diff options
| -rw-r--r-- | src/northbridge/intel/fsp_sandybridge/Kconfig | 8 | ||||
| -rw-r--r-- | src/northbridge/intel/fsp_sandybridge/bootblock.c | 26 | ||||
| -rw-r--r-- | src/northbridge/intel/fsp_sandybridge/early_init.c | 2 |
3 files changed, 32 insertions, 4 deletions
diff --git a/src/northbridge/intel/fsp_sandybridge/Kconfig b/src/northbridge/intel/fsp_sandybridge/Kconfig index c6d46d11a7..96b2df52ec 100644 --- a/src/northbridge/intel/fsp_sandybridge/Kconfig +++ b/src/northbridge/intel/fsp_sandybridge/Kconfig @@ -18,16 +18,20 @@ config NORTHBRIDGE_INTEL_FSP_SANDYBRIDGE bool select CPU_INTEL_FSP_MODEL_206AX select INTEL_GMA_ACPI - select MMCONF_SUPPORT + select MMCONF_SUPPORT_DEFAULT config NORTHBRIDGE_INTEL_FSP_IVYBRIDGE bool select CPU_INTEL_FSP_MODEL_306AX select INTEL_GMA_ACPI - select MMCONF_SUPPORT + select MMCONF_SUPPORT_DEFAULT if NORTHBRIDGE_INTEL_FSP_IVYBRIDGE || NORTHBRIDGE_INTEL_FSP_SANDYBRIDGE +config BOOTBLOCK_NORTHBRIDGE_INIT + string + default "northbridge/intel/fsp_sandybridge/bootblock.c" + config VGA_BIOS_ID string default "8086,0106" diff --git a/src/northbridge/intel/fsp_sandybridge/bootblock.c b/src/northbridge/intel/fsp_sandybridge/bootblock.c new file mode 100644 index 0000000000..1c1d49214b --- /dev/null +++ b/src/northbridge/intel/fsp_sandybridge/bootblock.c @@ -0,0 +1,26 @@ +#include <arch/io.h> + +/* Just re-define this instead of including sandybridge.h. It blows up romcc. */ +#define PCIEXBAR 0x60 + +static void bootblock_northbridge_init(void) +{ + uint32_t reg; + + /* + * The "io" variant of the config access is explicitly used to + * setup the PCIEXBAR because CONFIG_MMCONF_SUPPORT_DEFAULT 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_DEFAULT option to do PCI config acceses. + * + * 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); + reg = CONFIG_MMCONF_BASE_ADDRESS | 4 | 1; /* 64MiB - 0-63 buses. */ + pci_io_write_config32(PCI_DEV(0,0,0), PCIEXBAR, reg); +} diff --git a/src/northbridge/intel/fsp_sandybridge/early_init.c b/src/northbridge/intel/fsp_sandybridge/early_init.c index 5ac1ac6304..5071def9a2 100644 --- a/src/northbridge/intel/fsp_sandybridge/early_init.c +++ b/src/northbridge/intel/fsp_sandybridge/early_init.c @@ -30,8 +30,6 @@ static void sandybridge_setup_bars(void) pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR + 4, (0LL+DEFAULT_EPBAR) >> 32); pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR, (uintptr_t)DEFAULT_MCHBAR | 1); pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR + 4, (0LL+(uintptr_t)DEFAULT_MCHBAR) >> 32); - pci_write_config32(PCI_DEV(0, 0x00, 0), PCIEXBAR, DEFAULT_PCIEXBAR | 5); /* 64MB - busses 0-63 */ - pci_write_config32(PCI_DEV(0, 0x00, 0), PCIEXBAR + 4, (0LL+DEFAULT_PCIEXBAR) >> 32); pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR, (uintptr_t)DEFAULT_DMIBAR | 1); pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR + 4, (0LL+(uintptr_t)DEFAULT_DMIBAR) >> 32); |