[v5,6/9] at91: dt: sam9261: Device Tree support for the at91sam9261ek

Commit Message

Jean-Jacques Hiblot March 3, 2014, 10:05 a.m. UTC

This patch implements a DTS to boot a at91sam9261ek with a dt-enabled
kernel (at91_dt_defconfig).
supported features are:
* dbgu
* lcdc
* usb host
* usb gadget,
* spi dataflash
* nand flash
* touchscreen
* leds
* user buttons

In the TODO list:
* dm9000 (ethernet)
* audio
* mmc

Signed-off-by: Jean-Jacques Hiblot <[e-mail]>
---
 arch/arm/boot/dts/Makefile          |   2 +
 arch/arm/boot/dts/at91sam9261ek.dts | 204 ++++++++++++++++++++++++++++++++++++
 2 files changed, 206 insertions(+)
 create mode 100644 arch/arm/boot/dts/at91sam9261ek.dts

Comments

Alexandre Belloni March 3, 2014, 6:38 p.m. UTC | #1

On 03/03/2014 at 11:05:59 +0100, Jean-Jacques Hiblot wrote :
> This patch implements a DTS to boot a at91sam9261ek with a dt-enabled
> kernel (at91_dt_defconfig).
> supported features are:
> * dbgu
> * lcdc
> * usb host
> * usb gadget,
> * spi dataflash
> * nand flash
> * touchscreen
> * leds
> * user buttons
> 
> In the TODO list:
> * dm9000 (ethernet)
> * audio
> * mmc
> 
> Signed-off-by: Jean-Jacques Hiblot <[e-mail]>
> ---
>  arch/arm/boot/dts/Makefile          |   2 +
>  arch/arm/boot/dts/at91sam9261ek.dts | 204 ++++++++++++++++++++++++++++++++++++
>  2 files changed, 206 insertions(+)
>  create mode 100644 arch/arm/boot/dts/at91sam9261ek.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 0320303..f496473 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -12,6 +12,8 @@ dtb-$(CONFIG_ARCH_AT91) += ethernut5.dtb
>  dtb-$(CONFIG_ARCH_AT91) += evk-pro3.dtb
>  dtb-$(CONFIG_ARCH_AT91) += tny_a9260.dtb
>  dtb-$(CONFIG_ARCH_AT91) += usb_a9260.dtb
> +# sam9261
> +dtb-$(CONFIG_ARCH_AT91) += at91sam9261ek.dtb
>  # sam9263
>  dtb-$(CONFIG_ARCH_AT91) += at91sam9263ek.dtb
>  dtb-$(CONFIG_ARCH_AT91) += tny_a9263.dtb
> diff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts
> new file mode 100644
> index 0000000..03adb7f
> --- /dev/null
> +++ b/arch/arm/boot/dts/at91sam9261ek.dts
> @@ -0,0 +1,204 @@
> +/*
> + * at91sam9261ek.dts - Device Tree file for Atmel at91sam9261 reference board
> + *
> + *  Copyright (C) 2013 Jean-Jacques Hiblot <[e-mail]>
> + *
> + * Licensed under GPLv2 only.
> + */
> +/dts-v1/;
> +#include "at91sam9261.dtsi"
> +
> +/ {
> +	model = "Atmel at91sam9261ek";
> +	compatible = "atmel,at91sam9261ek", "atmel,at91sam9261", "atmel,at91sam9";
> +
> +	chosen {
> +		bootargs = "console=ttyS0,115200 rootfstype=ubifs ubi.mtd=5 root=ubi0:rootfs rw";
> +	};
> +
> +	memory {
> +		reg = <0x20000000 0x4000000>;
> +	};
> +
> +	clocks {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		main_clock: clock@0 {
> +			compatible = "atmel,osc", "fixed-clock";
> +			clock-frequency = <18432000>;
> +		};
> +	};
> +
> +	ahb {
> +		usb0: ohci@00500000 {
> +			status = "okay";
> +		};
> +
> +		fb0: fb@0x00600000 {
> +			display = <&display0>;
> +			atmel,power-control-gpio = <&pioA 12 GPIO_ACTIVE_LOW>;
> +			status = "okay";
> +
> +			display0: display {
> +				bits-per-pixel = <16>;
> +				atmel,lcdcon-backlight;
> +				atmel,dmacon = <0x1>;
> +				atmel,lcdcon2 = <0x80008002>;
> +				atmel,guard-time = <1>;
> +				atmel,lcd-wiring-mode = "BRG";
> +
> +				display-timings {
> +					native-mode = <&timing0>;
> +					timing0: timing0 {
> +						clock-frequency = <4965000>;
> +						hactive = <240>;
> +						vactive = <320>;
> +						hback-porch = <1>;
> +						hfront-porch = <33>;
> +						vback-porch = <1>;
> +						vfront-porch = <0>;
> +						hsync-len = <5>;
> +						vsync-len = <1>;
> +						hsync-active = <1>;
> +						vsync-active = <1>;
> +					};
> +				};
> +			};
> +		};
> +
> +		nand0: nand@40000000 {
> +			nand-bus-width = <8>;
> +			nand-ecc-mode = "soft";
> +			nand-on-flash-bbt;
> +			status = "okay";
> +
> +			at91bootstrap@0 {
> +				label = "at91bootstrap";
> +				reg = <0x0 0x40000>;
> +			};
> +
> +			bootloader@40000 {
> +				label = "bootloader";
> +				reg = <0x40000 0x80000>;
> +			};
> +
> +			bootloaderenv@c0000 {
> +				label = "bootloader env";
> +				reg = <0xc0000 0xc0000>;
> +			};
> +
> +			dtb@180000 {
> +				label = "device tree";
> +				reg = <0x180000 0x80000>;
> +			};
> +
> +			kernel@200000 {
> +				label = "kernel";
> +				reg = <0x200000 0x600000>;
> +			};
> +
> +			rootfs@800000 {
> +				label = "rootfs";
> +				reg = <0x800000 0x0f800000>;
> +			};
> +		};
> +
> +		apb {
> +			usb1: gadget@fffa4000 {
> +				atmel,vbus-gpio = <&pioB 29 GPIO_ACTIVE_HIGH>;
> +				status = "okay";
> +			};

