[PATCH] image-fdt: save name of FIT configuration in '/chosen' node

Daniel Golle
2022-03-21T23:22:46Z

It can be useful for the OS (Linux) to know which configuration has
been chosen by U-Boot when launching a FIT image.
Store the name of the FIT configuration node used in a new string
attribute called 'bootconf' in the '/chosen' node in device tree.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
boot/image-fdt.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/boot/image-fdt.c b/boot/image-fdt.c
index 692a9ad3e4..4017bc94a6 100644
--- a/boot/image-fdt.c
+++ b/boot/image-fdt.c
@@ -601,6 +601,12 @@ int image_setup_libfdt(bootm_headers_t *images, void *blob,
goto err;
}

+ /* Store name of configuration node as bootconf in /chosen node */
+ if (images->fit_uname_cfg)
+ fdt_find_and_setprop(blob, "/chosen", "bootconf",
+ images->fit_uname_cfg,
+ strlen(images->fit_uname_cfg) + 1, 1);
+
/* Update ethernet nodes */
fdt_fixup_ethernet(blob);
#if CONFIG_IS_ENABLED(CMD_PSTORE)
--
2.35.1