mb/google/hatch/dratini: increase power enable to reset deassert delay

With 1ms delay, reset is de-asserted too soon, before power is fully
up, causing a glitch to the reset signal. The issue is resolved with
4ms delay.

TEST=tested on dratini device and observed the issue is resolved.
BUG=b:260253945

Change-Id: I5c3edbc6ac90d5042c2d3c5b01573d4bb1ea676d
Signed-off-by: Eran Mitrani <mitrani@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70666
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Eran Mitrani 2022-12-12 15:11:35 -08:00 committed by Martin L Roth
parent 0f0a43c9b1
commit 988d3eefa6
1 changed files with 1 additions and 1 deletions

View File

@ -14,6 +14,6 @@ void variant_ramstage_init(void)
* a minimum of 400us on Kohaku. * a minimum of 400us on Kohaku.
*/ */
gpio_output(GPP_C11, 1); gpio_output(GPP_C11, 1);
mdelay(1); mdelay(4);
gpio_output(GPP_A12, 1); gpio_output(GPP_A12, 1);
} }