Nit: add a white line between nodes please, same for a few nodes below.

> +			spi0: spi@fffc8000 {
> +				cs-gpios = <&pioA 3 0>, <0>, <&pioA 28 0>, <0>;
> +				status = "okay";
> +
> +				mtd_dataflash@0 {
> +					compatible = "atmel,at45", "atmel,dataflash";
> +					reg = <0>;
> +					spi-max-frequency = <15000000>;
> +				};
> +				tsc2046@0 {
> +					reg = <2>;
> +					compatible = "ti,ads7843";
> +					interrupts-extended = <&pioC 2 IRQ_TYPE_EDGE_BOTH>;
> +					spi-max-frequency = <3000000>;
> +					pendown-gpio = <&pioC 2 GPIO_ACTIVE_HIGH>;
> +
> +					ti,x-min = /bits/ 16 <150>;
> +					ti,x-max = /bits/ 16 <3830>;
> +					ti,y-min = /bits/ 16 <190>;
> +					ti,y-max = /bits/ 16 <3830>;
> +					ti,vref-delay-usecs = /bits/ 16 <450>;
> +					ti,x-plate-ohms = /bits/ 16 <450>;
> +					ti,y-plate-ohms = /bits/ 16 <250>;
> +					ti,pressure-max = /bits/ 16 <15000>;
> +					ti,debounce-rep = /bits/ 16 <0>;
> +					ti,debounce-tol = /bits/ 16 <65535>;
> +					ti,debounce-max = /bits/ 16 <1>;
> +
> +					linux,wakeup;
> +				};
> +			};
> +
> +			dbgu: serial@fffff200 {
> +				status = "okay";
> +			};
> +
> +			watchdog@fffffd40 {
> +				status = "okay";
> +			};
> +
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		ds8 {
> +			label = "ds8";
> +			gpios = <&pioA 13 GPIO_ACTIVE_LOW>;
> +			linux,default-trigger = "none";
> +		};
> +		ds7 {
> +			label = "ds7";
> +			gpios = <&pioA 14 GPIO_ACTIVE_LOW>;
> +			linux,default-trigger = "nand-disk";
> +		};
> +		ds1 {
> +			label = "ds1";
> +			gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
> +			linux,default-trigger = "heartbeat";
> +		};
> +	};
> +
> +	gpio_keys {
> +		compatible = "gpio-keys";
> +
> +		button_0 {
> +			label = "button_0";
> +			gpios = <&pioA 27 GPIO_ACTIVE_LOW>;
> +			linux,code = <256>;
> +			gpio-key,wakeup;
> +		};
> +		button_1 {
> +			label = "button_1";
> +			gpios = <&pioA 26 GPIO_ACTIVE_LOW>;
> +			linux,code = <257>;
> +			gpio-key,wakeup;
> +		};
> +		button_2 {
> +			label = "button_2";
> +			gpios = <&pioA 25 GPIO_ACTIVE_LOW>;
> +			linux,code = <258>;
> +			gpio-key,wakeup;
> +		};
> +		button_3 {
> +			label = "button_3";
> +			gpios = <&pioA 24 GPIO_ACTIVE_LOW>;
> +			linux,code = <259>;
> +			gpio-key,wakeup;
> +		};
> +	};
> +};
> -- 
> 1.9.0
>

