From d80f34b07dc4c64d19d1408e382a2dd41656b7c2 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Fri, 22 Dec 2023 18:43:25 +0800
Subject: [PATCH] Update kernel build shell script to support igkboard-imx6ull

---
 kernel/patches/gen_patch.sh                                     |    1 
 kernel/build.sh                                                 |   37 
 kernel/patches/igkboard-imx6ull/linux-imx-lf-6.1.36-2.1.0.patch | 1958 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 1,985 insertions(+), 11 deletions(-)

diff --git a/kernel/build.sh b/kernel/build.sh
index 55ee6c8..e4a2093 100755
--- a/kernel/build.sh
+++ b/kernel/build.sh
@@ -42,12 +42,17 @@
     export GIT_URL=`jq -r ".bsp.giturl" $CONF_FILE | tr 'A-Z' 'a-z'`
     export CROSS_COMPILE=`jq -r ".bsp.cortexAtool" $CONF_FILE | tr 'A-Z' 'a-z'`
 
+    export SRCS="linux-imx"
     export BRANCH=$BSP_VER
     export KER_PATH=$PRJ_PATH/linux-imx
 
     export JOBS=`cat /proc/cpuinfo | grep processor | wc -l`
-    export ARCH=arm64
-    export SRCS="linux-imx"
+
+    if [[ $BOARD =~ mx6ull ]] ; then
+        export ARCH=arm
+    else
+        export ARCH=arm64
+    fi
 }
 
 function build_kernel()
@@ -68,7 +73,7 @@
 
     cd $KER_PATH
 
-    if [ ! -s arch/arm64/configs/$defconfig -a -s $patch_file ] ; then
+    if [ ! -s arch/$ARCH/configs/$defconfig -a -s $patch_file ] ; then
         pr_warn "do patch for $KER_PATH now..."
         patch -p1 < $patch_file
     fi
@@ -88,13 +93,25 @@
 
     if [ -d $PRFX_PATH ] ; then
         rm -rf $PRFX_PATH/*
-    else
-        mkdir -p $PRFX_PATH
     fi
 
-    # Install image
-    cp arch/arm64/boot/Image $PRFX_PATH
-    cp arch/arm64/boot/dts/freescale/${BOARD}.dtb $PRFX_PATH
+    mkdir -p $PRFX_PATH/overlays
+
+    # Install system image and device tree binaries
+
+    if [[ $BOARD =~ 6ull ]] ; then
+        set -x
+        cp -f arch/${ARCH}/boot/zImage $PRFX_PATH
+        cp -f arch/${ARCH}/boot/dts/${BOARD}.dtb $PRFX_PATH
+        cp -f arch/${ARCH}/boot/dts/${BOARD}/*.dtbo $PRFX_PATH/overlays
+        set +x
+    else
+        set -x
+        cp -f arch/${ARCH}/boot/Image $PRFX_PATH
+        cp -f arch/${ARCH}/boot/dts/freescale/${BOARD}.dtb $PRFX_PATH
+        cp -f arch/${ARCH}/boot/dts/freescale/${BOARD}/*.dtbo $PRFX_PATH/overlays
+        set +x
+    fi
 
     # Install kernel modules
     make modules_install INSTALL_MOD_PATH=$PRFX_PATH INSTALL_MOD_STRIP=1
@@ -105,8 +122,8 @@
 
     if [[ -n "$INST_PATH" && -w $INST_PATH ]] ; then
         pr_info "install linux kernel to '$INST_PATH'"
-        cp $PRFX_PATH/Image $INST_PATH
-        cp $PRFX_PATH/${BOARD}.dtb $INST_PATH
+        cp -f $PRFX_PATH/*Image $INST_PATH
+        cp -f $PRFX_PATH/${BOARD}.dtb $INST_PATH
     fi
 }
 
diff --git a/kernel/patches/gen_patch.sh b/kernel/patches/gen_patch.sh
index 60dccda..37673b6 100755
--- a/kernel/patches/gen_patch.sh
+++ b/kernel/patches/gen_patch.sh
@@ -58,7 +58,6 @@
 
 if [ $# != 1 ] ; then
