ath79: Add support for MOXA AWK-1137C

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

* Qualcomm/Atheros AR9344
* 128 MB of RAM
* 16 MB of SPI NOR flash
* 2x 10/100 Mbps Ethernet
* 2T2R 2.4/5 GHz Wi-Fi
* 4x GPIO-LEDs (1x wifi, 2x ethernet, 1x power)
* 1x GPIO-button (reset)
* 2x fast ethernet
  - lan1
    + builtin switch port 1
    + used as WAN interface
  - lan2
    + builtin switch port 2
    + used as LAN interface
* 9-30V DC
* external antennas

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

Log in to https://192.168.127.253/
   Username: admin
   Password: moxa

Open Maintenance > Firmware Upgrade and install the factory image.

Serial console access:
======================

Connect a RS232-USB converter to the maintenance port.
   Pinout: (reset button left) [GND] [NC] [RX] [TX]

Firmware Recovery:
==================

When the WLAN and SYS LEDs are flashing, the device is in recovery mode.

Serial console access is required to proceed with recovery.

Download the original image from MOXA and rename it to 'awk-1137c.rom'.
Set up a TFTP server at 192.168.127.1 and connect to a lan port.

Follow the instructions on the serial console to start the recovery.

Signed-off-by: Maximilian Martin <mm@simonwunderlich.de>

include/image-commands.mk

@@ -399,6 +399,15 @@ define Build/lzma-no-dict
 	@mv $@.new $@
 endef
 
+define Build/moxa-encode-fw
+	$(TOPDIR)/scripts/moxa-encode-fw.py \
+		--input $@ \
+		--output $@ \
+		--magic $(MOXA_MAGIC) \
+		--hwid $(MOXA_HWID) \
+		--buildid 00000000
+endef
+
 define Build/netgear-chk
 	$(STAGING_DIR_HOST)/bin/mkchkimg \
 		-o $@.new \

package/boot/uboot-envtools/files/ath79

@@ -47,6 +47,7 @@ etactica,eg200|\
 glinet,gl-ar750s-nor|\
 glinet,gl-ar750s-nor-nand|\
 librerouter,librerouter-v1|\
+moxa,awk-1137c|\
 netgear,ex7300|\
 netgear,ex7300-v2|\
 netgear,wndr4300-v2|\

scripts/moxa-encode-fw.py

@@ -0,0 +1,109 @@
+#! /usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+import argparse
+import struct
+
+from binascii import crc32
+from dataclasses import dataclass
+from itertools import cycle
+from typing import List
+
+
+def xor(data: bytes) -> bytes:
+    passphrase = "Seek AGREEMENT for the date of completion.\0"
+    pw = cycle(bytearray(passphrase.encode('ascii')))
+    return bytearray(b ^ next(pw) for b in data)
+
+
+def add_fw_header(data: bytes, magic: int, hwid: int, build_id: int,
+                  offsets: List[int]) -> bytes:
+    unknown_1 = 0x01
+    unknown_2 = 0x0000
+    unknown_3 = 0x00000000
+    unknown_4 = 0x01000000
+    file_crc = crc(data, 0)
+
+    header_struct = struct.Struct('>QIBBHIIIIII' + 'I' * len(offsets))
+    header_size = header_struct.size
+    file_size = header_size + len(data)
+
+    header_offsets = map(lambda x: x + header_size, offsets)
+
+    header_data = header_struct.pack(magic, file_size, unknown_1, len(offsets),
+                                     unknown_2, hwid, build_id, unknown_3,
+                                     build_id, unknown_4, *header_offsets,
+                                     file_crc)
+    return header_data + data
+
+
+def add_file_header(data: bytes, filename: str, build_id: int) -> bytes:
+    unknown1 = 0x01000000
+    unknown2 = 0x00000000
+    file_crc = crc(data, 0)
+
+    header_struct = struct.Struct(">16sIIIII")
+    file_size = header_struct.size + len(data)
+
+    header_data = header_struct.pack(filename.encode('ascii'), file_size,
+                                     unknown1, build_id, unknown2, file_crc)
+    return header_data + data
+
+
+def crc(data: bytes, init_val: int) -> int:
+    return 0xffffffff ^ (crc32(data, 0xffffffff ^ init_val))
+
+
+@dataclass
+class Partition:
+    name: str
+    size: int
+
+
+def main():
+    partitions = [
+        Partition(name='kernel', size=2048 * 1024),
+        Partition(name='root', size=9216 * 1024),
+        Partition(name='userdisk', size=3076 * 1024),
+    ]
+
+    parser = argparse.ArgumentParser(prog='moxa-encode-fw',
+                                     description='MOXA IW firmware encoder')
+    parser.add_argument('-i', '--input', required=True, type=str, help='Firmware file')
+    parser.add_argument('-o', '--output', required=True, type=str, help="Output path for encoded firmware file")
+    parser.add_argument('-m', '--magic', required=True, type=lambda x: int(x,0), help="Magic for firmware header")
+    parser.add_argument('-d', '--hwid', required=True, type=lambda x: int(x,0), help="Hardware id of device")
+    parser.add_argument('-b', '--buildid', required=True, type=lambda x: int(x,0), help="Build id of firmware")
+    args = parser.parse_args()
+
+    with open(args.input, 'rb') as input_file:
+        firmware = bytearray(input_file.read())
+
+    offsets = []
+    pos_input = 0
+    pos_output = 0
+    firmware_seg = bytearray()
+
+    for partition in partitions:
+        part_data = firmware[pos_input:pos_input + partition.size]
+
+        # just to make sure that no partition is empty
+        if len(part_data) == 0:
+            part_data = bytearray([0x00])
+
+        header = add_file_header(part_data, partition.name, args.buildid)
+        firmware_seg += header
+
+        offsets.append(pos_output)
+        pos_input += partition.size
+        pos_output += len(header)
+
+    moxa_firmware = add_fw_header(firmware_seg, args.magic, args.hwid, args.buildid, offsets)
+
+    encrypted = xor(moxa_firmware)
+    with open(args.output, 'wb') as output_file:
+        output_file.write(encrypted)
+
+
+if __name__ == '__main__':
+    main()