Nicolas Ferre March 12, 2014, 1:35 p.m. UTC | #2

On 03/03/2014 19:38, Alexandre Belloni :
> On 03/03/2014 at 11:05:59 +0100, Jean-Jacques Hiblot wrote :
>> This patch implements a DTS to boot a at91sam9261ek with a dt-enabled
>> kernel (at91_dt_defconfig).
>> supported features are:
>> * dbgu
>> * lcdc
>> * usb host
>> * usb gadget,
>> * spi dataflash
>> * nand flash
>> * touchscreen
>> * leds
>> * user buttons
>>
>> In the TODO list:
>> * dm9000 (ethernet)
>> * audio
>> * mmc
>>
>> Signed-off-by: Jean-Jacques Hiblot <[e-mail]>
>> ---
>>  arch/arm/boot/dts/Makefile          |   2 +
>>  arch/arm/boot/dts/at91sam9261ek.dts | 204 ++++++++++++++++++++++++++++++++++++
>>  2 files changed, 206 insertions(+)
>>  create mode 100644 arch/arm/boot/dts/at91sam9261ek.dts
>>
>> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
>> index 0320303..f496473 100644
>> --- a/arch/arm/boot/dts/Makefile
>> +++ b/arch/arm/boot/dts/Makefile
>> @@ -12,6 +12,8 @@ dtb-$(CONFIG_ARCH_AT91) += ethernut5.dtb
>>  dtb-$(CONFIG_ARCH_AT91) += evk-pro3.dtb
>>  dtb-$(CONFIG_ARCH_AT91) += tny_a9260.dtb
>>  dtb-$(CONFIG_ARCH_AT91) += usb_a9260.dtb
>> +# sam9261
>> +dtb-$(CONFIG_ARCH_AT91) += at91sam9261ek.dtb
>>  # sam9263
>>  dtb-$(CONFIG_ARCH_AT91) += at91sam9263ek.dtb
>>  dtb-$(CONFIG_ARCH_AT91) += tny_a9263.dtb
>> diff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts
>> new file mode 100644
>> index 0000000..03adb7f
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/at91sam9261ek.dts
>> @@ -0,0 +1,204 @@
>> +/*
>> + * at91sam9261ek.dts - Device Tree file for Atmel at91sam9261 reference board
>> + *
>> + *  Copyright (C) 2013 Jean-Jacques Hiblot <[e-mail]>
>> + *
>> + * Licensed under GPLv2 only.
>> + */
>> +/dts-v1/;
>> +#include "at91sam9261.dtsi"
>> +
>> +/ {
>> +	model = "Atmel at91sam9261ek";
>> +	compatible = "atmel,at91sam9261ek", "atmel,at91sam9261", "atmel,at91sam9";
>> +
>> +	chosen {
>> +		bootargs = "console=ttyS0,115200 rootfstype=ubifs ubi.mtd=5 root=ubi0:rootfs rw";
>> +	};
>> +
>> +	memory {
>> +		reg = <0x20000000 0x4000000>;
>> +	};
>> +
>> +	clocks {
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
>> +		ranges;
>> +
>> +		main_clock: clock@0 {
>> +			compatible = "atmel,osc", "fixed-clock";
>> +			clock-frequency = <18432000>;
>> +		};
>> +	};
>> +
>> +	ahb {
>> +		usb0: ohci@00500000 {
>> +			status = "okay";
>> +		};
>> +
>> +		fb0: fb@0x00600000 {
>> +			display = <&display0>;
>> +			atmel,power-control-gpio = <&pioA 12 GPIO_ACTIVE_LOW>;
>> +			status = "okay";
>> +
>> +			display0: display {
>> +				bits-per-pixel = <16>;
>> +				atmel,lcdcon-backlight;
>> +				atmel,dmacon = <0x1>;
>> +				atmel,lcdcon2 = <0x80008002>;
>> +				atmel,guard-time = <1>;
>> +				atmel,lcd-wiring-mode = "BRG";
>> +
>> +				display-timings {
>> +					native-mode = <&timing0>;
>> +					timing0: timing0 {
>> +						clock-frequency = <4965000>;
>> +						hactive = <240>;
>> +						vactive = <320>;
>> +						hback-porch = <1>;
>> +						hfront-porch = <33>;
>> +						vback-porch = <1>;
>> +						vfront-porch = <0>;
>> +						hsync-len = <5>;
>> +						vsync-len = <1>;
>> +						hsync-active = <1>;
>> +						vsync-active = <1>;
>> +					};
>> +				};
>> +			};
>> +		};
>> +
>> +		nand0: nand@40000000 {
>> +			nand-bus-width = <8>;
>> +			nand-ecc-mode = "soft";
>> +			nand-on-flash-bbt;
>> +			status = "okay";
>> +
>> +			at91bootstrap@0 {
>> +				label = "at91bootstrap";
>> +				reg = <0x0 0x40000>;
>> +			};
>> +
>> +			bootloader@40000 {
>> +				label = "bootloader";
>> +				reg = <0x40000 0x80000>;
>> +			};
>> +
>> +			bootloaderenv@c0000 {
>> +				label = "bootloader env";
>> +				reg = <0xc0000 0xc0000>;
>> +			};
>> +
>> +			dtb@180000 {
>> +				label = "device tree";
>> +				reg = <0x180000 0x80000>;
>> +			};
>> +
>> +			kernel@200000 {
>> +				label = "kernel";
>> +				reg = <0x200000 0x600000>;
>> +			};
>> +
>> +			rootfs@800000 {
>> +				label = "rootfs";
>> +				reg = <0x800000 0x0f800000>;
>> +			};
>> +		};
>> +
>> +		apb {
>> +			usb1: gadget@fffa4000 {
>> +				atmel,vbus-gpio = <&pioB 29 GPIO_ACTIVE_HIGH>;
>> +				status = "okay";
>> +			};
> 
> Nit: add a white line between nodes please, same for a few nodes below.