     pr_info "$0 usage example:"
-    pr_info "$0 uboot-imx/"
     pr_info "$0 linux-imx/"
     exit
 fi
diff --git a/kernel/patches/igkboard-imx6ull/linux-imx-lf-6.1.36-2.1.0.patch b/kernel/patches/igkboard-imx6ull/linux-imx-lf-6.1.36-2.1.0.patch
new file mode 100644
index 0000000..fffccc6
--- /dev/null
+++ b/kernel/patches/igkboard-imx6ull/linux-imx-lf-6.1.36-2.1.0.patch
@@ -0,0 +1,1958 @@
+diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
+index 30408b4b2..80faa210e 100644
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -1749,3 +1749,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
+ 	aspeed-bmc-vegman-n110.dtb \
+ 	aspeed-bmc-vegman-rx20.dtb \
+ 	aspeed-bmc-vegman-sx20.dtb
++
++DTC_FLAGS_igkboard-imx6ull := -@
++dtb-$(CONFIG_SOC_IMX6UL) += igkboard-imx6ull.dtb
++subdir-$(CONFIG_SOC_IMX6UL) += igkboard-imx6ull
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull.dts b/arch/arm/boot/dts/igkboard-imx6ull.dts
+new file mode 100644
+index 000000000..ef885fed2
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull.dts
+@@ -0,0 +1,604 @@
++/*
++ * Device Tree Source for LingYun IGKBoard-IMX6ULL(IoT Gateway Kit Board based on i.MX6ULL)
++ * Based on imx6ul-14x14-evk.dts/imx6ul-14x14-evk.dtsi
++ *
++ * Copyright (C) 2022 LingYun IoT System Studio.
++ * Author: Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++
++#include "imx6ull.dtsi"
++
++/ {
++    model = "LingYun IoT System Studio IoT Gateway Kits Board Based on i.MX6ULL";
++	compatible = "lingyun,igkboard-imx6ull", "fsl,imx6ull";
++
++	chosen {
++		stdout-path = &uart1;
++	};
++
++	memory@80000000 {
++		device_type = "memory";
++		reg = <0x80000000 0x20000000>;
++	};
++
++	reserved-memory {
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges;
++
++		linux,cma {
++			compatible = "shared-dma-pool";
++			reusable;
++			size = <0xa000000>;
++			linux,cma-default;
++		};
++	};
++
++	buzzer: pwm-buzzer {
++		compatible = "pwm-beeper";
++		pwms = <&pwm2 0 500000>;
++		status = "okay";
++	};
++
++    leds {
++		compatible = "gpio-leds";
++		pinctrl-names = "default";
++		pinctrl-0 = <&pinctrl_gpio_leds>;
++		status = "okay";
++
++		sysled {
++			lable = "sysled";
++			gpios = <&gpio4 16 GPIO_ACTIVE_HIGH>;
++			linux,default-trigger = "heartbeat";
++			default-state = "off";
++		};
++	};
++
++	keys {
++		compatible = "gpio-keys";
++		pinctrl-names = "default";
++		pinctrl-0 = <&pinctrl_gpio_keys>;
++		autorepeat;
++		status = "okay";
++
++		key_user {
++			lable = "key_user";
++			gpios = <&gpio4 14 GPIO_ACTIVE_LOW>;
++			linux,code = <KEY_ENTER>;
++		};
++	};
++
++	pxp_v4l2 {
++		compatible = "fsl,imx6ul-pxp-v4l2", "fsl,imx6sx-pxp-v4l2", "fsl,imx6sl-pxp-v4l2";
++		status = "okay";
++	};
++
++	reg_sd1_vmmc: regulator-sd1-vmmc {
++		compatible = "regulator-fixed";
++		regulator-name = "VSD_3V3";
++		regulator-min-microvolt = <3300000>;
++		regulator-max-microvolt = <3300000>;
++		gpio = <&gpio1 9 GPIO_ACTIVE_HIGH>;
++		off-on-delay-us = <20000>;
