[S] Change in coreboot[main]: mb/google/rauru: Implement SKU ID

[Yidi Lin (Code Review)]

Yidi Lin has submitted this change. ( https://review.coreboot.org/c/coreboot/+/85666?usp=email )

Change subject: mb/google/rauru: Implement SKU ID
......................................................................

mb/google/rauru: Implement SKU ID

Retrieve the SKU ID for Rauru via CBI interface. If that failed
(or no data found), fall back to ADC channels for SKU ID.

TEST=Build pass, boot ok, log show:
SKU Code: 0x2
BUG=b:317009620

Change-Id: I49ba6f428f55d3aae1b84a4d5ce06bec765caece
Signed-off-by: Jarried Lin 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85666
Reviewed-by: Yu-Ping Wu 
Tested-by: build bot (Jenkins) 
Reviewed-by: Yidi Lin 
---
M src/mainboard/google/rauru/Kconfig
M src/mainboard/google/rauru/boardid.c
2 files changed, 25 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Yu-Ping Wu: Looks good to me, approved
  Yidi Lin: Looks good to me, approved

diff --git a/src/mainboard/google/rauru/Kconfig b/src/mainboard/google/rauru/Kconfig
index 18a1699..57e8c1b 100644
--- a/src/mainboard/google/rauru/Kconfig
+++ b/src/mainboard/google/rauru/Kconfig
@@ -26,6 +26,7 @@
    select CHROMEOS_USE_EC_WATCHDOG_FLAG if CHROMEOS
    select EC_GOOGLE_CHROMEEC
    select EC_GOOGLE_CHROMEEC_BOARDID
+	select EC_GOOGLE_CHROMEEC_SKUID
    select EC_GOOGLE_CHROMEEC_SPI
    select I2C_TPM if VBOOT
    select MAINBOARD_HAS_TPM2 if VBOOT
diff --git a/src/mainboard/google/rauru/boardid.c b/src/mainboard/google/rauru/boardid.c
index 1d49e03..e3e0979 100644
--- a/src/mainboard/google/rauru/boardid.c
+++ b/src/mainboard/google/rauru/boardid.c
@@ -3,6 +3,7 @@
 #include <assert.h>
 #include <boardid.h>
 #include <console/console.h>
+#include <device/mmio.h>
 #include <ec/google/chromeec/ec.h>
 #include <soc/mt6363_sdmadc.h>

@@ -10,6 +11,10 @@

#define ADC_LEVELS 8

+DEFINE_BITFIELD(STORAGE_TYPE, 11, 9);
+DEFINE_BITFIELD(CPU_TYPE, 8, 8);
+DEFINE_BITFIELD(PANEL_TYPE, 7, 0);
+
 enum {
    /* Storage IDs */
    STORAGE_ID_LOW_CHANNEL = AUXADC_CHAN_VIN1,
@@ -75,3 +80,22 @@
    }
    return UFS_UNKNOWN;
 }
+
+uint32_t sku_id(void)
+{
+	static uint32_t cached_sku_code = BOARD_ID_INIT;
+
+	if (cached_sku_code == BOARD_ID_INIT) {
+		cached_sku_code = google_chromeec_get_board_sku();
+
+		if (cached_sku_code == CROS_SKU_UNKNOWN ||
+		    cached_sku_code == CROS_SKU_UNPROVISIONED) {
+			printk(BIOS_WARNING, "Failed to get SKU code from EC\n");
+			cached_sku_code = CROS_SKU_UNPROVISIONED;
+			SET32_BITFIELDS(&cached_sku_code, STORAGE_TYPE, storage_id());
+		}
+		printk(BIOS_DEBUG, "SKU Code: %#02x\n", cached_sku_code);
+	}
+
+	return cached_sku_code;
+}