ath79: add support for TP-Link Archer C6 v2 (US) and A6 (US/TW)

This patch is based on #1689 and adds support for TP-Link Archer
C6 v2 (US) and A6 (US/TW).

The hardware is the same as EU and RU variant, except for GPIOs
(LEDS/Buttons), flash(chip/partitions) and UART being available
on the board.

- SOC: Qualcomm QCA9563 @ 775MHz
- Flash: GigaDevice GD25Q127CS1G (16MiB)
- RAM: Zentel A3R1GE40JBF (128 MiB DDR2)
- Ethernet: Qualcomm QCA8337N: 4x 1Gbps LAN + 1x 1Gbps WAN
- Wireless:
  - 2.4GHz (bgn) QCA9563 integrated (3x3)
  - 5GHz (ac) Qualcomm QCA9886 (2x2)
- Button: 1x power, 1x reset, 1x wps
- LED: 6x LEDs: power, wlan2g, wlan5g, lan, wan, wps
- UART: 115200, 8n1 (header available on board)

Known issues:
 - Wireless: 5GHz is known to have lower RSSI signal, it affects speed and range.

Flash instructions:

Upload openwrt-ath79-generic-tplink_archer-c6-v2-us-squashfs-factory.bin
via the router Web interface.

Flash instruction using tftp recovery:

1. Connect the computer to one of the LAN ports of the router
2. Set the computer IP to 192.168.0.66
3. Start a tftp server with the OpenWrt factory image in the
   tftp root directory renamed to ArcherA6v2_tp_recovery.bin.
4. Connect power cable to router, press and hold the
   reset button and turn the router on
5. Keep the reset button pressed until the WPS LED lights up
6. Wait ~150 seconds to complete flashing

Flash partitioning: I've followed #1689 for defining the partition layout
for this patch. The partition named as "tplink" @ 0xfd0000 is marked
as read only as it is where some config for stock firmware are stored.
On stock firmware those stock partitions starts at 0xfd9400 however
I had not been able to make it functional starting on the same address as
on stock fw, so it has been partitioned following #1689 and not the stock
partition layout for this specific partition. Due to that firmware/rootfs
partition lenght is 0xf80000 and not 0xf89400 as stock.

According to the GPL code, the EU/RU/JP variant does have different GPIO pins
assignment to LEDs and buttons, also the flash memory layout is different.

GPL Source Code: https://static.tp-link.com/resources/gpl/gpl-A6v2_us.tar.gz

Signed-off-by: Anderson Vulczak <andi@andi.com.br>
[wrap commit message, remove soft_ver change for C6 v2 EU, move LED aliases
to DTS files, remove dts-v1 in DTSI, node/property reorder in DTSI]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 38 insertions, 1 deletions

diff --git a/tools/firmware-utils/src/tplink-safeloader.c b/tools/firmware-utils/src/tplink-safeloader.c
index f8b8491326..c09ea347b2 100644
--- a/tools/firmware-utils/src/tplink-safeloader.c
+++ b/tools/firmware-utils/src/tplink-safeloader.c
@@ -881,7 +881,7 @@ static struct device_info boards[] = {
 		.last_sysupgrade_partition = "file-system",
 	},
 
-	/** Firmware layout for the C6v2 */
+	/** Firmware layout for the Archer C6 v2 (EU/RU/JP) */
 	{
 		.id	= "ARCHER-C6-V2",
 		.vendor	= "",
@@ -916,6 +916,40 @@ static struct device_info boards[] = {
 		.last_sysupgrade_partition = "file-system",
 	},
 
+	/** Firmware layout for the Archer C6 v2 (US) and A6 v2 (US/TW) */
+	{
+		.id     = "ARCHER-C6-V2-US",
+		.vendor = "",
+		.support_list =
+			"SupportList:\n"
+			"{product_name:Archer A6,product_ver:2.0.0,special_id:55530000}\n"
+			"{product_name:Archer A6,product_ver:2.0.0,special_id:54570000}\n"
+			"{product_name:Archer C6,product_ver:2.0.0,special_id:55530000}\n",
+		.support_trail = '\x00',
+		.soft_ver = "soft_ver:1.1.1\n",
+
+		.partitions = {
+			{"factory-boot", 0x00000, 0x20000},
+			{"default-mac", 0x20000, 0x00200},
+			{"pin", 0x20200, 0x00100},
+			{"product-info", 0x20300, 0x00200},
+			{"device-id", 0x20500, 0x0fb00},
+			{"fs-uboot", 0x30000, 0x20000},
+			{"firmware", 0x50000, 0xf89400},
+			{"soft-version", 0xfd9400, 0x00100},
+			{"extra-para", 0xfd9500, 0x00100},
+			{"support-list", 0xfd9600, 0x00200},
+			{"profile", 0xfd9800, 0x03000},
+			{"default-config", 0xfdc800, 0x03000},
+			{"partition-table", 0xfdf800, 0x00800},
+			{"user-config", 0xfe0000, 0x0c000},
+			{"certificate", 0xfec000, 0x04000},
+			{"radio", 0xff0000, 0x10000},
+			{NULL, 0, 0}
+		},
+		.first_sysupgrade_partition = "os-image",
+		.last_sysupgrade_partition = "file-system",
+	},
 
 	/** Firmware layout for the C60v1 */
 	{
@@ -2069,6 +2103,9 @@ static void build_image(const char *output,
 	} else if (strcasecmp(info->id, "ARCHER-C6-V2") == 0) {
 		const char mdat[11] = {0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00};
 		parts[5] = put_data("extra-para", mdat, 11);
+	} else if (strcasecmp(info->id, "ARCHER-C6-V2-US") == 0) {
+		const char mdat[11] = {0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00};
+		parts[5] = put_data("extra-para", mdat, 11);
 	}
 
 	size_t len;