diff --git a/arch/arm/mach-at91/board-dt-rm9200.c b/arch/arm/mach-at91/board-dt-rm9200.c
index 5f82a65153e1..0455c96d32b1 100644
--- a/arch/arm/mach-at91/board-dt-rm9200.c
+++ b/arch/arm/mach-at91/board-dt-rm9200.c
@@ -40,7 +40,7 @@ static void __init rm9200_dt_device_init(void)
 
 
 
-static const char *at91rm9200_dt_board_compat[] __initdata = {
+static const char *at91rm9200_dt_board_compat[] __initconst = {
 	"atmel,at91rm9200",
 	NULL
 };
diff --git a/arch/arm/mach-at91/board-dt-sam9.c b/arch/arm/mach-at91/board-dt-sam9.c
index c8252ddac6f0..a648d090d74a 100644
--- a/arch/arm/mach-at91/board-dt-sam9.c
+++ b/arch/arm/mach-at91/board-dt-sam9.c
@@ -30,7 +30,7 @@ static void __init sam9_dt_device_init(void)
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
-static const char *at91_dt_board_compat[] __initdata = {
+static const char *at91_dt_board_compat[] __initconst = {
 	"atmel,at91sam9",
 	NULL
 };