[U-Boot-Users] [PATCH] Add fdt_fixup_ethernet helper to set mac addresses

[Kumar Gala]

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 at kernel.crashing.org>
---
 common/fdt_support.c  |   38 ++++++++++++++++++++++++++++++++++++++
 include/fdt_support.h |    1 +
 2 files changed, 39 insertions(+), 0 deletions(-)

diff --git a/common/fdt_support.c b/common/fdt_support.c
index d5743b4..0e61f6d 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -386,4 +386,42 @@ void do_fixup_by_path_u32(void *fdt, const char *path, const char *prop,
 	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 @@ void do_fixup_by_path(void *fdt, const char *path, const char *prop,
 		      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);
-- 
1.5.3.4