Done while including in the at91-3.15-cleanup branch.

> 
>> +			spi0: spi@fffc8000 {
>> +				cs-gpios = <&pioA 3 0>, <0>, <&pioA 28 0>, <0>;
>> +				status = "okay";
>> +
>> +				mtd_dataflash@0 {
>> +					compatible = "atmel,at45", "atmel,dataflash";
>> +					reg = <0>;
>> +					spi-max-frequency = <15000000>;
>> +				};
>> +				tsc2046@0 {
>> +					reg = <2>;
>> +					compatible = "ti,ads7843";
>> +					interrupts-extended = <&pioC 2 IRQ_TYPE_EDGE_BOTH>;
>> +					spi-max-frequency = <3000000>;
>> +					pendown-gpio = <&pioC 2 GPIO_ACTIVE_HIGH>;
>> +
>> +					ti,x-min = /bits/ 16 <150>;
>> +					ti,x-max = /bits/ 16 <3830>;
>> +					ti,y-min = /bits/ 16 <190>;
>> +					ti,y-max = /bits/ 16 <3830>;
>> +					ti,vref-delay-usecs = /bits/ 16 <450>;
>> +					ti,x-plate-ohms = /bits/ 16 <450>;
>> +					ti,y-plate-ohms = /bits/ 16 <250>;
>> +					ti,pressure-max = /bits/ 16 <15000>;
>> +					ti,debounce-rep = /bits/ 16 <0>;
>> +					ti,debounce-tol = /bits/ 16 <65535>;
>> +					ti,debounce-max = /bits/ 16 <1>;
>> +
>> +					linux,wakeup;
>> +				};
>> +			};
>> +
>> +			dbgu: serial@fffff200 {
>> +				status = "okay";
>> +			};
>> +
>> +			watchdog@fffffd40 {
>> +				status = "okay";
>> +			};
>> +
>> +		};
>> +	};
>> +
>> +	leds {
>> +		compatible = "gpio-leds";
>> +
>> +		ds8 {
>> +			label = "ds8";
>> +			gpios = <&pioA 13 GPIO_ACTIVE_LOW>;
>> +			linux,default-trigger = "none";
>> +		};
>> +		ds7 {
>> +			label = "ds7";
>> +			gpios = <&pioA 14 GPIO_ACTIVE_LOW>;
>> +			linux,default-trigger = "nand-disk";
>> +		};
>> +		ds1 {
>> +			label = "ds1";
>> +			gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
>> +			linux,default-trigger = "heartbeat";
>> +		};
>> +	};
>> +
>> +	gpio_keys {
>> +		compatible = "gpio-keys";
>> +
>> +		button_0 {
>> +			label = "button_0";
>> +			gpios = <&pioA 27 GPIO_ACTIVE_LOW>;
>> +			linux,code = <256>;
>> +			gpio-key,wakeup;
>> +		};
>> +		button_1 {
>> +			label = "button_1";
>> +			gpios = <&pioA 26 GPIO_ACTIVE_LOW>;
>> +			linux,code = <257>;
>> +			gpio-key,wakeup;
>> +		};
>> +		button_2 {
>> +			label = "button_2";
>> +			gpios = <&pioA 25 GPIO_ACTIVE_LOW>;
>> +			linux,code = <258>;
>> +			gpio-key,wakeup;
>> +		};
>> +		button_3 {
>> +			label = "button_3";
>> +			gpios = <&pioA 24 GPIO_ACTIVE_LOW>;
>> +			linux,code = <259>;
>> +			gpio-key,wakeup;
>> +		};
>> +	};
>> +};
>> -- 
>> 1.9.0
>>
>

