1 files changed, 36 insertions, 0 deletions
diff --git a/boot/vbe_common.c b/boot/vbe_common.c
new file mode 100644
index 00000000000..ede452ba306
--- /dev/null
+++ b/boot/vbe_common.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Verified Boot for Embedded (VBE) common functions
+ *
+ * Copyright 2024 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <part.h>
+#include <vsprintf.h>
+#include "vbe_common.h"
+
+int vbe_get_blk(const char *storage, struct udevice **blkp)
+{
+	struct blk_desc *desc;
+	char devname[16];
+	const char *end;
+	int devnum;
+
+	/* First figure out the block device */
+	log_debug("storage=%s\n", storage);
+	devnum = trailing_strtoln_end(storage, NULL, &end);
+	if (devnum == -1)
+		return log_msg_ret("num", -ENODEV);
+	if (end - storage >= sizeof(devname))
+		return log_msg_ret("end", -E2BIG);
+	strlcpy(devname, storage, end - storage + 1);
+	log_debug("dev=%s, %x\n", devname, devnum);
+
+	desc = blk_get_dev(devname, devnum);
+	if (!desc)
+		return log_msg_ret("get", -ENXIO);
+	*blkp = desc->bdev;
+
+	return 0;
+}