diff options
Diffstat (limited to 'src/northbridge')
-rw-r--r-- | src/northbridge/intel/sandybridge/northbridge.c | 28 | ||||
-rw-r--r-- | src/northbridge/intel/sandybridge/sandybridge.h | 11 |
2 files changed, 28 insertions, 11 deletions
diff --git a/src/northbridge/intel/sandybridge/northbridge.c b/src/northbridge/intel/sandybridge/northbridge.c index 7d257f6fe3..0e0ba00cf1 100644 --- a/src/northbridge/intel/sandybridge/northbridge.c +++ b/src/northbridge/intel/sandybridge/northbridge.c @@ -36,6 +36,7 @@ #include <cbmem.h> #include "chip.h" #include "sandybridge.h" +#include <cpu/intel/smm/gen1/smi.h> static int bridge_revision_id = -1; @@ -432,6 +433,33 @@ static void northbridge_enable(device_t dev) #endif } +static u32 northbridge_get_base_reg(device_t dev, int reg) +{ + u32 value; + + value = pci_read_config32(dev, reg); + /* Base registers are at 1MiB granularity. */ + value &= ~((1 << 20) - 1); + return value; +} + +void +northbridge_get_tseg_base_and_size(u32 *tsegmb, u32 *tseg_size) +{ + device_t dev; + u32 bgsm; + dev = dev_find_slot(0, PCI_DEVFN(0, 0)); + + *tsegmb = northbridge_get_base_reg(dev, TSEG); + bgsm = northbridge_get_base_reg(dev, BGSM); + *tseg_size = bgsm - *tsegmb; +} + +void northbridge_write_smram(u8 smram) +{ + pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM, smram); +} + static struct pci_operations intel_pci_ops = { .set_subsystem = intel_set_subsystem, }; diff --git a/src/northbridge/intel/sandybridge/sandybridge.h b/src/northbridge/intel/sandybridge/sandybridge.h index 09894f71e4..6f8fcfc6bb 100644 --- a/src/northbridge/intel/sandybridge/sandybridge.h +++ b/src/northbridge/intel/sandybridge/sandybridge.h @@ -91,11 +91,6 @@ #define LAC 0x87 /* Legacy Access Control */ #define SMRAM 0x88 /* System Management RAM Control */ -#define D_OPEN (1 << 6) -#define D_CLS (1 << 5) -#define D_LCK (1 << 4) -#define G_SMRAME (1 << 3) -#define C_BASE_SEG ((0 << 2) | (1 << 1) | (0 << 0)) #define TOM 0xa0 #define TOUUD 0xa8 /* Top of Upper Usable DRAM */ @@ -200,12 +195,6 @@ #ifndef __ASSEMBLER__ static inline void barrier(void) { asm("" ::: "memory"); } -struct ied_header { - char signature[10]; - u32 size; - u8 reserved[34]; -} __attribute__ ((packed)); - #define PCI_DEVICE_ID_SB 0x0104 #define PCI_DEVICE_ID_IB 0x0154 |