diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
new file mode 100644
index 0000000000000000000000000000000000000000..db6a45202f26b44c6911c359902ad5e0504cbc25
--- /dev/null
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -0,0 +1,106 @@
+/*
+ * at91sam9g45.dtsi - Device Tree Include file for AT91SAM9G45 family SoC
+ * applies to AT91SAM9G45, AT91SAM9M10,
+ * AT91SAM9G46, AT91SAM9M11 SoC
+ *
+ * Copyright (C) 2011 Atmel,
+ * 2011 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9G45 family SoC";
+ compatible = "atmel,at91sam9g45";
+ interrupt-parent = <&aic>;
+
+ aliases {
+ serial0 = &dbgu;
+ serial1 = &usart0;
+ serial2 = &usart1;
+ serial3 = &usart2;
+ serial4 = &usart3;
+ };
+ cpus {
+ cpu@0 {
+ compatible = "arm,arm926ejs";
+ };
+ };
+
+ memory@70000000 {
+ reg = <0x70000000 0x10000000>;
+ };
+
+ ahb {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ apb {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ aic: interrupt-controller@fffff000 {
+ #interrupt-cells = <1>;
+ compatible = "atmel,at91rm9200-aic";
+ interrupt-controller;
+ interrupt-parent;
+ reg = <0xfffff000 0x200>;
+ };
+
+ dma: dma-controller@ffffec00 {
+ compatible = "atmel,at91sam9g45-dma";
+ reg = <0xffffec00 0x200>;
+ interrupts = <21>;
+ };
+
+ dbgu: serial@ffffee00 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xffffee00 0x200>;
+ interrupts = <1>;
+ status = "disabled";
+ };
+
+ usart0: serial@fff8c000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfff8c000 0x200>;
+ interrupts = <7>;
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ status = "disabled";
+ };
+
+ usart1: serial@fff90000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfff90000 0x200>;
+ interrupts = <8>;
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ status = "disabled";
+ };
+
+ usart2: serial@fff94000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfff94000 0x200>;
+ interrupts = <9>;
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ status = "disabled";
+ };
+
+ usart3: serial@fff98000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfff98000 0x200>;
+ interrupts = <10>;
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ status = "disabled";
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
new file mode 100644
index 0000000000000000000000000000000000000000..85b34f59cd82eaf0fe55d0bc5d47b19c0144783e
--- /dev/null
+++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
@@ -0,0 +1,35 @@
+/*
+ * at91sam9m10g45ek.dts - Device Tree file for AT91SAM9M10G45-EK board
+ *
+ * Copyright (C) 2011 Atmel,
+ * 2011 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+/dts-v1/;
+/include/ "at91sam9g45.dtsi"
+
+/ {
+ model = "Atmel AT91SAM9M10G45-EK";
+ compatible = "atmel,at91sam9m10g45ek", "atmel,at91sam9g45", "atmel,at91sam9";
+
+ chosen {
+ bootargs = "mem=64M console=ttyS0,115200 mtdparts=atmel_nand:4M(bootstrap/uboot/kernel)ro,60M(rootfs),-(data) root=/dev/mtdblock1 rw rootfstype=jffs2";
+ };
+
+ memory@70000000 {
+ reg = <0x70000000 0x4000000>;
+ };
+
+ ahb {
+ apb {
+ dbgu: serial@ffffee00 {
+ status = "okay";
+ };
+
+ usart1: serial@fff90000 {
+ status = "okay";
+ };
+ };
+ };
+};
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 22484670e7ba60948d75aeb3af23009795a2fe37..4b59d96e1cd847d1f5c42f923ddb0f7db605867c 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -442,6 +442,17 @@ endif
# ----------------------------------------------------------
+comment "Generic Board Type"
+
+config MACH_AT91SAM_DT
+ bool "Atmel AT91SAM Evaluation Kits with device-tree support"
+ select USE_OF
+ help
+ Select this if you want to experiment device-tree with
+ an Atmel Evaluation Kit.
