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authorTarun Tuli <taruntuli@google.com>2023-05-29 12:56:41 +0000
committerFelix Held <felix-coreboot@felixheld.de>2023-05-31 18:47:23 +0000
commit74a986db9fb2d900b5a11a11249b74afc2ee69e8 (patch)
treeb8be8208fa83d500d3fc9b3aa082cefd97b46830
parenta3b46521fa0e20bc256da66801460577a9e20158 (diff)
mb/google/brya/acpi: FBVDD_PWR_EN should be inverted on Agah
The FBVDD_PWR_EN signal should be inverted in its control level on Agah v.s. Hades. The original change covered the Hades implementation, but needs to be updated to invert for Agah. This change can be removed once we drop support for Agah. BUG=b:280467267 TEST=built for Hades and Agah Change-Id: I7f90c03b8d9b859004e5c124bf0a1f7b59921c3d Signed-off-by: Tarun Tuli <taruntuli@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/75530 Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subratabanik@google.com>
-rw-r--r--src/mainboard/google/brya/acpi/power.asl15
1 files changed, 12 insertions, 3 deletions
diff --git a/src/mainboard/google/brya/acpi/power.asl b/src/mainboard/google/brya/acpi/power.asl
index 0371eda2ab..c4a84954f2 100644
--- a/src/mainboard/google/brya/acpi/power.asl
+++ b/src/mainboard/google/brya/acpi/power.asl
@@ -128,8 +128,12 @@ Method (GC6I, 0, Serialized)
/* Deassert PG_GPU_ALLRAILS */
CTXS (GPIO_GPU_ALLRAILS_PG)
- /* Deassert FBVDDQ Enable */
+ /* Ramp down FBVDD - TODO: Remove Agah when board is dropped */
+#if CONFIG(BOARD_GOOGLE_AGAH)
+ STXS (GPIO_FBVDD_PWR_EN)
+#else
CTXS (GPIO_FBVDD_PWR_EN)
+#endif
/* Ramp down PEXVDD */
CTXS (GPIO_PEXVDD_PWR_EN)
@@ -176,8 +180,13 @@ Method (GC6O, 0, Serialized)
STXS (GPIO_PEXVDD_PWR_EN)
GPPL (GPIO_PEXVDD_PG, 1, 4)
- /* Assert FBVDDQ Enable */
- STXS (GPIO_FBVDD_PWR_EN)
+ /* Ramp up FBVDD - TODO: Remove Agah when board is dropped */
+#if CONFIG(BOARD_GOOGLE_AGAH)
+ CTXS (GPIO_FBVDD_PWR_EN)
+#else
+ STXS (GPIO_FBVDD_PWR_EN)
+#endif
+
/* Assert PG_GPU_ALLRAILS */
STXS (GPIO_GPU_ALLRAILS_PG)