openwrt/target/linux/ramips/dts/mt7621_iptime_a8004t.dts
Sunguk Lee 2d378703f1 ramips: reduce spi-max-frequency for ipTIME A8004T
Reduce spi-max-frequency for ipTIME A8004T and disable
m25p,fast-read option.

A8004T uses `en25qh128` for the MTD.
This flash memory would allow 80MHz, sometimes kernel received
wrong id value in initramfs installed router.
(kernel expected `1c 70 18 1c 70 18`, but one of cases, it
was `9c 70 18 1c 70 18`)

In this case, openwrt can't detect the partition information,
it would write the inccorect data to the firmware partition and
also it would occur the bootlooping after sysupgrade.

Signed-off-by: Sunguk Lee <d3m3vilurr@gmail.com>
[minor commit title/message adjustments]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-07-06 16:25:32 +02:00

164 lines
2.5 KiB
Plaintext

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;
#include "mt7621.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "iptime,a8004t", "mediatek,mt7621-soc";
model = "ipTIME A8004T";
chosen {
bootargs = "console=ttyS0,57600";
};
aliases {
led-boot = &led_cpu;
led-failsafe = &led_cpu;
led-running = &led_cpu;
led-upgrade = &led_cpu;
};
leds {
compatible = "gpio-leds";
led_cpu: cpu {
label = "a8004t:orange:cpu";
gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
};
wlan2g {
label = "a8004t:orange:wlan2g";
gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
linux,default-trigger = "phy0radio";
};
wlan5g {
label = "a8004t:orange:wlan5g";
gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
linux,default-trigger = "phy1radio";
};
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
wps {
label = "wps";
gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
linux,code = <KEY_WPS_BUTTON>;
};
};
};
&spi0 {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <50000000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
uboot: partition@0 {
label = "u-boot";
reg = <0x0 0x20000>;
read-only;
};
partition@20000 {
label = "config";
reg = <0x20000 0x10000>;
read-only;
};
factory: partition@30000 {
label = "factory";
reg = <0x30000 0x10000>;
read-only;
};
partition@40000 {
compatible = "denx,uimage";
label = "firmware";
reg = <0x40000 0xfc0000>;
};
};
};
};
&gmac0 {
mtd-mac-address = <&uboot 0x1fc20>;
};
&switch0 {
ports {
port@0 {
status = "okay";
label = "wan";
mtd-mac-address = <&uboot 0x1fc40>;
};
port@1 {
status = "okay";
label = "lan4";
};
port@2 {
status = "okay";
label = "lan3";
};
port@3 {
status = "okay";
label = "lan2";
};
port@4 {
status = "okay";
label = "lan1";
};
};
};
&pcie {
status = "okay";
};
&pcie0 {
wifi@0,0 {
compatible = "mediatek,mt76";
reg = <0x0000 0 0 0 0>;
mediatek,mtd-eeprom = <&factory 0x0000>;
ieee80211-freq-limit = <2400000 2500000>;
};
};
&pcie1 {
wifi@0,0 {
compatible = "mediatek,mt76";
reg = <0x0000 0 0 0 0>;
mediatek,mtd-eeprom = <&factory 0x8000>;
ieee80211-freq-limit = <5000000 6000000>;
};
};
&state_default {
gpio {
groups = "wdt", "jtag", "i2c";
function = "gpio";
};
};