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mb/google/skyrim: Disable L1.2 for SD port 

Having L1.2 enabled on the SD port increases the kernel resume times by
between 30 & 40ms.  This patch disables L1.2 on SD to get that time
back.

As with needing to have hotplug enabled on the SD card, this seems like
a driver issue, so hopefully that will get sorted out and this patch
can be reverted.

BUG=b:274025743
TEST=resume times are decreased.
BRANCH=skyrim

Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I2c409fa2cd66c712c5ba7104635499d63fa0d2be
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74118
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
This commit is contained in:
Martin Roth 2023-03-30 13:43:11 -06:00 committed by Karthik Ramasubramanian
parent 11f2f88a27
commit 45b9509476
1 changed files with 0 additions and 1 deletions
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src/mainboard/google/skyrim/port_descriptors.c
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@ -35,7 +35,6 @@ static const fsp_dxio_descriptor skyrim_mdn_dxio_descriptors[] = {
.link_hotplug = 3, .link_hotplug = 3,
.link_aspm = ASPM_L1, .link_aspm = ASPM_L1,
.link_aspm_L1_1 = true, .link_aspm_L1_1 = true,
.link_aspm_L1_2 = true,
.gpio_group_id = GPIO_27, .gpio_group_id = GPIO_27,
.clk_req = CLK_REQ1, .clk_req = CLK_REQ1,
}, },