arm: Add support of updating dts before fix-up

"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@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

diff --git a/arch/arm/lib/bootm-fdt.c b/arch/arm/lib/bootm-fdt.c
index eaa817b9ac8ef08877cc1652a5fc1ee1e4aefecf..fcc2a0e2146eb7312f3f15d993c68b3bb465ae7e 100644 (file)
--- 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 e0f908636c2c9c9b935faff8bd252f7ec8fc2770..f00fadcddbf226ce48080ff4906f6849147dc218 100644 (file)
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -290,4 +290,7 @@ 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 */