ath79: add support for D-Link DAP-2695-A1

Hardware:
* SoC: Qualcomm Atheros QCA9558
* RAM: 256MB
* Flash: 16MB SPI NOR
* Ethernet: 2x 10/100/1000 (1x 802.3at PoE-PD)
* WiFi 2.4GHz: Qualcomm Atheros QCA9558
* WiFi 5GHz: Qualcomm Ahteros QCA9880-2R4E
* LEDS: 1x 5GHz, 1x 2.4GHz, 1x LAN1(POE), 1x LAN2, 1x POWER
* Buttons: 1x RESET
* UART: 1x RJ45 RS-232 Console port

Installation via stock firmware:
* Install the factory image via the stock firmware web interface

Installation via bootloader Emergency Web Server:
* Connect your PC to the LAN1(PoE) port
* Configure your PC with IP address 192.168.0.90
* Open a serial console to the Console port (115200,8n1)
* Press "q" within 2s when "press 'q' to stop autoboot" appears
* Open http://192.168.0.50 in a browser
* Upload either the factory or the sysupgrade image
* Once you see "write image into flash...OK,dest addr=0x9f070000" you
  can power-cycle the device. Ignore "checksum bad" messages.

Setting the MAC addresses for the ethernet interfaces via
/etc/board.d/02_network adds the following snippets to
/etc/config/network:

config device 'lan_eth0_1_dev'
        option name 'eth0.1'
        option macaddr 'xx:xx:xx:xx:xx:xx'

config device 'wan_eth1_2_dev'
        option name 'eth1.2'
        option macaddr 'xx:xx:xx:xx:xx:xx'

This would result in the proper MAC addresses being set for the VLAN
subinterfaces, but the parent interfaces would still have a random MAC
address. Using untagged VLANs could solve this, but would still leave
those extra snippets in /etc/config/network, and then the device VLAN
setup would differ from the one used in ar71xx. Therefore, the MAC
addresses of the ethernet interfaces are being set via preinit instead.

The bdcfg partition contains 4 MAC address labels:
 - lanmac
 - wanmac
 - wlanmac
 - wlanmac_a

The first 3 all contain the same MAC address, which is also the one on
the label.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Reviewed-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 176 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/qca9558_dlink_dap-2695-a1.dts b/target/linux/ath79/dts/qca9558_dlink_dap-2695-a1.dts
new file mode 100644
index 0000000000..4ae9ee2b47
--- /dev/null
+++ b/target/linux/ath79/dts/qca9558_dlink_dap-2695-a1.dts
@@ -0,0 +1,176 @@
+// 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 "qca955x.dtsi"
+
+/ {
+	compatible = "dlink,dap-2695-a1", "qca,qca9558";
+	model = "D-link DAP-2695-A1";
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+	};
+
+	aliases {
+		led-boot = &led_power_red;
+		led-failsafe = &led_power_red;
+		led-running = &led_power_green;
+		led-upgrade = &led_power_red;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power_green: power_green {
+			label = "d-link:green:power";
+			gpios = <&gpio 23 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		led_power_red: power_red {
+			label = "d-link:red:power";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+
+		wifi2g {
+			label = "d-link:green:wifi2g";
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&spi {
+	status = "okay";
+	num-cs = <1>;
+
+	flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "mx25l12805d";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x040000>;
+				read-only;
+			};
+
+			partition@40000 {
+				label = "bdcfg";
+				reg = <0x040000 0x010000>;
+				read-only;
+			};
+
+			partition@50000 {
+				label = "rgdb";
+				reg = <0x050000 0x010000>;
+				read-only;
+			};
+
+			partition@60000 {
+				label = "langpack";
+				reg = <0x060000 0x010000>;
+				read-only;
+			};
+
+			partition@70000 {
+				compatible = "wrg";
+				label = "firmware";
+				reg = <0x070000 0xf00000>;
+			};
+
+			partition@f70000 {
+				label = "captival";
+				reg = <0xf70000 0x070000>;
+				read-only;
+			};
+
+			partition@fe0000 {
+				label = "certificate";
+				reg = <0xfe0000 0x010000>;
+				read-only;
+			};
+
+			art: partition@ff0000 {
+				label = "art";
+				reg = <0xff0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+
+		qca,ar8327-initvals = <
+			0x04 0x07600000 /* PORT0_PAD_CTRL */
+			0x0c 0x00080080 /* PORT6_PAD_CTRL */
+			0x7c 0x0000007e /* PORT0_STATUS */
+			0x94 0x0000007e /* PORT6_STATUS */
+		>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&phy0>;
+	phy-mode = "rgmii";
+	pll-data = <0x56000000 0x00000101 0x00001616>;
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&eth1 {
+	status = "okay";
+
+	phy-mask = <0>;
+	phy-mode = "sgmii";
+	pll-data = <0x03000101 0x00000101 0x00001616>;
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&pcie0 {
+	status = "okay";
+};
+
+&uart {
+	status = "okay";
+};
+
+&wmac {
+	status = "okay";
+
+	qca,no-eeprom;
+};