Hi, Good day,
I have a board that it's SOC which is MT7621 interface with LE9622(https://www.microchip.com/en-us/product/le9622) through SPI interface.
I should mention that the only SPI interface of MT7621 is handling the SPI Flash and I am going to use the same interface for LE9622 but with different chipset.
For adding the child node under the SPI interface of MT7621 device tree file , I am trying to define a child node and define the LE9622 there.
My problem is that I do not find any information about LE9622 on the device tree bindings directly of kernel to understand how to define the child node.
Does any one know where I can find information about LE9622 driver under linux kernel?
openwrt/build_dir/target-mipsel_24kc_musl/linux-ramips_mt7621/linux-5.15.142/Documentation/devicetree/bindings
Can anybody help me to add child node in device tree for LE9622?
My device tree file is as bellowing:
/ {
compatible = "meisam,7621a-evb", "mediatek,mt7621-soc";
model = "MAM-7621A board";
keys {
compatible = "gpio-keys";
reset {
label = "reset";
gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_RESTART>;
};
};
};
&spi0 {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <44000000>;
broken-flash-reset;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "u-boot";
reg = <0x0 0x30000>;
read-only;
};
partition@30000 {
label = "u-boot-env";
reg = <0x30000 0x10000>;
read-only;
};
factory: partition@40000 {
label = "factory";
reg = <0x40000 0x10000>;
read-only;
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
eeprom_factory_8000: eeprom@8000 {
reg = <0x8000 0x200>;
};
};
};
partition@50000 {
compatible = "denx,uimage";
label = "firmware";
reg = <0x50000 0x1fb0000>;
};
};
};
};
Best Regards,
Meisam