target/linux/ath79/dts/ar9344_moxa_awk-1137c.dts

@@ -0,0 +1,184 @@
+// 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>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	compatible = "moxa,awk-1137c", "qca,ar9344";
+	model = "MOXA AWK-1137C";
+
+	aliases {
+		led-boot = &led_status_red;
+		led-failsafe = &led_status_red;
+		led-running = &led_status_green;
+		led-upgrade = &led_status_red;
+		label-mac-device = &eth1;
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 11 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		pinctrl-names = "default";
+
+		led_status_green: led-0 {
+			label = "green:status";
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_STATUS;
+			function-enumerator = <0>;
+			gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
+		};
+
+		led_status_red: led-1 {
+			label = "red:status";
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_STATUS;
+			function-enumerator = <1>;
+			gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
+		};
+
+		led-2 {
+			label = "green:wifi";
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_WLAN;
+			function-enumerator = <0>;
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		led-3 {
+			label = "green:lan1";
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_WAN;
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+		};
+
+		led-4 {
+			label = "green:lan2";
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+		};
+
+		led-5 {
+			label = "yellow:wifi";
+			color = <LED_COLOR_ID_YELLOW>;
+			function = LED_FUNCTION_WLAN;
+			function-enumerator = <1>;
+			gpios = <&gpio 21 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0assoc";
+		};
+	};
+};
+
+&ref {
+	clock-frequency = <40000000>;
+};
+
+&spi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+
+		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 = "firmware";
+				reg = <0x050000 0xe00000>;
+				compatible = "denx,uimage";
+			};
+
+			partition@e50000 {
+				label = "log1";
+				reg = <0xe50000 0x020000>;
+				read-only;
+			};
+
+			partition@e70000 {
+				label = "log2";
+				reg = <0xe70000 0x020000>;
+				read-only;
+			};
+
+			partition@e90000 {
+				label = "version";
+				reg = <0xe90000 0x020000>;
+				read-only;
+			};
+
+			partition@eb0000 {
+				label = "config1";
+				reg = <0xeb0000 0x020000>;
+				read-only;
+			};
+
+			partition@ed0000 {
+				label = "config2";
+				reg = <0xed0000 0x020000>;
+				read-only;
+			};
+
+			partition@ef0000 {
+				label = "config-data";
+				reg = <0xef0000 0x0c0000>;
+				read-only;
+			};
+
+			partition@fb0000 {
+				label = "mib0";
+				reg = <0xfb0000 0x030000>;
+				read-only;
+			};
+
+			art: partition@fe0000 {
+				label = "art";
+				reg = <0xfe0000 0x010000>;
+				read-only;
+			};
+
+			partition@ff0000 {
+				label = "fis";
+				reg = <0xff0000 0x010000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&eth1 {
+	status = "okay";
+};
+
+&wmac {
+	status = "okay";
+	qca,no-eeprom;
+};

target/linux/ath79/generic/base-files/etc/board.d/01_leds

@@ -302,6 +302,10 @@ tplink,cpe210-v3)
 meraki,mr16)
 	ucidef_set_led_netdev "wan" "WAN" "green:wan" "eth0"
 	;;
+moxa,awk-1137c)
+	ucidef_set_led_switch "wan" "LAN1" "green:lan1" "switch0" "0x02"
+	ucidef_set_led_switch "lan" "LAN2" "green:lan2" "switch0" "0x04"
+	;;
 netgear,wnr2200-8m|\
 netgear,wnr2200-16m)
 	ucidef_set_led_netdev "wan-amber" "WAN (amber)" "amber:wan" "eth0"

