diff options
| author | Audrey Pearson <apearson@raptorengineeringinc.com> | 2015-09-29 12:36:52 -0500 |
|---|---|---|
| committer | Alexandru Gagniuc <mr.nuke.me@gmail.com> | 2015-10-01 06:29:04 +0000 |
| commit | bd0dab2b267e308e1882b51ecda7b19f8c895201 (patch) | |
| tree | e28d98b38e3588df44f6d503bbe68dcbc1b43bd3 /src | |
| parent | 16fa8823f8289b74f575243cea277dc8743fd024 (diff) | |
northbridge/intel/gm45: Fix native VGA init
Building an image for the Lenovo X200 with native graphics
initialization selected fails due to the changes introduced
by commit a3b898aa (edid: Clean-up the edid struct).
Change-Id: Ifd36571c9c00761b4a2a6deb3c9c4a52d9d13e25
Signed-off-by: Audrey Pearson <apearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11738
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/northbridge/intel/gm45/gma.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/src/northbridge/intel/gm45/gma.c b/src/northbridge/intel/gm45/gma.c index f29b9b19f5..42b340a8b8 100644 --- a/src/northbridge/intel/gm45/gma.c +++ b/src/northbridge/intel/gm45/gma.c @@ -109,6 +109,7 @@ static void intel_gma_init(const struct northbridge_intel_gm45_config *info, int i; u8 edid_data[128]; struct edid edid; + struct edid_mode *mode; u32 hactive, vactive, right_border, bottom_border; int hpolarity, vpolarity; u32 vsync, hsync, vblank, hblank, hfront_porch, vfront_porch; @@ -155,25 +156,26 @@ static void intel_gma_init(const struct northbridge_intel_gm45_config *info, intel_gmbus_read_edid(mmio + GMBUS0, 3, 0x50, edid_data, 128); decode_edid(edid_data, sizeof(edid_data), &edid); + mode = &edid.mode; /* Disable screen memory to prevent garbage from appearing. */ vga_sr_write(1, vga_sr_read(1) | 0x20); hactive = edid.x_resolution; vactive = edid.y_resolution; - right_border = edid.hborder; - bottom_border = edid.vborder; - hpolarity = (edid.phsync == '-'); - vpolarity = (edid.pvsync == '-'); - vsync = edid.vspw; - hsync = edid.hspw; - vblank = edid.vbl; - hblank = edid.hbl; - hfront_porch = edid.hso; - vfront_porch = edid.vso; - - target_frequency = info->gfx.lvds_dual_channel ? edid.pixel_clock - : (2 * edid.pixel_clock); + right_border = mode->hborder; + bottom_border = mode->vborder; + hpolarity = (mode->phsync == '-'); + vpolarity = (mode->pvsync == '-'); + vsync = mode->vspw; + hsync = mode->hspw; + vblank = mode->vbl; + hblank = mode->hbl; + hfront_porch = mode->hso; + vfront_porch = mode->vso; + + target_frequency = info->gfx.lvds_dual_channel ? mode->pixel_clock + : (2 * mode->pixel_clock); #if IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE) vga_sr_write(1, 1); vga_sr_write(0x2, 0xf); @@ -240,8 +242,8 @@ static void intel_gma_init(const struct northbridge_intel_gm45_config *info, return; } - link_m1 = ((uint64_t)link_n1 * edid.pixel_clock) / link_frequency; - data_m1 = ((uint64_t)data_n1 * 18 * edid.pixel_clock) + link_m1 = ((uint64_t)link_n1 * mode->pixel_clock) / link_frequency; + data_m1 = ((uint64_t)data_n1 * 18 * mode->pixel_clock) / (link_frequency * 8 * (info->gfx.lvds_num_lanes ? : 4)); printk(BIOS_INFO, "bringing up panel at resolution %d x %d\n", |