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Diffstat (limited to 'src/northbridge/intel/sandybridge/gma_ivybridge_lvds.c')
-rw-r--r--src/northbridge/intel/sandybridge/gma_ivybridge_lvds.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/src/northbridge/intel/sandybridge/gma_ivybridge_lvds.c b/src/northbridge/intel/sandybridge/gma_ivybridge_lvds.c
index 6c1295a73..8fa780f5e 100644
--- a/src/northbridge/intel/sandybridge/gma_ivybridge_lvds.c
+++ b/src/northbridge/intel/sandybridge/gma_ivybridge_lvds.c
@@ -206,6 +206,7 @@ int i915lightup_sandy(const struct i915_gpu_controller_info *info,
enable_port(mmio);
intel_gmbus_read_edid(mmio + PCH_GMBUS0, 3, 0x50, edid_data, 128);
+ intel_gmbus_stop(mmio + PCH_GMBUS0);
decode_edid(edid_data,
sizeof(edid_data), &edid);
@@ -236,9 +237,8 @@ int i915lightup_sandy(const struct i915_gpu_controller_info *info,
u32 pixel_m1 = 1;
u32 pixel_m2 = 1;
-#if !IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)
vga_textmode_init();
-#else
+#if IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)
vga_sr_write(1, 1);
vga_sr_write(0x2, 0xf);
vga_sr_write(0x3, 0x0);
@@ -513,6 +513,13 @@ int i915lightup_sandy(const struct i915_gpu_controller_info *info,
set_vbe_mode_info_valid(&edid, lfb);
#endif
+ /* Doesn't change any hw behaviour but vga oprom expects it there. */
+ write32(mmio + 0x0004f040, 0x01000008);
+ write32(mmio + 0x0004f044, 0x00001800);
+ write32(mmio + 0x0004f04c, 0x7f7f0000);
+ write32(mmio + 0x0004f054, 0x0000422d);
+ write32(mmio + 0x0004f05c, 0x00000008);
+
/* Linux relies on VBT for panel info. */
generate_fake_intel_oprom(info, dev_find_slot(0, PCI_DEVFN(2, 0)),
"$VBT SNB/IVB-MOBILE ");