diff options
Diffstat (limited to 'target/linux/amazon/files/arch')
| -rw-r--r-- | target/linux/amazon/files/arch/mips/amazon/pci.c | 81 | ||||
| -rw-r--r-- | target/linux/amazon/files/arch/mips/amazon/setup.c | 5 |
2 files changed, 42 insertions, 44 deletions
diff --git a/target/linux/amazon/files/arch/mips/amazon/pci.c b/target/linux/amazon/files/arch/mips/amazon/pci.c index a5596c8..1b2afb9 100644 --- a/target/linux/amazon/files/arch/mips/amazon/pci.c +++ b/target/linux/amazon/files/arch/mips/amazon/pci.c @@ -36,7 +36,7 @@ #endif #define AMAZON_PCI_MEM_SIZE 0x00400000 #define AMAZON_PCI_IO_BASE 0xb2400000 -#define AMAZON_PCI_IO_SIZE 0x00002000 +#define AMAZON_PCI_IO_SIZE 0x00200000 #define AMAZON_PCI_CFG_BUSNUM_SHF 16 #define AMAZON_PCI_CFG_DEVNUM_SHF 11 @@ -45,27 +45,15 @@ #define PCI_ACCESS_READ 0 #define PCI_ACCESS_WRITE 1 -static inline u32 amazon_r32(u32 addr) -{ - u32 *ptr = (u32 *) addr; - return __raw_readl(ptr); -} - -static inline void amazon_w32(u32 addr, u32 val) -{ - u32 *ptr = (u32 *) addr; - __raw_writel(val, ptr); -} - - static struct resource pci_io_resource = { .name = "io pci IO space", -#if 0 +#if 1 .start = AMAZON_PCI_IO_BASE, .end = AMAZON_PCI_IO_BASE + AMAZON_PCI_IO_SIZE - 1, -#endif +#else .start = 0, - .end = AMAZON_PCI_IO_SIZE - 1, + .end = 0x00002000 - 1, +#endif .flags = IORESOURCE_IO }; @@ -76,15 +64,6 @@ static struct resource pci_mem_resource = { .flags = IORESOURCE_MEM }; -static inline u32 amazon_pci_swap(u32 val) -{ -#ifdef CONFIG_AMAZON_PCI_HW_SWAP - return swab32(val); -#else - return val; -#endif -} - static int amazon_pci_config_access(unsigned char access_type, struct pci_bus *bus, unsigned int devfn, unsigned int where, u32 *data) { @@ -92,31 +71,43 @@ static int amazon_pci_config_access(unsigned char access_type, u32 pci_addr; u32 val; int ret; - + /* Amazon support slot from 0 to 15 */ /* devfn 0 & 0x20 is itself */ - if ((bus->number != 0) || (devfn == 0) || (devfn == 0x20)) + if ((bus->number != 0) || (devfn > 0x7f) || (devfn == 0) || (devfn == 0x20)) return 1; - pci_addr=AMAZON_PCI_CFG_BASE | + local_irq_save(flags); + + pci_addr = AMAZON_PCI_CFG_BASE | bus->number << AMAZON_PCI_CFG_BUSNUM_SHF | devfn << AMAZON_PCI_CFG_FUNNUM_SHF | (where & ~0x3); - - local_irq_save(flags); - if (access_type == PCI_ACCESS_WRITE) { - val = amazon_pci_swap(*data); + + if (access_type == PCI_ACCESS_WRITE) + { +#ifdef CONFIG_SWAP_IO_SPACE + val = swab32(*data); +#endif ret = put_dbe(val, (u32 *)pci_addr); } else { ret = get_dbe(val, (u32 *)pci_addr); - *data = amazon_pci_swap(val); +#ifdef CONFIG_SWAP_IO_SPACE + *data = swab32(val); +#else + *data = val; +#endif } - amazon_w32(PCI_MODE, amazon_r32(PCI_MODE) & (~(1<<PCI_MODE_cfgok_bit))); - amazon_w32(STATUS_COMMAND_ADDR, amazon_r32(STATUS_COMMAND_ADDR)); - amazon_w32(PCI_MODE, amazon_r32(PCI_MODE) | (~(1<<PCI_MODE_cfgok_bit))); + amazon_writel(amazon_readl(PCI_MODE) & (~(1<<PCI_MODE_cfgok_bit)), PCI_MODE); + amazon_writel(amazon_readl(STATUS_COMMAND_ADDR), STATUS_COMMAND_ADDR); + amazon_writel(amazon_readl(PCI_MODE) | (~(1<<PCI_MODE_cfgok_bit)), PCI_MODE); + mb(); local_irq_restore(flags); + if (((*data) == 0xffffffff) && (access_type == PCI_ACCESS_READ)) + return 1; + return ret; } @@ -172,7 +163,9 @@ static struct pci_ops amazon_pci_ops = { static struct pci_controller amazon_pci_controller = { .pci_ops = &amazon_pci_ops, .mem_resource = &pci_mem_resource, - .io_resource = &pci_io_resource + .mem_offset = 0x00000000UL, + .io_resource = &pci_io_resource, + .io_offset = 0x00000000UL, }; int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) @@ -237,13 +230,13 @@ int __init amazon_pci_init(void) { u32 temp_buffer; -#ifdef CONFIG_AMAZON_PCI_HW_SWAP +#ifdef CONFIG_SWAP_IO_SPACE AMAZON_PCI_REG32(IRM) = AMAZON_PCI_REG32(IRM) | (1<<27) | (1<<28); wmb(); #endif AMAZON_PCI_REG32(CLOCK_CONTROL) = AMAZON_PCI_REG32(CLOCK_CONTROL) | (1<<ARB_CTRL_bit); - amazon_w32(PCI_MODE, amazon_r32(PCI_MODE) & (~(1<<PCI_MODE_cfgok_bit))); + amazon_writel(amazon_readl(PCI_MODE) & (~(1<<PCI_MODE_cfgok_bit)), PCI_MODE); AMAZON_PCI_REG32(STATUS_COMMAND_ADDR) = AMAZON_PCI_REG32(STATUS_COMMAND_ADDR) | (1<<BUS_MASTER_ENABLE_BIT) |(1<<MEM_SPACE_ENABLE_BIT); @@ -271,15 +264,15 @@ int __init amazon_pci_init(void) AMAZON_PCI_REG32(FPI_ADDRESS_MAP_5) = 0xb2500000; AMAZON_PCI_REG32(FPI_ADDRESS_MAP_6) = 0xb2600000; AMAZON_PCI_REG32(FPI_ADDRESS_MAP_7) = 0xb2700000; - - AMAZON_PCI_REG32(BAR11_MASK) = 0x0f000008; + + AMAZON_PCI_REG32(BAR11_MASK) = 0x0c000008; AMAZON_PCI_REG32(PCI_ADDRESS_MAP_11) = 0x0; AMAZON_PCI_REG32(BAR1_ADDR) = 0x0; - amazon_w32(PCI_MODE, amazon_r32(PCI_MODE) | (~(1<<PCI_MODE_cfgok_bit))); + amazon_writel(amazon_readl(PCI_MODE) | (~(1<<PCI_MODE_cfgok_bit)), PCI_MODE); //use 8 dw burse length AMAZON_PCI_REG32(FPI_BURST_LENGTH) = 0x303; - amazon_pci_controller.io_map_base = (unsigned long)ioremap(AMAZON_PCI_IO_BASE, AMAZON_PCI_IO_SIZE); + amazon_pci_controller.io_map_base = (unsigned long)ioremap(AMAZON_PCI_IO_BASE, AMAZON_PCI_IO_SIZE - 1); register_pci_controller(&amazon_pci_controller); return 0; } diff --git a/target/linux/amazon/files/arch/mips/amazon/setup.c b/target/linux/amazon/files/arch/mips/amazon/setup.c index a96b565..45ff254 100644 --- a/target/linux/amazon/files/arch/mips/amazon/setup.c +++ b/target/linux/amazon/files/arch/mips/amazon/setup.c @@ -155,6 +155,11 @@ void __init plat_mem_setup(void) amazon_writel(0x3fff, AMAZON_PMU_PWDCR); //reenable trace capability part_no = readl(AMAZON_BCU_ECON); + + ioport_resource.start = IOPORT_RESOURCE_START; + ioport_resource.end = IOPORT_RESOURCE_END; + iomem_resource.start = IOMEM_RESOURCE_START; + iomem_resource.end = IOMEM_RESOURCE_END; } static void amazon_machine_restart(char *command) |