diff options
| author | Jeremy Compostella <jeremy.compostella@intel.com> | 2023-10-26 09:48:20 -0700 |
|---|---|---|
| committer | Matt DeVillier <matt.devillier@amd.corp-partner.google.com> | 2023-10-28 20:56:11 +0000 |
| commit | d4bf7211ca72a6fe579f2d4bfadd64a6b3ef3f2d (patch) | |
| tree | ee292c53b9f6cebe44c1ad05bc1fd2b7391b0b9c /src/mainboard/google | |
| parent | 0ec65daf7dd45b23170c0c1c95bde011fe6a752e (diff) | |
mb/google/rex/var/rex0: Configure EN_WWAN_PWR GPIO based on CBI
GPP_B17 (aka. EN_WWAN_PWR) should be kept low when the device does not
have a WWAN module.
TEST=Power consumption drops to 0 in S0iX
Change-Id: I95150c20c98b037a47827a7b83e4373c6e9070e3
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78684
Reviewed-by: Sukumar Ghorai <sukumar.ghorai@intel.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/rex/variants/rex0/fw_config.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mainboard/google/rex/variants/rex0/fw_config.c b/src/mainboard/google/rex/variants/rex0/fw_config.c index 35a4fd9320..60dd6bf3c3 100644 --- a/src/mainboard/google/rex/variants/rex0/fw_config.c +++ b/src/mainboard/google/rex/variants/rex0/fw_config.c @@ -126,6 +126,10 @@ static const struct pad_config uwb_gspi1_disable_pads[] = { PAD_NC(GPP_F20, NONE), }; +static const struct pad_config wwan_disable_pads[] = { + PAD_CFG_GPO(GPP_B17, 0, DEEP) /* EN_WWAN_PWR */ +}; + void fw_config_gpio_padbased_override(struct pad_config *padbased_table) { if (!fw_config_is_provisioned()) { @@ -180,4 +184,9 @@ void fw_config_gpio_padbased_override(struct pad_config *padbased_table) printk(BIOS_INFO, "Disabling UWB (absent or misconfigured)\n"); GPIO_PADBASED_OVERRIDE(padbased_table, uwb_gspi1_disable_pads); } + + if (fw_config_probe(FW_CONFIG(CELLULAR, CELLULAR_ABSENT))) { + printk(BIOS_INFO, "Configure GPIOs for no cellular.\n"); + GPIO_PADBASED_OVERRIDE(padbased_table, wwan_disable_pads); + } } |