++		enable-active-high;
++	};
++
++	reg_peri_3v3: regulator-peri-3v3 {
++		compatible = "regulator-fixed";
++		regulator-name = "VPERI_3V3";
++		regulator-min-microvolt = <3300000>;
++		regulator-max-microvolt = <3300000>;
++		/*
++		 * If you want to want to make this dynamic please
++		 * check schematics and test all affected peripherals:
++		 *
++		 * - sensors
++		 * - ethernet phy
++		 * - can
++		 * - bluetooth
++		 * - wm8960 audio codec
++		 * - ov5640 camera
++		 */
++		regulator-always-on;
++	};
++
++    reg_can_3v3: regulator@0 {
++		compatible = "regulator-fixed";
++		regulator-name = "can-3v3";
++		regulator-min-microvolt = <3300000>;
++		regulator-max-microvolt = <3300000>;
++		regulator-boot-on;
++		regulator-always-on;
++	};
++
++	reg_3p3v: 3p3v {
++		compatible = "regulator-fixed";
++		regulator-name = "3P3V";
++		regulator-min-microvolt = <3300000>;
++		regulator-max-microvolt = <3300000>;
++		regulator-boot-on;
++		regulator-always-on;
++	};
++
++	reg_1p8v: 1p8v {
++		compatible = "regulator-fixed";
++		regulator-name = "1P8V";
++		regulator-min-microvolt = <1800000>;
++		regulator-max-microvolt = <1800000>;
++		regulator-boot-on;
++		regulator-always-on;
++	};
++
++	backlight_lcd: backlight-lcd {
++		compatible = "pwm-backlight";
++		pwms = <&pwm1 0 5000000>;
++		brightness-levels = <0 4 8 16 32 64 128 255>;
++		default-brightness-level = <7>;
++		power-supply = <&reg_3p3v>;
++		status = "disabled";
++	};
++
++    /* 1-Wire sentinel for overlay */
++	w1: w1 {
++		compatible = "w1-gpio";
++		status = "disabled";
++	};
++
++    mqs: mqs {
++		#sound-dai-cells = <0>;
++		compatible = "fsl,imx6sx-mqs";
++		pinctrl-names = "default";
++		pinctrl-0 = <&pinctrl_mqs>;
++		clocks = <&clks IMX6UL_CLK_SAI1>;
++		clock-names = "mclk";
++		gpr = <&gpr>;
++		status = "okay";
++	};
++
++    sound-mqs {
++		compatible = "fsl,imx-audio-mqs";
++		model = "mqs-audio";
++		audio-cpu = <&sai1>;
++		audio-asrc = <&asrc>;
++		audio-codec = <&mqs>;
++		status = "okay";
++	};
++
++	/* LCD panel sentinel for overlay */
++	panel: panel {
++		status = "disabled";
++	};
++
++};
++
++/*+--------------+
++  | Misc Modules |
++  +--------------+*/
++
++&snvs_poweroff {
++	status = "okay";
++};
++
++&snvs_pwrkey {
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_uart1>;
++	status = "okay";
++};
++
++&pwm1 { /* backlight */
++	#pwm-cells = <2>;
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_pwm1>;
++	status = "okay";
++};
++
++&pwm2 {
++	#pwm-cells = <2>;
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_pwm2>;
++	status = "okay";
++};
++
++/*+---------------+
++  | Camera Module |
++  +---------------+*/
++
++&i2c2 {
++	clock-frequency = <100000>;
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_i2c2>;
++	status = "okay";
++
++    gt9xx@5d {
++		compatible = "goodix,gt9147";
++		reg = <0x5d>;
++		pinctrl-names = "default";
++		pinctrl-0 = <&pinctrl_ts_pins>;
++
