Subject: [PATCH 4/6] ARM: at91/dt: add SRAM nodes

From: [email-masked] (Bo Shen)
Date: Tue, 13 Jan 2015 09:37:48 +0800

Hi Alexandre,

On 01/13/2015 03:01 AM, Alexandre Belloni wrote:
> Add nodes for the SRAM available on atmel SoCs
>
> Remove leftover TODOs in the sam9g45 file
>
> Signed-off-by: Alexandre Belloni <[email-masked]>
> ---
>   arch/arm/boot/dts/at91rm9200.dtsi  |  5 +++++
>   arch/arm/boot/dts/at91sam9260.dtsi |  5 +++++
>   arch/arm/boot/dts/at91sam9261.dtsi |  5 +++++
>   arch/arm/boot/dts/at91sam9263.dtsi | 10 ++++++++++
>   arch/arm/boot/dts/at91sam9g20.dtsi |  9 +++++++++
>   arch/arm/boot/dts/at91sam9g45.dtsi |  7 +++++--
>   arch/arm/boot/dts/at91sam9n12.dtsi |  5 +++++
>   arch/arm/boot/dts/at91sam9rl.dtsi  |  5 +++++
>   arch/arm/boot/dts/at91sam9x5.dtsi  |  5 +++++
>   arch/arm/boot/dts/sama5d3.dtsi     |  5 +++++
>   arch/arm/boot/dts/sama5d4.dtsi     |  5 +++++
>   11 files changed, 64 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi
> index f449a864b81e..21c2b504f977 100644
> --- a/arch/arm/boot/dts/at91rm9200.dtsi
> +++ b/arch/arm/boot/dts/at91rm9200.dtsi
> @@ -66,6 +66,11 @@
>   		};
>   	};
>
> +	sram: sram at 00200000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00200000 0x4000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
> diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi
> index dd1313cbc314..6f52cb2eacd8 100644
> --- a/arch/arm/boot/dts/at91sam9260.dtsi
> +++ b/arch/arm/boot/dts/at91sam9260.dtsi
> @@ -69,6 +69,11 @@
>   		};
>   	};
>
> +	sram0: sram at 002ff000 {

Why here is 002ff000, while not 00200000?

> +		compatible = "mmio-sram";
> +		reg = <0x00200000 0x2000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
> diff --git a/arch/arm/boot/dts/at91sam9261.dtsi b/arch/arm/boot/dts/at91sam9261.dtsi
> index cdb9ed612109..e247b0b5fdab 100644
> --- a/arch/arm/boot/dts/at91sam9261.dtsi
> +++ b/arch/arm/boot/dts/at91sam9261.dtsi
> @@ -60,6 +60,11 @@
>   		};
>   	};
>
> +	sram: sram at 00300000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00300000 0x28000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
> diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi
> index ef8a70c27439..8a210d5033b1 100644
> --- a/arch/arm/boot/dts/at91sam9263.dtsi
> +++ b/arch/arm/boot/dts/at91sam9263.dtsi
> @@ -62,6 +62,16 @@
>   		};
>   	};
>
> +	sram0: sram at 00300000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00300000 0x14000>;
> +	};
> +
> +	sram1: sram at 00500000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00300000 0x4000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
> diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi
> index a50ee587a7af..9012fe9d7758 100644
> --- a/arch/arm/boot/dts/at91sam9g20.dtsi
> +++ b/arch/arm/boot/dts/at91sam9g20.dtsi
> @@ -16,6 +16,15 @@
>   		reg = <0x20000000 0x08000000>;
>   	};
>
> +	sram0: sram at 002ff000 {

Why here is 002ff000, while not 00200000?

> +		status = "disabled";

Btw, why it needs set to disabled.

> +	};
> +
> +	sram1: sram at 002fc000 {

Why here is 002fc000, while not 00300000? And length is on 0x4000.

> +		compatible = "mmio-sram";
> +		reg = <0x00200000 0x8000>;
> +	};
> +
>   	ahb {
>   		apb {
>   			i2c0: i2c at fffac000 {
> diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
> index 2a8da8a884b4..ee80aa9c0759 100644
> --- a/arch/arm/boot/dts/at91sam9g45.dtsi
> +++ b/arch/arm/boot/dts/at91sam9g45.dtsi
> @@ -74,6 +74,11 @@
>   		};
>   	};
>
> +	sram: sram at 00300000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00300000 0x10000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
> @@ -1287,7 +1292,6 @@
>   			compatible = "atmel,at91rm9200-ohci", "usb-ohci";
>   			reg = <0x00700000 0x100000>;
>   			interrupts = <22 IRQ_TYPE_LEVEL_HIGH 2>;
> -			//TODO
>   			clocks = <&usb>, <&uhphs_clk>, <&uhphs_clk>, <&uhpck>;
>   			clock-names = "usb_clk", "ohci_clk", "hclk", "uhpck";
>   			status = "disabled";
> @@ -1297,7 +1301,6 @@
>   			compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
>   			reg = <0x00800000 0x100000>;
>   			interrupts = <22 IRQ_TYPE_LEVEL_HIGH 2>;
> -			//TODO
>   			clocks = <&usb>, <&uhphs_clk>, <&uhphs_clk>, <&uhpck>;
>   			clock-names = "usb_clk", "ehci_clk", "hclk", "uhpck";
>   			status = "disabled";
> diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
> index a7218bcc6a25..6ea7ee3b8ff8 100644
> --- a/arch/arm/boot/dts/at91sam9n12.dtsi
> +++ b/arch/arm/boot/dts/at91sam9n12.dtsi
> @@ -64,6 +64,11 @@
>   		};
>   	};
>
> +	sram: sram at 00300000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00300000 0x8000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
> diff --git a/arch/arm/boot/dts/at91sam9rl.dtsi b/arch/arm/boot/dts/at91sam9rl.dtsi
> index 72424371413e..c055da2f151f 100644
> --- a/arch/arm/boot/dts/at91sam9rl.dtsi
> +++ b/arch/arm/boot/dts/at91sam9rl.dtsi
> @@ -70,6 +70,11 @@
>   		};
>   	};
>
> +	sram: sram at 00300000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00300000 0x4000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
> diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
> index bbb3ba65165f..818dabdd8c0e 100644
> --- a/arch/arm/boot/dts/at91sam9x5.dtsi
> +++ b/arch/arm/boot/dts/at91sam9x5.dtsi
> @@ -72,6 +72,11 @@
>   		};
>   	};
>
> +	sram: sram at 00300000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00300000 0x8000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
> diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
> index d701ddda0e00..e17614fe58a9 100644
> --- a/arch/arm/boot/dts/sama5d3.dtsi
> +++ b/arch/arm/boot/dts/sama5d3.dtsi
> @@ -78,6 +78,11 @@
>   		};
>   	};
>
> +	sram: sram at 00300000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00300000 0x20000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
> diff --git a/arch/arm/boot/dts/sama5d4.dtsi b/arch/arm/boot/dts/sama5d4.dtsi
> index 0a2477fe5525..1b4fe4e19721 100644
> --- a/arch/arm/boot/dts/sama5d4.dtsi
> +++ b/arch/arm/boot/dts/sama5d4.dtsi
> @@ -103,6 +103,11 @@
>   		};
>   	};
>
> +	ns_sram: sram at 00210000 {
> +		compatible = "mmio-sram";
> +		reg = <0x00210000 0x10000>;
> +	};
> +
>   	ahb {
>   		compatible = "simple-bus";
>   		#address-cells = <1>;
>

Best Regards,
Bo Shen