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Title: SPI AIO-3128C [Print This Page]

Author: JuandeDios Time: 6/8/2018 16:21
Title: SPI AIO-3128C
Dear colleagues, I'm building a kernel driver to a device. This device has SPI interface.  I sent data by SPI with the last fireprime model but in this moment I can't send anything by SPI with  AIO board. DTS file are diferent and I don't have schematics to check conections. I have some questions.

1 Which dts file do I have to change? aio-3128c.dts or rk3128-fireprime-aio.dts
2. What do i have to do in this code to use SPI interface?

&spi0 {
status = "okay";
max-freq = <48000000>;

dac0: dh2228@00 {
            status = "disabled";
            compatible = "rohm,dh2228fv";
            reg = <00>;
            spi-max-frequency = <100000>;
      };

spi_wk2xxx: spi_wk2xxx@00{
            status = "okay";
            compatible = "firefly,spi-wk2xxx";
            reg = <0x00>;
            spi-max-frequency = <10000000>;
            reset-gpio = <&gpio3 GPIO_D3 GPIO_ACTIVE_HIGH>;
            irq-gpio = <&gpio1 GPIO_B4 IRQ_TYPE_EDGE_FALLING>;
            cs-gpio = <&gpio1 GPIO_B3 GPIO_ACTIVE_HIGH>;
            pwr-en-gpio = <&gpio0 GPIO_B4 GPIO_ACTIVE_HIGH>;
         };
};

Any suggestion? Thank you very much.

Author: leung先森 Time: 6/11/2018 14:22
need to disabled spi_wk2xxx

Author: JuandeDios Time: 6/18/2018 15:57
The problem was solved. I changed in 312x.dtsi pinctrl-0 = <&spi0_txd_mux0 &spi0_rxd_mux0 &spi0_clk_mux0 &spi0_cs0_mux0 &spi0_cs1_mux0>; to pinctrl-0 = <&spi0_txd_mux2 &spi0_rxd_mux2 &spi0_clk_mux2 &spi0_cs0_mux2>; and it's working.

spi0: spi@20074000 {
compatible = "rockchip,rockchip-spi";
reg = <0x20074000 0x1000>;
interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
//pinctrl-0 = <&spi0_txd_mux0 &spi0_rxd_mux0 &spi0_clk_mux0 &spi0_cs0_mux0 &spi0_cs1_mux0>;
//pinctrl-0 = <&spi0_txd_mux1 &spi0_rxd_mux1 &spi0_clk_mux1 &spi0_cs0_mux1 &spi0_cs1_mux1>;
pinctrl-0 = <&spi0_txd_mux2 &spi0_rxd_mux2 &spi0_clk_mux2 &spi0_cs0_mux2>;
rockchip,spi-src-clk = <0>;
num-cs = <2>;
clocks =<&clk_spi0>, <&clk_gates7 12>;
clock-names = "spi","pclk_spi0";
dmas = <&pdma 8>, <&pdma 9>;
#dma-cells = <2>;
dma-names = "tx", "rx";
status = "disabled";
};

Thanks a lot.

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