|
我的设备树编写如下
spi@481a2000 {
compatible = "ti,am4372-mcspi", "ti,omap4-mcspi";
reg = <0x481a2000 0x400>;
interrupts = <0x0 0x7e 0x4>;
ti,spi-num-cs = <0x1>;
ti,pindir-d0-out-d1-in = <0x1>;
ti,hwmods = "spi2";
dmas = <0x28 0x10 0x28 0x11 0x28 0x12 0x28 0x13>;
dma-names = "tx0", "rx0", "tx1", "rx1";
#address-cells = <0x1>;
#size-cells = <0x0>;
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <0x3e>;
spidev0:spi@481a2000{
compatible="spidev";
reg=<1>;
spi-max-frequency=<40000000>;
};
};
为什么系统启动后在/dev目录下没有/dev/spidev1.1
|
|