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authorRobert Chen <robert.chen@quanta.corp-partner.google.com>2022-03-25 16:42:16 +0800
committerKarthik Ramasubramanian <kramasub@google.com>2022-04-21 17:38:55 +0000
commita6c94332ba1da021bb34a46e7c61265d445f6766 (patch)
tree6be2d56768ecb73278ebbf05341862688a135712 /src/mainboard
parent05c9a850fd21e060efdd54b5699aaf8f3c54d2a4 (diff)
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>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/google/dedede/variants/lantis/Makefile.inc3
-rw-r--r--src/mainboard/google/dedede/variants/lantis/ramstage.c17
2 files changed, 20 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/lantis/Makefile.inc b/src/mainboard/google/dedede/variants/lantis/Makefile.inc
new file mode 100644
index 0000000000..2a9206c2b6
--- /dev/null
+++ b/src/mainboard/google/dedede/variants/lantis/Makefile.inc
@@ -0,0 +1,3 @@
+## SPDX-License-Identifier: GPL-2.0-or-later
+
+ramstage-y += ramstage.c
diff --git a/src/mainboard/google/dedede/variants/lantis/ramstage.c b/src/mainboard/google/dedede/variants/lantis/ramstage.c
new file mode 100644
index 0000000000..255e58557e
--- /dev/null
+++ b/src/mainboard/google/dedede/variants/lantis/ramstage.c
@@ -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();
+}