diff options
Diffstat (limited to 'src/northbridge/intel/haswell/northbridge.c')
| -rw-r--r-- | src/northbridge/intel/haswell/northbridge.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/northbridge/intel/haswell/northbridge.c b/src/northbridge/intel/haswell/northbridge.c index a803e981e0..fcdb683320 100644 --- a/src/northbridge/intel/haswell/northbridge.c +++ b/src/northbridge/intel/haswell/northbridge.c @@ -371,13 +371,15 @@ static void mc_add_dram_resources(struct device *dev, int *resource_cnt) IORESOURCE_STORED | IORESOURCE_RESERVE | IORESOURCE_ASSIGNED | IORESOURCE_CACHEABLE; - /* BGSM -> TOLUD */ - resource = new_resource(dev, index++); - resource->base = mc_values[BGSM_REG]; - resource->size = mc_values[TOLUD_REG] - resource->base; - resource->flags = IORESOURCE_MEM | IORESOURCE_FIXED | - IORESOURCE_STORED | IORESOURCE_RESERVE | - IORESOURCE_ASSIGNED; + /* BGSM -> TOLUD. If the IGD is disabled, BGSM can equal TOLUD */ + if (mc_values[BGSM_REG] != mc_values[TOLUD_REG]) { + resource = new_resource(dev, index++); + resource->base = mc_values[BGSM_REG]; + resource->size = mc_values[TOLUD_REG] - resource->base; + resource->flags = IORESOURCE_MEM | IORESOURCE_FIXED | + IORESOURCE_STORED | IORESOURCE_RESERVE | + IORESOURCE_ASSIGNED; + } /* 4GiB -> TOUUD */ base_k = 4096 * 1024; /* 4GiB */ |