diff options
Diffstat (limited to 'target/linux/amazon/files')
| -rw-r--r-- | target/linux/amazon/files/arch/mips/amazon/pci.c | 57 |
1 files changed, 25 insertions, 32 deletions
diff --git a/target/linux/amazon/files/arch/mips/amazon/pci.c b/target/linux/amazon/files/arch/mips/amazon/pci.c index ab305a983..a5596c80d 100644 --- a/target/linux/amazon/files/arch/mips/amazon/pci.c +++ b/target/linux/amazon/files/arch/mips/amazon/pci.c @@ -95,7 +95,7 @@ static int amazon_pci_config_access(unsigned char access_type, /* Amazon support slot from 0 to 15 */ /* devfn 0 & 0x20 is itself */ - if ((bus != 0) || (devfn == 0) || (devfn == 0x20)) + if ((bus->number != 0) || (devfn == 0) || (devfn == 0x20)) return 1; pci_addr=AMAZON_PCI_CFG_BASE | @@ -124,49 +124,42 @@ static int amazon_pci_config_access(unsigned char access_type, static int amazon_pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) { u32 data = 0; - int ret = PCIBIOS_SUCCESSFUL; - if (amazon_pci_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) { - data = ~0; - ret = -1; - } + if (amazon_pci_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; - switch (size) { - case 1: - *((u8 *) val) = (data >> ((where & 3) << 3)) & 0xff; - break; - case 2: - *((u16 *) val) = (data >> ((where & 3) << 3)) & 0xffff; - break; - case 4: - *val = data; - break; - default: - return -1; - } + if (size == 1) + *val = (data >> ((where & 3) << 3)) & 0xff; + else if (size == 2) + *val = (data >> ((where & 3) << 3)) & 0xffff; + else + *val = data; - return ret; + return PCIBIOS_SUCCESSFUL; } static int amazon_pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) { - if (size != 4) { - u32 data; + u32 data = 0; + if (size == 4) + { + data = val; + } else { if (amazon_pci_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) - return -1; + return PCIBIOS_DEVICE_NOT_FOUND; if (size == 1) - val = (data & ~(0xff << ((where & 3) << 3))) | (val << ((where & 3) << 3)); + data = (data & ~(0xff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); else if (size == 2) - val = (data & ~(0xffff << ((where & 3) << 3))) | (val << ((where & 3) << 3)); - else - return -1; + data = (data & ~(0xffff << ((where & 3) << 3))) | + (val << ((where & 3) << 3)); } - if (amazon_pci_config_access(PCI_ACCESS_WRITE, bus, devfn, where, &val)) - return -1; + if (amazon_pci_config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data)) + return PCIBIOS_DEVICE_NOT_FOUND; return PCIBIOS_SUCCESSFUL; } @@ -182,7 +175,7 @@ static struct pci_controller amazon_pci_controller = { .io_resource = &pci_io_resource }; -int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { switch (slot) { case 13: @@ -240,7 +233,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev) return 0; } -int amazon_pci_init(void) +int __init amazon_pci_init(void) { u32 temp_buffer; @@ -286,7 +279,7 @@ int amazon_pci_init(void) //use 8 dw burse length AMAZON_PCI_REG32(FPI_BURST_LENGTH) = 0x303; - set_io_port_base(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); register_pci_controller(&amazon_pci_controller); return 0; } |