Jean-Christophe PLAGNIOL-VILLARD March 17, 2014, 11:38 a.m. UTC | #3

On 11:05 Mon 03 Mar     , Jean-Jacques Hiblot wrote:
> This patch implements a DTS to boot a at91sam9261ek with a dt-enabled
> kernel (at91_dt_defconfig).
> supported features are:
> * dbgu
> * lcdc
> * usb host
> * usb gadget,
> * spi dataflash
> * nand flash
> * touchscreen
> * leds
> * user buttons
> 
> In the TODO list:
> * dm9000 (ethernet)
> * audio
> * mmc
> 
> Signed-off-by: Jean-Jacques Hiblot <[e-mail]>
> ---
>  arch/arm/boot/dts/Makefile          |   2 +
>  arch/arm/boot/dts/at91sam9261ek.dts | 204 ++++++++++++++++++++++++++++++++++++
>  2 files changed, 206 insertions(+)
>  create mode 100644 arch/arm/boot/dts/at91sam9261ek.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 0320303..f496473 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -12,6 +12,8 @@ dtb-$(CONFIG_ARCH_AT91) += ethernut5.dtb
>  dtb-$(CONFIG_ARCH_AT91) += evk-pro3.dtb
>  dtb-$(CONFIG_ARCH_AT91) += tny_a9260.dtb
>  dtb-$(CONFIG_ARCH_AT91) += usb_a9260.dtb
> +# sam9261
> +dtb-$(CONFIG_ARCH_AT91) += at91sam9261ek.dtb
>  # sam9263
>  dtb-$(CONFIG_ARCH_AT91) += at91sam9263ek.dtb
>  dtb-$(CONFIG_ARCH_AT91) += tny_a9263.dtb
> diff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts
> new file mode 100644
> index 0000000..03adb7f
> --- /dev/null
> +++ b/arch/arm/boot/dts/at91sam9261ek.dts
> @@ -0,0 +1,204 @@
> +/*
> + * at91sam9261ek.dts - Device Tree file for Atmel at91sam9261 reference board
> + *
> + *  Copyright (C) 2013 Jean-Jacques Hiblot <[e-mail]>
> + *
> + * Licensed under GPLv2 only.
> + */
> +/dts-v1/;
> +#include "at91sam9261.dtsi"
> +
> +/ {
> +	model = "Atmel at91sam9261ek";
> +	compatible = "atmel,at91sam9261ek", "atmel,at91sam9261", "atmel,at91sam9";
> +
> +	chosen {
> +		bootargs = "console=ttyS0,115200 rootfstype=ubifs ubi.mtd=5 root=ubi0:rootfs rw";
> +	};
> +
> +	memory {
> +		reg = <0x20000000 0x4000000>;
> +	};
> +
> +	clocks {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		main_clock: clock@0 {
> +			compatible = "atmel,osc", "fixed-clock";
> +			clock-frequency = <18432000>;
> +		};
> +	};
> +
> +	ahb {
> +		usb0: ohci@00500000 {
> +			status = "okay";
> +		};
> +
> +		fb0: fb@0x00600000 {
> +			display = <&display0>;
> +			atmel,power-control-gpio = <&pioA 12 GPIO_ACTIVE_LOW>;
> +			status = "okay";
> +
> +			display0: display {
> +				bits-per-pixel = <16>;
> +				atmel,lcdcon-backlight;
> +				atmel,dmacon = <0x1>;
> +				atmel,lcdcon2 = <0x80008002>;
> +				atmel,guard-time = <1>;
> +				atmel,lcd-wiring-mode = "BRG";
> +
> +				display-timings {
> +					native-mode = <&timing0>;
> +					timing0: timing0 {
