ath79: Add support for OpenMesh MR600 v1

Device specifications:
======================

* Qualcomm/Atheros AR9344 rev 2
* 560/450/225 MHz (CPU/DDR/AHB)
* 128 MB of RAM
* 16 MB of SPI NOR flash
  - 2x 7 MB available; but one of the 7 MB regions is the recovery image
* 2T2R 2.4 GHz Wi-Fi
* 2T2R 5 GHz Wi-Fi
* 4x GPIO-LEDs (2x wifi, 1x wps, 1x power)
* 1x GPIO-button (reset)
* TTL pins are on board (arrow points to VCC, then follows: GND, TX, RX)
* 1x ethernet
  - AR8035 ethernet PHY (RGMII)
  - 10/100/1000 Mbps Ethernet
  - 802.3af POE
  - used as LAN interface
* 12-24V 1A DC
* internal antennas

Flashing instructions:
======================

Various methods can be used to install the actual image on the flash.
Two easy ones are:

ap51-flash
----------

The tool ap51-flash (https://github.com/ap51-flash/ap51-flash) should be
used to transfer the image to the u-boot when the device boots up.

initramfs from TFTP
-------------------

The serial console must be used to access the u-boot shell during bootup.
It can then be used to first boot up the initramfs image from a TFTP server
(here with the IP 192.168.1.21):

   setenv serverip 192.168.1.21
   setenv ipaddr 192.168.1.1
   tftpboot 0c00000 <filename-of-initramfs-kernel>.bin && bootm $fileaddr

The actual sysupgrade image can then be transferred (on the LAN port) to the
device via

  scp <filename-of-squashfs-sysupgrade>.bin root@192.168.1.1:/tmp/

On the device, the sysupgrade must then be started using

  sysupgrade -n /tmp/<filename-of-squashfs-sysupgrade>.bin

Signed-off-by: Sven Eckelmann <sven@narfation.org>
[rebase, make WLAN LEDs consistent, add LED migration]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

