ar71xx: add support for TP-LINK Archer C7 v4

TP-Link Archer C7 v4 is a dual-band AC1750 router, based on Qualcomm/Atheros
QCA9561+QCA9888.

Specification:

- 775/650/258 MHz (CPU/DDR/AHB)
- 128 MB of RAM (DDR2)
- 16 MB of FLASH (SPI NOR)
- 3T3R 2.4 GHz
- 3T3R 5 GHz
- 5x 10/100/1000 Mbps Ethernet
- 7x LED, 2x button
- UART header on PCB

Flash instruction:
1. Upload lede-ar71xx-generic-archer-c7-v4-squashfs-factory.bin via Web interface

Flash instruction using TFTP recovery:
1. Set PC to fixed ip address 192.168.0.66
2. Download lede-ar71xx-generic-archer-c7-v4-squashfs-factory.bin
and rename it to ArcherC7v4_tp_recovery.bin
3. Start a tftp server with the file tp_recovery.bin in its root directory
4. Turn off the router
5. Press and hold Reset button
6. Turn on router with the reset button pressed and wait ~15 seconds
7. Release the reset button and after a short time
the firmware should be transferred from the tftp server
8. Wait ~30 second to complete recovery.

Flash instruction under U-Boot, using UART:

1. tftp 0x81000000 lede-ar71xx-...-sysupgrade.bin
2. erase 0x9f040000 +$filesize
3. cp.b $fileaddr 0x9f040000 $filesize
4. reset

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 46 insertions, 0 deletions

diff --git a/tools/firmware-utils/src/tplink-safeloader.c b/tools/firmware-utils/src/tplink-safeloader.c
index dceba75da5..219d1985ac 100644
--- a/tools/firmware-utils/src/tplink-safeloader.c
+++ b/tools/firmware-utils/src/tplink-safeloader.c
@@ -485,6 +485,49 @@ static struct device_info boards[] = {
 		.last_sysupgrade_partition = "file-system"
 	},
 
+	/** Firmware layout for the C7 */
+	{
+		.id = "ARCHER-C7-V4",
+		.support_list =
+			"SupportList:\n"
+			"{product_name:Archer C7,product_ver:4.0.0,special_id:45550000}\n"
+			"{product_name:Archer C7,product_ver:4.0.0,special_id:55530000}\n"
+			"{product_name:Archer C7,product_ver:4.0.0,special_id:43410000}\n",
+		.support_trail = '\x00',
+		.soft_ver = "soft_ver:1.0.0\n",
+
+		/**
+		    We use a bigger os-image partition than the stock images (and thus
+		    smaller file-system), as our kernel doesn't fit in the stock firmware's
+		    1MB os-image.
+		*/
+		.partitions = {
+			{"factory-boot", 0x00000, 0x20000},
+			{"fs-uboot", 0x20000, 0x20000},
+			{"os-image", 0x40000, 0x180000},	/* Stock: base 0x40000 size 0x120000 */
+			{"file-system", 0x1c0000, 0xd40000},	/* Stock: base 0x160000 size 0xda0000 */
+			{"default-mac", 0xf00000, 0x00200},
+			{"pin", 0xf00200, 0x00200},
+			{"device-id", 0xf00400, 0x00100},
+			{"product-info", 0xf00500, 0x0fb00},
+			{"soft-version", 0xf10000, 0x00100},
+			{"extra-para", 0xf11000, 0x01000},
+			{"support-list", 0xf12000, 0x0a000},
+			{"profile", 0xf1c000, 0x04000},
+			{"default-config", 0xf20000, 0x10000},
+			{"user-config", 0xf30000, 0x40000},
+			{"qos-db", 0xf70000, 0x40000},
+			{"certificate", 0xfb0000, 0x10000},
+			{"partition-table", 0xfc0000, 0x10000},
+			{"log", 0xfd0000, 0x20000},
+			{"radio", 0xff0000, 0x10000},
+			{NULL, 0, 0}
+		},
+
+		.first_sysupgrade_partition = "os-image",
+		.last_sysupgrade_partition = "file-system",
+	},
+
 	/** Firmware layout for the C9 */
 	{
 		.id = "ARCHERC9",
@@ -1214,6 +1257,9 @@ static void build_image(const char *output,
 	if (strcasecmp(info->id, "ARCHER-C25-V1") == 0) {
 		const char mdat[11] = {0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00};
 		parts[5] = put_data("extra-para", mdat, 11);
+	} else if (strcasecmp(info->id, "ARCHER-C7-V4") == 0) {
+		const char mdat[11] = {0x01, 0x00, 0x00, 0x02, 0x00, 0x00, 0xca, 0x00, 0x01, 0x00, 0x00};
+		parts[5] = put_data("extra-para", mdat, 11);
 	}
 
 	size_t len;