ath79: add support for ASUS RP-AC51

Asus RP-AC51 Repeater
Category:
AC750 300+433 (OEM w. unstable driver)
AC1200 300+866 (OpenWrt w. stable driver)

Hardware specifications:
Board: AP147
SoC: QCA9531 2.4G b/g/n
WiFi: QCA9886 5G n/ac
DRAM: 128MB DDR2
Flash: gd25q128 16MB SPI-NOR
LAN/WAN: AR8229 1x100M
Clocks: CPU:650MHz, DDR:600MHz, AHB:200MHz

MAC addresses as verified by OEM firmware:
use address source
Lan/W2G *:C8 art 0x1002 (label)
5G *:CC art 0x5006

Installation:

Asus windows recovery tool:

install the Asus firmware restoration utility
unplug the router, hold the reset button while powering it on
release when the power LED flashes slowly
specify a static IP on your computer:
IP address: 192.168.1.75
Subnet mask 255.255.255.0
Start the Asus firmware restoration utility, specify the factory image
and press upload
Do not power off the device after OpenWrt has booted until the LED flashing.
TFTP Recovery method:

set computer to a static ip, 192.168.1.10
connect computer to the LAN 1 port of the router
hold the reset button while powering on the router for a few seconds
send firmware image using a tftp client; i.e from linux:
$ tftp
tftp> binary
tftp> connect 192.168.1.1
tftp> put factory.bin
tftp> quit

