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>

2 files changed, 46 insertions, 7 deletions

diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
index d55042beb5c5..a85ac0e27c3e 100644
--- 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 9fd78842e0e0..d2a48be7c0f3 100644
--- 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";
         };