From a1e5a7761ad824ffd8449db02fec9274eb165bc2 Mon Sep 17 00:00:00 2001 From: David Hendricks Date: Mon, 1 Jun 2015 15:17:24 -0700 Subject: 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 Original-Commit-Id: fb939ff17cca7bbd24aabfdb3cbd444696a5a845 Original-Signed-off-by: David Hendricks Original-Change-Id: Id271cdcfcde6fa84c1bb707b9842bddd77a7121b Original-Reviewed-on: https://chromium-review.googlesource.com/280855 Original-Reviewed-by: Julius Werner Reviewed-on: http://review.coreboot.org/10771 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/mainboard/google/veyron_danger/mainboard.c | 26 ++++++++++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-) (limited to 'src/mainboard/google') 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) -- cgit v1.2.3