Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/52722 )
Change subject: mb/google/asurada: Fix power on delay ......................................................................
mb/google/asurada: Fix power on delay
From ANX7625 spec, the delay between powering on power supplies and GPIO should be larger than 10ms. Since it takes about 4ms for the previous GPIO EN_PP3300_EDP_DX to be pulled up, increase the delay from 2ms to 14ms.
BUG=b:157716104 TEST=emerge-asurada coreboot BRANCH=asurada
Change-Id: If73747bdaec5ac069b048920d27e27178bc3cedc Signed-off-by: Yu-Ping Wu yupingso@chromium.org Reviewed-on: https://review.coreboot.org/c/coreboot/+/52722 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Hung-Te Lin hungte@chromium.org --- M src/mainboard/google/asurada/mainboard.c 1 file changed, 1 insertion(+), 1 deletion(-)
Approvals: build bot (Jenkins): Verified Hung-Te Lin: Looks good to me, approved
diff --git a/src/mainboard/google/asurada/mainboard.c b/src/mainboard/google/asurada/mainboard.c index 86e8d5f..f5489de 100644 --- a/src/mainboard/google/asurada/mainboard.c +++ b/src/mainboard/google/asurada/mainboard.c @@ -77,7 +77,7 @@ gpio_output(GPIO_EN_PP1000_EDPBRDG, 1); gpio_output(GPIO_EN_PP1800_EDPBRDG_DX, 1); gpio_output(GPIO_EN_PP3300_EDP_DX, 1); - mdelay(2); + mdelay(14); gpio_output(GPIO_EDPBRDG_PWREN, 1); mdelay(10); gpio_output(GPIO_EDPBRDG_RST_ODL, 1);