ARM: dts: AM33XX: Add SHAM data and documentation

Add the generic AM33XX SHAM 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 SHAM module.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
[joelf@ti.com: Dropped interrupt-parent property, documentation fixups]
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>

4 files changed, 21 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 0d6334875df8..8a9802ee6380 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -19,3 +19,7 @@
 &mmc1 {
         vmmc-supply = <&ldo3_reg>;
 };
+
+&sham {
+        status = "okay";
+};
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 028ca096d18d..09786efc25c1 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -523,3 +523,7 @@
         vmmc-supply = <&vmmc_reg>;
         bus-width = <4>;
 };
+
+&sham {
+        status = "okay";
+};
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 563a2b136e0e..08d5cd9e6457 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -425,3 +425,7 @@
         vmmc-supply = <&vmmc_reg>;
         bus-width = <4>;
 };
+
+&sham {
+        status = "okay";
+};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 8aabaa0eb264..5f114a7f9484 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -712,5 +712,14 @@
                         #size-cells = <1>;
                         status = "disabled";
                 };
+
+                sham: sham@53100000 {
+                        compatible = "ti,omap4-sham";
+                        ti,hwmods = "sham";
+                        reg = <0x53100000 0x200>;
+                        interrupts = <109>;
+                        dmas = <&edma 36>;
+                        dma-names = "rx";
+                };
         };
 };