ath79: add support for Netgear R6100

Netgear R6100 is a dual-band Wi-Fi 5 (AC1200) router based on Qualcomm
Atheros (AR9344 + QCA9882) platform. Support for this device was first
introduced in 15f6f67d18 (ar71xx). FCC ID: PY312400225.

Specifications:

- Atheros AR9344 (560 MHz)
- 128 MB of RAM (DDR2)
- 128 MB of flash (parallel NAND)
- 2T2R 2.4 GHz Wi-Fi (AR9344)
- 2T2R 5 GHz Wi-Fi (QCA9882)
- 5x 10/100 Mbps Ethernet (AR9344)
- 4x internal antenna
- 1x USB 2.0 (GPIO-controlled power)
- 6x LED, 3x button (reset, Wi-Fi, WPS)
- UART (4-pin, 2.54 mm pitch) header on PCB
- 1x mechanical power switch
- DC jack for main power input (12 V)

WARNING: sysupgrade from older stable releases is not possible, fresh
installation (via vendor's GUI or TFTP based recovery) is required.
Reason for that is increased kernel partition size.

Installation:

Use the 'factory' image under vendor's GUI or via TFTP U-Boot recovery.
You can use the 'nmrpflash' tool at a boot time, before kernel is loaded
or start it manually by pressing the 'reset' button for ~20 seconds from
powering up the device (U-Boot will start TFTP server on 192.168.1.1,
use TFTP client to send the image).

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
Signed-off-by: Michael Pratt <mcpratt@pm.me>
Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>

5 files changed, 253 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/ar9344_netgear_r6100.dts b/target/linux/ath79/dts/ar9344_netgear_r6100.dts
new file mode 100644
index 0000000000..80951d6249
--- /dev/null
+++ b/target/linux/ath79/dts/ar9344_netgear_r6100.dts
@@ -0,0 +1,231 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "ar9344.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Netgear R6100";
+	compatible = "netgear,r6100", "qca,ar9344";
+
+	aliases {
+		label-mac-device = &eth0;
+		led-boot = &led_power_green;
+		led-failsafe = &led_power_amber;
+		led-running = &led_power_green;
+		led-upgrade = &led_power_green;
+	};
+
+	gpio-export {
+		compatible = "gpio-export";
+		#size-cells = <0>;
+
+		usb-power {
+			gpio-export,name = "usb-power";
+			gpio-export,output = <1>;
+			gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		rfkill {
+			label = "rfkill";
+			linux,code = <KEY_RFKILL>;
+			gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+
+		wps {
+			label = "wps";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power_amber: power_amber {
+			label = "amber:power";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+
+		led_power_green: power_green {
+			label = "green:power";
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+		};
+
+		usb {
+			label = "blue:usb";
+			gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+			trigger-sources = <&hub_port>;
+			linux,default-trigger = "usbport";
+		};
+
+		wan_amber {
+			label = "amber:wan";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+
+		wan_green {
+			label = "green:wan";
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan {
+			label = "blue:wlan";
+			gpios = <&gpio 0 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&swphy0>;
+
+	nvmem-cells = <&macaddr_caldata_6>;
+	nvmem-cell-names = "mac-address";
+
+	gmac-config {
+		device = <&gmac>;
+		switch-phy-swap = <1>;
+	};
+};
+
+&eth1 {
+	status = "okay";
+
+	nvmem-cells = <&macaddr_caldata_0>;
+	nvmem-cell-names = "mac-address";
+};
+
+&nand {
+	status = "okay";
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "u-boot";
+			reg = <0x0000000 0x0020000>;
+			read-only;
+		};
+
+		caldata: partition@20000 {
+			label = "caldata";
+			reg = <0x0020000 0x0040000>;
+			read-only;
+		};
+
+		partition@60000 {
+			label = "caldata-backup";
+			reg = <0x0060000 0x0040000>;
+			read-only;
+		};
+
+		partition@a0000 {
+			label = "config";
+			reg = <0x00a0000 0x0080000>;
+			read-only;
+		};
+
+		partition@120000 {
+			label = "pot";
+			reg = <0x0120000 0x0080000>;
+			read-only;
+		};
+
+		partition@1a0000 {
+			label = "kernel";
+			reg = <0x01a0000 0x0400000>;
+		};
+
+		partition@5a0000 {
+			label = "ubi";
+			reg = <0x05a0000 0x7560000>;
+		};
+
+		partition@7b00000 {
+			label = "language";
+			reg = <0x7b00000 0x0200000>;
+			read-only;
+		};
+
+		partition@7d00000 {
+			label = "traffic_meter";
+			reg = <0x7d00000 0x0300000>;
+			read-only;
+		};
+	};
+};
+
+&pcie {
+	status = "okay";
+
+	wifi@0,0,0 {
+		compatible = "qcom,ath10k";
+		reg = <0x0000 0 0 0 0>;
+
+		nvmem-cells = <&macaddr_caldata_c>;
+		nvmem-cell-names = "mac-address";
+	};
+};
+
+&ref {
+	clock-frequency = <40000000>;
+};
+
+&usb {
+	status = "okay";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	hub_port: port@1 {
+		reg = <1>;
+		#trigger-source-cells = <0>;
+	};
+};
+
+&usb_phy {
+	status = "okay";
+};
+
+&wmac {
+	status = "okay";
+
+	mtd-cal-data = <&caldata 0x1000>;
+};
+
+&caldata {
+	compatible = "nvmem-cells";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	macaddr_caldata_0: macaddr@0 {
+		reg = <0x0 0x6>;
+	};
+
+	macaddr_caldata_6: macaddr@6 {
+		reg = <0x6 0x6>;
+	};
+
+	macaddr_caldata_c: macaddr@c {
+		reg = <0xc 0x6>;
+	};
+};
diff --git a/target/linux/ath79/image/nand.mk b/target/linux/ath79/image/nand.mk
index b34e796ac3..91fd7ec301 100644
--- a/target/linux/ath79/image/nand.mk
+++ b/target/linux/ath79/image/nand.mk
@@ -215,6 +215,17 @@ define Device/netgear_ath79_nand
   UBINIZE_OPTS := -E 5
 endef
 