Signed-off-by: Tamas Balogh <tamasbalogh@hotmail.com>

6 files changed, 165 insertions, 6 deletions

diff --git a/target/linux/ath79/dts/qca9531_asus_rp-ac51.dts b/target/linux/ath79/dts/qca9531_asus_rp-ac51.dts
new file mode 100644
index 0000000000..ec8b825ef2
--- /dev/null
+++ b/target/linux/ath79/dts/qca9531_asus_rp-ac51.dts
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qca953x.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "ASUS RP-AC51";
+	compatible = "asus,rp-ac51", "qca,qca9531";
+
+	aliases {
+		led-boot = &led_wps;
+		led-failsafe = &led_wps;
+		led-running = &led_wps;
+		led-upgrade = &led_wps;
+		label-mac-device = &eth0;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		wps {
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		reset {
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power: power {
+			label = "blue:power";
+			gpios = <&gpio 4 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_wps: wps {
+			label = "red:wps";
+			gpios = <&gpio 15 GPIO_ACTIVE_HIGH>;
+		};
+
+		lan {
+			label = "blue:lan";
+			gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
+		};
+
+		wlan2g {
+			label = "blue:wlan2g";
+			gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+		};
+
+		wlan5g {
+			label = "blue:wlan5g";
+			gpios = <&gpio 2 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&pcie0 {
+	status = "okay";
+};
+
+&spi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x40000>;
+				read-only;
+			};
+
+			partition@40000 {
+				label = "u-boot-env";
+				reg = <0x040000 0x10000>;
+				read-only;
+			};
+
+			art: partition@50000 {
+				label = "art";
+				reg = <0x050000 0x10000>;
+				read-only;
+
+				compatible = "nvmem-cells";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				macaddr_art_0: macaddr@0 {
+					reg = <0x0 0x6>;
+				};
+
+				macaddr_art_1002: macaddr@1002 {
+					reg = <0x1002 0x6>;
+				};
+			};
+
+			partition@60000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x060000 0xfa0000>;
+			};
+		};
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&swphy4>;
+
+	nvmem-cells = <&macaddr_art_0>;
+	nvmem-cell-names = "mac-address";
+};
+
+&eth1 {
+	nvmem-cells = <&macaddr_art_1002>;
+	nvmem-cell-names = "mac-address";
+};
+
+&wmac {
+	status = "okay";
+
+	qca,no-eeprom;
+};
diff --git a/target/linux/ath79/generic/base-files/etc/board.d/01_leds b/target/linux/ath79/generic/base-files/etc/board.d/01_leds
index 0802b8345f..b3a8b2fbb6 100644
--- a/target/linux/ath79/generic/base-files/etc/board.d/01_leds
+++ b/target/linux/ath79/generic/base-files/etc/board.d/01_leds
@@ -61,6 +61,11 @@ asus,pl-ac56)
 	ucidef_set_led_netdev "wlan2g" "WLAN2G" "green:wlan2g" "wlan1" "link"
 	ucidef_set_led_netdev "wlan5g" "WLAN5G" "green:wlan5g" "wlan0" "link"
 	;;
+asus,rp-ac51)
+	ucidef_set_led_netdev "lan" "LAN" "blue:lan" "eth0"
+	ucidef_set_led_netdev "wlan2g" "WLAN2G" "blue:wlan2G" "wlan1" "link"
+	ucidef_set_led_netdev "wlan5g" "WLAN5G" "blue:wlan5G" "wlan0" "link"
+	;;
 asus,rp-ac66)
 	ucidef_set_rssimon "wlan0" "200000" "1"
 	ucidef_set_rssimon "wlan1" "200000" "1"
diff --git a/target/linux/ath79/generic/base-files/etc/board.d/02_network b/target/linux/ath79/generic/base-files/etc/board.d/02_network
index 8405c5f521..84221da80d 100644
--- a/target/linux/ath79/generic/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network
@@ -19,6 +19,7 @@ ath79_setup_interfaces()
 	araknis,an-700-ap-i-ac|\
 	arduino,yun|\
 	aruba,ap-105|\
+	asus,rp-ac51|\
 	asus,rp-ac66|\
 	avm,fritz1750e|\
 	avm,fritz300e|\
diff --git a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
index 3e4d9a556b..95439b9b27 100644
--- a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
+++ b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
@@ -13,6 +13,7 @@ case "$FIRMWARE" in
 		caldata_extract "art" 0x1000 0x800
 		;;
 	asus,pl-ac56|\
+	asus,rp-ac51|\
 	asus,rp-ac66)
 		caldata_extract "art" 0x1000 0x440
 		;;
diff --git a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index f522268e59..56e42f1e31 100644
--- a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -175,6 +175,13 @@ case "$FIRMWARE" in
 	;;
 "ath10k/pre-cal-pci-0000:00:00.0.bin")
 	case $board in
+	asus,rp-ac51|\
+	yuncore,a782|\
+	yuncore,xd4200)
+		caldata_extract "art" 0x5000 0x2f20
+		ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \
+			/lib/firmware/ath10k/QCA9888/hw2.0/board.bin
+		;;
 	comfast,cf-e313ac)
 		caldata_extract "art" 0x5000 0x2f20
 		ath10k_patch_mac $(mtd_get_mac_binary art 0x6)
@@ -250,12 +257,6 @@ case "$FIRMWARE" in
 		ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \
 			/lib/firmware/ath10k/QCA9888/hw2.0/board.bin
 		;;
-	yuncore,a782|\
-	yuncore,xd4200)
-		caldata_extract "art" 0x5000 0x2f20
-		ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \
-			/lib/firmware/ath10k/QCA9888/hw2.0/board.bin
-		;;
 	esac
 	;;
 *)
diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index 6fc844b4b2..8d059f3679 100644
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -389,6 +389,17 @@ define Device/asus_pl-ac56
 endef
 TARGET_DEVICES += asus_pl-ac56
 
+define Device/asus_rp-ac51
+  SOC := qca9531
+  DEVICE_VENDOR := ASUS
+  DEVICE_MODEL := RP-AC51
+  IMAGE_SIZE := 16000k
+  IMAGES += factory.bin
+  DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9888-ct \
+	-swconfig
+endef
+TARGET_DEVICES += asus_rp-ac51
+
 define Device/asus_rp-ac66
   SOC := qca9563
   DEVICE_VENDOR := ASUS