> +						clock-frequency = <4965000>;
> +						hactive = <240>;
> +						vactive = <320>;
> +						hback-porch = <1>;
> +						hfront-porch = <33>;
> +						vback-porch = <1>;
> +						vfront-porch = <0>;
> +						hsync-len = <5>;
> +						vsync-len = <1>;
> +						hsync-active = <1>;
> +						vsync-active = <1>;
> +					};
> +				};
> +			};
> +		};
> +
> +		nand0: nand@40000000 {
> +			nand-bus-width = <8>;
> +			nand-ecc-mode = "soft";
> +			nand-on-flash-bbt;
> +			status = "okay";
> +
> +			at91bootstrap@0 {
> +				label = "at91bootstrap";
> +				reg = <0x0 0x40000>;
> +			};
> +
> +			bootloader@40000 {
> +				label = "bootloader";
> +				reg = <0x40000 0x80000>;
> +			};
> +
> +			bootloaderenv@c0000 {
> +				label = "bootloader env";
> +				reg = <0xc0000 0xc0000>;
> +			};
> +
> +			dtb@180000 {
> +				label = "device tree";
> +				reg = <0x180000 0x80000>;
> +			};
> +
> +			kernel@200000 {
> +				label = "kernel";
> +				reg = <0x200000 0x600000>;
> +			};
> +
> +			rootfs@800000 {
> +				label = "rootfs";
> +				reg = <0x800000 0x0f800000>;
> +			};
> +		};
> +
> +		apb {
> +			usb1: gadget@fffa4000 {
> +				atmel,vbus-gpio = <&pioB 29 GPIO_ACTIVE_HIGH>;
> +				status = "okay";
> +			};
> +			spi0: spi@fffc8000 {
if you use cs-gpios you do not need to respect the hw order but ok just drop
the last 0
> +				cs-gpios = <&pioA 3 0>, <0>, <&pioA 28 0>, <0>;
> +				status = "okay";
> +
> +				mtd_dataflash@0 {
> +					compatible = "atmel,at45", "atmel,dataflash";
> +					reg = <0>;
> +					spi-max-frequency = <15000000>;
> +				};
please add empty line
> +				tsc2046@0 {
> +					reg = <2>;
> +					compatible = "ti,ads7843";
> +					interrupts-extended = <&pioC 2 IRQ_TYPE_EDGE_BOTH>;
> +					spi-max-frequency = <3000000>;
> +					pendown-gpio = <&pioC 2 GPIO_ACTIVE_HIGH>;
> +
> +					ti,x-min = /bits/ 16 <150>;
> +					ti,x-max = /bits/ 16 <3830>;
> +					ti,y-min = /bits/ 16 <190>;
> +					ti,y-max = /bits/ 16 <3830>;
> +					ti,vref-delay-usecs = /bits/ 16 <450>;
> +					ti,x-plate-ohms = /bits/ 16 <450>;
> +					ti,y-plate-ohms = /bits/ 16 <250>;
> +					ti,pressure-max = /bits/ 16 <15000>;
> +					ti,debounce-rep = /bits/ 16 <0>;
> +					ti,debounce-tol = /bits/ 16 <65535>;
> +					ti,debounce-max = /bits/ 16 <1>;
> +
> +					linux,wakeup;
> +				};
> +			};
> +
> +			dbgu: serial@fffff200 {
> +				status = "okay";
> +			};
> +
> +			watchdog@fffffd40 {
> +				status = "okay";
> +			};
> +
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		ds8 {
> +			label = "ds8";
> +			gpios = <&pioA 13 GPIO_ACTIVE_LOW>;
> +			linux,default-trigger = "none";
no-need drop it

