[OpenWrt-Devel] [PATCH v4 3/4] ath79: add support for ubnt_bullet-m-ar7240 variant

[Russell Senior]

This adds support for the Ubiquiti Bullet M (AR7240).

Specifications:
- AR7240 SoC @ 400 MHz
- 32 MB RAM
- 8 MB SPI flash
- 1x 10/100 Mbps Ethernet, 24 Vdc PoE-in
- External antenna
- POWER/LAN green LEDs
- 4x RSSI LEDs (red, orange, green, green)
- UART (115200 8N1) on PCB

Flashing via WebUI:
  Upload the factory image via the stock firmware web UI.

  Attention: airOS firmware versions >= 5.6 have a new bootloader with
  an incompatible partition table!

  Please downgrade to <= 5.5 _before_ flashing OpenWrt!
  Refer to the device's Wiki page for further information.

Flashing via TFTP:
  Same procedure as other Ubiquiti M boards.

- Use a pointy tool (e.g., pen cap, paper clip) and keep the reset
  button on the device or on the PoE supply pressed
- Power on the device via PoE (keep reset button pressed)
- Keep pressing until LEDs flash alternatively LED1+LED3 =>
  LED2+LED4 => LED1+LED3, etc.
- Release reset button
- The device starts a TFTP server at 192.168.1.20
- Set a static IP on the computer (e.g., 192.168.1.21/24)
- Upload via tftp the factory image:
  $ tftp 192.168.1.20
  tftp> bin
  tftp> trace
  tftp> put openwrt-ath79-generic-xxxxx-ubnt_bullet-m-ar7240-squashfs-factory.bin

Signed-off-by: Russell Senior <russell at personaltelco.net>
---
 .../ath79/dts/ar7240_ubnt_bullet-m-ar7240.dts | 22 +++++++++++++++++++
 .../generic/base-files/etc/board.d/01_leds    |  1 +
 .../generic/base-files/etc/board.d/02_network |  1 +
 .../etc/hotplug.d/firmware/10-ath9k-eeprom    |  1 +
 target/linux/ath79/image/generic-ubnt.mk      | 10 +++++++++
 5 files changed, 35 insertions(+)
 create mode 100644 target/linux/ath79/dts/ar7240_ubnt_bullet-m-ar7240.dts

diff --git a/target/linux/ath79/dts/ar7240_ubnt_bullet-m-ar7240.dts b/target/linux/ath79/dts/ar7240_ubnt_bullet-m-ar7240.dts
new file mode 100644
index 0000000000..99bf971eec
--- /dev/null
+++ b/target/linux/ath79/dts/ar7240_ubnt_bullet-m-ar7240.dts
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/dts-v1/;
+
+#include "ar7240.dtsi"
+#include "ar724x_ubnt_xm.dtsi"
+#include "ar724x_ubnt_xm_outdoor.dtsi"
+
+/ {
+	compatible = "ubnt,bullet-m-ar7240", "ubnt,xm", "qca,ar7240";
+	model = "Ubiquiti Bullet M AR7240";
+};
+
+&eth0 {
+	fixed-link {
+		speed = <100>;
+		full-duplex;
+	};
+};
+
+&eth1 {
+	compatible = "syscon", "simple-mfd";
+};
diff --git a/target/linux/ath79/generic/base-files/etc/board.d/01_leds b/target/linux/ath79/generic/base-files/etc/board.d/01_leds
index cf9dfd2b0d..98cdd6b7d4 100755
--- a/target/linux/ath79/generic/base-files/etc/board.d/01_leds
+++ b/target/linux/ath79/generic/base-files/etc/board.d/01_leds
@@ -245,6 +245,7 @@ tplink,tl-wr842n-v2)
 trendnet,tew-823dru)
 	ucidef_set_led_netdev "wan" "WAN" "trendnet:green:planet" "eth0"
 	;;
+ubnt,bullet-m-ar7240|\
 ubnt,bullet-m-ar7241|\
 ubnt,bullet-m-xw|\
 ubnt,nanostation-loco-m|\
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 24ba524c73..f0d96a1273 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
@@ -41,6 +41,7 @@ ath79_setup_interfaces()
 	tplink,re450-v1|\
 	tplink,re450-v2|\
 	tplink,tl-wr902ac-v1|\
+	ubnt,bullet-m-ar7240|\
 	ubnt,bullet-m-ar7241|\
 	ubnt,bullet-m-xw|\
 	ubnt,lap-120|\
diff --git a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
index 225915ef3b..08d0e27acc 100644
--- a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
+++ b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
@@ -90,6 +90,7 @@ case "$FIRMWARE" in
 	tplink,tl-wr2543-v1|\
 	tplink,tl-wr842n-v1|\
 	ubnt,airrouter|\
+	ubnt,bullet-m-ar7240|\
 	ubnt,bullet-m-ar7241|\
 	ubnt,nanostation-loco-m|\
 	ubnt,nanostation-m|\
diff --git a/target/linux/ath79/image/generic-ubnt.mk b/target/linux/ath79/image/generic-ubnt.mk
index 9752319209..5808d8f424 100644
--- a/target/linux/ath79/image/generic-ubnt.mk
+++ b/target/linux/ath79/image/generic-ubnt.mk
@@ -113,6 +113,16 @@ define Device/ubnt_airrouter
 endef
 TARGET_DEVICES += ubnt_airrouter
 
+define Device/ubnt_bullet-m-ar7240
+  $(Device/ubnt-xm)
+  SOC := ar7240
+  DEVICE_MODEL := Bullet-M
+  DEVICE_VARIANT := XM (AR7240)
+  DEVICE_PACKAGES += rssileds
+  SUPPORTED_DEVICES += bullet-m-ar7240
+endef
+TARGET_DEVICES += ubnt_bullet-m-ar7240
+
 define Device/ubnt_bullet-m-ar7241
   $(Device/ubnt-xm)
   SOC := ar7241
-- 
2.25.1


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