diff options
Diffstat (limited to 'src/northbridge/intel/haswell/bootblock.c')
| -rw-r--r-- | src/northbridge/intel/haswell/bootblock.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/src/northbridge/intel/haswell/bootblock.c b/src/northbridge/intel/haswell/bootblock.c index 04fec6fe65..903c770d9d 100644 --- a/src/northbridge/intel/haswell/bootblock.c +++ b/src/northbridge/intel/haswell/bootblock.c @@ -20,19 +20,17 @@ void bootblock_early_northbridge_init(void) uint32_t reg; /* - * The "io" variant of the config access is explicitly used to - * setup the PCIEXBAR because CONFIG_MMCONF_SUPPORT is set to - * to true. That way all subsequent non-explicit config accesses use - * MCFG. This code also assumes that bootblock_northbridge_init() is - * the first thing called in the non-asm boot block code. The final - * assumption is that no assembly code is using the - * CONFIG_MMCONF_SUPPORT option to do PCI config acceses. + * The "io" variant of the config access is explicitly used to setup the PCIEXBAR + * because CONFIG_MMCONF_SUPPORT is set to true. That way, all subsequent + * non-explicit config accesses use MCFG. This code also assumes that + * bootblock_northbridge_init() is the first thing called in the non-asm + * boot block code. The final assumption is that no assembly code is using + * the CONFIG_MMCONF_SUPPORT option to do PCI config acceses. * - * The PCIEXBAR is assumed to live in the memory mapped IO space under - * 4GiB. + * The PCIEXBAR is assumed to live in the memory mapped IO space under 4GiB. */ reg = 0; - pci_io_write_config32(PCI_DEV(0, 0, 0), PCIEXBAR + 4, reg); + pci_io_write_config32(HOST_BRIDGE, PCIEXBAR + 4, reg); reg = CONFIG_MMCONF_BASE_ADDRESS | 4 | 1; /* 64MiB - 0-63 buses. */ - pci_io_write_config32(PCI_DEV(0, 0, 0), PCIEXBAR, reg); + pci_io_write_config32(HOST_BRIDGE, PCIEXBAR, reg); } |