求助：mpc8308 64MB nor flash 文件系统不成功

hust863

目前板子的flash是2片32MB的flash，配置dts后，文件系统起不来，出现如下错误：of-flash: probe of fe000000.flash failed with error -16

通过cat命令查看mtd没有任何打印
[root@mpc8308erdb /]# cat proc/mtd
dev:    size   erasesize  name


我的dts配置文件flash部分如下：
localbus@e0005000 {

#address-cells = <2>;

#size-cells = <1>;

compatible = "fsl,mpc8315-elbc", "fsl,elbc", "simple-bus";

reg = <0xe0005000 0x1000>;

interrupts = <77 0x8>;

interrupt-parent = <&ipic>;



// CS0 and CS1 are swapped when

// booting from nand, but the

// addresses are the same.

ranges = <0x0 0x0 0xfc000000 0x04000000

          0x1 0x0 0xe0600000 0x00002000

          0x2 0x0 0xf0000000 0x00020000

          0x3 0x0 0xfa000000 0x00008000>;



flash@0,0 {

#address-cells = <1>;

#size-cells = <1>;

compatible = "cfi-flash";

reg = <0x0 0x0 0x4000000>;

bank-width = <2>;

device-width = <2>;



u-boot@0 {

reg = <0x0 0x100000>;

read-only;

};

fs@100000 {

reg = <0x100000 0x2000000>;

};

kernel@2100000 {

reg = <0x2100000 0x300000>;

};

dtb@2400000 {

reg = <0x2400000 0x100000>;

};

env@2500000 {

reg = <0x2500000 0x200000>;

};

app@2700000 {

reg = <0x2700000 0x3400000>;

};

};
请问有哪里设置错误或还需要设置什么内容可以让文件系统起来，谢谢！