openwrt/target/linux/ramips/dts/MIWIFI-NANO.dts
Adrian Schmutzler 62d5ece70b ramips: remove bogus ralink,mtd-eeprom with offset 0x4
Several devices in mt76x8 subtarget use the following line to set
up wmac in their DTS(I) files:

ralink,mtd-eeprom = <&factory 0x4>

This is strange for several reasons:
- They should use mediatek,mtd-eeprom on this SOC
- The caldata is supposed to start at 0x0
- The parent DTSI mt7628an.dtsi specifies mediatek,mtd-eeprom anyway,
  starting from 0x0
- The offset coincides with the default location of the MAC address
  in caldata

Based on the comment in b28e94d4bf ("ramips: MiWiFi Nano fixes"),
it looks like the author for this device wanted to actually use
mtd-mac-address instead of ralink,mtd-eeprom. A check on the same
device revealed that actually the MAC address start at offset 4 there,
so the correct caldata offset is 0x0.

Based on these findings, and the fact that the expected location on
this SOC is 0x0, we remove the "ralink,mtd-eeprom = <&factory 0x4>"
statement from all devices in ramips (being only mt7628an anyway).

Thanks to Sungbo Eo for finding and researching this.

Reported-by: Sungbo Eo <mans0n@gorani.run>
Fixes: b28e94d4bf ("ramips: MiWiFi Nano fixes")
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit 09d38a3bc3)
2019-12-28 02:34:41 +01:00

113 lines
1.8 KiB
Plaintext

/dts-v1/;
#include "mt7628an.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "xiaomi,miwifi-nano", "mediatek,mt7628an-soc";
model = "MiWiFi Nano";
aliases {
led-boot = &led_blue;
led-failsafe = &led_blue;
led-running = &led_blue;
led-upgrade = &led_blue;
};
chosen {
bootargs = "console=ttyS0,115200";
};
memory@0 {
device_type = "memory";
reg = <0x0 0x4000000>;
};
leds {
compatible = "gpio-leds";
led_blue: status_blue {
label = "miwifi-nano:blue:status";
gpios = <&gpio0 11 GPIO_ACTIVE_LOW>;
};
status_red {
label = "miwifi-nano:red:status";
gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
};
status_amber {
label = "miwifi-nano:amber:status";
gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
};
};
keys {
compatible = "gpio-keys-polled";
poll-interval = <20>;
reset {
label = "reset";
gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
};
};
&pinctrl {
state_default: pinctrl0 {
gpio {
ralink,group = "refclk", "wled_an", "gpio";
ralink,function = "gpio";
};
};
};
&wmac {
status = "okay";
};
&ethernet {
mtd-mac-address = <&factory 0x28>;
};
&spi0 {
status = "okay";
m25p80@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <10000000>;
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;
};
partition@50000 {
compatible = "denx,uimage";
label = "firmware";
reg = <0x50000 0xfb0000>;
};
};
};
};