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Date: Tue, 5 Feb 2013 20:50:08 +0100
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To: Wenyou Yang <wenyou.yang@...el.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
nicolas.ferre@...el.com, richard.genoud@...il.com,
JM.Lin@...el.com, linux@....linux.org.uk
Subject: Re: [v4 PATCH 12/12] ARM: dts: add spi nodes for the atmel boards
On 15:34 Mon 14 Jan , Wenyou Yang wrote:
> From: Richard Genoud <richard.genoud@...il.com>
>
> Signed-off-by: Richard Genoud <richard.genoud@...il.com>
> [wenyou.yang@...el.com: added spi nodes for the sam9263ek, sam9g20ek, sam9m10g45ek and sam9n12ek boards]
> Signed-off-by: Wenyou Yang <wenyou.yang@...el.com>
> Cc: linux@....linux.org.uk
> ---
> arch/arm/boot/dts/at91sam9263ek.dts | 14 ++++++++++++++
> arch/arm/boot/dts/at91sam9g20ek_common.dtsi | 14 ++++++++++++++
> arch/arm/boot/dts/at91sam9m10g45ek.dts | 14 ++++++++++++++
> arch/arm/boot/dts/at91sam9n12ek.dts | 14 ++++++++++++++
> arch/arm/boot/dts/at91sam9x5ek.dtsi | 14 ++++++++++++++
> 5 files changed, 70 insertions(+)
>
> diff --git a/arch/arm/boot/dts/at91sam9263ek.dts b/arch/arm/boot/dts/at91sam9263ek.dts
> index 1eb0872..63ba57b 100644
> --- a/arch/arm/boot/dts/at91sam9263ek.dts
> +++ b/arch/arm/boot/dts/at91sam9263ek.dts
> @@ -79,6 +79,20 @@
> };
> };
> };
> +
> + spi0: spi@...a4000 {
> + status = "okay";
> + cs-gpios = <&pioA 5 0
> + &pioA 3 0
> + &pioA 4 0
> + &pioB 11 0
NACK
we no use that much as cs-gpios on this hw
> + >;
> + mtd_dataflash@0 {
> + compatible = "atmel,at45", "atmel,dataflash";
> + spi-max-frequency = <50000000>;
> + reg = <0>;
> + };
> + };
> };
>
> nand0: nand@...00000 {
> diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
> index da15e83..49ad49e 100644
> --- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
> +++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
> @@ -96,6 +96,20 @@
> status = "okay";
> pinctrl-0 = <&pinctrl_ssc0_tx>;
> };
> +
> + spi0: spi@...c8000 {
> + status = "okay";
> + cs-gpios = <&pioA 3 0
> + &pioC 11 0
> + &pioC 16 0
> + &pioC 17 0
ditto and so on
you must only provife the gpio use by the hw
> + >;
> + mtd_dataflash@0 {
> + compatible = "atmel,at45", "atmel,dataflash";
> + spi-max-frequency = <50000000>;
> + reg = <1>;
> + };
> + };
> };
>
> nand0: nand@...00000 {
> diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
> index 20c3191..275f22d 100644
> --- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
> +++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
> @@ -102,6 +102,20 @@
> };
> };
> };
> +
> + spi0: spi@...a4000{
> + status = "okay";
> + cs-gpios = <&pioB 3 0
> + &pioB 18 0
> + &pioB 19 0
> + &pioD 27 0
> + >;
> + mtd_dataflash@0 {
> + compatible = "atmel,at45", "atmel,dataflash";
> + spi-max-frequency = <13000000>;
> + reg = <0>;
> + };
> + };
> };
>
> nand0: nand@...00000 {
> diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts
> index 0376bf4..4eeca7b 100644
> --- a/arch/arm/boot/dts/at91sam9n12ek.dts
> +++ b/arch/arm/boot/dts/at91sam9n12ek.dts
> @@ -67,6 +67,20 @@
> };
> };
> };
> +
> + spi0: spi@...00000 {
> + status = "okay";
> + cs-gpios = <&pioA 14 0
> + &pioA 7 0
> + &pioA 1 0
> + &pioB 3 0
> + >;
> + m25p80@0 {
> + compatible = "atmel,at25df321a";
> + spi-max-frequency = <50000000>;
> + reg = <0>;
> + };
> + };
> };
>
> nand0: nand@...00000 {
> diff --git a/arch/arm/boot/dts/at91sam9x5ek.dtsi b/arch/arm/boot/dts/at91sam9x5ek.dtsi
> index 8a7cf1d..ca0a056 100644
> --- a/arch/arm/boot/dts/at91sam9x5ek.dtsi
> +++ b/arch/arm/boot/dts/at91sam9x5ek.dtsi
> @@ -84,6 +84,20 @@
> };
> };
> };
> +
> + spi0: spi@...00000 {
> + status = "okay";
> + cs-gpios = <&pioA 14 0
> + &pioA 7 0
> + &pioA 1 0
> + &pioB 3 0
> + >;
> + m25p80@0 {
> + compatible = "atmel,at25df321a";
> + spi-max-frequency = <50000000>;
> + reg = <0>;
> + };
> + };
> };
>
> usb0: ohci@...00000 {
> --
> 1.7.9.5
>
--
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