diff options
Diffstat (limited to 'target/linux/ar71xx/patches-2.6.27')
15 files changed, 600 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-2.6.27/001-ar71xx_core.patch b/target/linux/ar71xx/patches-2.6.27/001-ar71xx_core.patch new file mode 100644 index 0000000..1f1480c --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/001-ar71xx_core.patch @@ -0,0 +1,60 @@ +--- a/arch/mips/Makefile ++++ b/arch/mips/Makefile +@@ -577,6 +577,13 @@ + # + core-$(CONFIG_TOSHIBA_RBTX4938) += arch/mips/txx9/rbtx4938/ + ++# ++# Atheros AR71xx ++# ++core-$(CONFIG_ATHEROS_AR71XX) += arch/mips/ar71xx/ ++cflags-$(CONFIG_ATHEROS_AR71XX) += -Iinclude/asm-mips/mach-ar71xx ++load-$(CONFIG_ATHEROS_AR71XX) += 0xffffffff80060000 ++ + # temporary until string.h is fixed + cflags-y += -ffreestanding + +--- a/include/asm-mips/bootinfo.h ++++ b/include/asm-mips/bootinfo.h +@@ -57,6 +57,15 @@ + #define MACH_MIKROTIK_RB532 0 /* Mikrotik RouterBoard 532 */ + #define MACH_MIKROTIK_RB532A 1 /* Mikrotik RouterBoard 532A */ + ++/* ++ * Valid machtype for Atheros AR71xx based boards ++ */ ++#define MACH_AR71XX_GENERIC 0 ++#define MACH_AR71XX_WP543 1 /* Compex WP543 */ ++#define MACH_AR71XX_RB_411 2 /* MikroTik RouterBOARD 411 */ ++#define MACH_AR71XX_RB_433 3 /* MikroTik RouterBOARD 433/433AH */ ++#define MACH_AR71XX_RB_450 4 /* MikroTik RouterBOARD 450 */ ++ + #define CL_SIZE COMMAND_LINE_SIZE + + extern char *system_type; +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -22,6 +22,23 @@ + config MACH_ALCHEMY + bool "Alchemy processor based machines" + ++config ATHEROS_AR71XX ++ bool "Atheros AR71xx based boards" ++ select CEVT_R4K ++ select CSRC_R4K ++ select DMA_NONCOHERENT ++ select HW_HAS_PCI ++ select IRQ_CPU ++ select ARCH_REQUIRE_GPIOLIB ++ select SYS_HAS_CPU_MIPS32_R1 ++ select SYS_HAS_CPU_MIPS32_R2 ++ select SYS_SUPPORTS_32BIT_KERNEL ++ select SYS_SUPPORTS_BIG_ENDIAN ++ select SYS_HAS_EARLY_PRINTK ++ select MIPS_MACHINE ++ help ++ Support for Atheros AR71xx based boards. ++ + config BASLER_EXCITE + bool "Basler eXcite smart camera" + select CEVT_R4K diff --git a/target/linux/ar71xx/patches-2.6.27/002-ar71xx_pci.patch b/target/linux/ar71xx/patches-2.6.27/002-ar71xx_pci.patch new file mode 100644 index 0000000..849938e --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/002-ar71xx_pci.patch @@ -0,0 +1,10 @@ +--- a/arch/mips/pci/Makefile ++++ b/arch/mips/pci/Makefile +@@ -16,6 +16,7 @@ + obj-$(CONFIG_MARKEINS) += ops-emma2rh.o pci-emma2rh.o fixup-emma2rh.o + obj-$(CONFIG_PCI_TX4927) += ops-tx4927.o + obj-$(CONFIG_BCM47XX) += pci-bcm47xx.o ++obj-$(CONFIG_ATHEROS_AR71XX) += pci-ar71xx.o + + # + # These are still pretty much in the old state, watch, go blind. diff --git a/target/linux/ar71xx/patches-2.6.27/003-ar71xx_usb_host.patch b/target/linux/ar71xx/patches-2.6.27/003-ar71xx_usb_host.patch new file mode 100644 index 0000000..e28d045 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/003-ar71xx_usb_host.patch @@ -0,0 +1,70 @@ +--- a/drivers/usb/host/Kconfig ++++ b/drivers/usb/host/Kconfig +@@ -81,6 +81,12 @@ + depends on USB_EHCI_HCD && (440EPX || ARCH_IXP4XX) + default y + ++config USB_EHCI_AR71XX ++ bool "USB EHCI support for AR71xx" ++ depends on USB_EHCI_HCD && ATHEROS_AR71XX ++ help ++ Support for Atheros AR71xx built-in EHCI controller ++ + config USB_EHCI_FSL + bool "Support for Freescale on-chip EHCI USB controller" + depends on USB_EHCI_HCD && FSL_SOC +@@ -152,6 +158,12 @@ + To compile this driver as a module, choose M here: the + module will be called ohci-hcd. + ++config USB_OHCI_AR71XX ++ bool "USB OHCI support for Atheros AR71xx" ++ depends on USB_OHCI_HCD && ATHEROS_AR71XX ++ help ++ Support for Atheros AR71xx built-in OHCI controller ++ + config USB_OHCI_HCD_PPC_SOC + bool "OHCI support for on-chip PPC USB controller" + depends on USB_OHCI_HCD && (STB03xxx || PPC_MPC52xx) +--- a/drivers/usb/host/ehci-hcd.c ++++ b/drivers/usb/host/ehci-hcd.c +@@ -1040,6 +1040,11 @@ + #define PLATFORM_DRIVER ixp4xx_ehci_driver + #endif + ++#ifdef CONFIG_USB_EHCI_AR71XX ++#include "ehci-ar71xx.c" ++#define PLATFORM_DRIVER ehci_hcd_ar71xx_driver ++#endif ++ + #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \ + !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) + #error "missing bus glue for ehci-hcd" +--- a/drivers/usb/host/ohci.h ++++ b/drivers/usb/host/ohci.h +@@ -549,6 +549,11 @@ + #define writel_be(val, addr) out_be32((__force unsigned *)addr, val) + #endif + ++#if defined(CONFIG_ATHEROS_AR71XX) ++#define readl_be(addr) __raw_readl(addr) ++#define writel_be(val, addr) __raw_writel(addr, val) ++#endif ++ + static inline unsigned int _ohci_readl (const struct ohci_hcd *ohci, + __hc32 __iomem * regs) + { +--- a/drivers/usb/host/ohci-hcd.c ++++ b/drivers/usb/host/ohci-hcd.c +@@ -1078,6 +1078,11 @@ + #define SM501_OHCI_DRIVER ohci_hcd_sm501_driver + #endif + ++#ifdef CONFIG_USB_OHCI_AR71XX ++#include "ohci-ar71xx.c" ++#define PLATFORM_DRIVER ohci_hcd_ar71xx_driver ++#endif ++ + #if !defined(PCI_DRIVER) && \ + !defined(PLATFORM_DRIVER) && \ + !defined(OF_PLATFORM_DRIVER) && \ diff --git a/target/linux/ar71xx/patches-2.6.27/004-ar71xx_spi_controller.patch b/target/linux/ar71xx/patches-2.6.27/004-ar71xx_spi_controller.patch new file mode 100644 index 0000000..ef9f7e8 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/004-ar71xx_spi_controller.patch @@ -0,0 +1,26 @@ +--- a/drivers/spi/Kconfig ++++ b/drivers/spi/Kconfig +@@ -53,6 +53,13 @@ + + comment "SPI Master Controller Drivers" + ++config SPI_AR71XX ++ tristate "Atheros AR71xx SPI Controller" ++ depends on SPI_MASTER && ATHEROS_AR71XX ++ select SPI_BITBANG ++ help ++ This is the SPI contoller driver for Atheros AR71xx. ++ + config SPI_ATMEL + tristate "Atmel SPI Controller" + depends on (ARCH_AT91 || AVR32) +--- a/drivers/spi/Makefile ++++ b/drivers/spi/Makefile +@@ -11,6 +11,7 @@ + obj-$(CONFIG_SPI_MASTER) += spi.o + + # SPI master controller drivers (bus) ++obj-$(CONFIG_SPI_AR71XX) += ar71xx_spi.o + obj-$(CONFIG_SPI_ATMEL) += atmel_spi.o + obj-$(CONFIG_SPI_BFIN) += spi_bfin5xx.o + obj-$(CONFIG_SPI_BITBANG) += spi_bitbang.o diff --git a/target/linux/ar71xx/patches-2.6.27/005-ar71xx_mac_driver.patch b/target/linux/ar71xx/patches-2.6.27/005-ar71xx_mac_driver.patch new file mode 100644 index 0000000..6e4c7b0 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/005-ar71xx_mac_driver.patch @@ -0,0 +1,21 @@ +--- a/drivers/net/Kconfig ++++ b/drivers/net/Kconfig +@@ -2015,6 +2015,8 @@ + + The safe and default value for this is N. + ++source drivers/net/ag71xx/Kconfig ++ + config DL2K + tristate "DL2000/TC902x-based Gigabit Ethernet support" + depends on PCI +--- a/drivers/net/Makefile ++++ b/drivers/net/Makefile +@@ -2,6 +2,7 @@ + # Makefile for the Linux network (ethercard) device drivers. + # + ++obj-$(CONFIG_AG71XX) += ag71xx/ + obj-$(CONFIG_E1000) += e1000/ + obj-$(CONFIG_E1000E) += e1000e/ + obj-$(CONFIG_IBM_NEW_EMAC) += ibm_newemac/ diff --git a/target/linux/ar71xx/patches-2.6.27/006-ar71xx_wdt_driver.patch b/target/linux/ar71xx/patches-2.6.27/006-ar71xx_wdt_driver.patch new file mode 100644 index 0000000..2dc92f9 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/006-ar71xx_wdt_driver.patch @@ -0,0 +1,26 @@ +--- a/drivers/watchdog/Kconfig ++++ b/drivers/watchdog/Kconfig +@@ -704,6 +704,13 @@ + help + Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. + ++config AR71XX_WDT ++ tristate "Atheros AR71xx Watchdog Timer" ++ depends on ATHEROS_AR71XX ++ help ++ Hardware driver for the built-in watchdog timer on the Atheros ++ AR71xx SoCs. ++ + # PARISC Architecture + + # POWERPC Architecture +--- a/drivers/watchdog/Makefile ++++ b/drivers/watchdog/Makefile +@@ -102,6 +102,7 @@ + obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o + obj-$(CONFIG_AR7_WDT) += ar7_wdt.o + obj-$(CONFIG_TXX9_WDT) += txx9wdt.o ++obj-$(CONFIG_AR71XX_WDT) += ar71xx_wdt.o + + # PARISC Architecture + diff --git a/target/linux/ar71xx/patches-2.6.27/100-mtd_pm25lv_flash_support.patch b/target/linux/ar71xx/patches-2.6.27/100-mtd_pm25lv_flash_support.patch new file mode 100644 index 0000000..34a3d04 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/100-mtd_pm25lv_flash_support.patch @@ -0,0 +1,13 @@ +--- a/drivers/mtd/devices/m25p80.c ++++ b/drivers/mtd/devices/m25p80.c +@@ -467,6 +467,10 @@ + { "at26df161a", 0x1f4601, 64 * 1024, 32, SECT_4K, }, + { "at26df321", 0x1f4701, 64 * 1024, 64, SECT_4K, }, + ++ /* PMC -- pm25x "blocks" are 32K, sectors are 4K */ ++ { "pm25lv512", 0, 32 * 1024, 2, SECT_4K }, ++ { "pm25lv010", 0, 32 * 1024, 4, SECT_4K }, ++ + /* Spansion -- single (large) sector size only, at least + * for the chips listed here (without boot sectors). + */ diff --git a/target/linux/ar71xx/patches-2.6.27/101-ksz8041_phy_driver.patch b/target/linux/ar71xx/patches-2.6.27/101-ksz8041_phy_driver.patch new file mode 100644 index 0000000..0797505 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/101-ksz8041_phy_driver.patch @@ -0,0 +1,24 @@ +--- a/drivers/net/phy/Kconfig ++++ b/drivers/net/phy/Kconfig +@@ -77,6 +77,11 @@ + ---help--- + Currently supports the Marvell 88E6060 switch. + ++config MICREL_PHY ++ tristate "Drivers for Micrel/Kendin PHYs" ++ ---help--- ++ Currently has a driver for the KSZ8041 ++ + config FIXED_PHY + bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" + depends on PHYLIB=y +--- a/drivers/net/phy/Makefile ++++ b/drivers/net/phy/Makefile +@@ -15,6 +15,7 @@ + obj-$(CONFIG_ADM6996_PHY) += adm6996.o + obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o + obj-$(CONFIG_REALTEK_PHY) += realtek.o ++obj-$(CONFIG_MICREL_PHY) += micrel.o + obj-$(CONFIG_FIXED_PHY) += fixed.o + obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o + obj-$(CONFIG_MDIO_OF_GPIO) += mdio-ofgpio.o diff --git a/target/linux/ar71xx/patches-2.6.27/140-redboot_partition_scan.patch b/target/linux/ar71xx/patches-2.6.27/140-redboot_partition_scan.patch new file mode 100644 index 0000000..a76bd83 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/140-redboot_partition_scan.patch @@ -0,0 +1,54 @@ +--- a/drivers/mtd/redboot.c ++++ b/drivers/mtd/redboot.c +@@ -60,31 +60,32 @@ + static char nullstring[] = "unallocated"; + #endif + ++ buf = vmalloc(master->erasesize); ++ if (!buf) ++ return -ENOMEM; ++ ++ restart: + if ( directory < 0 ) { + offset = master->size + directory * master->erasesize; +- while (master->block_isbad && ++ while (master->block_isbad && + master->block_isbad(master, offset)) { + if (!offset) { + nogood: + printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n"); ++ vfree(buf); + return -EIO; + } + offset -= master->erasesize; + } + } else { + offset = directory * master->erasesize; +- while (master->block_isbad && ++ while (master->block_isbad && + master->block_isbad(master, offset)) { + offset += master->erasesize; + if (offset == master->size) + goto nogood; + } + } +- buf = vmalloc(master->erasesize); +- +- if (!buf) +- return -ENOMEM; +- + printk(KERN_NOTICE "Searching for RedBoot partition table in %s at offset 0x%lx\n", + master->name, offset); + +@@ -156,6 +157,11 @@ + } + if (i == numslots) { + /* Didn't find it */ ++ if (offset + master->erasesize < master->size) { ++ /* not at the end of the flash yet, maybe next block :) */ ++ directory++; ++ goto restart; ++ } + printk(KERN_NOTICE "No RedBoot partition table detected in %s\n", + master->name); + ret = 0; diff --git a/target/linux/ar71xx/patches-2.6.27/200-rb4xx_nand_driver.patch b/target/linux/ar71xx/patches-2.6.27/200-rb4xx_nand_driver.patch new file mode 100644 index 0000000..bc468ee --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/200-rb4xx_nand_driver.patch @@ -0,0 +1,21 @@ +--- a/drivers/mtd/nand/Kconfig ++++ b/drivers/mtd/nand/Kconfig +@@ -406,4 +406,8 @@ + Enables support for NAND Flash chips wired onto Freescale PowerPC + processor localbus with User-Programmable Machine support. + ++config MTD_NAND_RB4XX ++ tristate "NAND flash driver for RouterBoard 4xx series" ++ depends on MTD_NAND && ATHEROS_AR71XX ++ + endif # MTD_NAND +--- a/drivers/mtd/nand/Makefile ++++ b/drivers/mtd/nand/Makefile +@@ -29,6 +29,7 @@ + obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o + obj-$(CONFIG_MTD_NAND_TMIO) += tmio_nand.o + obj-$(CONFIG_MTD_NAND_PLATFORM) += plat_nand.o ++obj-$(CONFIG_MTD_NAND_RB4XX) += rb4xx_nand.o + obj-$(CONFIG_MTD_ALAUDA) += alauda.o + obj-$(CONFIG_MTD_NAND_PASEMI) += pasemi_nand.o + obj-$(CONFIG_MTD_NAND_ORION) += orion_nand.o diff --git a/target/linux/ar71xx/patches-2.6.27/300-mips_fw_myloader.patch b/target/linux/ar71xx/patches-2.6.27/300-mips_fw_myloader.patch new file mode 100644 index 0000000..bfff74a --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/300-mips_fw_myloader.patch @@ -0,0 +1,22 @@ +--- a/arch/mips/Makefile ++++ b/arch/mips/Makefile +@@ -158,6 +158,7 @@ + # + libs-$(CONFIG_ARC) += arch/mips/fw/arc/ + libs-$(CONFIG_CFE) += arch/mips/fw/cfe/ ++libs-$(CONFIG_MYLOADER) += arch/mips/fw/myloader/ + libs-$(CONFIG_SNIPROM) += arch/mips/fw/sni/ + libs-y += arch/mips/fw/lib/ + libs-$(CONFIG_SIBYTE_CFE) += arch/mips/sibyte/cfe/ +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -781,6 +781,9 @@ + config MIPS_DISABLE_OBSOLETE_IDE + bool + ++config MYLOADER ++ bool ++ + config SYNC_R4K + bool + diff --git a/target/linux/ar71xx/patches-2.6.27/800-remove_netif_schedule.patch b/target/linux/ar71xx/patches-2.6.27/800-remove_netif_schedule.patch new file mode 100644 index 0000000..1c9e569 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/800-remove_netif_schedule.patch @@ -0,0 +1,16 @@ +--- a/drivers/net/ag71xx/ag71xx_phy.c ++++ b/drivers/net/ag71xx/ag71xx_phy.c +@@ -171,12 +171,8 @@ + } + } + +- if (phydev->link != ag->link) { +- if (phydev->link) +- netif_schedule(dev); +- ++ if (phydev->link != ag->link) + status_change = 1; +- } + + ag->link = phydev->link; + ag->duplex = phydev->duplex; diff --git a/target/linux/ar71xx/patches-2.6.27/900-mips_multi_machine_support.patch b/target/linux/ar71xx/patches-2.6.27/900-mips_multi_machine_support.patch new file mode 100644 index 0000000..df64d3f --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/900-mips_multi_machine_support.patch @@ -0,0 +1,143 @@ +--- /dev/null ++++ b/include/asm-mips/mips_machine.h +@@ -0,0 +1,49 @@ ++/* ++ * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published ++ * by the Free Software Foundation. ++ * ++ */ ++ ++#ifndef __ASM_MIPS_MACHINE_H ++#define __ASM_MIPS_MACHINE_H ++ ++#include <linux/init.h> ++#include <linux/list.h> ++ ++#include <asm/bootinfo.h> ++ ++#define MIPS_MACHINE_NAME_LEN 64 ++ ++struct mips_machine { ++ unsigned long mach_type; ++ void (*mach_setup)(void); ++ unsigned char mach_name[MIPS_MACHINE_NAME_LEN]; ++ struct list_head list; ++}; ++ ++void mips_machine_register(struct mips_machine *) __init; ++void mips_machine_setup(void) __init; ++ ++extern unsigned char mips_machine_name[MIPS_MACHINE_NAME_LEN]; ++ ++#define MIPS_MACHINE(_type, _name, _setup) \ ++static struct mips_machine machine_##_type __initdata = \ ++{ \ ++ .mach_type = _type, \ ++ .mach_name = _name, \ ++ .mach_setup = _setup, \ ++}; \ ++ \ ++static int __init register_machine_##_type(void) \ ++{ \ ++ mips_machine_register(&machine_##_type); \ ++ return 0; \ ++} \ ++ \ ++pure_initcall(register_machine_##_type) ++ ++#endif /* __ASM_MIPS_MACHINE_H */ ++ +--- /dev/null ++++ b/arch/mips/kernel/mips_machine.c +@@ -0,0 +1,58 @@ ++/* ++ * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published ++ * by the Free Software Foundation. ++ * ++ */ ++ ++#include <asm/mips_machine.h> ++#include <asm/bootinfo.h> ++ ++static struct list_head mips_machines __initdata = ++ LIST_HEAD_INIT(mips_machines); ++ ++unsigned char mips_machine_name[MIPS_MACHINE_NAME_LEN] = "Unknown"; ++ ++static struct mips_machine * __init mips_machine_find(unsigned long machtype) ++{ ++ struct list_head *this; ++ ++ list_for_each(this, &mips_machines) { ++ struct mips_machine *mach; ++ ++ mach = list_entry(this, struct mips_machine, list); ++ if (mach->mach_type == machtype) ++ return mach; ++ } ++ ++ return NULL; ++} ++ ++void __init mips_machine_register(struct mips_machine *mach) ++{ ++ list_add_tail(&mach->list, &mips_machines); ++} ++ ++void __init mips_machine_setup(void) ++{ ++ struct mips_machine *mach; ++ ++ mach = mips_machine_find(mips_machtype); ++ if (!mach) { ++ printk(KERN_ALERT "MIPS: no machine registered for " ++ "machtype %lu\n", mips_machtype); ++ return; ++ } ++ ++ if (mach->mach_name[0]) ++ strncpy(mips_machine_name, mach->mach_name, ++ MIPS_MACHINE_NAME_LEN); ++ ++ printk(KERN_INFO "MIPS: machine is %s\n", mips_machine_name); ++ ++ if (mach->mach_setup) ++ mach->mach_setup(); ++} ++ +--- a/arch/mips/kernel/Makefile ++++ b/arch/mips/kernel/Makefile +@@ -82,6 +82,7 @@ + + obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o + obj-$(CONFIG_EARLY_PRINTK) += early_printk.o ++obj-$(CONFIG_MIPS_MACHINE) += mips_machine.o + + CFLAGS_cpu-bugs64.o = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi) + +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -614,6 +614,7 @@ + + endchoice + ++source "arch/mips/ar71xx/Kconfig" + source "arch/mips/au1000/Kconfig" + source "arch/mips/basler/excite/Kconfig" + source "arch/mips/jazz/Kconfig" +@@ -787,6 +788,9 @@ + config SYNC_R4K + bool + ++config MIPS_MACHINE ++ def_bool n ++ + config NO_IOPORT + def_bool n + diff --git a/target/linux/ar71xx/patches-2.6.27/901-get_c0_compare_irq_function.patch b/target/linux/ar71xx/patches-2.6.27/901-get_c0_compare_irq_function.patch new file mode 100644 index 0000000..52044c9 --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/901-get_c0_compare_irq_function.patch @@ -0,0 +1,29 @@ +--- a/arch/mips/kernel/traps.c ++++ b/arch/mips/kernel/traps.c +@@ -45,6 +45,7 @@ + #include <asm/mmu_context.h> + #include <asm/types.h> + #include <asm/stacktrace.h> ++#include <asm/time.h> + + extern void check_wait(void); + extern asmlinkage void r4k_wait(void); +@@ -1482,6 +1483,8 @@ + */ + if (cpu_has_mips_r2) { + cp0_compare_irq = (read_c0_intctl() >> 29) & 7; ++ if (get_c0_compare_irq) ++ cp0_compare_irq = get_c0_compare_irq(); + cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7; + if (cp0_perfcount_irq == cp0_compare_irq) + cp0_perfcount_irq = -1; +--- a/include/asm-mips/time.h ++++ b/include/asm-mips/time.h +@@ -53,6 +53,7 @@ + #ifdef CONFIG_CEVT_R4K + extern int mips_clockevent_init(void); + extern unsigned int __weak get_c0_compare_int(void); ++extern unsigned int __weak get_c0_compare_irq(void); + #else + static inline int mips_clockevent_init(void) + { diff --git a/target/linux/ar71xx/patches-2.6.27/902-mips_clocksource_init_war.patch b/target/linux/ar71xx/patches-2.6.27/902-mips_clocksource_init_war.patch new file mode 100644 index 0000000..bdf0d0f --- /dev/null +++ b/target/linux/ar71xx/patches-2.6.27/902-mips_clocksource_init_war.patch @@ -0,0 +1,65 @@ +--- a/arch/mips/kernel/cevt-r4k.c ++++ b/arch/mips/kernel/cevt-r4k.c +@@ -13,6 +13,22 @@ + #include <asm/smtc_ipi.h> + #include <asm/time.h> + ++/* ++ * Compare interrupt can be routed and latched outside the core, ++ * so a single execution hazard barrier may not be enough to give ++ * it time to clear as seen in the Cause register. 4 time the ++ * pipeline depth seems reasonably conservative, and empirically ++ * works better in configurations with high CPU/bus clock ratios. ++ */ ++ ++#define compare_change_hazard() \ ++ do { \ ++ irq_disable_hazard(); \ ++ irq_disable_hazard(); \ ++ irq_disable_hazard(); \ ++ irq_disable_hazard(); \ ++ } while (0) ++ + static int mips_next_event(unsigned long delta, + struct clock_event_device *evt) + { +@@ -28,6 +44,7 @@ + cnt = read_c0_count(); + cnt += delta; + write_c0_compare(cnt); ++ compare_change_hazard(); + res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0; + #ifdef CONFIG_MIPS_MT_SMTC + evpe(vpflags); +@@ -187,7 +204,7 @@ + */ + if (c0_compare_int_pending()) { + write_c0_compare(read_c0_count()); +- irq_disable_hazard(); ++ compare_change_hazard(); + if (c0_compare_int_pending()) + return 0; + } +@@ -196,7 +213,7 @@ + cnt = read_c0_count(); + cnt += delta; + write_c0_compare(cnt); +- irq_disable_hazard(); ++ compare_change_hazard(); + if ((int)(read_c0_count() - cnt) < 0) + break; + /* increase delta if the timer was already expired */ +@@ -205,11 +222,12 @@ + while ((int)(read_c0_count() - cnt) <= 0) + ; /* Wait for expiry */ + ++ compare_change_hazard(); + if (!c0_compare_int_pending()) + return 0; + + write_c0_compare(read_c0_count()); +- irq_disable_hazard(); ++ compare_change_hazard(); + if (c0_compare_int_pending()) + return 0; + |