diff options
Diffstat (limited to 'src/northbridge/amd/amdk8/f_pci.c')
| -rw-r--r-- | src/northbridge/amd/amdk8/f_pci.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/northbridge/amd/amdk8/f_pci.c b/src/northbridge/amd/amdk8/f_pci.c new file mode 100644 index 0000000000..d89dadc0d6 --- /dev/null +++ b/src/northbridge/amd/amdk8/f_pci.c @@ -0,0 +1,54 @@ +#ifndef AMDK8_F_PCI_C +#define AMDK8_F_PCI_C + +#ifdef UNUSED_CODE +/* bit [10,8] are dev func, bit[1,0] are dev index */ +static uint32_t pci_read_config32_index(device_t dev, uint32_t index_reg, uint32_t index) +{ + uint32_t dword; + + pci_write_config32(dev, index_reg, index); + + dword = pci_read_config32(dev, index_reg+0x4); + + return dword; +} + +static void pci_write_config32_index(device_t dev, uint32_t index_reg, uint32_t index, uint32_t data) +{ + pci_write_config32(dev, index_reg, index); + + pci_write_config32(dev, index_reg + 0x4, data); +} +#endif + +static uint32_t pci_read_config32_index_wait(device_t dev, uint32_t index_reg, uint32_t index) +{ + uint32_t dword; + + index &= ~(1<<30); + pci_write_config32(dev, index_reg, index); + + do { + dword = pci_read_config32(dev, index_reg); + } while (!(dword & (1<<31))); + + dword = pci_read_config32(dev, index_reg+0x4); + + return dword; +} + +static void pci_write_config32_index_wait(device_t dev, uint32_t index_reg, uint32_t index, uint32_t data) +{ + uint32_t dword; + + pci_write_config32(dev, index_reg + 0x4, data); + + index |= (1<<30); + pci_write_config32(dev, index_reg, index); + do { + dword = pci_read_config32(dev, index_reg); + } while (!(dword & (1<<31))); +} + +#endif |