ipq806x: add support for ASRock G10

The ASRock G10 is a 2.4/5 GHz band 11ac "Gaming" router,
based on Qualcomm IPQ8064.

Specifications:

SoC:	Qualcomm IPQ8064
CPU:	Dual-Core A15 @ (384 - 1,400 MHz, 2C2T)
DRAM:	512 MiB (~467 MiB available)
NAND:	128 MB (Micron MT29F1G08ABBEAH4)
WLAN0:	4T4R 5 GHz Wlan (QCA9980)
WLAN1:	4T4R 2.4 GHz Wlan (QCA9980)
ETH:    5x 10/100/1000 Mbps Ethernet (QCA8337)
INPUT:  Reset Button, WPS 2.4G and WPS 5G Button
LEDS:   1 multicolor status LED
USB:    2x USB 3.0 Type-A
POWER:  12VDC/3A AC Adapter + dedicated Power Switch
UART:   Setting is 115200-8-N-1. 1x4 .1" unpopulated header
	on the PCB (J6 - very tiny silkscreen next to TX).
        Pinout: 1. 3v3 (Square - best skipped!), 2. RX, 3. GND, 4. TX

WARNING: The serial port needs a TTL/RS-232 3.3v level converter!
	 (Depending on the serial adapter RX and TX might need to
	  be swapped).

Note about the IR-Remote:
There's a 8-Bit MCU (SONIX SN8F25E21SG) which is controlling the
IR-Remote and is fed by the IR-Photodiode. The SoC can talk to
the device via I2C. The vendor's GPL archive comes with the source
of the interface driver for this as a (character driver), the main
control software is however a blob.

Installation Instructions:
 1. Download factory image to disk
 2. Apply factory image via stock web-gui

Back to stock:
 1. Login to router via ssh
 2. run "asrock_g10_back_to_factory" script from /sbin

Notes:
 - If something goes wrong durring sysupgrade, router will go back to
   factory image.
 - Asrock G10 uses partition layout from smem. So partition layout can
   be normal or alternate.
 - 900-arm-add-cmdline-override.patch was copied from 102-powerpc-add-cmdline-override.patch
   from powerpc target.

Knowledge about BOOTCONFIG partition was based on user "jmomo" post from old
OpenWrt forum (Post #50):
https://forum.archive.openwrt.org/viewtopic.php?id=65956&p=2

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[bump to 5.4, add factory image, fix sysupgrade, convert partition
layout to smem, remove ipq-wifi-asrock-g10 and use ART, minor fixes]
Co-Authored-by: Pawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Tested-by: Lukasz Ostapiuk <palibrzuch@gmail.com>

2 files changed, 59 insertions, 0 deletions

diff --git a/target/linux/ipq806x/base-files/lib/upgrade/asrock.sh b/target/linux/ipq806x/base-files/lib/upgrade/asrock.sh
new file mode 100644
index 0000000000..71cac3faac
--- /dev/null
+++ b/target/linux/ipq806x/base-files/lib/upgrade/asrock.sh
@@ -0,0 +1,55 @@
+. /lib/functions.sh
+
+
+asrock_bootconfig_mangle() {
+	local mtdnum="$( find_mtd_index 0:BOOTCONFIG )"
+
+	if [ -z "$mtdnum" ]; then
+		echo "cannot find bootconfig mtd partition"
+		return 1
+	fi
+	dd if=/dev/mtd$mtdnum of=/tmp/mtd$mtdnum bs=1k
+
+	local partition_byte="$(dd if=/tmp/mtd$mtdnum bs=1 skip=52 count=1)"
+	local upgrade_byte="$(dd if=/tmp/mtd$mtdnum bs=1 skip=4 count=1)"
+
+	if [ $1 = "bootcheck" ]; then
+		if [ ! -s $upgrade_byte ]; then
+			dd if=/dev/mtd$mtdnum of=/tmp/mtd$mtdnum bs=1k
+			printf '\x00' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=4
+			printf '\x00' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=56
+		else
+			return 1
+		fi
+	elif [ $1 = "sysupgrade" ]; then
+		printf '\x01' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=4
+		printf '\x01' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=56
+	fi
+
+	if [ -s $partition_byte ]; then
+		printf '\x01' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=52
+	else
+		printf '\x00' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=52
+	fi
+
+	mtd write /tmp/mtd$mtdnum /dev/mtd$mtdnum
+	return 0
+}
+
+asrock_upgrade_prepare() {
+	local ubidev="$( nand_find_ubi ubi )"
+
+	#Set upgrade flag. If something goes wrong, router will boot with
+	#factory firmware.
+	asrock_bootconfig_mangle 'sysupgrade'
+
+	if [ $? -ne 0 ]; then
+		echo "cannot find bootconfig mtd partition"
+		exit 1
+	fi
+
+	# Just delete these partitions if present and use
+	# OpenWrt's standard names for those.
+	ubirmvol /dev/$ubidev -N ubi_rootfs &> /dev/null || true
+	ubirmvol /dev/$ubidev -N ubi_rootfs_data &> /dev/null || true
+}
diff --git a/target/linux/ipq806x/base-files/lib/upgrade/platform.sh b/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
index f61e8ee878..f5d6c5d55d 100644
--- a/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
@@ -10,6 +10,10 @@ platform_check_image() {
 
 platform_do_upgrade() {
 	case "$(board_name)" in
+	asrock,g10)
+		asrock_upgrade_prepare
+		nand_do_upgrade "$1"
+		;;
 	buffalo,wxr-2533dhp)
 		buffalo_upgrade_prepare_ubi
 		CI_ROOTPART="ubi_rootfs"