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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>
This commit is contained in:
Girish K S 2013-06-18 06:35:14 +09:00 committed by Kukjin Kim
parent a38089057f
commit dabd3f9d00
2 changed files with 46 additions and 7 deletions
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39
arch/arm/boot/dts/exynos5440-ssdk5440.dts
View File

@ -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 {

14
arch/arm/boot/dts/exynos5440.dtsi
View File

@ -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";
};