[PATCH v2] ARM: kirkwood: refactor dtsi to largest common nodes

[Jason Cooper]

On Mon, May 27, 2013 at 05:40:32PM +0200, Valentin Longchamp wrote:
> Some kirkwood variants (for instance present in the prestera SoCs) do
> not have all the peripherals whose nodes are declared in
> kirkwood.dtsi. These missing peripherals are SATA, SDIO, and RTC.
> 
> As discussed in [1], to avoid that these missing peripherals get
> initialized which could result in system hangs when accessing
> undocumented/not present HW registers, their corresponding OF nodes
> should not get declared at all for some kirkwood variants.
> 
> The corresponding OF nodes of these peripherals thus are moved from
> kirkwood.dtsi to the kirkwood-628x.dtsi files so that they still are
> initialized for these variants where they are present.
> 
> [1]
> http://lists.infradead.org/pipermail/linux-arm-kernel/2013-May/167154.html
> 
> Signed-off-by: Valentin Longchamp <valentin.longchamp at keymile.com>
> ---
> 
> Changes in v2:
> 	- include kirkwood-6281.dtsi in kirkwood-nsa310.dts
> 
>  arch/arm/boot/dts/kirkwood-6281.dtsi  | 24 ++++++++++++++++++++++++
>  arch/arm/boot/dts/kirkwood-6282.dtsi  | 24 ++++++++++++++++++++++++
>  arch/arm/boot/dts/kirkwood-nsa310.dts |  1 +
>  arch/arm/boot/dts/kirkwood.dtsi       | 24 ------------------------
>  4 files changed, 49 insertions(+), 24 deletions(-)

Applied to mvebu/dt and fixed up to incorporate the mvsdio changes.  New
version attached.

thx,

Jason.

---->8-----
diff --git a/arch/arm/boot/dts/kirkwood-6281.dtsi b/arch/arm/boot/dts/kirkwood-6281.dtsi
index d6c9d65..0ed2f56 100644
--- a/arch/arm/boot/dts/kirkwood-6281.dtsi
+++ b/arch/arm/boot/dts/kirkwood-6281.dtsi
@@ -40,5 +40,33 @@
 				marvell,function = "sdio";
 			};
 		};
+
+		rtc at 10300 {
+			compatible = "marvell,kirkwood-rtc", "marvell,orion-rtc";
+			reg = <0x10300 0x20>;
+			interrupts = <53>;
+			clocks = <&gate_clk 7>;
+		};
+
+		sata at 80000 {
+			compatible = "marvell,orion-sata";
+			reg = <0x80000 0x5000>;
+			interrupts = <21>;
+			clocks = <&gate_clk 14>, <&gate_clk 15>;
+			clock-names = "0", "1";
+			status = "disabled";
+		};
+
+		mvsdio at 90000 {
+			compatible = "marvell,orion-sdio";
+			reg = <0x90000 0x200>;
+			interrupts = <28>;
+			clocks = <&gate_clk 4>;
+			bus-width = <4>;
+			cap-sdio-irq;
+			cap-sd-highspeed;
+			cap-mmc-highspeed;
+			status = "disabled";
+		};
 	};
 };
diff --git a/arch/arm/boot/dts/kirkwood-6282.dtsi b/arch/arm/boot/dts/kirkwood-6282.dtsi
index 23991e4..69b760d 100644
--- a/arch/arm/boot/dts/kirkwood-6282.dtsi
+++ b/arch/arm/boot/dts/kirkwood-6282.dtsi
@@ -49,6 +49,34 @@
 			};
 		};
 
+		rtc at 10300 {
+			compatible = "marvell,kirkwood-rtc", "marvell,orion-rtc";
+			reg = <0x10300 0x20>;
+			interrupts = <53>;
+			clocks = <&gate_clk 7>;
+		};
+
+		sata at 80000 {
+			compatible = "marvell,orion-sata";
+			reg = <0x80000 0x5000>;
+			interrupts = <21>;
+			clocks = <&gate_clk 14>, <&gate_clk 15>;
+			clock-names = "0", "1";
+			status = "disabled";
+		};
+
+		mvsdio at 90000 {
+			compatible = "marvell,orion-sdio";
+			reg = <0x90000 0x200>;
+			interrupts = <28>;
+			clocks = <&gate_clk 4>;
+			bus-width = <4>;
+			cap-sdio-irq;
+			cap-sd-highspeed;
+			cap-mmc-highspeed;
+			status = "disabled";
+		};
+
 		thermal at 10078 {
 			compatible = "marvell,kirkwood-thermal";
 			reg = <0x10078 0x4>;
diff --git a/arch/arm/boot/dts/kirkwood-nsa310.dts b/arch/arm/boot/dts/kirkwood-nsa310.dts
index 79391ca..089024a 100644
--- a/arch/arm/boot/dts/kirkwood-nsa310.dts
+++ b/arch/arm/boot/dts/kirkwood-nsa310.dts
@@ -1,6 +1,7 @@
 /dts-v1/;
 
 /include/ "kirkwood.dtsi"
+/include/ "kirkwood-6281.dtsi"
 
 / {
 	model = "ZyXEL NSA310";
diff --git a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
index 56e3161..38dc851 100644
--- a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
+++ b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
@@ -151,4 +151,18 @@
 			gpios = <&gpio1 11 1>;
 		};
         };
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&pmx_gpio_init>;
+		pinctrl-names = "default";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		button at 1 {
+			label = "Init Button";
+			linux,code = <116>;
+			gpios = <&gpio1 6 0>;
+		};
+	};
 };
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index e2a28db..39f497e 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -71,13 +71,6 @@
 			status = "disabled";
 		};
 
-		rtc at 10300 {
-			compatible = "marvell,kirkwood-rtc", "marvell,orion-rtc";
-			reg = <0x10300 0x20>;
-			interrupts = <53>;
-			clocks = <&gate_clk 7>;
-		};
-
 		spi at 10600 {
 			compatible = "marvell,orion-spi";
 			#address-cells = <1>;
@@ -151,15 +144,6 @@
 			status = "okay";
 		};
 
-		sata at 80000 {
-			compatible = "marvell,orion-sata";
-			reg = <0x80000 0x5000>;
-			interrupts = <21>;
-			clocks = <&gate_clk 14>, <&gate_clk 15>;
-			clock-names = "0", "1";
-			status = "disabled";
-		};
-
 		nand at 3000000 {
 			#address-cells = <1>;
 			#size-cells = <1>;
@@ -194,17 +178,5 @@
 			clocks = <&gate_clk 17>;
 			status = "okay";
 		};
-
-		mvsdio at 90000 {
-			compatible = "marvell,orion-sdio";
-			reg = <0x90000 0x200>;
-			interrupts = <28>;
-			clocks = <&gate_clk 4>;
-			bus-width = <4>;
-			cap-sdio-irq;
-			cap-sd-highspeed;
-			cap-mmc-highspeed;
-			status = "disabled";
-		};
 	};
 };