diff options
Diffstat (limited to 'src/southbridge/intel')
| -rw-r--r-- | src/southbridge/intel/i82801gx/acpi/globalnvs.asl | 4 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801gx/lpc.c | 24 | ||||
| -rw-r--r-- | src/southbridge/intel/i82801gx/nvs.h | 2 |
3 files changed, 28 insertions, 2 deletions
diff --git a/src/southbridge/intel/i82801gx/acpi/globalnvs.asl b/src/southbridge/intel/i82801gx/acpi/globalnvs.asl index 0384376417..027391c75d 100644 --- a/src/southbridge/intel/i82801gx/acpi/globalnvs.asl +++ b/src/southbridge/intel/i82801gx/acpi/globalnvs.asl @@ -30,8 +30,8 @@ Name(\DSEN, 1) // Display Output Switching Enable * we have to fix it up in coreboot's ACPI creation phase. */ - -OperationRegion (GNVS, SystemMemory, 0xC0DEBABE, 0x100) +External(NVSA) +OperationRegion (GNVS, SystemMemory, NVSA, 0x100) Field (GNVS, ByteAcc, NoLock, Preserve) { /* Miscellaneous */ diff --git a/src/southbridge/intel/i82801gx/lpc.c b/src/southbridge/intel/i82801gx/lpc.c index b20833990a..279bea61e4 100644 --- a/src/southbridge/intel/i82801gx/lpc.c +++ b/src/southbridge/intel/i82801gx/lpc.c @@ -31,6 +31,10 @@ #include <cpu/cpu.h> #include "i82801gx.h" #include <cpu/x86/smm.h> +#include <arch/acpigen.h> +#include <cbmem.h> +#include <string.h> +#include "nvs.h" #define NMI_OFF 0 @@ -488,6 +492,24 @@ static void set_subsystem(device_t dev, unsigned vendor, unsigned device) } } +static void southbridge_inject_dsdt(void) +{ + global_nvs_t *gnvs = cbmem_add (CBMEM_ID_ACPI_GNVS, sizeof (*gnvs)); + + if (gnvs) { + int scopelen; + memset(gnvs, 0, sizeof(*gnvs)); + acpi_create_gnvs(gnvs); + /* And tell SMI about it */ + smm_setup_structures(gnvs, NULL, NULL); + + /* Add it to SSDT. */ + scopelen = acpigen_write_scope("\\"); + scopelen += acpigen_write_name_dword("NVSA", (u32) gnvs); + acpigen_patch_len(scopelen - 1); + } +} + static struct pci_operations pci_ops = { .set_subsystem = set_subsystem, }; @@ -496,6 +518,8 @@ static struct device_operations device_ops = { .read_resources = i82801gx_lpc_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, + .acpi_inject_dsdt_generator = southbridge_inject_dsdt, + .write_acpi_tables = acpi_write_hpet, .init = lpc_init, .scan_bus = scan_static_bus, .enable = i82801gx_enable, diff --git a/src/southbridge/intel/i82801gx/nvs.h b/src/southbridge/intel/i82801gx/nvs.h index 14f0ad36c1..cf4065c63f 100644 --- a/src/southbridge/intel/i82801gx/nvs.h +++ b/src/southbridge/intel/i82801gx/nvs.h @@ -135,3 +135,5 @@ typedef struct { u8 bten; u8 rsvd13[14]; } __attribute__((packed)) global_nvs_t; + +void acpi_create_gnvs(global_nvs_t *gnvs); |