diff options
Diffstat (limited to 'src/northbridge/intel/sandybridge')
| -rw-r--r-- | src/northbridge/intel/sandybridge/chip.h | 5 | ||||
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit.c | 21 |
2 files changed, 25 insertions, 1 deletions
diff --git a/src/northbridge/intel/sandybridge/chip.h b/src/northbridge/intel/sandybridge/chip.h index 5effc0da95..d002824287 100644 --- a/src/northbridge/intel/sandybridge/chip.h +++ b/src/northbridge/intel/sandybridge/chip.h @@ -47,6 +47,11 @@ struct northbridge_intel_sandybridge_config { u16 max_mem_clock_mhz; struct i915_gpu_controller_info gfx; + + /* + * Maximum PCI mmio size in MiB. + */ + u16 pci_mmio_size; }; #endif /* NORTHBRIDGE_INTEL_SANDYBRIDGE_CHIP_H */ diff --git a/src/northbridge/intel/sandybridge/raminit.c b/src/northbridge/intel/sandybridge/raminit.c index 6bb77b2c6a..4563547c79 100644 --- a/src/northbridge/intel/sandybridge/raminit.c +++ b/src/northbridge/intel/sandybridge/raminit.c @@ -204,6 +204,7 @@ typedef struct ramctr_timing_st { #define GET_ERR_CHANNEL(x) (x>>16) static void program_timings(ramctr_timing * ctrl, int channel); +static unsigned int get_mmio_size(void); static const char *ecc_decoder[] = { "inactive", @@ -1086,7 +1087,7 @@ static void dram_memorymap(ramctr_timing * ctrl, int me_uma_size) size_t tsegbasedelta, remapbase, remaplimit; uint16_t ggc; - mmiosize = 0x400; + mmiosize = get_mmio_size(); ggc = pci_read_config16(NORTHBRIDGE, GGC); if (!(ggc & 2)) { @@ -4384,6 +4385,24 @@ static unsigned int get_mem_min_tck(void) } } +#define DEFAULT_PCI_MMIO_SIZE 2048 + +static unsigned int get_mmio_size(void) +{ + const struct device *dev; + const struct northbridge_intel_sandybridge_config *cfg = NULL; + + dev = dev_find_slot(0, HOST_BRIDGE); + if (dev) + cfg = dev->chip_info; + + /* If this is zero, it just means devicetree.cb didn't set it */ + if (!cfg || cfg->pci_mmio_size == 0) + return DEFAULT_PCI_MMIO_SIZE; + else + return cfg->pci_mmio_size; +} + void perform_raminit(int s3resume) { spd_raw_data spd[4]; |