3 files changed, 22 insertions, 1 deletions
diff --git a/include/configs/mvebu_armada-37xx.h b/include/configs/mvebu_armada-37xx.h
index 0d585606a7..2ad4325eaf 100644
--- a/include/configs/mvebu_armada-37xx.h
+++ b/include/configs/mvebu_armada-37xx.h
@@ -58,6 +58,11 @@
 #define CONFIG_MTD_PARTITIONS		/* required for UBI partition support */
 
 /*
+ * Environment
+ */
+#define DEFAULT_ENV_IS_RW		/* required for configuring default fdtfile= */
+
+/*
  * Ethernet Driver configuration
  */
 #define CONFIG_ARP_TIMEOUT	200
@@ -87,6 +92,15 @@
 
 #include <config_distro_bootcmd.h>
 
+/* filler for default values filled by board_early_init_f() */
+#define ENV_RW_FILLER \
+	"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" /* for ethaddr= */ \
+	"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" /* for eth1addr= */ \
+	"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" /* for eth2addr= */ \
+	"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" /* for eth3addr= */ \
+	"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" /* for fdtfile= */ \
+	""
+
 /* fdt_addr and kernel_addr are needed for existing distribution boot scripts */
 #define CONFIG_EXTRA_ENV_SETTINGS	\
 	"scriptaddr=0x6d00000\0"	\
@@ -96,6 +110,7 @@
 	"kernel_addr=0x7000000\0"	\
 	"kernel_addr_r=0x7000000\0"	\
 	"ramdisk_addr_r=0xa000000\0"	\
-	BOOTENV
+	BOOTENV \
+	ENV_RW_FILLER
 
 #endif /* _CONFIG_MVEBU_ARMADA_37XX_H */
diff --git a/include/env_default.h b/include/env_default.h
index 8a0c3057f0..ea31a8eddf 100644
--- a/include/env_default.h
+++ b/include/env_default.h
@@ -19,6 +19,8 @@ env_t embedded_environment __UBOOT_ENV_SECTION__(environment) = {
 	{
 #elif defined(DEFAULT_ENV_INSTANCE_STATIC)
 static char default_environment[] = {
+#elif defined(DEFAULT_ENV_IS_RW)
+uchar default_environment[] = {
 #else
 const uchar default_environment[] = {
 #endif
diff --git a/include/env_internal.h b/include/env_internal.h
index b26dc6239c..708c833a55 100644
--- a/include/env_internal.h
+++ b/include/env_internal.h
@@ -111,7 +111,11 @@ typedef struct environment_s {
 extern env_t embedded_environment;
 #endif /* ENV_IS_EMBEDDED */
 
+#ifdef DEFAULT_ENV_IS_RW
+extern unsigned char default_environment[];
+#else
 extern const unsigned char default_environment[];
+#endif
 
 #ifndef DO_DEPS_ONLY