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openwrt/target/linux/ramips/dts/mt7620a_tplink_archer.dtsi
David Bauer 4cd5ce5a7f ramips: increase SPI frequency for MT7620 Archer
Increase the SPI frequency for the MT7620 based TP-Link Archer
series to 30MHz.

TP-Link uses different SPI flash chips for the same board
revision, so be conservative to not break boards with a
different chip. 30MHz should be well supported by all chips.

Tested on Archer C2 v1 (GD25Q64B) and Archer C20i (W25Q64FV).

Archer C20i (before)
====================
root@OpenWrt:~# time dd if=/dev/mtd1 of=/tmp/test.bin bs=64k
122+0 records in
122+0 records out
real	0m 15.30s
user	0m 0.00s
sys	0m 15.29s

Archer C20i (after)
===================
root@OpenWrt:~# time dd if=/dev/mtd1 of=/tmp/test.bin bs=64k
122+0 records in
122+0 records out
real	0m 5.99s
user	0m 0.00s
sys	0m 5.98s

Signed-off-by: David Bauer <mail@david-bauer.net>
Acked-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-07-22 17:20:24 +02:00

127 lines
1.7 KiB
Plaintext

#include "mt7620a.dtsi"
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
/ {
chosen {
bootargs = "console=ttyS0,115200";
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
rfkill {
label = "rfkill";
gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RFKILL>;
};
};
};
&gpio1 {
status = "okay";
};
&gpio2 {
status = "okay";
};
&gpio3 {
status = "okay";
};
&spi0 {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <30000000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "u-boot";
reg = <0x0 0x20000>;
read-only;
};
partition@20000 {
compatible = "tplink,firmware";
label = "firmware";
reg = <0x20000 0x7a0000>;
};
partition@7c0000 {
label = "config";
reg = <0x7c0000 0x10000>;
read-only;
};
rom: partition@7d0000 {
label = "rom";
reg = <0x7d0000 0x10000>;
read-only;
};
partition@7e0000 {
label = "romfile";
reg = <0x7e0000 0x10000>;
read-only;
};
radio: partition@7f0000 {
label = "radio";
reg = <0x7f0000 0x10000>;
read-only;
};
};
};
};
&ethernet {
pinctrl-names = "default";
mtd-mac-address = <&rom 0xf100>;
mediatek,portmap = "wllll";
};
&ehci {
status = "okay";
};
&ohci {
status = "okay";
};
&gsw {
mediatek,port4 = "ephy";
};
&wmac {
ralink,mtd-eeprom = <&radio 0x0>;
};
&pcie {
status = "okay";
};
&pcie0 {
wifi: mt76@0,0 {
reg = <0x0000 0 0 0 0>;
mediatek,mtd-eeprom = <&radio 0x8000>;
ieee80211-freq-limit = <5000000 6000000>;
};
};