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标题: rk3128，spi不通 [打印本页]

作者: 15920514550 时间: 2017-8-12 11:28
标题: rk3128，spi不通
状况描述：板子本身的spi不能用，晶振已经起振，但是spi的clk脚完全没输出
解决方向：有可能是spi配置不对，板子选择使用那一组spi具体要配置那里，急急急

作者: 15920514550 时间: 2017-8-12 11:31
      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 = "okay";
      };

//这是rk312x.dtsi文件的spi配置，除了这个地方还有什么地方要配置吗

作者: 萤火虫 时间: 2019-1-13 16:59
楼主问题解决了吗？

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