+
+# ----------------------------------------------------------
+
comment "AT91 Board Options"
config MTD_AT91_DATAFLASH_CARD
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index bf57e8b1c9d0b513e604ed356d391a095cbbf10e..3ff245ebcad16f9bf56a50039640c3b61e6bb621 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -74,6 +74,9 @@ obj-$(CONFIG_MACH_SNAPPER_9260) += board-snapper9260.o
# AT91SAM9G45 board-specific support
obj-$(CONFIG_MACH_AT91SAM9M10G45EK) += board-sam9m10g45ek.o
+# AT91SAM board with device-tree
+obj-$(CONFIG_MACH_AT91SAM_DT) += board-dt.o
+
# AT91CAP9 board-specific support
obj-$(CONFIG_MACH_AT91CAP9ADK) += board-cap9adk.o
diff --git a/arch/arm/mach-at91/Makefile.boot b/arch/arm/mach-at91/Makefile.boot
index 3462b815054ace1695cfe1f5f9bddc3358e4d513..d2788636805c62133808c553478befda3d894e26 100644
--- a/arch/arm/mach-at91/Makefile.boot
+++ b/arch/arm/mach-at91/Makefile.boot
@@ -16,3 +16,5 @@ else
params_phys-y := 0x20000100
initrd_phys-y := 0x20410000
endif
+
+dtb-$(CONFIG_MACH_AT91SAM_DT) += at91sam9m10g45ek.dtb
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index e04c5fb6f1ee36bd4e652dc3640f776fd31a9bf4..8baf5a1ed1673cd39aa3b04048153fc2380c9a9e 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -215,6 +215,12 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tcb0_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
+ /* more usart lookup table for DT entries */
+ CLKDEV_CON_DEV_ID("usart", "ffffee00.serial", &mck),
+ CLKDEV_CON_DEV_ID("usart", "fff8c000.serial", &usart0_clk),
+ CLKDEV_CON_DEV_ID("usart", "fff90000.serial", &usart1_clk),
+ CLKDEV_CON_DEV_ID("usart", "fff94000.serial", &usart2_clk),
+ CLKDEV_CON_DEV_ID("usart", "fff98000.serial", &usart3_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c
new file mode 100644
index 0000000000000000000000000000000000000000..33a0d8b549b46eae346ad469df4ec1c5778982b8
--- /dev/null
+++ b/arch/arm/mach-at91/board-dt.c
@@ -0,0 +1,122 @@
+/*
+ * Setup code for AT91SAM Evaluation Kits with Device Tree support
+ *
+ * Covers: * AT91SAM9G45-EKES board
+ * * AT91SAM9M10-EKES board
+ * * AT91SAM9M10G45-EK board
+ *
+ * Copyright (C) 2011 Atmel,
+ * 2011 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/irqdomain.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+
+#include <mach/hardware.h>
+#include <mach/board.h>
+#include <mach/system_rev.h>
+#include <mach/at91sam9_smc.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include "sam9_smc.h"
+#include "generic.h"
+
+
+static void __init ek_init_early(void)
+{
+ /* Initialize processor: 12.000 MHz crystal */
+ at91_initialize(12000000);
+
+ /* DGBU on ttyS0. (Rx & Tx only) */
+ at91_register_uart(0, 0, 0);
+
+ /* set serial console to ttyS0 (ie, DBGU) */
+ at91_set_serial_console(0);
+}
+
+/* det_pin is not connected */
+static struct atmel_nand_data __initdata ek_nand_data = {
+ .ale = 21,
+ .cle = 22,
+ .rdy_pin = AT91_PIN_PC8,
+ .enable_pin = AT91_PIN_PC14,
+};
+
+static struct sam9_smc_config __initdata ek_nand_smc_config = {
+ .ncs_read_setup = 0,
+ .nrd_setup = 2,
+ .ncs_write_setup = 0,
+ .nwe_setup = 2,
+
+ .ncs_read_pulse = 4,
+ .nrd_pulse = 4,
+ .ncs_write_pulse = 4,
+ .nwe_pulse = 4,
+
+ .read_cycle = 7,
+ .write_cycle = 7,
+
+ .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
+ .tdf_cycles = 3,
+};
+
+static void __init ek_add_device_nand(void)
+{
+ ek_nand_data.bus_width_16 = board_have_nand_16bit();
+ /* setup bus-width (8 or 16) */
+ if (ek_nand_data.bus_width_16)
+ ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
+ else
+ ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
+
+ /* configure chip-select 3 (NAND) */
+ sam9_smc_configure(3, &ek_nand_smc_config);
+
+ at91_add_device_nand(&ek_nand_data);
+}
+
+static const struct of_device_id aic_of_match[] __initconst = {
+ { .compatible = "atmel,at91rm9200-aic", },
+ {},
+};
+
+static void __init at91_dt_init_irq(void)
+{
+ irq_domain_generate_simple(aic_of_match, 0xfffff000, 0);
+ at91_init_irq_default();
+}
+
+static void __init at91_dt_device_init(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+
+ /* NAND */
+ ek_add_device_nand();
+}
+
+static const char *at91_dt_board_compat[] __initdata = {
+ "atmel,at91sam9m10g45ek",
+ NULL
+};
+
+DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)")
+ /* Maintainer: Atmel */
+ .timer = &at91sam926x_timer,
+ .map_io = at91_map_io,
+ .init_early = ek_init_early,
+ .init_irq = at91_dt_init_irq,
+ .init_machine = at91_dt_device_init,
+ .dt_compat = at91_dt_board_compat,
+MACHINE_END