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Code

ARM: dts: BCM5301X: Add support for Buffalo WXR-1750DHP

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Add initial device tree support for the Buffalo WXR-1750DHP, a consumer Wi-Fi
router based on the Broadcom BCM4708A0 SoC.

Hardware specifications:
* Processor: Broadcom BCM4708A0 dual-core @ 800 MHz
* RAM: DDR3 256 MB
* Ethernet Switch: Broadcom BCM53011 integrated via SRAB
* NAND Flash: 128 MB (8-bit ECC)
* SPI Flash: None
* Ports: 4 LAN Ports, 1 WAN Port
* USB: 1x USB 3.0 Type-A port

Signed-off-by: Taishi Shimizu <s.taishi14142@gmail.com>
Link: https://lore.kernel.org/r/20250713071826.726682-3-s.taishi14142@gmail.com
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
This commit is contained in:
Taishi Shimizu 2025-07-13 16:18:25 +09:00 committed by Florian Fainelli
parent 279ea197d9
commit 484199a02a
2 changed files with 139 additions and 0 deletions
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1
arch/arm/boot/dts/broadcom/Makefile
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@ -51,6 +51,7 @@ dtb-$(CONFIG_ARCH_BCMBCA) += \
dtb-$(CONFIG_ARCH_BCM_5301X) += \
bcm4708-asus-rt-ac56u.dtb \
bcm4708-asus-rt-ac68u.dtb \
bcm4708-buffalo-wxr-1750dhp.dtb \
bcm4708-buffalo-wzr-1750dhp.dtb \
bcm4708-buffalo-wzr-1166dhp.dtb \
bcm4708-buffalo-wzr-1166dhp2.dtb \

138
arch/arm/boot/dts/broadcom/bcm4708-buffalo-wxr-1750dhp.dts Normal file
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@ -0,0 +1,138 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Author: Taishi Shimizu <s.taishi14142@gmail.com>
*/
/dts-v1/;
#include "bcm4708.dtsi"
#include "bcm5301x-nand-cs0-bch8.dtsi"
#include <dt-bindings/leds/common.h>
/ {
compatible = "buffalo,wxr-1750dhp", "brcm,bcm4708";
model = "Buffalo WXR-1750DHP";
memory@0 {
reg = <0x00000000 0x08000000>,
<0x88000000 0x08000000>;
device_type = "memory";
};
gpio-keys {
compatible = "gpio-keys";
button-aoss {
gpios = <&chipcommon 2 GPIO_ACTIVE_LOW>;
label = "AOSS";
linux,code = <KEY_WPS_BUTTON>;
};
/* GPIO 3 is a switch button with AUTO / MANUAL. */
button-manual {
gpios = <&chipcommon 3 GPIO_ACTIVE_HIGH>;
label = "MANUAL";
linux,code = <BTN_0>;
linux,input-type = <EV_SW>;
};
button-restart {
gpios = <&chipcommon 11 GPIO_ACTIVE_LOW>;
label = "Reset";
linux,code = <KEY_RESTART>;
};
/* GPIO 8 and 9 are a tri-state switch button with
* ROUTER / AP / WB.
*/
button-router {
gpios = <&chipcommon 8 GPIO_ACTIVE_LOW>;
label = "ROUTER";
linux,code = <BTN_1>;
linux,input-type = <EV_SW>;
};
button-wb {
gpios = <&chipcommon 9 GPIO_ACTIVE_LOW>;
label = "WB";
linux,code = <BTN_2>;
linux,input-type = <EV_SW>;
};
};
leds {
compatible = "gpio-leds";
led-internet {
color = <LED_COLOR_ID_WHITE>;
function = "internet";
gpios = <&chipcommon 7 GPIO_ACTIVE_HIGH>;
};
led-power0 {
color = <LED_COLOR_ID_AMBER>;
function = LED_FUNCTION_POWER;
gpios = <&chipcommon 6 GPIO_ACTIVE_HIGH>;
};
led-power1 {
color = <LED_COLOR_ID_WHITE>;
function = LED_FUNCTION_POWER;
gpios = <&chipcommon 5 GPIO_ACTIVE_HIGH>;
};
led-router0 {
color = <LED_COLOR_ID_AMBER>;
function = "router";
gpios = <&chipcommon 14 GPIO_ACTIVE_HIGH>;
};
led-router1 {
color = <LED_COLOR_ID_WHITE>;
function = "router";
gpios = <&chipcommon 15 GPIO_ACTIVE_HIGH>;
};
led-usb {
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_USB;
gpios = <&chipcommon 4 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "usbport";
trigger-sources = <&xhci_port1 &ehci_port1 &ohci_port1>;
};
};
};
&srab {
status = "okay";
ports {
port@0 {
label = "wan";
};
port@1 {
label = "lan4";
};
port@2 {
label = "lan3";
};
port@3 {
label = "lan2";
};
port@4 {
label = "lan1";
};
};
};
&usb3 {
vcc-gpio = <&chipcommon 10 GPIO_ACTIVE_HIGH>;
};
&usb3_phy {
status = "okay";
};