++		irq-gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
++		reset-gpios = <&gpio5 3 GPIO_ACTIVE_HIGH>;
++		interrupt-parent = <&gpio5>;
++		interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
++
++		status = "disabled"; /* Enable in LCD overlay */
++	};
++
++	rtc@6f {
++		compatible = "isil,isl1208";
++		reg = <0x6f>;
++		status = "okay";
++	};
++
++	ov5640: ov5640@3c {
++		compatible = "ovti,ov5640";
++		reg = <0x3c>;
++		pinctrl-names = "default";
++		pinctrl-0 = <&pinctrl_csi1>;
++		clocks = <&clks IMX6UL_CLK_CSI>;
++		clock-names = "csi_mclk";
++
++		DOVDD-supply = <&reg_3p3v>;
++		VDD-supply = <&reg_1p8v>;
++		AVDD-supply = <&reg_3p3v>;
++		DVDD-supply = <&reg_3p3v>;
++
++		pwn-gpios = <&gpio5 6 GPIO_ACTIVE_HIGH>;
++		rst-gpios = <&gpio5 5 GPIO_ACTIVE_LOW>;
++		csi_id = <0>;
++		mclk = <24000000>;
++		mclk_source = <0>;
++		/* rotation = <180>; */
++		status = "disabled"; /* Enable in CAM overlay */
++		port {
++			ov5640_ep: endpoint {
++				remote-endpoint = <&csi1_ep>;
++			};
++		};
++	};
++
++};
++
++&csi {
++	status = "disabled";
++	port {
++		csi1_ep: endpoint {
++			remote-endpoint = <&ov5640_ep>;
++		};
++	};
++};
++
++/*+--------------+
++  | Audio Module |
++  +--------------+*/
++
++&clks {
++	assigned-clocks = <&clks IMX6UL_CLK_PLL4_AUDIO_DIV>;
++	//assigned-clock-rates = <786432000>; // 16bit,2Ch,48KHz
++	assigned-clock-rates = <722534400>; // 16bit,2Ch,44.1KHz
++};
++
++&sai1 {
++	assigned-clocks = <&clks IMX6UL_CLK_SAI1_SEL>, <&clks IMX6UL_CLK_SAI1>;
++	assigned-clock-parents = <&clks IMX6UL_CLK_PLL4_AUDIO_DIV>;
++	//assigned-clock-rates = <0>, <24576000>; // 16bit,2Ch,48KHz
++	assigned-clock-rates = <0>, <22579200>; // 16bit,2Ch,44.1KHz
++	fsl,sai-mclk-direction-output;
++	status = "okay";
++};
++
++/*+------------------+
++  | Ethernet Modules |
++  +------------------+*/
++
++&fec1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_enet1>;
++	phy-mode = "rmii";
++	phy-handle = <&ethphy0>;
++	phy-supply = <&reg_peri_3v3>;
++    phy-reset-gpios = <&gpio5 7 GPIO_ACTIVE_LOW>;
++	phy-reset-duration = <50>;
++	phy-reset-post-delay = <15>;
++	status = "okay";
++};
++
++&fec2 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_enet2>;
++	phy-mode = "rmii";
++	phy-handle = <&ethphy1>;
++	phy-supply = <&reg_peri_3v3>;
++    phy-reset-gpios = <&gpio5 4 GPIO_ACTIVE_LOW>;
++	phy-reset-duration = <50>;
++	phy-reset-post-delay = <15>;
++	status = "okay";
++
++	mdio {
++		#address-cells = <1>;
++		#size-cells = <0>;
++
++		ethphy0: ethernet-phy@0 {
++			compatible = "ethernet-phy-id0022.1560";
++			reg = <0>;
++			micrel,led-mode = <1>;
++			clocks = <&clks IMX6UL_CLK_ENET_REF>;
++			clock-names = "rmii-ref";
++
++		};
++
++		ethphy1: ethernet-phy@1 {
++			compatible = "ethernet-phy-id0022.1560";
++			reg = <1>;
++			micrel,led-mode = <1>;
++			clocks = <&clks IMX6UL_CLK_ENET2_REF>;
++			clock-names = "rmii-ref";
++		};
++	};
++};
++
++/*+---------------+
++  | USB interface |
