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mb/google/dedede/var/lantis: Add FW_CONFIG probe for EXT_VR 

Add FW_CONFIG probe for absent ANPEC APW8738BQBI IC on lantis.

BUG=b:223687184
TEST=emerge-dedede coreboot

Signed-off-by: Robert Chen <robert.chen@quanta.corp-partner.google.com>
Change-Id: I3d8eec1d2f962d42f3be225eef8498e8b722aace
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63112
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shou-Chieh Hsu <shouchieh@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
This commit is contained in:
Robert Chen 2022-03-25 16:42:16 +08:00 committed by Karthik Ramasubramanian
parent 05c9a850fd
commit a6c94332ba
2 changed files with 20 additions and 0 deletions
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3
src/mainboard/google/dedede/variants/lantis/Makefile.inc Normal file
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## SPDX-License-Identifier: GPL-2.0-or-later
ramstage-y += ramstage.c

17
src/mainboard/google/dedede/variants/lantis/ramstage.c Normal file
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@ -0,0 +1,17 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <baseboard/variants.h>
#include <fw_config.h>
#include <soc/soc_chip.h>
static void ext_vr_update(void)
{
struct soc_intel_jasperlake_config *cfg = config_of_soc();
if (fw_config_probe(FW_CONFIG(EXT_VR, EXT_VR_ABSENT)))
cfg->disable_external_bypass_vr = 1;
}
void variant_devtree_update(void)
{
ext_vr_update();
}