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@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos5440-ssdk5440.dts | 39 +++++++++++++++++++++++++++-
arch/arm/boot/dts/exynos5440.dtsi | 16 +++++++----
2 files changed, 47 insertions(+), 8 deletions(-)
diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
index d55042b..a85ac0e 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 f6b1c89..7c5dc38 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>;
@@ -101,15 +105,15 @@
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>;
- clocks = <&clock 21>, <&clock 16>;
+ samsung,spi-src-clk = <0>;
+ num-cs = <1>;
+ clocks = <&clock 8>, <&clock 3>;
clock-names = "spi", "spi_busclk0";
};
--
1.7.5.4
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