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/fdt_wrappers.h b/include/common/fdt_wrappers.h
index a571092..e8b3933 100644
--- a/include/common/fdt_wrappers.h
+++ b/include/common/fdt_wrappers.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -24,6 +24,8 @@
unsigned int cells, uint32_t *value);
int fdtw_read_string(const void *dtb, int node, const char *prop,
char *str, size_t size);
+int fdtw_read_uuid(const void *dtb, int node, const char *prop,
+ unsigned int length, uint8_t *uuid);
int fdtw_write_inplace_cells(void *dtb, int node, const char *prop,
unsigned int cells, void *value);
int fdtw_read_bytes(const void *dtb, int node, const char *prop,