feat(fdt): introduce wrapper function to read DT UUIDs
TF-A does not have the capability to read UUIDs in string form
from the device tree. This capability is useful for readability,
so add a wrapper function, fdtw_read_uuid() to parse UUIDs from
the DT.
This function should parse a string of the form:
"aabbccdd-eeff-4099-8877-665544332211"
to the byte sequence in memory:
[aa bb cc dd ee ff 40 99 88 77 66 55 44 33 22 11]
Change-Id: I99a92fbeb40f4f4713f3458b36cb3863354d2bdf
Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/include/common/uuid.h b/include/common/uuid.h
new file mode 100644
index 0000000..5651d0d
--- /dev/null
+++ b/include/common/uuid.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2021, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef UUID_H
+#define UUID_H
+
+#define UUID_BYTES_LENGTH 16
+#define UUID_STRING_LENGTH 36
+
+int read_uuid(uint8_t *dest, char *uuid);
+
+#endif /* UUID_H */