ramips: add support for TP-Link Archer A6 v3

The patch adds support for the TP-Link Archer A6 v3
The router is sold in US and India with FCC ID TE7A6V3

Specification
-------------
MediaTek MT7621 SOC
RAM:         128MB DDR3
SPI Flash:   W25Q128 (16MB)
Ethernet:    MT7530 5x 1000Base-T
WiFi 5GHz:   Mediatek MT7613BE
WiFi 2.4GHz: Mediatek MT7603E
UART/Serial: 115200 8n1

Device Configuration & Serial Port Pins
---------------------------------------
ETH Ports:    LAN4 LAN3 LAN2 LAN1 WAN
             _______________________
             |                     |
Serial Pins: |   VCC GND TXD RXD   |
             |_____________________|

LEDs:         Power Wifi2G Wifi5G LAN WAN

Build Output
------------
The build will generate following set of files
[1] openwrt-ramips-mt7621-tplink_archer-a6-v3-initramfs-kernel.bin
[2] openwrt-ramips-mt7621-tplink_archer-a6-v3-squashfs-factory.bin
[3] openwrt-ramips-mt7621-tplink_archer-a6-v3-squashfs-sysupgrade.bin

How to Use - Flashing from TP-Link Web Interface
------------------------------------------------
* Go to "Advanced/System Tools/Firmware Update".
* Click "Browse" and upload the OpenWrt factory image: factory.bin[2]
* Click the "Upgrade" button, and select "Yes" when prompted.

TFTP Booting
------------
Setup a TFTP boot server with address 192.168.0.5.
While starting U-boot press '4' key to stop autoboot.
Copy the initramfs-kernel.bin[1] to TFTP server folder, rename as test.bin
From u-boot command prompt run tftpboot followed by bootm.

Recovery
--------
Archer A6 V3 has recovery page activated if SPI booting from flash fails.
Recovery page can be activated from serial console only.
Press 'x' while u-boot is starting
Note: TFTP boot can be activated only from u-boot serial console.
Device recovery address: 192.168.0.1

Thanks to: Frankis for Randmon MAC address fix.

Signed-off-by: Vinay Patil <post2vinay@gmail.com>
[remove superfluous factory image definition, whitespacing]
Signed-off-by: David Bauer <mail@david-bauer.net>

1 files changed, 39 insertions, 1 deletions

diff --git a/tools/firmware-utils/src/tplink-safeloader.c b/tools/firmware-utils/src/tplink-safeloader.c
index 8a47e6a58f..ac83b686d8 100644
--- a/tools/firmware-utils/src/tplink-safeloader.c
+++ b/tools/firmware-utils/src/tplink-safeloader.c
@@ -1061,7 +1061,44 @@ static struct device_info boards[] = {
 		.first_sysupgrade_partition = "os-image",
 		.last_sysupgrade_partition = "file-system",
 	},
+	/** Firmware layout for the Archer A6 v3  */
+	{
+		.id     = "ARCHER-A6-V3",
+		.vendor = "",
+		.support_list =
+			"SupportList:\n"
+			"{product_name:Archer A6,product_ver:3.0.0,special_id:55530000}\n"
+			"{product_name:Archer A6,product_ver:3.0.0,special_id:54570000}\n",
+		.part_trail = 0x00,
+		.soft_ver = "soft_ver:1.0.5\n",
 
+		.partitions = {
+			{"fs-uboot", 0x00000, 0x40000},
+			{"firmware", 0x40000, 0xf60000},
+			{"default-mac", 0xfa0000, 0x00200},
+			{"pin", 0xfa0200, 0x00100},
+			{"device-id", 0xfa0300, 0x00100},
+			{"product-info", 0xfa0400, 0x0fc00},
+			{"default-config", 0xfb0000, 0x08000},
+			{"ap-def-config", 0xfb8000, 0x08000},
+			{"user-config", 0xfc0000, 0x0a000},
+			{"ag-config", 0xfca000, 0x04000},
+			{"certificate", 0xfce000, 0x02000},
+			{"ap-config", 0xfd0000, 0x06000},
+			{"router-config", 0xfd6000, 0x06000},
+			{"favicon", 0xfdc000, 0x02000},
+			{"logo", 0xfde000, 0x02000},
+			{"partition-table", 0xfe0000, 0x00800},
+			{"soft-version", 0xfe0800, 0x00100},
+			{"support-list", 0xfe0900, 0x00200},
+			{"profile", 0xfe0b00, 0x03000},
+			{"extra-para", 0xfe3b00, 0x00100},
+			{"radio", 0xff0000, 0x10000},
+			{NULL, 0, 0}
+		},
+		.first_sysupgrade_partition = "os-image",
+		.last_sysupgrade_partition = "file-system",
+	},
 	/** Firmware layout for the C60v1 */
 	{
 		.id     = "ARCHER-C60-V1",
@@ -2826,7 +2863,8 @@ static void build_image(const char *output,
 	parts[4] = read_file("file-system", rootfs_image, add_jffs2_eof, file_system_partition);
 
 	/* Some devices need the extra-para partition to accept the firmware */
-	if (strcasecmp(info->id, "ARCHER-A7-V5") == 0 ||
+	if (strcasecmp(info->id, "ARCHER-A6-V3") == 0 ||
+	    strcasecmp(info->id, "ARCHER-A7-V5") == 0 ||
 	    strcasecmp(info->id, "ARCHER-C2-V3") == 0 ||
 	    strcasecmp(info->id, "ARCHER-C7-V4") == 0 ||
 	    strcasecmp(info->id, "ARCHER-C7-V5") == 0 ||