diff --git a/arch/arm/boards/sama5d27-giantboard/Makefile b/arch/arm/boards/sama5d27-giantboard/Makefile
index b08c4a9..f5869c4 100644
--- a/arch/arm/boards/sama5d27-giantboard/Makefile
+++ b/arch/arm/boards/sama5d27-giantboard/Makefile
@@ -1 +1,3 @@
 lwl-y += lowlevel.o
+obj-y += board.o
+bbenv-y += defaultenv-giantboard
diff --git a/arch/arm/boards/sama5d27-giantboard/board.c b/arch/arm/boards/sama5d27-giantboard/board.c
new file mode 100644
index 0000000..1d4453e
--- /dev/null
+++ b/arch/arm/boards/sama5d27-giantboard/board.c
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <init.h>
+#include <envfs.h>
+#include <bbu.h>
+
+static int giantboard_device_init(void)
+{
+	bbu_register_std_file_update("microSD", BBU_HANDLER_FLAG_DEFAULT,
+				     "/mnt/mmc1.0/barebox.bin",
+				     filetype_arm_barebox);
+
+	defaultenv_append_directory(defaultenv_giantboard);
+
+	return 0;
+}
+device_initcall(giantboard_device_init);
diff --git a/arch/arm/boards/sama5d27-giantboard/defaultenv-giantboard/nv/boot.default b/arch/arm/boards/sama5d27-giantboard/defaultenv-giantboard/nv/boot.default
new file mode 100644
index 0000000..646f435
--- /dev/null
+++ b/arch/arm/boards/sama5d27-giantboard/defaultenv-giantboard/nv/boot.default
@@ -0,0 +1 @@
+mmc1
diff --git a/arch/arm/dts/at91-sama5d27_giantboard.dts b/arch/arm/dts/at91-sama5d27_giantboard.dts
index 6ba094c..2ba3ff2 100644
--- a/arch/arm/dts/at91-sama5d27_giantboard.dts
+++ b/arch/arm/dts/at91-sama5d27_giantboard.dts
@@ -25,6 +25,12 @@
 
 	chosen {
 		stdout-path = &uart1;
+
+		environment {
+			compatible = "barebox,environment";
+			device-path = &sdmmc1;
+			file-path = "barebox.env";
+		};
 	};
 
 	leds {