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>

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>
Rajeshwari Shinde · Minkyu Kang
1 parent 2f26975df5
Showing 2 changed files with 63 additions and 0 deletions Side-by-side Diff
arch/arm/dts/exynos5250.dtsi
doc/device-tree-bindings/exynos/isp-spi.txt
@@ -97,5 +97,46 @@
 		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>;
+	};
 };
+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>;
+};
...	...	@@ -97,5 +97,46 @@
97	97	compatible = "samsung,exynos-sound";
98	98	reg = <0x12d60000 0x20>;
99	99	};
	100	+
	101	+ spi@12d20000 {
	102	+ #address-cells = <1>;
	103	+ #size-cells = <0>;
	104	+ compatible = "samsung,exynos-spi";
	105	+ reg = <0x12d20000 0x30>;
	106	+ interrupts = <0 68 0>;
	107	+ };
	108	+
	109	+ spi@12d30000 {
	110	+ #address-cells = <1>;
	111	+ #size-cells = <0>;
	112	+ compatible = "samsung,exynos-spi";
	113	+ reg = <0x12d30000 0x30>;
	114	+ interrupts = <0 69 0>;
	115	+ };
	116	+
	117	+ spi@12d40000 {
	118	+ #address-cells = <1>;
	119	+ #size-cells = <0>;
	120	+ compatible = "samsung,exynos-spi";
	121	+ reg = <0x12d40000 0x30>;
	122	+ clock-frequency = <50000000>;
	123	+ interrupts = <0 70 0>;
	124	+ };
	125	+
	126	+ spi@131a0000 {
	127	+ #address-cells = <1>;
	128	+ #size-cells = <0>;
	129	+ compatible = "samsung,exynos-spi";
	130	+ reg = <0x131a0000 0x30>;
	131	+ interrupts = <0 129 0>;
	132	+ };
	133	+
	134	+ spi@131b0000 {
	135	+ #address-cells = <1>;
	136	+ #size-cells = <0>;
	137	+ compatible = "samsung,exynos-spi";
	138	+ reg = <0x131b0000 0x30>;
	139	+ interrupts = <0 130 0>;
	140	+ };
100	141	};
	1	+Exynos ISP SPI Subsystem
	2	+
	3	+The device node for ISP SPI subsytem.
	4	+Since Peripheral id in EXYNOS is decoded based on Interrupts, currently
	5	+ISP SPI have no individual interrupts hence we add ad dummy interrupt node
	6	+which will have a value beyond the maximum number of interrupts exynos5 can
	7	+support.
	8	+
	9	+Required properties :
	10	+ - compatible : Should be "samsung,exynos-spi" for spi.
	11	+ - reg : Base adrress of the the subsystem.
	12	+ - interrupts : A value which is beyond the maximum number of interrupts
	13	+exynos5 can support.
	14	+
	15	+Example:
	16	+spi@131a0000 {
	17	+ #address-cells = <1>;
	18	+ #size-cells = <0>;
	19	+ compatible = "samsung,exynos-spi";
	20	+ reg = <0x131a0000 0x30>;
	21	+ interrupts = <0 129 0>;
	22	+};