[RFC PATCH 7/7] ath79: support for TP-Link EAP225 v3

[Sander Vanheule]

TP-Link EAP225 v3 is an AC1350 (802.11ac Wave-2) ceiling mount access
point.

Device specifications:
* SoC: QCA9563 @ 775MHz
* RAM: 128MiB DDR2
* Flash: 16MiB SPI-NOR
* Wireless 2.4GHz (SoC): b/g/n, 3x3
* Wireless 5Ghz (QCA9886): a/n/ac, 2x2 MU-MINO
* Ethernet (AR8033): 1× 1GbE, 803.2at PoE

Flashing instructions:
* ssh into target device and run `cliclientd stopcs`
* Upgrade with factory image via web interface

Debricking:
* Serial port can be soldered on PCB J3 (1: TXD, 2: RXD, 3: GND, 4: VCC)
    * Bridge unpopulated resistors R225 (TXD) and R237 (RXD).
      Do NOT bridge R230.
    * Use 3.3V, 115200 baud, 8n1
* Interrupt bootloader with by holding CTRL+B during boot
* tftp initramfs to flash via Luci web-interface

MAC addresses:
MAC address (as on device label) is stored in device info partition at
an offset of 8 bytes. ath9k device has same address as ethernet, ath10k
uses address incremented by 1.
>From OEM boot log:

    Using interface ath0 with hwaddr b0:...:3e and ssid "..."
    Using interface ath10 with hwaddr b0:...:3f and ssid "..."

Tested by forum user blinkstar88

Signed-off-by: Sander Vanheule <sander at svanheule.net>
---
 .../ath79/dts/qca9563_tplink_eap225-v3.dts    | 21 ++++++++++++++
 .../generic/base-files/etc/board.d/02_network |  1 +
 .../etc/hotplug.d/firmware/11-ath10k-caldata  |  1 +
 target/linux/ath79/image/generic-tp-link.mk   |  9 ++++++
 tools/firmware-utils/src/tplink-safeloader.c  | 28 +++++++++++++++++++
 5 files changed, 60 insertions(+)
 create mode 100644 target/linux/ath79/dts/qca9563_tplink_eap225-v3.dts

diff --git a/target/linux/ath79/dts/qca9563_tplink_eap225-v3.dts b/target/linux/ath79/dts/qca9563_tplink_eap225-v3.dts
new file mode 100644
index 0000000000..391494b8dc
--- /dev/null
+++ b/target/linux/ath79/dts/qca9563_tplink_eap225-v3.dts
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+#include "qca9563_tplink_eap2x5_1port.dtsi"
+
+/ {
+	compatible = "tplink,eap225-v3", "qca,qca9563";
+	model = "TP-Link EAP225 v3";
+};
+
+&led_status_green {
+	status = "okay";
+	gpios = <&gpio 7 GPIO_ACTIVE_HIGH>;
+};
+
+&led_status_amber {
+	status = "okay";
+	gpios = <&gpio 9 GPIO_ACTIVE_HIGH>;
+};
diff --git a/target/linux/ath79/generic/base-files/etc/board.d/02_network b/target/linux/ath79/generic/base-files/etc/board.d/02_network
index 9bcee6da0e..2b11c00abb 100755
--- a/target/linux/ath79/generic/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network
@@ -38,6 +38,7 @@ ath79_setup_interfaces()
 	pisen,wmb001n|\
 	pisen,wmm003n|\
 	siemens,ws-ap3610|\
+	tplink,eap225-v3|\
 	tplink,eap225od-v1|\
 	tplink,eap245-v1|\
 	tplink,cpe210-v2|\
diff --git a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index b964c302d5..a3992d02b8 100644
--- a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -194,6 +194,7 @@ case "$FIRMWARE" in
 		ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \
 			/lib/firmware/ath10k/QCA9888/hw2.0/board.bin
 		;;
+	tplink,eap225-v3|\
 	tplink,eap225od-v1)
 		caldata_extract "art" 0x5000 0x2f20
 		ath10k_patch_mac $(macaddr_add $(mtd_get_mac_binary info 0x8) +1)
diff --git a/target/linux/ath79/image/generic-tp-link.mk b/target/linux/ath79/image/generic-tp-link.mk
index 9ac24908fe..70d62f5287 100644
--- a/target/linux/ath79/image/generic-tp-link.mk
+++ b/target/linux/ath79/image/generic-tp-link.mk
@@ -372,6 +372,15 @@ define Device/tplink_eap2x5_1port
   IMAGE/factory.bin := append-rootfs | tplink-safeloader factory | pad-extra 128
 endef
 
+define Device/tplink_eap225-v3
+  $(Device/tplink_eap2x5_1port)
+  DEVICE_MODEL := EAP225
+  DEVICE_VARIANT := v3
+  TPLINK_BOARD_ID := EAP225-V3
+  DEVICE_PACKAGES := kmod-ath10k-ct ath10k-firmware-qca9888-ct
+endef
+TARGET_DEVICES += tplink_eap225-v3
+
 define Device/tplink_eap225od-v1
   $(Device/tplink_eap2x5_1port)
   DEVICE_MODEL := EAP225-Outdoor
diff --git a/tools/firmware-utils/src/tplink-safeloader.c b/tools/firmware-utils/src/tplink-safeloader.c
index e38729eb8a..c4b9dd7865 100644
--- a/tools/firmware-utils/src/tplink-safeloader.c
+++ b/tools/firmware-utils/src/tplink-safeloader.c
@@ -1291,6 +1291,34 @@ static struct device_info boards[] = {
 		.last_sysupgrade_partition = "file-system"
 	},
 
+	/** Firmware layout for the EAP225 v3 */
+	{
+		.id     = "EAP225-V3",
+		.support_list =
+			"SupportList:\r\n"
+			"EAP225(TP-Link|UN|AC1350-D):3.0\r\n",
+		.soft_ver = NULL,
+		.soft_ver_compat_level = 1,
+
+		.partitions = {
+			{"fs-uboot", 0x00000, 0x20000},
+			{"partition-table", 0x20000, 0x02000},
+			{"default-mac", 0x30000, 0x01000},
+			{"support-list", 0x31000, 0x00100},
+			{"product-info", 0x31100, 0x00400},
+			{"soft-version", 0x32000, 0x00100},
+			{"firmware", 0x40000, 0xd80000},
+			{"user-config", 0xdc0000, 0x30000},
+			{"mutil-log", 0xf30000, 0x80000},
+			{"oops", 0xfb0000, 0x40000},
+			{"radio", 0xff0000, 0x10000},
+			{NULL, 0, 0}
+		},
+
+		.first_sysupgrade_partition = "os-image",
+		.last_sysupgrade_partition = "file-system"
+	},
+
 	/** Firmware layout for the EAP225-Outdoor v1 */
 	{
 		.id     = "EAP225OD-V1",
-- 
2.26.2