ath79: add support for TP-Link EAP245-v3

TP-Link EAP245 v3 is an AC1750 (802.11ac Wave-2) ceiling mount access
point. UART access (for debricking) requires non-trivial soldering.

Specifications:
* SoC: QCA9563 (CPU/DDR/AHB @ 775/650/258 MHz)
* RAM: 128MiB
* Flash: 16MiB SPI-NOR
* Wireless 2.4GHz (SoC): b/g/n 3x3
* Wireless 5GHz (QCA9982): a/n/ac 3x3 with MU-MIMO
* Ethernet (QCA8337N switch): 2× 1GbE, ETH1 (802.3at PoE) and ETH2
* Green and amber status LEDs
* Reset switch (GPIO, available for failsafe)

Flashing instructions:
All recent firmware versions (latest is 2.20.0), can disable firmware
signature verification and use a padded firmware file to flash OpenWrt:
* ssh into target device and run `cliclientd stopcs`
* upload factory image via web interface

The stopcs-method is supported from firmware version 2.3.0. Earlier
versions need to be upgraded to a newer stock version before flashing
OpenWrt.

Factory images for these devices are RSA signed by TP-Link. While the
signature verification can be disabled, the factory image still needs to
have a (fake) 1024 bit signature added to pass file checks.

Debricking instructions:
You can recover using u-boot via the serial port:
* Serial port is available from J3 (1:TX, 2:RX, 3:GND, 4:3.3V)
* Bridge R237 to connect RX, located next to J3
* Bridge R225 to connect TX, located inside can on back-side of board
* Serial port is 115200 baud, 8n1, interrupt u-boot by holding ctrl+B
* Upload initramfs with tftp and upgrade via OpenWrt

Device mac addresses:
Stock firmware has the same mac address for 2.4GHz wireless and
ethernet, 5GHz is incremented by one. The base mac address is stored in
the 'default-mac' partition (offset 0x90000) at an offset of 8 bytes.
ART blobs contain no mac addresses.
From OEM ifconfig:
    ath0      Link encap:Ethernet  HWaddr 74:..:E2
    ath10     Link encap:Ethernet  HWaddr 74:..:E3
    br0       Link encap:Ethernet  HWaddr 74:..:E2
    eth0      Link encap:Ethernet  HWaddr 74:..:E2

Signed-off-by: Sander Vanheule <sander@svanheule.net>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>

1 files changed, 35 insertions, 0 deletions

diff --git a/tools/firmware-utils/src/tplink-safeloader.c b/tools/firmware-utils/src/tplink-safeloader.c
index 9005ffa487..dca68fa8a8 100644
--- a/tools/firmware-utils/src/tplink-safeloader.c
+++ b/tools/firmware-utils/src/tplink-safeloader.c
@@ -1298,6 +1298,38 @@ static struct device_info boards[] = {
 		.last_sysupgrade_partition = "file-system"
 	},
 
+	/** Firmware layout for the EAP245 v3 */
+	{
+		.id     = "EAP245-V3",
+		.support_list =
+			"SupportList:\r\n"
+			"EAP245(TP-Link|UN|AC1750-D):3.0\r\n",
+		.support_trail = '\xff',
+		.soft_ver = NULL,
+		.soft_ver_compat_level = 1,
+
+		/** Firmware partition with dynamic kernel/rootfs split */
+		.partitions = {
+			{"factroy-boot", 0x00000, 0x40000},
+			{"fs-uboot", 0x40000, 0x40000},
+			{"partition-table", 0x80000, 0x10000},
+			{"default-mac", 0x90000, 0x01000},
+			{"support-list", 0x91000, 0x00100},
+			{"product-info", 0x91100, 0x00400},
+			{"soft-version", 0x92000, 0x00100},
+			{"radio", 0xa0000, 0x10000},
+			{"extra-para", 0xb0000, 0x10000},
+			{"firmware", 0xc0000, 0xe40000},
+			{"config", 0xf00000, 0x30000},
+			{"mutil-log", 0xf30000, 0x80000},
+			{"oops", 0xfb0000, 0x40000},
+			{NULL, 0, 0}
+		},
+
+		.first_sysupgrade_partition = "os-image",
+		.last_sysupgrade_partition = "file-system"
+	},
+
 	/** Firmware layout for the TL-WA850RE v2 */
 	{
 		.id     = "TLWA850REV2",
@@ -2513,6 +2545,9 @@ static void build_image(const char *output,
 	} 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);
+	} else if (strcasecmp(info->id, "EAP245-V3") == 0) {
+		const char mdat[10] = {0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01};
+		parts[5] = put_data("extra-para", mdat, 10);
 	}
 
 	size_t len;