++  +---------------+*/
++
++&usbotg1 {
++	dr_mode = "otg";
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_usb_otg1>;
++	status = "okay";
++};
++
++&usbotg2 {
++	dr_mode = "host";
++	disable-over-current;
++	status = "okay";
++};
++
++&usbphy1 {
++	fsl,tx-d-cal = <106>;
++};
++
++&usbphy2 {
++	fsl,tx-d-cal = <106>;
++};
++
++/*+------------------+
++  | USDCHC interface |
++  +------------------+*/
++
++&usdhc1 {
++	pinctrl-names = "default", "state_100mhz", "state_200mhz";
++	pinctrl-0 = <&pinctrl_usdhc1>;
++	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
++	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
++	cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
++	keep-power-in-suspend;
++	wakeup-source;
++	vmmc-supply = <&reg_sd1_vmmc>;
++	status = "okay";
++};
++
++&usdhc2 {
++    pinctrl-names = "default", "state_100mhz", "state_200mhz";
++	pinctrl-0 = <&pinctrl_usdhc2_8bit>;
++	pinctrl-1 = <&pinctrl_usdhc2_8bit_100mhz>;
++	pinctrl-2 = <&pinctrl_usdhc2_8bit_200mhz>;
++    non-removable;
++	bus-width = <8>;
++    keep-power-in-suspend;
++	wakeup-source;
++	status = "okay";
++};
++
++/*+----------------------+
++  | Basic pinctrl iomuxc |
++  +----------------------+*/
++
++&iomuxc {
++	pinctrl-names = "default";
++
++    pinctrl_gpio_leds: gpio-leds {
++		fsl,pins = <
++			MX6UL_PAD_NAND_DQS__GPIO4_IO16			0x17059 /* led run */
++		>;
++	};
++
++	pinctrl_gpio_keys: gpio-keys {
++		fsl,pins = <
++			MX6UL_PAD_NAND_CE1_B__GPIO4_IO14		0x17059 /* gpio key */
++		>;
++	};
++
++	pinctrl_mqs: pinctrl-mqs-pins {
++		fsl,pins = <
++			MX6UL_PAD_JTAG_TDI__MQS_LEFT			0x11088 /* MQS Left  */
++			MX6UL_PAD_JTAG_TDO__MQS_RIGHT			0x11088 /* MQS Right */
++		>;
++	};
++
++	pinctrl_ts_pins: pinctrl-ts-pins {
++		fsl,pins = <
++			MX6UL_PAD_SNVS_TAMPER2__GPIO5_IO02		0x17059 /* TouchScreen IRQ */
++			MX6UL_PAD_SNVS_TAMPER3__GPIO5_IO03		0x17059 /* TouchScreen RST */
++		>;
++	};
++
++	pinctrl_csi1: csi1grp {
++		fsl,pins = <
++        	MX6UL_PAD_SNVS_TAMPER5__GPIO5_IO05		0x17059 /* CSI_RST */
++			MX6UL_PAD_SNVS_TAMPER6__GPIO5_IO06		0x17059 /* CSI_PWDN */
++			MX6UL_PAD_CSI_MCLK__CSI_MCLK		0x1b088
++			MX6UL_PAD_CSI_PIXCLK__CSI_PIXCLK	0x1b088
++			MX6UL_PAD_CSI_VSYNC__CSI_VSYNC		0x1b088
++			MX6UL_PAD_CSI_HSYNC__CSI_HSYNC		0x1b088
++			MX6UL_PAD_CSI_DATA00__CSI_DATA02	0x1b088
++			MX6UL_PAD_CSI_DATA01__CSI_DATA03	0x1b088
++			MX6UL_PAD_CSI_DATA02__CSI_DATA04	0x1b088
++			MX6UL_PAD_CSI_DATA03__CSI_DATA05	0x1b088
++			MX6UL_PAD_CSI_DATA04__CSI_DATA06	0x1b088
++			MX6UL_PAD_CSI_DATA05__CSI_DATA07	0x1b088
++			MX6UL_PAD_CSI_DATA06__CSI_DATA08	0x1b088
++			MX6UL_PAD_CSI_DATA07__CSI_DATA09	0x1b088
++		>;
++	};
++
++	pinctrl_enet1: enet1grp {
++		fsl,pins = <
++			MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN	0x1b0b0
++			MX6UL_PAD_ENET1_RX_ER__ENET1_RX_ER	0x1b0b0
++			MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00	0x1b0b0
++			MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01	0x1b0b0
