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mb/google/brya/var/crota: Enable VNN_1.05v_bypass rail

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Some SKUs of crota have VNN 1.05v bypass rails for additional
power savings in S0ix states. This patch uses FW_CONFIG to enable
that feature when run on the applicable SKUs.

BUG=b:233175019
BRANCH=none
TEST=emerge-brya coreboot and verified pass

Signed-off-by: Terry Chen <terry_chen@wistron.corp-partner.google.com>
Change-Id: Iaade50f4fe821b7114b3e2d44bda0747816da11c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65020
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Cyan Yang <cyan.yang@intel.corp-partner.google.com>
Reviewed-by: YH Lin <yueherngl@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Terry Chen 2022-06-08 17:47:06 +08:00 committed by Felix Held
parent 1f07797d84
commit ef51b6d742
1 changed files with 17 additions and 0 deletions
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17
src/mainboard/google/brya/variants/crota/variant.c
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@ -9,3 +9,20 @@ const char *get_wifi_sar_cbfs_filename(void)
{ {
return "wifi_sar_0.hex"; return "wifi_sar_0.hex";
} }
void variant_update_soc_chip_config(struct soc_intel_alderlake_config *config)
{
if (fw_config_probe(FW_CONFIG(DB_LTE, LTE_USB))) {
config->ext_fivr_settings.configure_ext_fivr = 1;
config->ext_fivr_settings.v1p05_enable_bitmap = FIVR_ENABLE_ALL_SX;
config->ext_fivr_settings.vnn_enable_bitmap = FIVR_ENABLE_ALL_SX;
config->ext_fivr_settings.v1p05_supported_voltage_bitmap = FIVR_VOLTAGE_NORMAL |
FIVR_VOLTAGE_MIN_ACTIVE |
FIVR_VOLTAGE_MIN_RETENTION;
config->ext_fivr_settings.vnn_supported_voltage_bitmap = FIVR_VOLTAGE_NORMAL |
FIVR_VOLTAGE_MIN_ACTIVE |
FIVR_VOLTAGE_MIN_RETENTION;
config->ext_fivr_settings.v1p05_icc_max_ma = 500;
config->ext_fivr_settings.vnn_sx_voltage_mv = 1250;
}
}