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authorSubrata Banik <subratabanik@google.com>2024-06-05 18:15:20 +0530
committerFelix Held <felix-coreboot@felixheld.de>2024-06-07 18:40:00 +0000
commitb6e949ff8eaa362617b5fdc687df3b1ef2dd528c (patch)
tree3841b89d1376a7a0cdb0c552adbac9ac095d6a99 /src
parentb0692f65b6513592b5792125493b2848ce6e642a (diff)
mb/google/rex0: Restore SSD power sequencing GPIOs in ramstage
This change restores the EN_PP3300_SSD GPIO configuration in the ramstage for the Rex0 variant. This is necessary to enable testing of RO lockdown scenarios on FSI'ed Screbo devices, where bootblock changes are not applicable. Additionally, ensures locking the GPIO PAD from getting misconfigured after booting to OS. BUG=b/337971452 BRANCH=firmware-rex-15709.B TEST=Able to boot google/rex with RO locked to an older version without SSD GPIO refactored, and RW is with the latest revision. Change-Id: Ia7564b14a20d00e9bb2c9466b7a737dd97f01351 Signed-off-by: Subrata Banik <subratabanik@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/82909 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/rex/variants/rex0/gpio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/google/rex/variants/rex0/gpio.c b/src/mainboard/google/rex/variants/rex0/gpio.c
index 9d8f9ff75b..d492bd17a7 100644
--- a/src/mainboard/google/rex/variants/rex0/gpio.c
+++ b/src/mainboard/google/rex/variants/rex0/gpio.c
@@ -45,6 +45,8 @@ static const struct pad_config gpio_table[] = {
/* GPP_A18 : [] ==> CAM_PSW_L */
PAD_CFG_GPI_INT_LOCK(GPP_A18, NONE, EDGE_BOTH, LOCK_CONFIG),
+ /* GPP_A19 : [] ==> EN_PP3300_SSD */
+ PAD_CFG_GPO_LOCK(GPP_A19, 1, LOCK_CONFIG),
/* GPP_A21 : [] ==> WWAN_CONFIG2 */
PAD_CFG_GPI(GPP_A21, NONE, DEEP),