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authorRaihow Shi <raihow_shi@wistron.corp-partner.google.com>2022-04-11 17:22:51 +0800
committerFelix Held <felix-coreboot@felixheld.de>2022-04-19 13:08:32 +0000
commit40c47b24a450b63af9cbba1a2ffbf04cd282076c (patch)
tree1683f6fdb4b7f02730b0b949c4a31e2a5fbf090e /src/mainboard/samsung
parentb83dd7ea635c7ea253eeae9698f3ef22351318cf (diff)
mb/google/brask/variants/moli: add delay time to rtd3-cold
This CL adds the delay time 50 ms and 20 ms into the RTD3 sequence, the reason is that the rise and fall times of each signal may differ by board, and so those board-specific delays must be taken into account when power sequencing. We checked power on sequence requires enable pin prior to reset pin, so added delay to meet the sequence. Based on BH799BB_Preliminary_DS_R079_20201124.pdf in chapter 7.2. BUG=b:228907551 TEST=emerge-brask coreboot. Signed-off-by: Raihow Shi <raihow_shi@wistron.corp-partner.google.com> Change-Id: Idecb1c89655c9b8b720c3c65efc77e06e6a8b300 Reviewed-on: https://review.coreboot.org/c/coreboot/+/63544 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
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