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authorDuncan Laurie <dlaurie@chromium.org>2013-11-06 10:58:46 -0800
committerKyösti Mälkki <kyosti.malkki@gmail.com>2014-05-06 17:17:17 +0200
commit8de0ca435e7cee39cd5b7523aea4c7c59d1113d8 (patch)
tree7803709d91591af265e883814a0caf836698c4fc /src/mainboard/google
parent6e3289372c598e3e0702f44e52c04d689172b156 (diff)
downloadcoreboot-8de0ca435e7cee39cd5b7523aea4c7c59d1113d8.tar.xz
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')
-rw-r--r--src/mainboard/google/rambi/gpio.c18
-rw-r--r--src/mainboard/google/rambi/mainboard.c2
2 files changed, 10 insertions, 10 deletions
diff --git a/src/mainboard/google/rambi/gpio.c b/src/mainboard/google/rambi/gpio.c
index d7082be26f..9919d30bd4 100644
--- a/src/mainboard/google/rambi/gpio.c
+++ b/src/mainboard/google/rambi/gpio.c
@@ -38,15 +38,15 @@ static const struct soc_gpio_map gpncore_gpio_map[] = {
GPIO_NC, /* S0_NC12 - NC */
GPIO_INPUT, /* S0_NC13 - GPIO_NC13 - STRAP */
GPIO_NC, /* S0_NC14 - NC */
- GPIO_NC, /* S0_NC15 - XDP_GPIO_S0_NC15 */
- GPIO_NC, /* S0_NC16 - XDP_GPIO_S0_NC16 */
- GPIO_NC, /* S0_NC17 - XDP_GPIO_S0_NC17 */
- GPIO_NC, /* S0_NC18 - XDP_GPIO_S0_NC18 */
- GPIO_NC, /* S0_NC19 - XDP_GPIO_S0_NC19 */
- GPIO_NC, /* S0_NC20 - XDP_GPIO_S0_NC20 */
- GPIO_NC, /* S0_NC21 - XDP_GPIO_S0_NC21 */
- GPIO_NC, /* S0_NC22 - XDP_GPIO_S0_NC22 */
- GPIO_NC, /* S0_NC23 - XDP_GPIO_S0_NC23 */
+ GPIO_DEFAULT, /* S0_NC15 - XDP_GPIO_S0_NC15 */
+ GPIO_DEFAULT, /* S0_NC16 - XDP_GPIO_S0_NC16 */
+ GPIO_DEFAULT, /* S0_NC17 - XDP_GPIO_S0_NC17 */
+ GPIO_DEFAULT, /* S0_NC18 - XDP_GPIO_S0_NC18 */
+ GPIO_DEFAULT, /* S0_NC19 - XDP_GPIO_S0_NC19 */
+ GPIO_DEFAULT, /* S0_NC20 - XDP_GPIO_S0_NC20 */
+ GPIO_DEFAULT, /* S0_NC21 - XDP_GPIO_S0_NC21 */
+ GPIO_DEFAULT, /* S0_NC22 - XDP_GPIO_S0_NC22 */
+ GPIO_DEFAULT, /* S0_NC23 - XDP_GPIO_S0_NC23 */
GPIO_NC, /* S0_NC24 - NC */
GPIO_NC, /* S0_NC25 - NC */
GPIO_NC, /* S0_NC26 - NC */
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: