Add fdt_fixup_ethernet helper to set mac addresses
Added a fixup helper that uses aliases to set mac addresses
in the device tree based on the bd_t
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/common/fdt_support.c b/common/fdt_support.c
index d5743b4..e848386 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -386,4 +386,50 @@
do_fixup_by_path(fdt, path, prop, &val, sizeof(val), create);
}
+void fdt_fixup_ethernet(void *fdt, bd_t *bd)
+{
+ int node;
+ const char *path;
+
+ node = fdt_path_offset(fdt, "/aliases");
+ if (node >= 0) {
+#if defined(CONFIG_HAS_ETH0)
+ path = fdt_getprop(fdt, node, "ethernet0", NULL);
+ if (path) {
+ do_fixup_by_path(fdt, path, "mac-address",
+ bd->bi_enetaddr, 6, 0);
+ do_fixup_by_path(fdt, path, "local-mac-address",
+ bd->bi_enetaddr, 6, 1);
+ }
+#endif
+#if defined(CONFIG_HAS_ETH1)
+ path = fdt_getprop(fdt, node, "ethernet1", NULL);
+ if (path) {
+ do_fixup_by_path(fdt, path, "mac-address",
+ bd->bi_enet1addr, 6, 0);
+ do_fixup_by_path(fdt, path, "local-mac-address",
+ bd->bi_enet1addr, 6, 1);
+ }
+#endif
+#if defined(CONFIG_HAS_ETH2)
+ path = fdt_getprop(fdt, node, "ethernet2", NULL);
+ if (path) {
+ do_fixup_by_path(fdt, path, "mac-address",
+ bd->bi_enet2addr, 6, 0);
+ do_fixup_by_path(fdt, path, "local-mac-address",
+ bd->bi_enet2addr, 6, 1);
+ }
+#endif
+#if defined(CONFIG_HAS_ETH3)
+ path = fdt_getprop(fdt, node, "ethernet3", NULL);
+ if (path) {
+ do_fixup_by_path(fdt, path, "mac-address",
+ bd->bi_enet3addr, 6, 0);
+ do_fixup_by_path(fdt, path, "local-mac-address",
+ bd->bi_enet3addr, 6, 1);
+ }
+#endif
+ }
+}
+
#endif /* CONFIG_OF_LIBFDT */
diff --git a/include/fdt_support.h b/include/fdt_support.h
index 0314dfd..150dd2b 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -33,6 +33,7 @@
const void *val, int len, int create);
void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop,
u32 val, int create);
+void fdt_fixup_ethernet(void *fdt, bd_t *bd);
#ifdef CONFIG_OF_HAS_UBOOT_ENV
int fdt_env(void *fdt);