EXYNOS5: FDT: Add SPI device node data

Add SPI device node data for exynos.

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

diff --git a/arch/arm/dts/exynos5250.dtsi b/arch/arm/dts/exynos5250.dtsi
index dc13f29dc3fc250c8f95fae6b9429f22e2b5edaf..1008797345df2407ad2f50e089e02c42178d7dbc 100644 (file)
--- a/arch/arm/dts/exynos5250.dtsi
+++ b/arch/arm/dts/exynos5250.dtsi
@@ -97,4 +97,45 @@
                compatible = "samsung,exynos-sound";
                reg = <0x12d60000 0x20>;
        };
+
+       spi@12d20000 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               compatible = "samsung,exynos-spi";
+               reg = <0x12d20000 0x30>;
+               interrupts = <0 68 0>;
+       };
+
+       spi@12d30000 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               compatible = "samsung,exynos-spi";
+               reg = <0x12d30000 0x30>;
+               interrupts = <0 69 0>;
+       };
+
+       spi@12d40000 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               compatible = "samsung,exynos-spi";
+               reg = <0x12d40000 0x30>;
+               clock-frequency = <50000000>;
+               interrupts = <0 70 0>;
+        };
+
+       spi@131a0000 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               compatible = "samsung,exynos-spi";
+               reg = <0x131a0000 0x30>;
+               interrupts = <0 129 0>;
+       };
+
+       spi@131b0000 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               compatible = "samsung,exynos-spi";
+               reg = <0x131b0000 0x30>;
+               interrupts = <0 130 0>;
+       };
 };

diff --git a/doc/device-tree-bindings/exynos/isp-spi.txt b/doc/device-tree-bindings/exynos/isp-spi.txt
new file mode 100644 (file)
index 0000000..b8086e8
--- /dev/null
+++ b/doc/device-tree-bindings/exynos/isp-spi.txt
@@ -0,0 +1,22 @@
+Exynos ISP SPI Subsystem
+
+The device node for ISP SPI subsytem.
+Since Peripheral id in EXYNOS is decoded based on Interrupts, currently
+ISP SPI have no individual interrupts hence we add ad dummy interrupt node
+which will have a value beyond the maximum number of interrupts exynos5 can
+support.
+
+Required properties :
+ - compatible : Should be "samsung,exynos-spi" for spi.
+ - reg : Base adrress of the the subsystem.
+ - interrupts : A value which is beyond the maximum number of interrupts
+exynos5 can support.
+
+Example:
+spi@131a0000 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+       compatible = "samsung,exynos-spi";
+       reg = <0x131a0000 0x30>;
+       interrupts = <0 129 0>;
+};