diff options
Diffstat (limited to 'arch/x86/cpu')
-rw-r--r-- | arch/x86/cpu/pci.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/x86/cpu/pci.c b/arch/x86/cpu/pci.c index 2d8f16c..e399388 100644 --- a/arch/x86/cpu/pci.c +++ b/arch/x86/cpu/pci.c @@ -46,3 +46,53 @@ void pci_init_board(void) hose->last_busno = pci_hose_scan(hose); } + +static struct pci_controller *get_hose(void) +{ + if (gd->arch.hose) + return gd->arch.hose; + + return pci_bus_to_hose(0); +} + +unsigned int pci_read_config8(pci_dev_t dev, unsigned where) +{ + uint8_t value; + + pci_hose_read_config_byte(get_hose(), dev, where, &value); + + return value; +} + +unsigned int pci_read_config16(pci_dev_t dev, unsigned where) +{ + uint16_t value; + + pci_hose_read_config_word(get_hose(), dev, where, &value); + + return value; +} + +unsigned int pci_read_config32(pci_dev_t dev, unsigned where) +{ + uint32_t value; + + pci_hose_read_config_dword(get_hose(), dev, where, &value); + + return value; +} + +void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value) +{ + pci_hose_write_config_byte(get_hose(), dev, where, value); +} + +void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value) +{ + pci_hose_write_config_word(get_hose(), dev, where, value); +} + +void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value) +{ + pci_hose_write_config_dword(get_hose(), dev, where, value); +} |