++			MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN	0x1b0b0
++			MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00	0x1b0b0
++			MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01	0x1b0b0
++			MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1	0x4001b031
++            MX6UL_PAD_SNVS_TAMPER7__GPIO5_IO07		0x10B0
++		>;
++	};
++
++	pinctrl_enet2: enet2grp {
++		fsl,pins = <
++			MX6UL_PAD_GPIO1_IO07__ENET2_MDC		0x1b0b0
++			MX6UL_PAD_GPIO1_IO06__ENET2_MDIO	0x1b0b0
++			MX6UL_PAD_ENET2_RX_EN__ENET2_RX_EN	0x1b0b0
++			MX6UL_PAD_ENET2_RX_ER__ENET2_RX_ER	0x1b0b0
++			MX6UL_PAD_ENET2_RX_DATA0__ENET2_RDATA00	0x1b0b0
++			MX6UL_PAD_ENET2_RX_DATA1__ENET2_RDATA01	0x1b0b0
++			MX6UL_PAD_ENET2_TX_EN__ENET2_TX_EN	0x1b0b0
++			MX6UL_PAD_ENET2_TX_DATA0__ENET2_TDATA00	0x1b0b0
++			MX6UL_PAD_ENET2_TX_DATA1__ENET2_TDATA01	0x1b0b0
++			MX6UL_PAD_ENET2_TX_CLK__ENET2_REF_CLK2	0x4001b031
++            MX6UL_PAD_SNVS_TAMPER4__GPIO5_IO04		0x10B0
++		>;
++	};
++
++	pinctrl_i2c2: i2c2grp {
++		fsl,pins = <
++			MX6UL_PAD_UART5_TX_DATA__I2C2_SCL 0x4001b8b0
++			MX6UL_PAD_UART5_RX_DATA__I2C2_SDA 0x4001b8b0
++		>;
++	};
++
++	pinctrl_pwm1: pwm1grp {
++		fsl,pins = <
++			MX6UL_PAD_GPIO1_IO08__PWM1_OUT			0x110b0
++		>;
++	};
++
++    pinctrl_pwm2: pwm2grp {
++		fsl,pins = <
++			MX6UL_PAD_GPIO1_IO09__PWM2_OUT			0x110b0
++		>;
++	};
++
++	pinctrl_uart1: uart1grp {
++		fsl,pins = <
++			MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
++			MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX 0x1b0b1
++		>;
++	};
++
++	pinctrl_usb_otg1: usbotg1grp {
++		fsl,pins = <
++			MX6UL_PAD_GPIO1_IO00__ANATOP_OTG1_ID	0x17059
++		>;
++	};
++
++	pinctrl_usdhc1: usdhc1grp {
++		fsl,pins = <
++			MX6UL_PAD_SD1_CMD__USDHC1_CMD     	0x17059
++			MX6UL_PAD_SD1_CLK__USDHC1_CLK		0x10071
++			MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 	0x17059
++			MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 	0x17059
++			MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 	0x17059
++			MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 	0x17059
++			MX6UL_PAD_UART1_RTS_B__GPIO1_IO19       0x17059
++		>;
++	};
++
++	pinctrl_usdhc1_100mhz: usdhc1grp100mhz {
++		fsl,pins = <
++			MX6UL_PAD_SD1_CMD__USDHC1_CMD     0x170b9
++			MX6UL_PAD_SD1_CLK__USDHC1_CLK     0x100b9
++			MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170b9
++			MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170b9
++			MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170b9
++			MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170b9
++
++		>;
++	};
++
++	pinctrl_usdhc1_200mhz: usdhc1grp200mhz {
++		fsl,pins = <
++			MX6UL_PAD_SD1_CMD__USDHC1_CMD     0x170f9
++			MX6UL_PAD_SD1_CLK__USDHC1_CLK     0x100f9
++			MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x170f9
++			MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x170f9
++			MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x170f9
