + /* Suspend and resume console messages over PM events */ + extern void suspend_console(void); + extern void resume_console(void); +-#else +-static inline void suspend_console(void) {} +-static inline void resume_console(void) {} +-#endif /* CONFIG_DISABLE_CONSOLE_SUSPEND */ + + int mda_console_init(void); + void prom_con_init(void); +Index: linux-2.6.23.17/include/linux/fb.h +=================================================================== +--- linux-2.6.23.17.orig/include/linux/fb.h ++++ linux-2.6.23.17/include/linux/fb.h +@@ -664,6 +664,12 @@ struct fb_ops { + /* restore saved state */ + void (*fb_restore_state)(struct fb_info *info); + ++ /* Shut down the graphics engine to save power */ ++ int (*fb_powerdown)(struct fb_info *info); ++ ++ /* Power it back up */ ++ int (*fb_powerup)(struct fb_info *info); ++ + /* get capability given var */ + void (*fb_get_caps)(struct fb_info *info, struct fb_blit_caps *caps, + struct fb_var_screeninfo *var); +@@ -943,6 +949,9 @@ extern int fb_get_color_depth(struct fb_ + extern int fb_get_options(char *name, char **option); + extern int fb_new_modelist(struct fb_info *info); + ++extern int fb_powerdown(struct fb_info *info); ++extern int fb_powerup(struct fb_info *info); ++ + extern struct fb_info *registered_fb[FB_MAX]; + extern int num_registered_fb; + extern struct class *fb_class; +Index: linux-2.6.23.17/include/linux/mtd/onenand.h +=================================================================== +--- linux-2.6.23.17.orig/include/linux/mtd/onenand.h ++++ linux-2.6.23.17/include/linux/mtd/onenand.h +@@ -60,6 +60,7 @@ struct onenand_bufferram { + * @erase_shift: [INTERN] number of address bits in a block + * @page_shift: [INTERN] number of address bits in a page + * @page_mask: [INTERN] a page per block mask ++ * @writesize: [INTERN] a real page size + * @bufferram_index: [INTERN] BufferRAM index + * @bufferram: [INTERN] BufferRAM info + * @readw: [REPLACEABLE] hardware specific function for read short +@@ -100,6 +101,7 @@ struct onenand_chip { + unsigned int erase_shift; + unsigned int page_shift; + unsigned int page_mask; ++ unsigned int writesize; + + unsigned int bufferram_index; + struct onenand_bufferram bufferram[MAX_BUFFERRAM]; +@@ -140,6 +142,8 @@ struct onenand_chip { + #define ONENAND_NEXT_BUFFERRAM(this) (this->bufferram_index ^ 1) + #define ONENAND_SET_NEXT_BUFFERRAM(this) (this->bufferram_index ^= 1) + #define ONENAND_SET_PREV_BUFFERRAM(this) (this->bufferram_index ^= 1) ++#define ONENAND_SET_BUFFERRAM0(this) (this->bufferram_index = 0) ++#define ONENAND_SET_BUFFERRAM1(this) (this->bufferram_index = 1) + + #define ONENAND_GET_SYS_CFG1(this) \ + (this->read_word(this->base + ONENAND_REG_SYS_CFG1)) +@@ -149,6 +153,13 @@ struct onenand_chip { + #define ONENAND_IS_DDP(this) \ + (this->device_id & ONENAND_DEVICE_IS_DDP) + ++#ifdef CONFIG_MTD_ONENAND_2X_PROGRAM ++#define ONENAND_IS_2PLANE(this) \ ++ (this->options & ONENAND_HAS_2PLANE) ++#else ++#define ONENAND_IS_2PLANE(this) (0) ++#endif ++ + /* Check byte access in OneNAND */ + #define ONENAND_CHECK_BYTE_ACCESS(addr) (addr & 0x1) + +@@ -157,6 +168,7 @@ struct onenand_chip { + */ + #define ONENAND_HAS_CONT_LOCK (0x0001) + #define ONENAND_HAS_UNLOCK_ALL (0x0002) ++#define ONENAND_HAS_2PLANE (0x0004) + #define ONENAND_PAGEBUF_ALLOC (0x1000) + #define ONENAND_OOBBUF_ALLOC (0x2000) + +Index: linux-2.6.23.17/include/linux/mtd/onenand_regs.h +=================================================================== +--- linux-2.6.23.17.orig/include/linux/mtd/onenand_regs.h ++++ linux-2.6.23.17/include/linux/mtd/onenand_regs.h +@@ -74,6 +74,8 @@ + + #define ONENAND_DEVICE_DENSITY_512Mb (0x002) + #define ONENAND_DEVICE_DENSITY_1Gb (0x003) ++#define ONENAND_DEVICE_DENSITY_2Gb (0x004) ++#define ONENAND_DEVICE_DENSITY_4Gb (0x005) + + /* + * Version ID Register F002h (R) +@@ -111,6 +113,8 @@ + #define ONENAND_CMD_READOOB (0x13) + #define ONENAND_CMD_PROG (0x80) + #define ONENAND_CMD_PROGOOB (0x1A) ++#define ONENAND_CMD_2X_PROG (0x7D) ++#define ONENAND_CMD_2X_CACHE_PROG (0x7F) + #define ONENAND_CMD_UNLOCK (0x23) + #define ONENAND_CMD_LOCK (0x2A) + #define ONENAND_CMD_LOCK_TIGHT (0x2C) +Index: linux-2.6.23.17/include/linux/vt_kern.h +=================================================================== +--- linux-2.6.23.17.orig/include/linux/vt_kern.h ++++ linux-2.6.23.17/include/linux/vt_kern.h +@@ -95,4 +95,23 @@ struct vt_spawn_console { + }; + extern struct vt_spawn_console vt_spawn_con; + ++/* A notifier list for console events */ ++extern struct raw_notifier_head console_notifier_list; ++ ++/* Called when the FG console switches to KD_TEXT mode */ ++#define CONSOLE_EVENT_SWITCH_TEXT 0x01 ++ ++/* Called when the FG console switches to KD_GRAPHICS mode */ ++#define CONSOLE_EVENT_SWITCH_GRAPHICS 0x02 ++ ++static inline int console_event_register(struct notifier_block *n) ++{ ++ return raw_notifier_chain_register(&console_notifier_list, n); ++} ++ ++static inline int console_event_unregister(struct notifier_block *n) ++{ ++ return raw_notifier_chain_unregister(&console_notifier_list, n); ++} ++ + #endif /* _VT_KERN_H */ +Index: linux-2.6.23.17/kernel/power/console.c +=================================================================== +--- linux-2.6.23.17.orig/kernel/power/console.c ++++ linux-2.6.23.17/kernel/power/console.c +@@ -9,7 +9,7 @@ + #include <linux/console.h> + #include "power.h" + +-#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) ++#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) && !defined(CONFIG_DISABLE_SUSPEND_VT_SWITCH) + #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1) + + static int orig_fgconsole, orig_kmsg; |