imx: add Aqara Gateway ZHWG11LM support

Aqara ZHWG11LM is a is a wall-mounted zigbee-to-internet gateway.
It is almost a twin of Xiaomi DGNWG05LM with another wifi chip.

Device specifications:
* SoC: Freescale iMX6ULL
* RAM: 256MiB
* Flash: 256MiB NAND flash
* Wireless 2.4GHz (RTL8189ES): b/g/n
* Zigbee Chip: NXP jn5169
* Ring of RGB leds
* BTN0 button
* Sound chip TFA9882 + speaker

Flashing instructions:

Flashing requires a flashing tool from NXP: https://github.com/NXPmicro/mfgtools

* solder wires and attach to system UART and usb connector
* stop uboot by pressing any key
* enter `bmode usb` to enable flashing over USB
* run `mfgtoolcli` on the main computer to write kernel, dtb and rootfs to the device

Known issues:
- RTL8189ES driver is buggy and may cause freezes and kernel panics
- Removing wdev disables the device until reboot. Patch is required.

Signed-off-by: Ivan Belokobylskiy <belokobylskij@gmail.com>

Author: devbis

package/boot/uboot-imx/Makefile

@@ -52,11 +52,12 @@ endef
 
 define U-Boot/xiaomi_dgnwg05lm
   NAME:=Xiaomi Lumi gateway
-  BUILD_DEVICES:=xiaomi_dgnwg05lm
+  BUILD_DEVICES:=aqara_zhwg11lm xiaomi_dgnwg05lm
 endef
 
 UBOOT_TARGETS := \
 	apalis_imx6 \
+	aqara_zhwg11lm \
 	mx6cuboxi \
 	pico-pi-imx7d \
 	wandboard \

package/boot/uboot-tools/uboot-envtools/files/imx_cortexa7

@@ -8,12 +8,13 @@ touch /etc/config/ubootenv
 board=$(board_name)
 
 case "$board" in
-technexion,imx7d-pico-pi)
-	ubootenv_add_uci_config "/dev/mmcblk2" "0xc0000" "0x2000" "0x2000"
-	;;
+aqara,zhwg11lm|\
 xiaomi,dgnwg05lm)
 	ubootenv_add_uci_config "/dev/mtd0" "0x2e0000" "0x20000" "0x20000" "4"
 	;;
+technexion,imx7d-pico-pi)
+	ubootenv_add_uci_config "/dev/mmcblk2" "0xc0000" "0x2000" "0x2000"
+	;;
 esac
 
 config_load ubootenv

target/linux/imx/cortexa7/base-files/lib/upgrade/platform.sh

@@ -15,14 +15,15 @@ platform_check_image() {
 	local board=$(board_name)
 
 	case "$board" in
-	technexion,imx7d-pico-pi)
-		return 0
-		;;
+	aqara,zhwg11lm |\
 	xiaomi,dgnwg05lm )
 		local platform_dir_name=$(echo $board | sed 's/,/_/g')
 		nand_do_platform_check $platform_dir_name $1
 		return $?;
 		;;
+	technexion,imx7d-pico-pi)
+		return 0
+		;;
 	esac
 
 	echo "Sysupgrade is not yet supported on $board."
@@ -33,12 +34,13 @@ platform_do_upgrade() {
 	local board=$(board_name)
 
 	case "$board" in
-	technexion,imx7d-pico-pi)
-		imx_sdcard_do_upgrade "$1"
-		;;
+	aqara,zhwg11lm |\
 	xiaomi,dgnwg05lm )
 		nand_do_upgrade "$1"
 		;;
+	technexion,imx7d-pico-pi)
+		imx_sdcard_do_upgrade "$1"
+		;;
 	esac
 }
 

target/linux/imx/image/cortexa7.mk

@@ -36,7 +36,7 @@ define Device/xiaomi_gateway-lumi
 	kmod-ledtrig-activity kmod-ledtrig-oneshot \
 	kmod-ledtrig-transient kmod-ledtrig-gpio \
 	kmod-i2c-core kmod-iio-core kmod-iio-vf610 \
-	kmod-sound-core kmod-sound-soc-imx \
+	kmod-hid kmod-sound-core kmod-sound-soc-imx \
 	kmod-sound-soc-tfa9882 alsa-utils \
 	wpa-supplicant ca-certificates hostapd \
 	nand-utils kobs-ng
@@ -62,3 +62,13 @@ define Device/xiaomi_dgnwg05lm
 	imx6ull-xiaomi-dgnwg05lm
 endef
 TARGET_DEVICES += xiaomi_dgnwg05lm
+
+define Device/aqara_zhwg11lm
+  $(Device/xiaomi_gateway-lumi)
+  DEVICE_VENDOR := Aqara
+  DEVICE_MODEL := ZHWG11LM
+  DEVICE_PACKAGES += kmod-rtl8189es-ol
+  DEVICE_DTS := \
+	imx6ull-aqara-zhwg11lm
+endef
+TARGET_DEVICES += aqara_zhwg11lm

target/linux/imx/patches-6.6/002-ARM-dts-imx-add-Aqara-Gateway-support.patch

@@ -0,0 +1,38 @@
+Aqara ZHWG11LM is a is a wall-mounted zigbee-to-internet gateway.
+Device specifications:
+* SoC: Freescale iMX6ULL
+* RAM: 256MiB
+* Flash: 256MiB NAND flash
+* Wireless 2.4GHz (RTL8189ES): b/g/n
+* Zigbee Chip: NXP jn5169
+* Ring of RGB leds
+* BTN0 button
+* Sound chip TFA9882 + speaker
+
+Tested on: Aqara Gateway ZHWG11LM
+
+Signed-off-by: Ivan Belokobylskiy <belokobylskij@gmail.com>
+
+--- a/arch/arm/boot/dts/nxp/imx/Makefile
++++ b/arch/arm/boot/dts/nxp/imx/Makefile
+@@ -316,6 +316,7 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
+ 	imx6ul-tx6ul-mainboard.dtb \
+ 	imx6ull-14x14-evk.dtb \
+ 	imx6ull-xiaomi-dgnwg05lm.dtb \
++	imx6ull-aqara-zhwg11lm.dtb \
+ 	imx6ull-colibri-aster.dtb \
+ 	imx6ull-colibri-emmc-aster.dtb \
+ 	imx6ull-colibri-emmc-eval-v3.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/nxp/imx/imx6ull-aqara-zhwg11lm.dts
+@@ -0,0 +1,10 @@
++// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
++
++/dts-v1/;
++
++#include "imx6ull-xiaomi-lumi.dtsi"
++
++/ {
++	model = "Aqara Gateway ZHWG11LM";
++	compatible = "aqara,zhwg11lm", "xiaomi,gateway-lumi", "fsl,imx6ull";
++};