diff options
Diffstat (limited to 'src/northbridge/intel/gm45/gma.c')
| -rw-r--r-- | src/northbridge/intel/gm45/gma.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/src/northbridge/intel/gm45/gma.c b/src/northbridge/intel/gm45/gma.c index 606170ce73..5335fbb077 100644 --- a/src/northbridge/intel/gm45/gma.c +++ b/src/northbridge/intel/gm45/gma.c @@ -771,11 +771,18 @@ static void gma_func0_init(struct device *dev) /* Post VBIOS init */ gma_pm_init_post_vbios(dev, edid_lvds.ascii_string); - if (IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT)) { - gma_ngi(dev, &edid_lvds); - } else if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) { - int lightup_ok; - gma_gfxinit(&lightup_ok); + int vga_disable = (pci_read_config16(dev, D0F0_GGC) & 2) >> 1; + + if (vga_disable) { + printk(BIOS_INFO, + "IGD is not decoding legacy VGA MEM and IO: skipping NATIVE graphic init\n"); + } else { + if (IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT)) { + gma_ngi(dev, &edid_lvds); + } else if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) { + int lightup_ok; + gma_gfxinit(&lightup_ok); + } } intel_gma_restore_opregion(); |