+define Device/netgear_r6100
+  SOC := ar9344
+  DEVICE_MODEL := R6100
+  UIMAGE_MAGIC := 0x36303030
+  NETGEAR_BOARD_ID := R6100
+  NETGEAR_HW_ID := 29764434+0+128+128+2x2+2x2
+  $(Device/netgear_ath79_nand)
+  DEVICE_PACKAGES += kmod-ath10k-ct ath10k-firmware-qca988x-ct
+endef
+TARGET_DEVICES += netgear_r6100
+
 define Device/netgear_wndr3700-v4
   SOC := ar9344
   DEVICE_MODEL := WNDR3700
diff --git a/target/linux/ath79/nand/base-files/etc/board.d/01_leds b/target/linux/ath79/nand/base-files/etc/board.d/01_leds
index f694d07e9c..dc7d84df95 100644
--- a/target/linux/ath79/nand/base-files/etc/board.d/01_leds
+++ b/target/linux/ath79/nand/base-files/etc/board.d/01_leds
@@ -14,6 +14,9 @@ glinet,gl-ar300m-nand|\
 glinet,gl-ar300m-nor)
 	ucidef_set_led_netdev "lan" "LAN" "green:lan" "eth0"
 	;;
+netgear,r6100)
+	ucidef_set_led_netdev "wan-green" "WAN (green)" "green:wan" "eth1"
+	;;
 netgear,wndr3700-v4|\
 netgear,wndr4300|\
 netgear,wndr4300sw|\
diff --git a/target/linux/ath79/nand/base-files/etc/board.d/02_network b/target/linux/ath79/nand/base-files/etc/board.d/02_network
index dbb9e68150..76cdab18f8 100644
--- a/target/linux/ath79/nand/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/nand/base-files/etc/board.d/02_network
@@ -25,6 +25,11 @@ ath79_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0@eth0" "2:lan:2" "3:lan:1" "1:wan"
 		;;
+	netgear,r6100)
+		ucidef_set_interface_wan "eth1"
+		ucidef_add_switch "switch0" \
+			"0@eth0" "1:lan:4" "2:lan:1" "3:lan:2" "4:lan:3"
+		;;
 	netgear,wndr3700-v4|\
 	netgear,wndr4300|\
 	netgear,wndr4300sw|\
diff --git a/target/linux/ath79/nand/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ath79/nand/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index 71dfb161e4..03e225ddde 100644
--- a/target/linux/ath79/nand/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ath79/nand/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -23,6 +23,9 @@ case "$FIRMWARE" in
 		caldata_extract "art" 0x5000 0x844
 		ath10k_patch_mac $(macaddr_add $(mtd_get_mac_binary art 0x0) 1)
 		;;
+	netgear,r6100)
+		caldata_extract "caldata" 0x5000 0x844
+		;;
 	zyxel,nbg6716)
 		caldata_extract "art" 0x5000 0x844
 		ath10k_patch_mac $(macaddr_add $(mtd_get_mac_ascii u-boot-env ethaddr) 1)