在imx6ul下设置挂载W25Q32FV(备注支持SPI nor)
设备树配置如下：
&ecspi4 {
fsl,spi-num-chipselects = <4>;
cs-gpios = <&gpio2 15 0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi4_1 &pinctrl_ecspi4_cs_1>;
status = "okay";
flash: m25p80@0 {
compatible = "sst,w25q32","spi-nor";
spi-max-frequency = <30000000>;
reg = <0>;
};
};
烧写完启动如下信息
m25p80 spi3.0: unrecognized JEDEC id bytes: 00, 0, 0
应该是 JEDEC ID 没有识别，请问设备树是否配置正确？
ecspi3下挂载的spi nor芯片的空间如何挂载 到mtd下
&ecspi4 {
fsl,spi-num-chipselects = <4>;
cs-gpios = <&gpio2 15 0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ecspi4_1 &pinctrl_ecspi4_cs_1>;
status = "okay";
flash: m25p80@0 {
compatible = "sst,w25q32","spi-nor";
spi-max-frequency = <30000000>;
reg = <0>;
partition@6 {
label = "w25q32";
reg = <0x20000000 0x800000>;
};
/*
在原512Mbyte的NAND FLASH下扩8Mbyte的spi nor空间
*/
};
};
请帮指导！！！！