please fix the missing empty line
> +		};
> +		ds7 {
> +			label = "ds7";
> +			gpios = <&pioA 14 GPIO_ACTIVE_LOW>;
> +			linux,default-trigger = "nand-disk";
> +		};
> +		ds1 {
> +			label = "ds1";
> +			gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
> +			linux,default-trigger = "heartbeat";
> +		};
> +	};
> +
> +	gpio_keys {
> +		compatible = "gpio-keys";
> +
> +		button_0 {
> +			label = "button_0";
> +			gpios = <&pioA 27 GPIO_ACTIVE_LOW>;
> +			linux,code = <256>;
> +			gpio-key,wakeup;
> +		};
> +		button_1 {
> +			label = "button_1";
> +			gpios = <&pioA 26 GPIO_ACTIVE_LOW>;
> +			linux,code = <257>;
> +			gpio-key,wakeup;
> +		};
> +		button_2 {
> +			label = "button_2";
> +			gpios = <&pioA 25 GPIO_ACTIVE_LOW>;
> +			linux,code = <258>;
> +			gpio-key,wakeup;
> +		};
> +		button_3 {
> +			label = "button_3";
> +			gpios = <&pioA 24 GPIO_ACTIVE_LOW>;
> +			linux,code = <259>;
> +			gpio-key,wakeup;
> +		};
> +	};
> +};
> -- 
> 1.9.0
>

