diff options
Diffstat (limited to 'src/northbridge/intel/sandybridge/gma.c')
| -rw-r--r-- | src/northbridge/intel/sandybridge/gma.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/northbridge/intel/sandybridge/gma.c b/src/northbridge/intel/sandybridge/gma.c index bd0de4a6d4..1f5251144b 100644 --- a/src/northbridge/intel/sandybridge/gma.c +++ b/src/northbridge/intel/sandybridge/gma.c @@ -494,6 +494,18 @@ static void gma_pm_init_pre_vbios(struct device *dev) reg32 = gtt_read(0x6c024); reg32 &= ~0x000001c0; gtt_write(0x6c024, reg32); + + /* Initialize DP buffer translation with recommended defaults */ + gtt_write(0xe4f00, 0x0100030c); + gtt_write(0xe4f04, 0x00b8230c); + gtt_write(0xe4f08, 0x06f8930c); + gtt_write(0xe4f0c, 0x05f8e38e); + gtt_write(0xe4f10, 0x00b8030c); + gtt_write(0xe4f14, 0x0b78830c); + gtt_write(0xe4f18, 0x09f8d3cf); + gtt_write(0xe4f1c, 0x01e8030c); + gtt_write(0xe4f20, 0x09f863cf); + gtt_write(0xe4f24, 0x0ff803cf); } static void gma_pm_init_post_vbios(struct device *dev) |