>From 0d5cf1adbe2fb966db199aef5f135d9cf8cc72b9 Mon Sep 17 00:00:00 2001
From: Marcin Labun <marcin.labun@xxxxxxxxx>
Date: Fri, 18 Mar 2011 13:58:24 +0100
Subject: [PATCH] platform_intel: support EFI SCU OEM variable
RstScuV and RstScuO variable names are supported.
First try reading from RstScuV, when it fails try RstScuO.
Signed-off-by: Marcin Labun <marcin.labun@xxxxxxxxx>
Tested-by: Przemyslaw Czarnowski <przemyslaw.hawrylewicz.czarnowski@xxxxxxxxx>
---
platform-intel.c | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/platform-intel.c b/platform-intel.c
index 8003da6..64542b9 100644
--- a/platform-intel.c
+++ b/platform-intel.c
@@ -349,6 +349,7 @@ static const struct imsm_orom *find_imsm_hba_orom(enum sys_dev_type hba_id)
#define SYS_EFI_VAR_PATH "/sys/firmware/efi/vars"
#define SCU_PROP "RstScuV"
+#define SCU_PROP_OEM "RstScuO"
#define AHCI_PROP "RstSataV"
#define VENDOR_GUID \
@@ -393,8 +394,14 @@ const struct imsm_orom *find_imsm_efi(enum sys_dev_type hba_id)
snprintf(path, PATH_MAX, "%s/%s-%s", SYS_EFI_VAR_PATH, AHCI_PROP, guid_str(buf, VENDOR_GUID));
dprintf("EFI VAR: path=%s\n", path);
-
- if ((dfd = open(path, O_RDONLY)) < 0) {
+ dfd = open(path, O_RDONLY);
+ if ((dfd < 0) && (hba_id == SYS_DEV_SAS)) {
+ /* check OEM parameters */
+ snprintf(path, PATH_MAX, "%s/%s-%s", SYS_EFI_VAR_PATH, SCU_PROP_OEM, guid_str(buf, VENDOR_GUID));
+ dfd = open(path, O_RDONLY);
+ dprintf("EFI VAR: path=%s\n", path);
+ }
+ if (dfd < 0) {
populated_efi[hba_id] = 0;
return NULL;
}
--
1.6.4.2
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