From e266eb82d9fc84b3c1c1e09c677e8b5d839626bb Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Thu, 18 Jun 2020 23:14:51 -0700 Subject: mb/google/zork: Add support for GPIO configuration on sleep path This change adds support to configure GPIOs on the sleep path. This is required to turn off power to devices that do not act as wake sources and to assert reset to devices. Currently, variant_sleep_gpio_table() returns an empty table by default. In the following changes, entries will be added to gpio_sleep_table. BUG=b:152582706 Signed-off-by: Furquan Shaikh Change-Id: I7286cbf165024bdd81f8748e525542dce8dd8702 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2253642 Tested-by: Furquan Shaikh Reviewed-by: Aaron Durbin Commit-Queue: Furquan Shaikh Reviewed-on: https://review.coreboot.org/c/coreboot/+/42932 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/mainboard/google/zork/variants/baseboard/Makefile.inc | 2 ++ .../google/zork/variants/baseboard/gpio_baseboard_common.c | 9 +++++++++ .../google/zork/variants/baseboard/include/baseboard/variants.h | 7 +++++++ 3 files changed, 18 insertions(+) (limited to 'src/mainboard/google/zork/variants/baseboard') diff --git a/src/mainboard/google/zork/variants/baseboard/Makefile.inc b/src/mainboard/google/zork/variants/baseboard/Makefile.inc index 7e4ccae4f3..0f025e0d84 100644 --- a/src/mainboard/google/zork/variants/baseboard/Makefile.inc +++ b/src/mainboard/google/zork/variants/baseboard/Makefile.inc @@ -24,6 +24,8 @@ ramstage-$(CONFIG_BOARD_GOOGLE_BASEBOARD_DALBOZ) += fsps_baseboard_dalboz.c ramstage-y += helpers.c ramstage-y += tpm_tis.c +smm-y += gpio_baseboard_common.c + # Add OEM ID table ifeq ($(CONFIG_USE_OEM_BIN),y) cbfs-files-y += oem.bin diff --git a/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_common.c b/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_common.c index a4e86487bd..614e837726 100644 --- a/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_common.c +++ b/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_common.c @@ -30,3 +30,12 @@ const __weak struct soc_amd_gpio *variant_early_gpio_table(size_t *size) *size = ARRAY_SIZE(early_gpio_table); return early_gpio_table; } + +static const struct soc_amd_gpio gpio_sleep_table[] = { +}; + +const __weak struct soc_amd_gpio *variant_sleep_gpio_table(size_t *size, int slp_typ) +{ + *size = ARRAY_SIZE(gpio_sleep_table); + return gpio_sleep_table; +} diff --git a/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h index 4f8f225ad1..6c5b95b5cc 100644 --- a/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h +++ b/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h @@ -25,6 +25,13 @@ const struct soc_amd_gpio *variant_base_gpio_table(size_t *size); * configuration provided by variant_base_gpio_table(). */ const struct soc_amd_gpio *variant_override_gpio_table(size_t *size); + +/* + * This function provides GPIO table for the pads that need to be configured when entering + * sleep. + */ +const struct soc_amd_gpio *variant_sleep_gpio_table(size_t *size, int slp_typ); + void variant_romstage_entry(void); /* Modify devictree settings during ramstage. */ void variant_devtree_update(void); -- cgit v1.2.3