openwrt/target/linux/ramips/dts/mt7620a_youku_yk1.dts
Shiji Yang bf7ddb18f1 ramips: speed up spi frequency for Youku YK-L1
Youku YK-L1 has a huge storage space up to 32 MB. It is better to
use a higher spi clock to read or write serial nor flash chips.
Youku YK-L1 has Winbond w25q256fvfg on board that can support
104 MHz spi clock so 48 MHz is safe enough.
The real frequency can only be sysclk(580MHz ) /3 /(2^n) so 80 MHz
defined in dts file will set only 48 MHz in spi bus.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2021-03-22 20:54:34 +01:00

137 lines
1.9 KiB
Plaintext

#include "mt7620a.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "youku,yk1", "ralink,mt7620a-soc";
model = "YOUKU YK1";
aliases {
led-boot = &led_power;
led-failsafe = &led_power;
led-running = &led_power;
led-upgrade = &led_power;
};
leds {
compatible = "gpio-leds";
wan {
label = "blue:wan";
gpios = <&gpio2 4 GPIO_ACTIVE_LOW>;
};
air {
label = "blue:air";
gpios = <&gpio3 0 GPIO_ACTIVE_LOW>;
};
usb {
label = "blue:usb";
gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
trigger-sources = <&ohci_port1>, <&ehci_port1>;
linux,default-trigger = "usbport";
};
led_power: power {
label = "blue:power";
gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
};
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
};
};
&gpio1 {
status = "okay";
};
&gpio2 {
status = "okay";
};
&gpio3 {
status = "okay";
};
&spi0 {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <80000000>;
m25p,fast-read;
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 0x1fb0000>;
};
};
};
};
&state_default {
default {
groups = "i2c", "rgmii1", "ephy", "wled";
function = "gpio";
};
};
&ethernet {
pinctrl-names = "default";
mtd-mac-address = <&factory 0x4>;
mediatek,portmap = "llllw";
};
&wmac {
ralink,mtd-eeprom = <&factory 0x0>;
};
&sdhci {
status = "okay";
};
&ehci {
status = "okay";
};
&ohci {
status = "okay";
};