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authorDavid Hendricks <dhendrix@chromium.org>2015-06-01 15:17:24 -0700
committerPatrick Georgi <pgeorgi@google.com>2015-07-06 09:39:25 +0200
commita1e5a7761ad824ffd8449db02fec9274eb165bc2 (patch)
tree50c70207815faab91092e3d1206b09a259502e3e /src
parentd8a3ed49a59fdf54ac3f311a75dca3e94b13eb26 (diff)
downloadcoreboot-a1e5a7761ad824ffd8449db02fec9274eb165bc2.tar.xz
veyron_danger: EDP changes for v2
EDP-related hardware modifications for v2: - BL_EN moved from GPIO7_A3 to GPIO7_A2 - EDP_HPD added to GPIO7_B3 BUG=none BRANCH=none TEST=built and booted Danger v2 with EDP panel attached, saw dev mode screen come up Change-Id: I47383610082b371a612aced656e56f1bd1cfa098 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: fb939ff17cca7bbd24aabfdb3cbd444696a5a845 Original-Signed-off-by: David Hendricks <dhendrix@chromium.org> Original-Change-Id: Id271cdcfcde6fa84c1bb707b9842bddd77a7121b Original-Reviewed-on: https://chromium-review.googlesource.com/280855 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/10771 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/veyron_danger/mainboard.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/src/mainboard/google/veyron_danger/mainboard.c b/src/mainboard/google/veyron_danger/mainboard.c
index 7b06742cfc..f105d36919 100644
--- a/src/mainboard/google/veyron_danger/mainboard.c
+++ b/src/mainboard/google/veyron_danger/mainboard.c
@@ -99,10 +99,32 @@ static void configure_vop(void)
* To minimize display corruption, turn off LCDC_BL before
* powering on the backlight.
*/
- gpio_output(GPIO_BACKLIGHT, 1); /* BL_EN */
- gpio_output(GPIO_LCDC_BL, 0);
+ switch (board_id()) {
+ case 0:
+ gpio_output(GPIO(7, A, 3), 1);
+ break;
+ default:
+ gpio_output(GPIO(7, A, 2), 1);
+ break;
+ }
+ gpio_output(GPIO_LCDC_BL, 0);
rk808_configure_switch(1, 1); /* VCC33_LCD */
+
+ /* EDP_HPD setup */
+ switch (board_id()) {
+ case 0:
+ /* not present */
+ break;
+ default:
+ /* Unlike other Veyrons, Danger has external pull resistors on
+ * EDP_HPD. Default for GPIO(7, B, 3) is pull-down, set to
+ * float.
+ */
+ gpio_input(GPIO(7, B, 3));
+ write32(&rk3288_grf->iomux_edp_hotplug, IOMUX_EDP_HOTPLUG);
+ break;
+ }
}
static void configure_hdmi(void)