mb/google/reef: provide override GPIO table in coral

Allow overriding specific GPIOs by SKU ID. Override two GPIO settings
for nasher to save the power consumption when the system in S0ix.

Change as below:
AVS_DMIC_CLK_A1: IGNORE -> Tx1RXDCRx0.
AVS_DMIC_CLK_B1: IGNORE -> Tx1RXDCRx0.

BUG=b:69025557
BRANCH=master
TEST=compile/verify the power consumption change from ~150mW to ~100mW
     on clamshell SKU and from ~200mW to ~100mW for convertible SKU.

Change-Id: I9e0674f206426fddb3947273754774b310106334
Signed-off-by: Chris Wang <chriswang@ami.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/22752
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h
index 0f2c37653f..8611ecd4f3 100644
--- a/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h
@@ -29,6 +29,7 @@ uint8_t sku_strapping_value(void);
 const struct pad_config *variant_gpio_table(size_t *num);
 const struct pad_config *variant_early_gpio_table(size_t *num);
 const struct pad_config *variant_sleep_gpio_table(u8 slp_typ, size_t *num);
+const struct pad_config *variant_sku_gpio_table(size_t *num);
 
 /* Baseboard default swizzle. Can be reused if swizzle is same. */
 extern const struct lpddr4_swizzle_cfg baseboard_lpddr4_swizzle;