From 1df1ea4d7e8b6ae3351780ed58800ccd9edd4c27 Mon Sep 17 00:00:00 2001
From: INAGAKI Hiroshi <musashino.open@gmail.com>
Date: Tue, 11 Sep 2018 20:13:17 +0900
Subject: ath79: fix support for Buffalo WZR-HP-G450H and split to dts/dtsi

There are many parts that are incorrect or missing in the current
code for Buffalo WZR-HP-G450H in ath79, so its support is broken.

I fixed that issues and split to dts/dtsi files to add support for
Buffalo BHR-4GRV.

And WZR-450HP has the same hardware as WZR-HP-G450H, so I change the
device name to "WZR-HP-G450H/WZR-450HP".

Specification:

- Atheros AR7242
- 64 MB of RAM
- 32 MB of Flash
  - 2x 16 MB SPI-NOR flash
- 3T3R 2.4 GHz wifi
  - SoC internal
- 5x 10/100/1000 Mbps Ethernet
- 6x LEDs, 5x keys
- 1x USB 2.0 Type-A
- UART header on PCB
  - JP1: Vcc, GND, TX, RX from reset button side

Flash instruction using factory image:

1. Boot the WZR-HP-G450H (or WZR-450HP) normaly and connect the computer
to its LAN port
2. Access to
"http://192.168.11.1/cgi-bin/cgi?req=frm&frm=py-db/firmup.html"
with user "bufpy" and password "otdpopy"
3. Select the OpenWrt factory image and click "OK" button to perform
firmware update
4. Wait ~200 seconds to complete flashing

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
---
 target/linux/ath79/dts/ar7242_buffalo_wzr-bhr.dtsi | 174 +++++++++++++++++++++
 1 file changed, 174 insertions(+)
 create mode 100644 target/linux/ath79/dts/ar7242_buffalo_wzr-bhr.dtsi

(limited to 'target/linux/ath79/dts/ar7242_buffalo_wzr-bhr.dtsi')

diff --git a/target/linux/ath79/dts/ar7242_buffalo_wzr-bhr.dtsi b/target/linux/ath79/dts/ar7242_buffalo_wzr-bhr.dtsi
new file mode 100644
index 0000000000..c82cf83f7e
--- /dev/null
+++ b/target/linux/ath79/dts/ar7242_buffalo_wzr-bhr.dtsi
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "ar7242.dtsi"
+
+/ {
+	aliases {
+		led-boot = &diag;
+		led-failsafe = &diag;
+		led-upgrade = &diag;
+	};
+
+	extosc: ref {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <40000000>;
+	};
+
+	keys: keys {
+		compatible = "gpio-keys-polled";
+		poll-interval = <20>;
+
+		usb {
+			label = "usb";
+			linux,code = <BTN_2>;
+			gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 6 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		sec_vpn: sec_vpn {
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		diag: diag {
+			label = "buffalo:red:diag";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		usb {
+			label = "buffalo:green:usb";
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			trigger-sources = <&hub_port>;
+			linux,default-trigger = "usbport";
+		};
+	};
+
+	gpio-export {
+		compatible = "gpio-export";
+		#size-cells = <0>;
+
+		gpio_usb_power {
+			gpio-export,name = "buffalo:usb-power";
+			gpio-export,output = <1>;
+			gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	virtual_flash {
+		compatible = "mtd-concat";
+		devices = <&flash0 &flash1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				reg = <0x0 0x40000>;
+				label = "u-boot";
+				read-only;
+			};
+
+			partition@40000 {
+				reg = <0x40000 0x10000>;
+				label = "u-boot-env";
+			};
+
+			ART: partition@50000 {
+				reg = <0x50000 0x10000>;
+				label = "ART";
+				read-only;
+			};
+
+			partition@60000 {
+				reg = <0x60000 0x1f80000>;
+				label = "firmware";
+			};
+
+			partition@1fe0000 {
+				reg = <0x1fe0000 0x20000>;
+				label = "user_property";
+				read-only;
+			};
+		};
+	};
+};
+
+&spi {
+	status = "okay";
+	cs-gpios = <0>, <0>;
+	num-cs = <2>;
+
+	flash0: flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+	};
+
+	flash1: flash@1 {
+		compatible = "jedec,spi-nor";
+		reg = <1>;
+		spi-max-frequency = <25000000>;
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy-mask = <0x1>;
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+		phy-mode = "rgmii";
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	mtd-mac-address = <&ART 0x1002>;
+
+	phy-mode = "rgmii";
+	phy-handle = <&phy0>;
+};
+
+&pll {
+	clocks = <&extosc>;
+};
+
+&uart {
+	status = "okay";
+};
+
+&usb_phy {
+	status = "okay";
+};
+
+&usb {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	hub_port: port@1 {
+		reg = <1>;
+		#trigger-source-cells = <0>;
+	};
+};
-- 
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