ath79: add support for MikroTik RouterBOARD wAP G-5HacT2HnD

This commit adds support for the MikroTik RouterBOARD wAP G-5HacT2HnD
(wAP AC), a small weatherproof dual band, dual-radio 802.11ac
wireless AP with integrated omnidirectional anntennae and one
10/100/1000 Mbps Ethernet port.

See https://mikrotik.com/product/RBwAPG-5HacT2HnD for more info.

Specifications:
 - SoC: Qualcomm Atheros QCA9556
 - RAM: 64 MB
 - Storage: 16 MB NOR
 - Wireless:
   · Atheros AR9550 (SoC) 802.11b/g/n 2x2:2, 2 dBi antennae
   · Qualcomm QCA9880 802.11a/n/ac 3x3:3, 2 dBi antennae
 - Ethernet: Atheros AG71xx (SoC, AR8033), 1x 1000/100/10 port,
   passive PoE in

Working:
 - Board/system detection
 - Sysupgrade
 - Serial console
 - Ethernet
 - 2.4 GHz radio
 - 5 GHz radio and LED
 - Reset button

Not working/Unsupported:
 - 2.4 GHz LED
 - AP/CAP LED
 - ZT2046Q SPI temperature and voltage sensor

This adds the basic features for supporting MikroTik devices:
 - a common recipe for mikrotik images in common-mikrotik.mk
 - support for minor (MikroTik NOR) split firmware (only for
   generic subtarget so far)

Acknowledgments: Robert Marko <robimarko@gmail.com>
                 Andrew Cameron <apcameron@softhome.net>
                 Koen Vandeputte <koen.vandeputte@ncentric.com>
                 Chuanhong Guo <gch981213@gmail.com>

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
Co-developed-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

4 files changed, 31 insertions, 0 deletions

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 0bae9dc384..15f2e18e0c 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
@@ -21,6 +21,7 @@ ath79_setup_interfaces()
 	dlink,dir-505|\
 	engenius,ecb1750|\
 	glinet,gl-ar300m-lite|\
+	mikrotik,routerboard-wap-g-5hact2hnd|\
 	netgear,ex6400|\
 	netgear,ex7300|\
 	ocedo,koala|\
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 4158116256..7a813b0db1 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
@@ -3,6 +3,7 @@
 [ -e /lib/firmware/$FIRMWARE ] && exit 0
 
 . /lib/functions/caldata.sh
+. /lib/functions/mikrotik-caldata.sh
 
 board=$(board_name)
 
@@ -40,6 +41,10 @@ case "$FIRMWARE" in
 		caldata_extract "art" 0x1000 0x440
 		ath9k_patch_mac $(mtd_get_mac_ascii u-boot-env ethaddr)
 		;;
+	mikrotik,routerboard-wap-g-5hact2hnd)
+		mikrotik_caldata_extract "art" 0x1000 0x440
+		ath9k_patch_mac $(macaddr_add $(mtd_get_mac_binary art 0x10) +2)
+		;;
 	nec,wg800hp)
 		caldata_extract "art" 0x1000 0x440
 		ath9k_patch_mac $(mtd_get_mac_text board_data 0x680)
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 c24e062b5c..3be2d337b9 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
@@ -4,6 +4,7 @@
 
 . /lib/functions/caldata.sh
 . /lib/functions/k2t.sh
+. /lib/functions/mikrotik-caldata.sh
 
 board=$(board_name)
 
@@ -64,6 +65,9 @@ case "$FIRMWARE" in
 		caldata_extract "art" 0x5000 0x844
 		ath10k_patch_mac $(macaddr_add $(mtd_get_mac_binary art 0x0) +2)
 		;;
+	mikrotik,routerboard-wap-g-5hact2hnd)
+		mikrotik_caldata_extract "art" 0x5000 0x844
+		;;
 	nec,wg800hp)
 		caldata_extract "art" 0x5000 0x844
 		ath10k_patch_mac $(mtd_get_mac_text board_data 0x880)
diff --git a/target/linux/ath79/generic/base-files/lib/functions/mikrotik-caldata.sh b/target/linux/ath79/generic/base-files/lib/functions/mikrotik-caldata.sh
new file mode 100644
index 0000000000..9c4016ee5d
--- /dev/null
+++ b/target/linux/ath79/generic/base-files/lib/functions/mikrotik-caldata.sh
@@ -0,0 +1,21 @@
+# Copyright (C) 2019 Robert Marko <robimarko@gmail.com>
+# Copyright (C) 2019 Roger Pueyo Centelles <roger.pueyo@guifi.net>
+#
+# Helper function to extract MAC addresses and calibration data for MikroTik
+#
+
+mikrotik_caldata_extract() {
+	local part=$1
+	local offset=$(($2))
+	local count=$(($3))
+	local mtd
+	local erdfile="/lib/firmware/erd.bin"
+
+	mtd=$(find_mtd_chardev $part)
+	[ -n "$mtd" ] || caldata_die "no mtd device found for partition $part"
+
+	rbextract -e $mtd $erdfile
+
+	dd if=$erdfile of=/lib/firmware/$FIRMWARE iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
+		caldata_die "failed to extract calibration data from $mtd"
+}