fdtdec: Add weak function to patch U-Boot DT right after fdtdec_setup()
Add weak function which is called right after fdtdec_setup() configured
the U-Boot DT. This permits board-specific adjustments to the U-Boot DT
before U-Boot starts parsing the DT. This could be used e.g. to patch in
various custom nodes or merge in DT fragments from prior-stage firmware.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 9c4d571..1f2b763 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1474,8 +1474,14 @@
return 0;
}
+__weak int fdtdec_board_setup(const void *fdt_blob)
+{
+ return 0;
+}
+
int fdtdec_setup(void)
{
+ int ret;
#if CONFIG_IS_ENABLED(OF_CONTROL)
# if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
void *fdt_blob;
@@ -1528,7 +1534,10 @@
# endif
#endif
- return fdtdec_prepare_fdt();
+ ret = fdtdec_prepare_fdt();
+ if (!ret)
+ ret = fdtdec_board_setup(gd->fdt_blob);
+ return ret;
}
#if CONFIG_IS_ENABLED(MULTI_DTB_FIT)