ath79: add support for MikroTik RouterBOARD 922UAGS-5HPacD

This patch ports support for the MikroTik RouterBOARD 922UAGS-5HPacD
with a built-in 802.11ac High-Power radio (31dBm), which was already
available in the ar71xx target.

See https://mikrotik.com/product/RB922UAGS-5HPacD for more info.

Specifications:
- SoC: Qualcomm Atheros QCA9558 (720 MHz)
- RAM: 128 MB
- Storage: 128 MB NAND
- Wireless: external QCA9882 802.11a/ac 2x2:2
- Ethernet: 1x 1000/100/10 Mbps, integrated, via AR8031 PHY, passive PoE-in 24V
- SFP: 1x host
- USB: 1x 2.0 type A
- PCIe: 1x Mini slot (also contains USB 2.0 for 3G/LTE modems)
- SIM slot: 1x mini-SIM

Working:
- Board/system detection
- SPI and NAND storage
- PCIe
- USB type A host
- Wireless
- Ethernet
- LEDs (user, phy0)
- Reset button
- Sysupgrade to/from ar71xx

Not supported:
- RSSI LEDs
- SFP cage

Installation methods:
- Sysupgrade from ar71xx (it is advisable to use the -n option to
wipe any previous settings), or
- Boot the initramfs image via TFTP and then flash the sysupgrade
image using "sysupgrade -n"

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>

6 files changed, 44 insertions, 3 deletions

diff --git a/target/linux/ath79/nand/base-files/etc/board.d/02_network b/target/linux/ath79/nand/base-files/etc/board.d/02_network
index bd02a4b383..f42b1ea9c2 100755
--- a/target/linux/ath79/nand/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/nand/base-files/etc/board.d/02_network
@@ -8,7 +8,8 @@ ath79_setup_interfaces()
 	local board="$1"
 
 	case "$board" in
-	aerohive,hiveap-121)
+	aerohive,hiveap-121|\
+	mikrotik,routerboard-922uags-5hpacd)
 		ucidef_set_interface_lan "eth0"
 		;;
 	glinet,gl-ar750s-nor|\
diff --git a/target/linux/ath79/nand/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ath79/nand/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index 9305f061fe..1989332f81 100644
--- a/target/linux/ath79/nand/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ath79/nand/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -3,6 +3,7 @@
 [ -e /lib/firmware/$FIRMWARE ] && exit 0
 
 . /lib/functions/caldata.sh
+. /lib/functions/mikrotik-caldata.sh
 
 board=$(board_name)
 
@@ -20,6 +21,13 @@ case "$FIRMWARE" in
 		;;
 	esac
 	;;
+"ath10k/cal-pci-0000:01:00.0.bin")
+	case $board in
+	mikrotik,routerboard-922uags-5hpacd)
+		mikrotik_caldata_extract "art" 0x5000 0x844
+		;;
+	esac
+	;;
 *)
 	exit 1
 	;;
diff --git a/target/linux/ath79/nand/base-files/etc/uci-defaults/04_led_migration b/target/linux/ath79/nand/base-files/etc/uci-defaults/04_led_migration
new file mode 100644
index 0000000000..1a7b371a99
--- /dev/null
+++ b/target/linux/ath79/nand/base-files/etc/uci-defaults/04_led_migration
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+. /lib/functions.sh
+. /lib/functions/migrations.sh
+
+board=$(board_name)
+boardonly="${board##*,}"
+
+case "$board" in
+mikrotik,*)
+	migrate_leds "^rb:=mikrotik:"
+	;;
+esac
+
+migrations_apply system
+
+exit 0
diff --git a/target/linux/ath79/nand/base-files/lib/upgrade/platform.sh b/target/linux/ath79/nand/base-files/lib/upgrade/platform.sh
index 15d88a361e..8d6b639b40 100644
--- a/target/linux/ath79/nand/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ath79/nand/base-files/lib/upgrade/platform.sh
@@ -7,13 +7,27 @@ platform_check_image() {
 	return 0
 }
 
-RAMFS_COPY_BIN='fw_printenv fw_setenv'
+RAMFS_COPY_BIN='fw_printenv fw_setenv nandwrite'
 RAMFS_COPY_DATA='/etc/fw_env.config /var/lock/fw_printenv.lock'
 
+platform_do_upgrade_mikrotik_nand() {
+	CI_KERNPART=none
+	local fw_mtd=$(find_mtd_part kernel)
+	fw_mtd="${fw_mtd/block/}"
+	[ -n "$fw_mtd" ] || return
+	mtd erase kernel
+	tar xf "$1" sysupgrade-routerboard/kernel -O | nandwrite -o "$fw_mtd" -
+
+	nand_do_upgrade "$1"
+}
+
 platform_do_upgrade() {
 	local board=$(board_name)
 
 	case "$board" in
+	mikrotik,routerboard-922uags-5hpacd)
+		platform_do_upgrade_mikrotik_nand "$1"
+		;;
 	glinet,gl-ar300m-nand|\
 	glinet,gl-ar300m-nor)
 		glinet_nand_nor_do_upgrade "$1"
diff --git a/target/linux/ath79/nand/config-default b/target/linux/ath79/nand/config-default
index 4742ad52d0..b03f977a07 100644
--- a/target/linux/ath79/nand/config-default
+++ b/target/linux/ath79/nand/config-default
@@ -3,6 +3,7 @@ CONFIG_MTD_NAND_AR934X=y
 CONFIG_MTD_NAND_CORE=y
 CONFIG_MTD_NAND_ECC=y
 CONFIG_MTD_SPI_NAND=y
+CONFIG_MTD_SPLIT_MINOR_FW=y
 CONFIG_MTD_UBI=y
 CONFIG_MTD_UBI_BLOCK=y
 CONFIG_MTD_UBI_WL_THRESHOLD=4096
diff --git a/target/linux/ath79/nand/target.mk b/target/linux/ath79/nand/target.mk
index c565c9b2b8..fd5216b0eb 100644
--- a/target/linux/ath79/nand/target.mk
+++ b/target/linux/ath79/nand/target.mk
@@ -1,6 +1,6 @@
 BOARDNAME := Generic devices with NAND flash
 
-FEATURES += squashfs nand
+FEATURES += squashfs nand minor
 
 DEFAULT_PACKAGES += wpad-basic