ARM: dts: enable spi for EXYNOS5440 SOC

This patch enables the SPI in EXYNOS5440 SoC. The NOR
Flash can be accessed by enabling the spi interface

Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
index d55042b..a85ac0e 100644 (file)
--- a/arch/arm/boot/dts/exynos5440-ssdk5440.dts
+++ b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
@@ -20,8 +20,43 @@
                bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel early_printk no_console_suspend mem=2048M@0x80000000 console=ttySAC0,115200";
        };
 
-       spi {
-               status = "disabled";
+       spi_0: spi@D0000 {
+
+               flash: w25q128@0 {
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+                       compatible = "winbond,w25q128";
+                       spi-max-frequency = <15625000>;
+                       reg = <0>;
+                       controller-data {
+                               samsung,spi-feedback-delay = <0>;
+                       };
+
+                       partition@00000 {
+                               label = "BootLoader";
+                               reg = <0x60000 0x80000>;
+                               read-only;
+                       };
+
+                       partition@e0000 {
+                               label = "Recovery-Kernel";
+                               reg = <0xe0000 0x300000>;
+                               read-only;
+                       };
+
+                       partition@3e0000 {
+                               label = "CRAM-FS";
+                               reg = <0x3e0000 0x700000>;
+                               read-only;
+                       };
+
+                       partition@ae0000 {
+                               label = "User-Data";
+                               reg = <0xae0000 0x520000>;
+                       };
+
+               };
+
        };
 
        fixed-rate-clocks {

diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi
index 9fd7884..d2a48be 100644 (file)
--- a/arch/arm/boot/dts/exynos5440.dtsi
+++ b/arch/arm/boot/dts/exynos5440.dtsi
@@ -16,6 +16,10 @@
 
        interrupt-parent = <&gic>;
 
+       aliases {
+               spi0 = &spi_0;
+       };
+
        clock: clock-controller@0x160000 {
                compatible = "samsung,exynos5440-clock";
                reg = <0x160000 0x1000>;
@@ -101,14 +105,14 @@
                clock-names = "uart", "clk_uart_baud0";
        };
 
-       spi {
-               compatible = "samsung,exynos4210-spi";
-               reg = <0xD0000 0x1000>;
+       spi_0: spi@D0000 {
+               compatible = "samsung,exynos5440-spi";
+               reg = <0xD0000 0x100>;
                interrupts = <0 4 0>;
-               tx-dma-channel = <&pdma0 5>; /* preliminary */
-               rx-dma-channel = <&pdma0 4>; /* preliminary */
                #address-cells = <1>;
                #size-cells = <0>;
+               samsung,spi-src-clk = <0>;
+               num-cs = <1>;
                clocks = <&clock 21>, <&clock 16>;
                clock-names = "spi", "spi_busclk0";
        };