ath79: add support for COMFAST CF-E560AC

This commit adds support for the COMFAST CF-E560AC, an ap143 based
in-wall access point.

Specifications:
 - SoC: Qualcomm Atheros QCA9531
 - RAM: 128 MB DDR2 (Winbond W971GG6SB-25)
 - Storage: 16 MB NOR (Winbond 25Q128JVSO)
 - WAN: 1x 10/100 PoE ethernet (48v)
 - LAN: 4x 10/100 ethernet
 - WLAN1: QCA9531 - 802.11b/g/n - 2x SKY85303-21 FEM
 - WLAN2: QCA9886 - 802.11ac/n/a - 2x SKY85735-11 FEM
 - USB: one external USB2.0 port
 - UART: 3.3v, 2.54mm headers already populated on board
 - LED: 7x external
 - Button: 1x external
 - Boot: U-Boot 1.1.4 (pepe2k/u-boot_mod)

MAC addressing:

- stock
  LAN    *:40 (label)
  WAN    *:41
  5G     *:42
  2.4G   *:4a

- flash (art partition)
  0x0    *:40 (label)
  0x6    *:42
  0x1002 *:41
  0x5006 *:43

This device contains valid MAC addresses in art 0x0, 0x6, 0x1002 and
0x5006, however the vendor firmware only reads from art:0x0 for the LAN
interface and then increments in 02_network. They also jump 8 addresses
for the second wifi interface (2.4 GHz). This behavior has been duplicated
in the DTS and ath10k hotplug to align addresses with the vendor firmware
v2.6.0.

Recovery instructions:

This device contains built-in u-boot tftp recovery.

1. Configure PC with static IP 192.168.1.10/24 and tftp server.
2. Place desired image at /firmware_auto.bin at tftp root.
3. Connect device to PC, and power on.
4. Device will fetch flash from tftp, flash and reboot into new image.

Signed-off-by: August Huber <auh@google.com>
[move jtag_disable_pins, remove unnecessary statuses in DTS, remove
duplicate entry in 11-ath10k-caldata, remove hub_port0 label in DTS]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 174 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/qca9531_comfast_cf-e560ac.dts b/target/linux/ath79/dts/qca9531_comfast_cf-e560ac.dts
new file mode 100644
index 0000000000..d1c2628d87
--- /dev/null
+++ b/target/linux/ath79/dts/qca9531_comfast_cf-e560ac.dts
@@ -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 "qca953x.dtsi"
+
+/ {
+	compatible = "comfast,cf-e560ac", "qca,qca9531";
+	model = "COMFAST CF-E560AC";
+
+	aliases {
+		serial0 = &uart;
+		label-mac-device = &eth1;
+		led-boot = &led_system;
+		led-failsafe = &led_system;
+		led-upgrade = &led_system;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&jtag_disable_pins>;
+
+		lan1 {
+			label = "cf-e560ac:blue:lan1";
+			gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
+		};
+
+		lan2 {
+			label = "cf-e560ac:blue:lan2";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+
+		lan3 {
+			label = "cf-e560ac:blue:lan3";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+
+		lan4 {
+			label = "cf-e560ac:blue:lan4";
+			gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+		};
+
+		led_system: system {
+			label = "cf-e560ac:blue:system";
+			gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+		};
+
+		wan {
+			label = "cf-e560ac:blue:wan";
+			gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan {
+			label = "cf-e560ac:blue:wlan";
+			gpios = <&gpio 0 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+	};
+
+	watchdog {
+		compatible = "linux,wdt-gpio";
+		gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+		hw_algo = "toggle";
+		hw_margin_ms = <1200>;
+		always-running;
+	};
+};
+
+&spi {
+	status = "okay";
+
+	num-cs = <1>;
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x010000>;
+				read-only;
+			};
+
+			art: partition@10000 {
+				label = "art";
+				reg = <0x010000 0x010000>;
+				read-only;
+			};
+
+			partition@20000 {
+				compatible = "denx,uimage";
+				label = "firmware";
+				reg = <0x020000 0xfc0000>;
+			};
+
+			partition@fe0000 {
+				label = "configs";
+				reg = <0xfe0000 0x010000>;
+				read-only;
+			};
+
+			partition@ff0000 {
+				label = "nvram";
+				reg = <0xff0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&pcie0 {
+	status = "okay";
+};
+
+&uart {
+	status = "okay";
+};
+
+&usb_phy {
+	status = "okay";
+};
+
+&usb0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	port@1 {
+		reg = <1>;
+		#trigger-source-cells = <0>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&swphy4>;
+
+	mtd-mac-address = <&art 0x0>;
+	mtd-mac-address-increment = <1>;
+};
+
+&eth1 {
+	mtd-mac-address = <&art 0x0>;
+};
+
+&wmac {
+	status = "okay";
+
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&art 0x0>;
+	mtd-mac-address-increment = <10>;
+};