ath79: Add support for OpenMesh OM5P-AC v2

Device specifications:
======================

* Qualcomm/Atheros QCA9558 ver 1 rev 0
* 720/600/200 MHz (CPU/DDR/AHB)
* 128 MB of RAM
* 16 MB of SPI NOR flash
  - 2x 7 MB available; but one of the 7 MB regions is the recovery image
* 2T2R 2.4 GHz Wi-Fi (11n)
* 2T2R 5 GHz Wi-Fi (11ac)
* 4x GPIO-LEDs (3x wifi, 1x power)
* 1x GPIO-button (reset)
* external h/w watchdog (enabled by default))
* TTL pins are on board (arrow points to VCC, then follows: GND, TX, RX)
* TI tmp423 (package kmod-hwmon-tmp421) for temperature monitoring
* 2x ethernet
  - eth0
    + AR8035 ethernet PHY (RGMII)
    + 10/100/1000 Mbps Ethernet
    + 802.3af POE
    + used as LAN interface
  - eth1
    + AR8031 ethernet PHY (RGMII)
    + 10/100/1000 Mbps Ethernet
    + 18-24V passive POE (mode B)
    + used as WAN interface
* 12-24V 1A DC
* internal antennas

This device support is based on the partially working stub from commit
53c474abbdfe ("ath79: add new OF only target for QCA MIPS silicon").

Flashing instructions:
======================

Various methods can be used to install the actual image on the flash.
Two easy ones are:

ap51-flash
----------

The tool ap51-flash (https://github.com/ap51-flash/ap51-flash) should be
used to transfer the image to the u-boot when the device boots up.

initramfs from TFTP
-------------------

The serial console must be used to access the u-boot shell during bootup.
It can then be used to first boot up the initramfs image from a TFTP server
(here with the IP 192.168.1.21):

   setenv serverip 192.168.1.21
   setenv ipaddr 192.168.1.1
   tftpboot 0c00000 <filename-of-initramfs-kernel>.bin && bootm $fileaddr

The actual sysupgrade image can then be transferred (on the LAN port) to the
device via

  scp <filename-of-squashfs-sysupgrade>.bin root@192.168.1.1:/tmp/

On the device, the sysupgrade must then be started using

  sysupgrade -n /tmp/<filename-of-squashfs-sysupgrade>.bin

Signed-off-by: Sven Eckelmann <sven@narfation.org>

2 files changed, 3 insertions, 5 deletions

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 6da323facc..109b33795a 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
@@ -105,12 +105,9 @@ case "$FIRMWARE" in
 	openmesh,a40|\
 	openmesh,a60|\
 	openmesh,mr1750-v1|\
-	openmesh,mr1750-v2)
-		caldata_extract "ART" 0x5000 0x844
-		ath10k_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) 16)
-		;;
+	openmesh,mr1750-v2|\
 	openmesh,om5p-ac-v2)
-		caldata_extract "art" 0x5000 0x844
+		caldata_extract "ART" 0x5000 0x844
 		ath10k_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) 16)
 		;;
 	qihoo,c301)
diff --git a/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh b/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
index 3d953d7982..13b6ec9d99 100644
--- a/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ath79/generic/base-files/lib/upgrade/platform.sh
@@ -82,6 +82,7 @@ platform_do_upgrade() {
 	openmesh,om2p-lc|\
 	openmesh,om5p|\
 	openmesh,om5p-ac-v1|\
+	openmesh,om5p-ac-v2|\
 	openmesh,om5p-an)
 		PART_NAME="inactive"
 		platform_do_upgrade_openmesh "$1"