[U-Boot] [PATCH 2/3] arm: Add support of updating dts before fix-up

[Prabhakar Kushwaha]

"ethernet" node fix-up for device tree happens before Linux boot.

There can be requirement of updating "ethernet" node even before
fix-up. So, add support of updating "ethernet" node.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha at nxp.com>
---
 arch/arm/lib/bootm-fdt.c | 12 ++++++++++++
 include/fdt_support.h    |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/arch/arm/lib/bootm-fdt.c b/arch/arm/lib/bootm-fdt.c
index eaa817b..fcc2a0e 100644
--- a/arch/arm/lib/bootm-fdt.c
+++ b/arch/arm/lib/bootm-fdt.c
@@ -25,6 +25,13 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#ifdef CONFIG_FMAN_ENET
+__weak int fdt_update_ethernet_dt(void *blob)
+{
+	return 0;
+}
+#endif
+
 int arch_fixup_fdt(void *blob)
 {
 	int ret = 0;
@@ -64,5 +71,10 @@ int arch_fixup_fdt(void *blob)
 #endif
 #endif
 
+#ifdef CONFIG_FMAN_ENET
+	ret = fdt_update_ethernet_dt(blob);
+	if (ret)
+		return ret;
+#endif
 	return 0;
 }
diff --git a/include/fdt_support.h b/include/fdt_support.h
index 2bca4d7..1e1f8f7 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -272,4 +272,7 @@ int fdt_overlay_apply_verbose(void *fdt, void *fdto);
 int fdtdec_get_int(const void *blob, int node, const char *prop_name,
 		int default_val);
 #endif
+#ifdef CONFIG_FMAN_ENET
+int fdt_update_ethernet_dt(void *blob);
+#endif
 #endif /* ifndef __FDT_SUPPORT_H */
-- 
2.7.4