++			MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x170f9
++		>;
++	};
++
++	pinctrl_usdhc2: usdhc2grp {
++		fsl,pins = <
++			MX6UL_PAD_NAND_RE_B__USDHC2_CLK     0x17059
++			MX6UL_PAD_NAND_WE_B__USDHC2_CMD     0x17059
++			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0 0x17059
++			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1 0x17059
++			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2 0x17059
++			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3 0x17059
++		>;
++	};
++
++	pinctrl_usdhc2_8bit: usdhc2grp_8bit {
++		fsl,pins = <
++			MX6UL_PAD_NAND_RE_B__USDHC2_CLK     0x10069
++			MX6UL_PAD_NAND_WE_B__USDHC2_CMD     0x17059
++			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0 0x17059
++			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1 0x17059
++			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2 0x17059
++			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3 0x17059
++			MX6UL_PAD_NAND_DATA04__USDHC2_DATA4 0x17059
++			MX6UL_PAD_NAND_DATA05__USDHC2_DATA5 0x17059
++			MX6UL_PAD_NAND_DATA06__USDHC2_DATA6 0x17059
++			MX6UL_PAD_NAND_DATA07__USDHC2_DATA7 0x17059
++		>;
++	};
++
++	pinctrl_usdhc2_8bit_100mhz: usdhc2grp_8bit_100mhz {
++		fsl,pins = <
++			MX6UL_PAD_NAND_RE_B__USDHC2_CLK     0x100b9
++			MX6UL_PAD_NAND_WE_B__USDHC2_CMD     0x170b9
++			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0 0x170b9
++			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1 0x170b9
++			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2 0x170b9
++			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3 0x170b9
++			MX6UL_PAD_NAND_DATA04__USDHC2_DATA4 0x170b9
++			MX6UL_PAD_NAND_DATA05__USDHC2_DATA5 0x170b9
++			MX6UL_PAD_NAND_DATA06__USDHC2_DATA6 0x170b9
++			MX6UL_PAD_NAND_DATA07__USDHC2_DATA7 0x170b9
++		>;
++	};
++
++	pinctrl_usdhc2_8bit_200mhz: usdhc2grp_8bit_200mhz {
++		fsl,pins = <
++			MX6UL_PAD_NAND_RE_B__USDHC2_CLK     0x100f9
++			MX6UL_PAD_NAND_WE_B__USDHC2_CMD     0x170f9
++			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0 0x170f9
++			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1 0x170f9
++			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2 0x170f9
++			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3 0x170f9
++			MX6UL_PAD_NAND_DATA04__USDHC2_DATA4 0x170f9
++			MX6UL_PAD_NAND_DATA05__USDHC2_DATA5 0x170f9
++			MX6UL_PAD_NAND_DATA06__USDHC2_DATA6 0x170f9
++			MX6UL_PAD_NAND_DATA07__USDHC2_DATA7 0x170f9
++		>;
++	};	
++
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/Makefile b/arch/arm/boot/dts/igkboard-imx6ull/Makefile
+new file mode 100644
+index 000000000..563d3fe8d
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/Makefile
+@@ -0,0 +1,19 @@
++# SPDX-License-Identifier: GPL-2.0
++# required for overlay support
++
++DTC_FLAGS += -@
++dtb-y += can1.dtbo
++dtb-y += can2.dtbo
++dtb-y += i2c1.dtbo
++dtb-y += spi1.dtbo
++dtb-y += uart2.dtbo
++dtb-y += uart3.dtbo
++dtb-y += uart4.dtbo
++dtb-y += uart7.dtbo
