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    Subject[RFC PATCH 2/4] ARM: dts: Add SPI flash node for Peach boards
    Date
    From: Simon Glass <sjg@chromium.org>

    Peach Pit and Pi machines have a SPI flash memory that is used to
    store firmware and different system parameters and data.

    Add information about the SPI flash chip so that user-space tools
    can access it.

    Signed-off-by: Simon Glass <sjg@chromium.org>
    Reviewed-by: Doug Anderson <dianders@chromium.org>
    Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
    ---
    arch/arm/boot/dts/exynos5420-peach-pit.dts | 26 ++++++++++++++++++++++++++
    arch/arm/boot/dts/exynos5800-peach-pi.dts | 26 ++++++++++++++++++++++++++
    2 files changed, 52 insertions(+)

    diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
    index 146e71118a72..8e88088d6815 100644
    --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
    +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
    @@ -892,6 +892,13 @@
    samsung,pin-drv = <2>;
    };

    + spi_flash_cs: spi-flash-cs {
    + samsung,pins = "gpa2-5";
    + samsung,pin-function = <1>;
    + samsung,pin-pud = <0>;
    + samsung,pin-drv = <3>;
    + };
    +
    usb300_vbus_en: usb300-vbus-en {
    samsung,pins = "gph0-0";
    samsung,pin-function = <1>;
    @@ -921,6 +928,25 @@
    clock-names = "rtc", "rtc_src";
    };

    +&spi_1 {
    + status = "okay";
    + samsung,spi-src-clk = <0>;
    + num-cs = <1>;
    + cs-gpios = <&gpa2 5 0>;
    +
    + spidev@0 {
    + compatible = "google,spi-flash";
    + reg = <0>;
    + spi-max-frequency = <50000000>;
    + pinctrl-names = "default";
    + pinctrl-0 = <&spi_flash_cs>;
    +
    + controller-data {
    + samsung,spi-feedback-delay = <2>;
    + };
    + };
    +};
    +
    &spi_2 {
    status = "okay";
    num-cs = <1>;
    diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
    index 02eb8b15374f..f2b89991b224 100644
    --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
    +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
    @@ -855,6 +855,13 @@
    samsung,pin-drv = <2>;
    };

    + spi_flash_cs: spi-flash-cs {
    + samsung,pins = "gpa2-5";
    + samsung,pin-function = <1>;
    + samsung,pin-pud = <0>;
    + samsung,pin-drv = <3>;
    + };
    +
    usb300_vbus_en: usb300-vbus-en {
    samsung,pins = "gph0-0";
    samsung,pin-function = <1>;
    @@ -884,6 +891,25 @@
    clock-names = "rtc", "rtc_src";
    };

    +&spi_1 {
    + status = "okay";
    + samsung,spi-src-clk = <0>;
    + num-cs = <1>;
    + cs-gpios = <&gpa2 5 0>;
    +
    + spidev@0 {
    + compatible = "google,spi-flash";
    + reg = <0>;
    + spi-max-frequency = <50000000>;
    + pinctrl-names = "default";
    + pinctrl-0 = <&spi_flash_cs>;
    +
    + controller-data {
    + samsung,spi-feedback-delay = <2>;
    + };
    + };
    +};
    +
    &spi_2 {
    status = "okay";
    num-cs = <1>;
    --
    2.1.4


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