mb/google/zork: Use FW_CONFIG to enable/disable eMMC on Ezkinil

Currently SKU_ID is used to enable/disable eMMC as boot media on
Ezkinil. This patch will check eMMC bit in firmware configuration
table to enable/disable eMMC.

BRANCH=none
BUG=b:162344105
TEST=Check eMMC is enabled or disabled based on the eMMC bit in
     FW_CONFIG.

Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@google.com>
Change-Id: I62318cf71ec70790f2d9e787febd1e0b787741fb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44423
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

1 files changed, 4 insertions, 20 deletions

diff --git a/src/mainboard/google/zork/variants/ezkinil/variant.c b/src/mainboard/google/zork/variants/ezkinil/variant.c
index afc24a7416..29a50bcbeb 100644
--- a/src/mainboard/google/zork/variants/ezkinil/variant.c
+++ b/src/mainboard/google/zork/variants/ezkinil/variant.c
@@ -5,31 +5,15 @@
 #include <soc/pci_devs.h>
 #include <ec/google/chromeec/ec.h>
 
-static int sku_has_emmc(void)
-{
-	uint32_t board_sku = sku_id();
-
-	/* Factory flow requires all OS boot media to be enabled. */
-	if (boot_is_factory_unprovisioned())
-		return 1;
-
-	if ((board_sku == 0x5A020000) ||
-	    (board_sku == 0x5A020001) || (board_sku == 0x5A020002) ||
-	    (board_sku == 0x5A020005) || (board_sku == 0x5A020006) ||
-	    (board_sku == 0x5A020009) || (board_sku == 0x5A02000A) ||
-	    (board_sku == 0x5A02000D) || (board_sku == 0x5A02000E) ||
-	    (board_sku == 0x5A020016) || (board_sku == 0x5A020017))
-		return 1;
-
-	return 0;
-}
-
 void variant_devtree_update(void)
 {
 	struct soc_amd_picasso_config *cfg;
 
 	cfg = config_of_soc();
 
-	if (!sku_has_emmc())
+	/*
+	 * Enable eMMC if eMMC bit is set in FW_CONFIG or device is unprovisioned.
+	 */
+	if (!(variant_has_emmc() || boot_is_factory_unprovisioned()))
 		cfg->sd_emmc_config = SD_EMMC_DISABLE;
 }