diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2013-11-06 10:58:46 -0800 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-05-06 17:17:17 +0200 |
| commit | 8de0ca435e7cee39cd5b7523aea4c7c59d1113d8 (patch) | |
| tree | 7803709d91591af265e883814a0caf836698c4fc /src/mainboard/google/rambi/mainboard.c | |
| parent | 6e3289372c598e3e0702f44e52c04d689172b156 (diff) | |
rambi: Fix eDP panel functionality
For some mysterious reason GPIO_S0_NC22 is making the eDP panel
go entirely white when it is configured with internal pullup.
Since these (supposedly XDP related) pins are unknown functionality
lets set them to GPIO_DEFAULT instead of GPIO_NC.
Additionally the VBIOS is being changed to issue int15 callback
to determine the boot graphics device. If we list both LFP and EFP
then the dev/rec screens will show on the panel when HDMI is not
attached and otherwise will display on HDMI.
BUG=chrome-os-partner:23507
BRANCH=rambi
TEST=build and boot on rambi, see firmware/kernel screens on the panel
when HDMI is not attached, and firmware screens on the panel and
kernel screens on both when HDMI is attached.
Change-Id: Ieb05a591d63c4f8e09fa154eeb76004d32579508
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175952
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4944
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Diffstat (limited to 'src/mainboard/google/rambi/mainboard.c')
| -rw-r--r-- | src/mainboard/google/rambi/mainboard.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/rambi/mainboard.c b/src/mainboard/google/rambi/mainboard.c index 8c5b66608b..4ef8a9f022 100644 --- a/src/mainboard/google/rambi/mainboard.c +++ b/src/mainboard/google/rambi/mainboard.c @@ -75,7 +75,7 @@ static int int15_handler(void) * bit 7 = LFP2 */ X86_AX = 0x005f; - X86_CX = 0x0000; + X86_CX = 0x0006; res = 1; break; case 0x5f51: |