Patch

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 0320303..f496473 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -12,6 +12,8 @@  dtb-$(CONFIG_ARCH_AT91) += ethernut5.dtb
 dtb-$(CONFIG_ARCH_AT91) += evk-pro3.dtb
 dtb-$(CONFIG_ARCH_AT91) += tny_a9260.dtb
 dtb-$(CONFIG_ARCH_AT91) += usb_a9260.dtb
+# sam9261
+dtb-$(CONFIG_ARCH_AT91) += at91sam9261ek.dtb
 # sam9263
 dtb-$(CONFIG_ARCH_AT91) += at91sam9263ek.dtb
 dtb-$(CONFIG_ARCH_AT91) += tny_a9263.dtb
diff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts
new file mode 100644
index 0000000..03adb7f
--- /dev/null
+++ b/arch/arm/boot/dts/at91sam9261ek.dts
@@ -0,0 +1,204 @@ 
+/*
+ * at91sam9261ek.dts - Device Tree file for Atmel at91sam9261 reference board
+ *
+ *  Copyright (C) 2013 Jean-Jacques Hiblot <[e-mail]>
+ *
+ * Licensed under GPLv2 only.
+ */
+/dts-v1/;
+#include "at91sam9261.dtsi"
+
+/ {
+	model = "Atmel at91sam9261ek";
+	compatible = "atmel,at91sam9261ek", "atmel,at91sam9261", "atmel,at91sam9";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 rootfstype=ubifs ubi.mtd=5 root=ubi0:rootfs rw";
+	};
+
+	memory {
+		reg = <0x20000000 0x4000000>;
+	};
+
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		main_clock: clock@0 {
+			compatible = "atmel,osc", "fixed-clock";
+			clock-frequency = <18432000>;
+		};
+	};
+
+	ahb {
+		usb0: ohci@00500000 {
+			status = "okay";
+		};
+
+		fb0: fb@0x00600000 {
+			display = <&display0>;
+			atmel,power-control-gpio = <&pioA 12 GPIO_ACTIVE_LOW>;
+			status = "okay";
+
+			display0: display {
+				bits-per-pixel = <16>;
+				atmel,lcdcon-backlight;
+				atmel,dmacon = <0x1>;
+				atmel,lcdcon2 = <0x80008002>;
+				atmel,guard-time = <1>;
+				atmel,lcd-wiring-mode = "BRG";
+
+				display-timings {
+					native-mode = <&timing0>;
+					timing0: timing0 {
+						clock-frequency = <4965000>;
+						hactive = <240>;
+						vactive = <320>;
+						hback-porch = <1>;
+						hfront-porch = <33>;
+						vback-porch = <1>;
+						vfront-porch = <0>;
+						hsync-len = <5>;
+						vsync-len = <1>;
+						hsync-active = <1>;
+						vsync-active = <1>;
+					};
+				};
+			};
+		};
+
+		nand0: nand@40000000 {
+			nand-bus-width = <8>;
+			nand-ecc-mode = "soft";
+			nand-on-flash-bbt;
+			status = "okay";
+
+			at91bootstrap@0 {
+				label = "at91bootstrap";
+				reg = <0x0 0x40000>;
+			};
+
+			bootloader@40000 {
+				label = "bootloader";
+				reg = <0x40000 0x80000>;
+			};
+
+			bootloaderenv@c0000 {
+				label = "bootloader env";
+				reg = <0xc0000 0xc0000>;
+			};
+
+			dtb@180000 {
+				label = "device tree";
+				reg = <0x180000 0x80000>;
+			};
+
+			kernel@200000 {
+				label = "kernel";
+				reg = <0x200000 0x600000>;
+			};
+
+			rootfs@800000 {
+				label = "rootfs";
+				reg = <0x800000 0x0f800000>;
+			};
+		};
+
+		apb {
+			usb1: gadget@fffa4000 {
+				atmel,vbus-gpio = <&pioB 29 GPIO_ACTIVE_HIGH>;
+				status = "okay";
+			};
+			spi0: spi@fffc8000 {
+				cs-gpios = <&pioA 3 0>, <0>, <&pioA 28 0>, <0>;
+				status = "okay";
+
+				mtd_dataflash@0 {
+					compatible = "atmel,at45", "atmel,dataflash";
+					reg = <0>;
+					spi-max-frequency = <15000000>;
+				};
+				tsc2046@0 {
+					reg = <2>;
+					compatible = "ti,ads7843";
+					interrupts-extended = <&pioC 2 IRQ_TYPE_EDGE_BOTH>;
+					spi-max-frequency = <3000000>;
+					pendown-gpio = <&pioC 2 GPIO_ACTIVE_HIGH>;
+
+					ti,x-min = /bits/ 16 <150>;
+					ti,x-max = /bits/ 16 <3830>;
+					ti,y-min = /bits/ 16 <190>;
+					ti,y-max = /bits/ 16 <3830>;
+					ti,vref-delay-usecs = /bits/ 16 <450>;
+					ti,x-plate-ohms = /bits/ 16 <450>;
+					ti,y-plate-ohms = /bits/ 16 <250>;
+					ti,pressure-max = /bits/ 16 <15000>;
+					ti,debounce-rep = /bits/ 16 <0>;
+					ti,debounce-tol = /bits/ 16 <65535>;
+					ti,debounce-max = /bits/ 16 <1>;
+
+					linux,wakeup;
+				};
+			};
+
+			dbgu: serial@fffff200 {
+				status = "okay";
+			};
+
+			watchdog@fffffd40 {
+				status = "okay";
+			};
+
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		ds8 {
+			label = "ds8";
+			gpios = <&pioA 13 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "none";
+		};
+		ds7 {
+			label = "ds7";
+			gpios = <&pioA 14 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "nand-disk";
+		};
+		ds1 {
+			label = "ds1";
+			gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+
+		button_0 {
+			label = "button_0";
+			gpios = <&pioA 27 GPIO_ACTIVE_LOW>;
+			linux,code = <256>;
+			gpio-key,wakeup;
+		};
+		button_1 {
+			label = "button_1";
+			gpios = <&pioA 26 GPIO_ACTIVE_LOW>;
+			linux,code = <257>;
+			gpio-key,wakeup;
+		};
+		button_2 {
+			label = "button_2";
+			gpios = <&pioA 25 GPIO_ACTIVE_LOW>;
+			linux,code = <258>;
+			gpio-key,wakeup;
+		};
+		button_3 {
+			label = "button_3";
+			gpios = <&pioA 24 GPIO_ACTIVE_LOW>;
+			linux,code = <259>;
+			gpio-key,wakeup;
+		};
+	};
+};