Change in coreboot[master]: libpayload: Add SKU ID coreboot table support

[Julius Werner (Code Review)]

Julius Werner has uploaded this change for review. ( https://review.coreboot.org/22743

Change subject: libpayload: Add SKU ID coreboot table support
......................................................................

libpayload: Add SKU ID coreboot table support

This patch adds support to read the SKU ID entry from the coreboot table
that was recently added in coreboot.

Change-Id: I1c3b375da6119a4f8e8e7e25a11644becb90f927
Signed-off-by: Julius Werner 
---
M payloads/libpayload/include/coreboot_tables.h
M payloads/libpayload/include/sysinfo.h
M payloads/libpayload/libc/coreboot.c
3 files changed, 12 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/43/22743/1

diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h
index 5bc56d0..6b6d1b4 100644
--- a/payloads/libpayload/include/coreboot_tables.h
+++ b/payloads/libpayload/include/coreboot_tables.h
@@ -239,6 +239,7 @@

#define CB_TAG_BOARD_ID		0x0025
 #define CB_TAG_RAM_CODE		0x0028
+#define CB_TAG_SKU_ID		0x002d
 struct cb_strapping_id {
    uint32_t tag;
    uint32_t size;
diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h
index b46d4b1..f221a15 100644
--- a/payloads/libpayload/include/sysinfo.h
+++ b/payloads/libpayload/include/sysinfo.h
@@ -112,6 +112,7 @@
 #define UNDEFINED_STRAPPING_ID (~0)
    u32		board_id;
    u32		ram_code;
+	u32		sku_id;

void		*wifi_calibration;
    uint64_t	ramoops_buffer;
diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c
index 1efde9a..d831b96 100644
--- a/payloads/libpayload/libc/coreboot.c
+++ b/payloads/libpayload/libc/coreboot.c
@@ -157,6 +157,12 @@
    info->ram_code = ram_code->id_code;
 }

+static void cb_parse_sku_id(unsigned char *ptr, struct sysinfo_t *info)
+{
+	struct cb_strapping_id *const sku_id = (struct cb_strapping_id *)ptr;
+	info->sku_id = sku_id->id_code;
+}
+
 #if IS_ENABLED(CONFIG_LP_NVRAM)
 static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info)
 {
@@ -280,6 +286,7 @@
    /* Initialize IDs as undefined in case they don't show up in table. */
    info->board_id = UNDEFINED_STRAPPING_ID;
    info->ram_code = UNDEFINED_STRAPPING_ID;
+	info->sku_id = UNDEFINED_STRAPPING_ID;

/* Now, walk the tables. */
    ptr += header->header_bytes;
@@ -380,6 +387,9 @@
    	case CB_TAG_RAM_CODE:
    		cb_parse_ram_code(ptr, info);
    		break;
+		case CB_TAG_SKU_ID:
+			cb_parse_sku_id(ptr, info);
+			break;
    	case CB_TAG_WIFI_CALIBRATION:
    		cb_parse_wifi_calibration(ptr, info);
    		break;