Re: [PATCH v2 09/10] riscv: Add device tree bindings for SPI

This patch adds bindings for the MMC slot and SPI flash on the Sipeed Maix Bit.

Signed-off-by: Sean Anderson seanga2@gmail.com

This patch was previously part of https://patchwork.ozlabs.org/project/uboot/list/?series=161576

Changes in v2:

• Remove broken-wp property (implicit due to no wp gpio)
• Remove ctrl0 field offsets from device tree
• Switch to new compatible strings
• Switch to new pinmux binding style

arch/riscv/dts/k210-maix-bit.dts | 46 +++++++++++++++++++++++++++++++- arch/riscv/dts/k210.dtsi | 2 ++ 2 files changed, 47 insertions(+), 1 deletion(-)

Acked-by: Rick Chen rick@andestech.com

I am OK that this patch can be pulled via SPI tree.

Thanks, Rick

diff --git a/arch/riscv/dts/k210-maix-bit.dts b/arch/riscv/dts/k210-maix-bit.dts index e840e04ada..73892c6450 100644 --- a/arch/riscv/dts/k210-maix-bit.dts +++ b/arch/riscv/dts/k210-maix-bit.dts @@ -141,7 +141,7 @@ pinmux = <K210_FPIOA(26, K210_PCF_SPI1_D1)>, <K210_FPIOA(27, K210_PCF_SPI1_SCLK)>, <K210_FPIOA(28, K210_PCF_SPI1_D0)>,

•                    <K210_FPIOA(29, K210_PCF_GPIOHS13)>;
  

•                    <K210_FPIOA(29, K210_PCF_GPIOHS13)>; /* cs */
    };
  

};

@@ -149,3 +149,47 @@ pinctrl-0 = <&fpioa_dvp>; pinctrl-names = "default"; };

+&spi0 {

•   pinctrl-0 = <&fpioa_spi0>;
  

•   pinctrl-names = "default";
  

•   num-cs = <1>;
  

•   cs-gpios = <&gpio0 20 0>;
  

•   panel@0 {
  

•           compatible = "sitronix,st7789v";
  

•           reg = <0>;
  

•           reset-gpios = <&gpio0 21 GPIO_ACTIVE_LOW>;
  

•           dc-gpios = <&gpio0 22 0>;
  

•           spi-max-frequency = <15000000>;
  

•           status = "disabled";
  

•   };
  

+};

+&spi1 {

•   pinctrl-0 = <&fpioa_spi1>;
  

•   pinctrl-names = "default";
  

•   num-cs = <1>;
  

•   cs-gpios = <&gpio0 13 0>;
  

•   status = "okay";
  

•   slot@0 {
  

•           compatible = "mmc-spi-slot";
  

•           reg = <0>;
  

•           spi-max-frequency = <25000000>;
  

•           voltage-ranges = <3300 3300>;
  

•           broken-cd;
  

•   };
  

+};

+&spi3 {

•   status = "okay";
  

•   spi-flash@0 {
  

•           compatible = "jedec,spi-nor";
  

•           reg = <0>;
  

•           spi-max-frequency = <50000000>;
  

•           m25p,fast-read;
  

•           broken-flash-reset;
  

•   };
  

+}; diff --git a/arch/riscv/dts/k210.dtsi b/arch/riscv/dts/k210.dtsi index 429891d651..fe47ee7aaf 100644 --- a/arch/riscv/dts/k210.dtsi +++ b/arch/riscv/dts/k210.dtsi @@ -495,6 +495,8 @@ interrupts = <24>; clocks = <&sysclk K210_CLK_DVP>; resets = <&sysrst K210_RST_DVP>;

•                           kendryte,sysctl = <&sysctl>;
  

•                           kendryte,misc-offset = <K210_SYSCTL_MISC>;
                            status = "disabled";
                    };
  
  

-- 2.28.0