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authorKevin Chiu <Kevin.Chiu@quantatw.com>2017-09-14 11:05:57 +0800
committerAaron Durbin <adurbin@chromium.org>2017-09-26 03:35:29 +0000
commitb6850ddbffa216ae7306d612fafb460ef1608d6f (patch)
tree4c202c9bd6241e7aaaebbbe0a7154a2896a5406c /src
parenta871059ef2f4a4ddbd539f0af8c89bef8e257ffe (diff)
downloadcoreboot-b6850ddbffa216ae7306d612fafb460ef1608d6f.tar.xz
google/snappy: Override SKU ID by VPD
Since snappy PCB may have over 9 SKU and current GPIO board ID GP16/GP17 is insufficient to use. Using VPD to control could prevent H/W change. BUG=b:65339688 BRANCH=reef TEST=emerge-snappy coreboot Change-Id: I55ab741354797e022dd945da9c8499ee5e041316 Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com> Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/21533 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/reef/variants/snappy/mainboard.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/mainboard/google/reef/variants/snappy/mainboard.c b/src/mainboard/google/reef/variants/snappy/mainboard.c
index a04f61a72f..2767df245e 100644
--- a/src/mainboard/google/reef/variants/snappy/mainboard.c
+++ b/src/mainboard/google/reef/variants/snappy/mainboard.c
@@ -13,10 +13,53 @@
* GNU General Public License for more details.
*/
+#include <string.h>
#include <baseboard/variants.h>
#include <ec/google/chromeec/ec.h>
+#include <vendorcode/google/chromeos/cros_vpd.h>
void variant_board_ec_set_skuid(void)
{
google_chromeec_set_sku_id(variant_board_sku());
}
+
+/*
+ * override SKU ID by VPD definition
+ */
+uint8_t variant_board_sku(void)
+{
+ static int board_sku_num = -1;
+ int vpd_sku_num;
+ char vpd_skuid[] = "skuid";
+ char vpd_buffer[4];
+ int vpd_len;
+ int i;
+
+ if (board_sku_num != -1)
+ return board_sku_num;
+
+ board_sku_num = sku_strapping_value();
+
+ if (!IS_ENABLED(CONFIG_CHROMEOS))
+ return board_sku_num;
+
+ if (!cros_vpd_gets(vpd_skuid, vpd_buffer, ARRAY_SIZE(vpd_buffer)))
+ return board_sku_num;
+
+ vpd_len = strlen(vpd_buffer);
+
+ vpd_sku_num = 0;
+ for (i = 0; i < vpd_len; i++) {
+ char ch = vpd_buffer[i];
+ if ((ch < '0') || (ch > '9')) {
+ vpd_sku_num = -1;
+ break;
+ } else
+ vpd_sku_num = vpd_sku_num * 10 + (ch - '0');
+ }
+
+ if (vpd_sku_num != -1)
+ board_sku_num = vpd_sku_num;
+
+ return board_sku_num;
+}