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>

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>
Kumar Gala
1 parent dbaf07ce62
Showing 2 changed files with 47 additions and 0 deletions Side-by-side Diff
common/fdt_support.c
include/fdt_support.h
@@ -386,5 +386,51 @@
 	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 */
@@ -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);
...	...	@@ -386,5 +386,51 @@
386	386	do_fixup_by_path(fdt, path, prop, &val, sizeof(val), create);
387	387	}
388	388
	389	+void fdt_fixup_ethernet(void fdt, bd_t bd)
	390	+{
	391	+ int node;
	392	+ const char *path;
	393	+
	394	+ node = fdt_path_offset(fdt, "/aliases");
	395	+ if (node >= 0) {
	396	+#if defined(CONFIG_HAS_ETH0)
	397	+ path = fdt_getprop(fdt, node, "ethernet0", NULL);
	398	+ if (path) {
	399	+ do_fixup_by_path(fdt, path, "mac-address",
	400	+ bd->bi_enetaddr, 6, 0);
	401	+ do_fixup_by_path(fdt, path, "local-mac-address",
	402	+ bd->bi_enetaddr, 6, 1);
	403	+ }
	404	+#endif
	405	+#if defined(CONFIG_HAS_ETH1)
	406	+ path = fdt_getprop(fdt, node, "ethernet1", NULL);
	407	+ if (path) {
	408	+ do_fixup_by_path(fdt, path, "mac-address",
	409	+ bd->bi_enet1addr, 6, 0);
	410	+ do_fixup_by_path(fdt, path, "local-mac-address",
	411	+ bd->bi_enet1addr, 6, 1);
	412	+ }
	413	+#endif
	414	+#if defined(CONFIG_HAS_ETH2)
	415	+ path = fdt_getprop(fdt, node, "ethernet2", NULL);
	416	+ if (path) {
	417	+ do_fixup_by_path(fdt, path, "mac-address",
	418	+ bd->bi_enet2addr, 6, 0);
	419	+ do_fixup_by_path(fdt, path, "local-mac-address",
	420	+ bd->bi_enet2addr, 6, 1);
	421	+ }
	422	+#endif
	423	+#if defined(CONFIG_HAS_ETH3)
	424	+ path = fdt_getprop(fdt, node, "ethernet3", NULL);
	425	+ if (path) {
	426	+ do_fixup_by_path(fdt, path, "mac-address",
	427	+ bd->bi_enet3addr, 6, 0);
	428	+ do_fixup_by_path(fdt, path, "local-mac-address",
	429	+ bd->bi_enet3addr, 6, 1);
	430	+ }
	431	+#endif
	432	+ }
	433	+}
	434	+
389	435	#endif /* CONFIG_OF_LIBFDT */
...	...	@@ -33,6 +33,7 @@
33	33	const void *val, int len, int create);
34	34	void do_fixup_by_path_u32(void fdt, const char path, const char *prop,
35	35	u32 val, int create);
	36	+void fdt_fixup_ethernet(void fdt, bd_t bd);
36	37
37	38	#ifdef CONFIG_OF_HAS_UBOOT_ENV
38	39	int fdt_env(void *fdt);