diff options
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/amd/agesa/family14/Kconfig | 1 | ||||
| -rw-r--r-- | src/northbridge/amd/agesa/family14/northbridge.c | 130 |
2 files changed, 131 insertions, 0 deletions
diff --git a/src/northbridge/amd/agesa/family14/Kconfig b/src/northbridge/amd/agesa/family14/Kconfig index 971f271f2f..fef4b0aecf 100644 --- a/src/northbridge/amd/agesa/family14/Kconfig +++ b/src/northbridge/amd/agesa/family14/Kconfig @@ -19,6 +19,7 @@ config NORTHBRIDGE_AMD_AGESA_FAMILY14 bool select MMCONF_SUPPORT + select PER_DEVICE_ACPI_TABLES if NORTHBRIDGE_AMD_AGESA_FAMILY14 diff --git a/src/northbridge/amd/agesa/family14/northbridge.c b/src/northbridge/amd/agesa/family14/northbridge.c index 0ee3a8e493..f0d84b3c58 100644 --- a/src/northbridge/amd/agesa/family14/northbridge.c +++ b/src/northbridge/amd/agesa/family14/northbridge.c @@ -39,6 +39,8 @@ #if CONFIG_AMD_SB_CIMX #include <sb_cimx.h> #endif +#include <arch/acpi.h> +#include <arch/acpigen.h> //#define FX_DEVS NODE_NUMS #define FX_DEVS 1 @@ -807,10 +809,138 @@ static void cpu_bus_init(device_t dev) /* North Bridge Structures */ +static void northbridge_fill_ssdt_generator(void) +{ + msr_t msr; + char pscope[] = "\\_SB.PCI0"; + + acpigen_write_scope(pscope); + msr = rdmsr(TOP_MEM); + acpigen_write_name_dword("TOM1", msr.lo); + msr = rdmsr(TOP_MEM2); + /* + * Since XP only implements parts of ACPI 2.0, we can't use a qword + * here. + * See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt + * slide 22ff. + * Shift value right by 20 bit to make it fit into 32bit, + * giving us 1MB granularity and a limit of almost 4Exabyte of memory. + */ + acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20); + acpigen_pop_len(); +} + +unsigned long acpi_fill_hest(acpi_hest_t *hest) +{ + void *addr, *current; + + /* Skip the HEST header. */ + current = (void *)(hest + 1); + + addr = agesawrapper_getlateinitptr(PICK_WHEA_MCE); + if (addr != NULL) + current += acpi_create_hest_error_source(hest, current, 0, (void *)((u32)addr + 2), *(UINT16 *)addr - 2); + + addr = agesawrapper_getlateinitptr(PICK_WHEA_CMC); + if (addr != NULL) + current += acpi_create_hest_error_source(hest, current, 1, (void *)((u32)addr + 2), *(UINT16 *)addr - 2); + + return (unsigned long)current; +} + +static unsigned long agesa_write_acpi_tables(unsigned long current, + acpi_rsdp_t *rsdp) +{ + acpi_srat_t *srat; + acpi_slit_t *slit; + acpi_header_t *ssdt; + acpi_header_t *alib; + acpi_hest_t *hest; + + /* HEST */ + current = ALIGN(current, 8); + hest = (acpi_hest_t *)current; + acpi_write_hest((void *)current); + acpi_add_table(rsdp, (void *)current); + current += ((acpi_header_t *)current)->length; + + /* SRAT */ + current = ALIGN(current, 8); + printk(BIOS_DEBUG, "ACPI: * SRAT at %lx\n", current); + srat = (acpi_srat_t *) agesawrapper_getlateinitptr (PICK_SRAT); + if (srat != NULL) { + memcpy((void *)current, srat, srat->header.length); + srat = (acpi_srat_t *) current; + current += srat->header.length; + acpi_add_table(rsdp, srat); + } + else { + printk(BIOS_DEBUG, " AGESA SRAT table NULL. Skipping.\n"); + } + + /* SLIT */ + current = ALIGN(current, 8); + printk(BIOS_DEBUG, "ACPI: * SLIT at %lx\n", current); + slit = (acpi_slit_t *) agesawrapper_getlateinitptr (PICK_SLIT); + if (slit != NULL) { + memcpy((void *)current, slit, slit->header.length); + slit = (acpi_slit_t *) current; + current += slit->header.length; + acpi_add_table(rsdp, slit); + } + else { + printk(BIOS_DEBUG, " AGESA SLIT table NULL. Skipping.\n"); + } + + /* SSDT */ + current = ALIGN(current, 16); + printk(BIOS_DEBUG, "ACPI: * AGESA ALIB SSDT at %lx\n", current); + alib = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_ALIB); + if (alib != NULL) { + memcpy((void *)current, alib, alib->length); + alib = (acpi_header_t *) current; + current += alib->length; + acpi_add_table(rsdp, (void *)alib); + } else { + printk(BIOS_DEBUG, " AGESA ALIB SSDT table NULL. Skipping.\n"); + } + + /* The DSDT needs additional work for the AGESA SSDT Pstate table */ + /* Keep the comment for a while. */ + current = ALIGN(current, 16); + printk(BIOS_DEBUG, "ACPI: * AGESA SSDT Pstate at %lx\n", current); + ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE); + if (ssdt != NULL) { + memcpy((void *)current, ssdt, ssdt->length); + ssdt = (acpi_header_t *) current; + current += ssdt->length; + acpi_add_table(rsdp,ssdt); + } else { + printk(BIOS_DEBUG, " AGESA SSDT Pstate table NULL. Skipping.\n"); + } + + return current; +} + + +/* Implemented with AGESA-specific code. Dummy to keep linker happy. */ +unsigned long acpi_fill_slit(unsigned long current) +{ + return current; +} + +/* Implemented with AGESA-specific code. Dummy to keep linker happy. */ +unsigned long acpi_fill_srat(unsigned long current) +{ + return current; +} + static struct device_operations northbridge_operations = { .read_resources = nb_read_resources, .set_resources = nb_set_resources, .enable_resources = pci_dev_enable_resources, + .acpi_fill_ssdt_generator = northbridge_fill_ssdt_generator, + .write_acpi_tables = agesa_write_acpi_tables, .init = northbridge_init, .enable = 0,.ops_pci = 0, }; |