7 files changed, 207 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/ar9344_openmesh_mr600-v1.dts b/target/linux/ath79/dts/ar9344_openmesh_mr600-v1.dts
new file mode 100644
index 0000000000..6c20f2715f
--- /dev/null
+++ b/target/linux/ath79/dts/ar9344_openmesh_mr600-v1.dts
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "ar9344_openmesh_mr600.dtsi"
+
+/ {
+	compatible = "openmesh,mr600-v1", "qca,ar9344";
+	model = "OpenMesh MR600 v1";
+
+	aliases {
+		led-boot = &led_power_orange;
+		led-failsafe = &led_power_orange;
+		led-running = &led_power_orange;
+		led-upgrade = &led_power_orange;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		wifi5g_green {
+			label = "green:wifi5g";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		wps_blue {
+			label = "blue:wps";
+			gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+		};
+
+		led_power_orange: power_orange {
+			label = "orange:power";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+	};
+
+	leds-ath9k {
+		compatible = "gpio-leds";
+
+		wifi2g {
+			label = "blue:wifi2g";
+			gpios = <&ath9k 0 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+	};
+};
diff --git a/target/linux/ath79/dts/ar9344_openmesh_mr600.dtsi b/target/linux/ath79/dts/ar9344_openmesh_mr600.dtsi
new file mode 100644
index 0000000000..987a32e344
--- /dev/null
+++ b/target/linux/ath79/dts/ar9344_openmesh_mr600.dtsi
@@ -0,0 +1,133 @@
+// 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>
+
+/ {
+	chosen {
+		/delete-property/ bootargs;
+	};
+
+	aliases {
+		serial0 = &uart;
+		label-mac-device = &eth0;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&ref {
+	clock-frequency = <40000000>;
+};
+
+&uart {
+	status = "okay";
+};
+
+&spi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+
+		/* partitions are passed via bootloader */
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x000000 0x040000>;
+				read-only;
+			};
+
+			partition@40000 {
+				label = "u-boot-env";
+				reg = <0x040000 0x010000>;
+			};
+
+			partition@50000 {
+				label = "custom";
+				reg = <0x050000 0x060000>;
+				read-only;
+			};
+
+			partition@b0000 {
+				label = "inactive";
+				reg = <0x0b0000 0x7a0000>;
+			};
+
+			partition@850000 {
+				label = "inactive2";
+				reg = <0x850000 0x7a0000>;
+			};
+
+			art: partition@ff0000 {
+				label = "ART";
+				reg = <0xff0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy-mask = <0x1>;
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+		eee-broken-100tx;
+		eee-broken-1000t;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	pll-data = <0x06000000 0x00000101 0x00001313>;
+
+	mtd-mac-address = <&art 0x0>;
+
+	phy-mode = "rgmii";
+	phy-handle = <&phy0>;
+
+	gmac-config {
+		device = <&gmac>;
+		rgmii-gmac0 = <1>;
+	};
+};
+
+&wmac {
+	status = "okay";
+
+	mtd-cal-data = <&art 0x1000>;
+	mtd-mac-address = <&art 0x0>;
+	mtd-mac-address-increment = <1>;
+};
+
+&pcie {
+	status = "okay";
+
+	ath9k: wifi@0,0 {
+		compatible = "pci168c,0030";
+		reg = <0x0000 0 0 0 0>;
+		qca,no-eeprom;
+		mtd-mac-address = <&art 0x0>;
+		mtd-mac-address-increment = <8>;
+	};
+};
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 fbe2545adb..df0842fc63 100755
--- a/target/linux/ath79/generic/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network
@@ -46,6 +46,7 @@ ath79_setup_interfaces()
 	netgear,ex7300|\
 	ocedo,koala|\
 	ocedo,raccoon|\
+	openmesh,mr600-v1|\
 	pcs,cap324|\
 	pisen,ts-d084|\
 	pisen,wmb001n|\
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 95ad2a57ef..150c70d68b 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
@@ -120,6 +120,9 @@ case "$FIRMWARE" in
 	ubnt,rocket-m)
 		caldata_extract "art" 0x1000 0x1000
 		;;
+	openmesh,mr600-v1)
+		caldata_extract "ART" 0x5000 0x440
+		;;
 	wd,mynet-n750)
 		caldata_extract "art" 0x5000 0x440
 		ath9k_patch_mac $(mtd_get_mac_ascii devdata "wlan5mac")
diff --git a/target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration b/target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration
index 231afd9f57..871d84ed63 100644
--- a/target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration
+++ b/target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration
@@ -17,6 +17,9 @@ engenius,epg5000)
 glinet,gl-mifi)
 	migrate_leds ":net=:3g4g"
 	;;
+openmesh,mr600-v1)
+	migrate_leds ":wlan58=:wifi5g"
+	;;
 pcs,cap324)
 	migrate_leds "lan:amber=amber:lan" "lan:green=green:lan"
 	;;
diff --git a/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh b/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
index 79e023482b..81dd911564 100644
--- a/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
@@ -50,6 +50,7 @@ platform_do_upgrade() {
 	jjplus,ja76pf2)
 		redboot_fis_do_upgrade "$1" linux
 		;;
+	openmesh,mr600-v1|\
 	openmesh,om2p-v2|\
 	openmesh,om2p-v4|\
 	openmesh,om2p-hs-v1|\
diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index ccc9ff2ac2..14546f6ade 100644
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -1525,6 +1525,26 @@ define Device/ocedo_ursus
 endef
 TARGET_DEVICES += ocedo_ursus
 
+define Device/openmesh_mr600-common
+  SOC := ar9344
+  DEVICE_VENDOR := OpenMesh
+  DEVICE_MODEL := MR600
+  DEVICE_PACKAGES := uboot-envtools
+  IMAGE_SIZE := 7808k
+  BLOCKSIZE := 64k
+  KERNEL := kernel-bin | append-dtb | lzma | uImage lzma | \
+	pad-to $$(BLOCKSIZE)
+  IMAGE/sysupgrade.bin := append-rootfs | pad-rootfs | \
+	openmesh-image ce_type=MR600 | append-metadata
+endef
+
+define Device/openmesh_mr600-v1
+  $(Device/openmesh_mr600-common)
+  DEVICE_VARIANT := v1
+  SUPPORTED_DEVICES += mr600
+endef
+TARGET_DEVICES += openmesh_mr600-v1
+
 define Device/openmesh_om2p-common
   DEVICE_VENDOR := OpenMesh
   DEVICE_PACKAGES := uboot-envtools