Linux kernel 潘德斯版本上的SPI1。B2与内核3.17

这是我第一次问有关stackoverflow的问题

我试图在我的Pandes的J3上访问SPI1。首先，我修改了设备树源omap4-panda-es-b3.dts，添加了

&mcspi1
{
    spidev@0
    {
        compatible = "spidev";
        pinctrl-name = "default";
        pinctrl-0 = <&spi1_pins>;
        spi-max-frequency=<4000000>;
        reg = <0>;
    };
};

谢谢

---

MST

也许这对你有用

spi1_pins: pinmux_spi1_pins {
        pinctrl-single,pins = <
                0xf2 (PIN_OUTPUT_PULLUP | MUX_MODE0)   /* spi1_sclk, gpio134 */
                0xf4 (PIN_INPUT_PULLUP  | MUX_MODE0)   /* spi1_somi, gpio135 */
                0xf6 (PIN_OUTPUT_PULLUP | MUX_MODE0)   /* spi1_simo, gpio136 */
                0xf8 (PIN_OUTPUT_PULLUP | MUX_MODE0)   /* spi1_somi, gpio137 */
        >;
};

Linux arm 3.17.4-USER1-armv7-x3 #4 SMP Tue Feb 17 19:35:52 CST 2015 armv7l armv7l armv7l GNU/Linux