On Fri, 13 Jan 2017 15:13:29 +0800
Guochun Mao <guochun.mao@xxxxxxxxxxxx> wrote:
> Add Mediatek nor flash node.
>
> Signed-off-by: Guochun Mao <guochun.mao@xxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/mt2701-evb.dts | 25 +++++++++++++++++++++++++
> arch/arm/boot/dts/mt2701.dtsi | 12 ++++++++++++
> 2 files changed, 37 insertions(+)
>
> diff --git a/arch/arm/boot/dts/mt2701-evb.dts b/arch/arm/boot/dts/mt2701-evb.dts
> index 082ca88..85e5ae8 100644
> --- a/arch/arm/boot/dts/mt2701-evb.dts
> +++ b/arch/arm/boot/dts/mt2701-evb.dts
> @@ -24,6 +24,31 @@
> };
> };
>
> +&nor_flash {
> + pinctrl-names = "default";
> + pinctrl-0 = <&nor_pins_default>;
> + status = "okay";
> + flash@0 {
> + compatible = "jedec,spi-nor";
> + reg = <0>;
> + };
> +};
> +
> +&pio {
> + nor_pins_default: nor {
> + pins1 {
> + pinmux = <MT2701_PIN_240_EXT_XCS__FUNC_EXT_XCS>,
> + <MT2701_PIN_241_EXT_SCK__FUNC_EXT_SCK>,
> + <MT2701_PIN_239_EXT_SDIO0__FUNC_EXT_SDIO0>,
> + <MT2701_PIN_238_EXT_SDIO1__FUNC_EXT_SDIO1>,
> + <MT2701_PIN_237_EXT_SDIO2__FUNC_EXT_SDIO2>,
> + <MT2701_PIN_236_EXT_SDIO3__FUNC_EXT_SDIO3>;
> + drive-strength = <MTK_DRIVE_4mA>;
> + bias-pull-up;
> + };
> + };
> +};
> +
> &uart0 {
> status = "okay";
> };
> diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
> index bdf8954..1eefce4 100644
> --- a/arch/arm/boot/dts/mt2701.dtsi
> +++ b/arch/arm/boot/dts/mt2701.dtsi
> @@ -227,6 +227,18 @@
> status = "disabled";
> };
>
> + nor_flash: spi@11014000 {
> + compatible = "mediatek,mt2701-nor",
> + "mediatek,mt8173-nor";
Why define both here? Is "mediatek,mt8173-nor" really providing a
subset of the features supported by "mediatek,mt2701-nor"?
> + reg = <0 0x11014000 0 0xe0>;
> + clocks = <&pericfg CLK_PERI_FLASH>,
> + <&topckgen CLK_TOP_FLASH_SEL>;
> + clock-names = "spi", "sf";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + status = "disabled";
> + };
> +
> mmsys: syscon@14000000 {
> compatible = "mediatek,mt2701-mmsys", "syscon";
> reg = <0 0x14000000 0 0x1000>;
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