Girish K S wrote:
>
> 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.g...@samsung.com>
> ---
> 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>;
Should be,
+ clocks = <&clock 21>, <&clock 16>;
> clock-names = "spi", "spi_busclk0";
> };
>
> --
Others, look good to me, and please create separated patches for SoC and
board.
Anway, will apply with fix the clock.
Thanks,
- Kukjin
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