target/linux/ath79/generic/base-files/etc/board.d/02_network

@@ -240,7 +240,8 @@ ath79_setup_interfaces()
 	ubnt,routerstation)
 		ucidef_set_interfaces_lan_wan "eth1" "eth0"
 		;;
-	comfast,cf-e375ac)
+	comfast,cf-e375ac|\
+	moxa,awk-1137c)
 		ucidef_add_switch "switch0" \
 			"0@eth0" "1:wan" "2:lan"
 		;;
@@ -731,6 +732,11 @@ ath79_setup_macs()
 		lan_mac=$(mtd_get_mac_encrypted_deco $(find_mtd_part config))
 		label_mac=$lan_mac
 		;;
+	moxa,awk-1137c)
+		lan_mac=$(mtd_get_mac_ascii u-boot-env mac_addr)
+		wan_mac=$(mtd_get_mac_ascii u-boot-env mac_addr)
+		label_mac=$lan_mac
+		;;
 	nec,wf1200cr|\
 	nec,wg1200cr)
 		lan_mac=$(mtd_get_mac_ascii devdata "lanmac")

target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom

@@ -62,6 +62,10 @@ case "$FIRMWARE" in
 		caldata_extract "art" 0x1000 0x440
 		ath9k_patch_mac $(mtd_get_mac_ascii u-boot-env ethaddr)
 		;;
+	moxa,awk-1137c)
+		caldata_extract "art" 0x1000 0x440
+		ath9k_patch_mac $(mtd_get_mac_ascii u-boot-env mac_addr)
+		;;
 	nec,wg800hp)
 		caldata_extract "art" 0x1000 0x440
 		ath9k_patch_mac $(mtd_get_mac_text board_data 0x680)

target/linux/ath79/generic/base-files/etc/init.d/bootcount

@@ -8,6 +8,9 @@ boot() {
 	adtran,bsap1840)
 		fconfig -s -w -d $(find_mtd_part "RedBoot config") -n boot_cntb -x 0
 		;;
+	moxa,awk-1137c)
+		fw_setenv fwr_verify 0
+		;;
 	qihoo,c301)
 		local n=$(fw_printenv activeregion | cut -d = -f 2)
 		fw_setenv "image${n}trynum" 0

target/linux/ath79/generic/base-files/lib/preinit/10_fix_eth_mac.sh

@@ -28,6 +28,9 @@ preinit_set_mac_address() {
 	fortinet,fap-221-b)
 		ip link set dev eth0 address $(mtd_get_mac_text u-boot 0x3ff80 12)
 		;;
+	moxa,awk-1137c)
+		ip link set dev eth0 address $(mtd_get_mac_ascii u-boot-env mac_addr)
+		;;
 	tplink,deco-s4-v2)
 		base_mac=$(mtd_get_mac_encrypted_deco $(find_mtd_part config))
 		ip link set dev eth0 address $base_mac

target/linux/ath79/image/generic.mk

@@ -9,6 +9,7 @@ DEVICE_VARS += ADDPATTERN_ID ADDPATTERN_VERSION
 DEVICE_VARS += SEAMA_SIGNATURE SEAMA_MTDBLOCK
 DEVICE_VARS += KERNEL_INITRAMFS_PREFIX DAP_SIGNATURE
 DEVICE_VARS += EDIMAX_HEADER_MAGIC EDIMAX_HEADER_MODEL
+DEVICE_VARS += MOXA_MAGIC MOXA_HWID
 DEVICE_VARS += OPENMESH_CE_TYPE ZYXEL_MODEL_STRING
 DEVICE_VARS += SUPPORTED_TELTONIKA_DEVICES
 
@@ -1819,6 +1820,19 @@ define Device/mercury_mw4530r-v1
 endef
 TARGET_DEVICES += mercury_mw4530r-v1
 
+define Device/moxa_awk-1137c
+  SOC := ar9344
+  DEVICE_MODEL := AWK-1137C
+  DEVICE_VENDOR := MOXA
+  MOXA_MAGIC := 0x8919123028877702
+  MOXA_HWID := 0x01080000
+  IMAGE_SIZE := 14336k
+  DEVICE_PACKAGES := uboot-envtools
+  IMAGES += factory.rom
+  IMAGE/factory.rom := $$(IMAGE/sysupgrade.bin) | moxa-encode-fw
+endef
+TARGET_DEVICES += moxa_awk-1137c
+
 define Device/nec_wx1200cr
   DEVICE_VENDOR := NEC
   IMAGE/default := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-rootfs