linux-kernel - [PATCH v2 4/9] ARM: dts: Add AES data and documentation for AM33XX

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Message-ID: <1380553986-15910-5-git-send-email-joelf@ti.com>
Date:	Mon, 30 Sep 2013 10:13:01 -0500
From:	Joel Fernandes <joelf@...com>
To:	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Benoit Cousson <bcousson@...libre.com>
CC:	Paul Walmsley <paul@...an.com>,
	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Landley <rob@...dley.net>,
	Tony Lindgren <tony@...mide.com>,
	Russell King <linux@....linux.org.uk>,
	"Mark A. Greer" <mgreer@...malcreek.com>,
	"open list:OPEN FIRMWARE AND..." <devicetree@...r.kernel.org>,
	"open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 4/9] ARM: dts: Add AES data and documentation for AM33XX

From: "Mark A. Greer" <mgreer@...malcreek.com>

Add the generic AM33XX AES module's device tree data and
enable it for the am335x-evm, am335x-evmsk, and am335x-bone
platforms.  Also add Documentation file describing the data
for the AES module.

[joelf@...com: Dropped interrupt-parent propert]

CC: Paul Walmsley <paul@...an.com>
Signed-off-by: Mark A. Greer <mgreer@...malcreek.com>
---
 .../devicetree/bindings/crypto/omap-aes.txt        | 34 ++++++++++++++++++++++
 arch/arm/boot/dts/am335x-bone.dts                  |  4 +++
 arch/arm/boot/dts/am335x-evm.dts                   |  4 +++
 arch/arm/boot/dts/am335x-evmsk.dts                 |  4 +++
 arch/arm/boot/dts/am33xx.dtsi                      | 10 +++++++
 5 files changed, 56 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/omap-aes.txt

diff --git a/Documentation/devicetree/bindings/crypto/omap-aes.txt b/Documentation/devicetree/bindings/crypto/omap-aes.txt
new file mode 100644
index 0000000..4bb1e27
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/omap-aes.txt
@@ -0,0 +1,34 @@
+OMAP SoC AES crypto Module
+
+Required properties:
+
+- compatible : Should contain entries for this and backward compatible
+  AES versions:
+  - "ti,omap2-aes" for OMAP2.
+  - "ti,omap3-aes" for OMAP3.
+  - "ti,omap4-aes" for OMAP4 and AM33XX.
+  Note that the OMAP2 and 3 versions are compatible (OMAP3 supports
+  more algorithms) but they are incompatible with OMAP4.
+- ti,hwmods: Name of the hwmod associated with the AES odule
+- reg : Offset and length of the register set for the module
+- interrupt-parent : the phandle for the interrupt controller that
+  services interrupts for this module.
+- interrupts : the interrupt number for the AES odule.
+
+Optional properties:
+- dmas: DMA specifier for tx and rx dma. See the DMA client binding,
+	Documentation/devicetree/bindings/dma/dma.txt
+- dma-names: DMA request names. Should be '"tx", "rx"' if dma is present.
+
+Example:
+	/* AM335x */
+	aes: aes@...00000 {
+		compatible = "ti,omap4-aes";
+		ti,hwmods = "aes";
+		reg = <0x53500000 0xa0>;
+		interrupt-parent = <&intc>;
+		interrupts = <102>;
+		dmas = <&edma 6
+			&edma 5>;
+		dma-names = "tx", "rx";
+	};
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 8a9802e..94ee427 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -23,3 +23,7 @@
 &sham {
 	status = "okay";
 };
+
+&aes {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index d59e51c..86463fa 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -526,3 +526,7 @@
 &sham {
 	status = "okay";
 };
+
+&aes {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index d45a330..f577e65 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -428,3 +428,7 @@
 &sham {
 	status = "okay";
 };
+
+&aes {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 299710b..0daa1b2 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -719,5 +719,15 @@
 			dmas = <&edma 36>;
 			dma-names = "rx";
 		};
+
+		aes: aes@...00000 {
+			compatible = "ti,omap4-aes";
+			ti,hwmods = "aes";
+			reg = <0x53500000 0xa0>;
+			interrupts = <102>;
+			dmas = <&edma 6
+				&edma 5>;
+			dma-names = "tx", "rx";
+		};
 	};
 };
-- 
1.8.1.2

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