++dtb-y += pwm7.dtbo
++dtb-y += pwm8.dtbo
++dtb-y += w1.dtbo
++dtb-y += lcd.dtbo
++dtb-y += cam.dtbo
++dtb-y += nbiot-4g.dtbo
++dtb-y += adc.dtbo
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/adc.dts b/arch/arm/boot/dts/igkboard-imx6ull/adc.dts
+new file mode 100644
+index 000000000..e06d67907
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/adc.dts
+@@ -0,0 +1,27 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, ADC interfaces */
++
++&adc1 {
++    pinctrl-names = "default";
++    pinctrl-0 = <&pinctrl_adc1>;
++    num-channels = <5>;
++    vref-supply = <&reg_peri_3v3>;
++    status = "okay";
++};
++
++&iomuxc {
++    pinctrl_adc1: adc1grp {
++        fsl,pins = <
++            MX6UL_PAD_GPIO1_IO01__GPIO1_IO01        0xb0 /* ADC1_1 --->TS_YN */
++            MX6UL_PAD_GPIO1_IO04__GPIO1_IO04        0xb0 /* ADC1_4 --->TS_XP */
++        >;
++    };
++};
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/cam.dts b/arch/arm/boot/dts/igkboard-imx6ull/cam.dts
+new file mode 100644
+index 000000000..d4435f0d1
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/cam.dts
+@@ -0,0 +1,24 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++/* MIPI-DSI2 camera overlay */
++
++&pxp { /* Pixel Pipeline (PXP) is a memory-to-memory graphics processing */
++	status = "okay";
++};
++
++&csi {
++	status = "okay";
++};
++
++&i2c2 {
++	ov5640@3c {
++		status = "okay";
++	};
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/can1.dts b/arch/arm/boot/dts/igkboard-imx6ull/can1.dts
+new file mode 100644
+index 000000000..fe57e00bb
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/can1.dts
+@@ -0,0 +1,28 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, CAN1 interfaces */
++
++&can1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_flexcan1>;
++	xceiver-supply = <&reg_can_3v3>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_flexcan1: flexcan1grp{
++		fsl,pins = <
++			MX6UL_PAD_UART3_RTS_B__FLEXCAN1_RX	0x1b020
++			MX6UL_PAD_UART3_CTS_B__FLEXCAN1_TX	0x1b020
++		>;
++	};	
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/can2.dts b/arch/arm/boot/dts/igkboard-imx6ull/can2.dts
+new file mode 100644
+index 000000000..7eada165a
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/can2.dts
+@@ -0,0 +1,28 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, CAN2 interfaces */
++
++&can2 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_flexcan2>;
++	xceiver-supply = <&reg_can_3v3>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_flexcan2: flexcan2grp{
++		fsl,pins = <
++			MX6UL_PAD_UART2_RTS_B__FLEXCAN2_RX	0x1b020
++			MX6UL_PAD_UART2_CTS_B__FLEXCAN2_TX	0x1b020
++		>;
++	};
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/i2c1.dts b/arch/arm/boot/dts/igkboard-imx6ull/i2c1.dts
+new file mode 100644
+index 000000000..ce99b9a18
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/i2c1.dts
+@@ -0,0 +1,28 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, I2C1 interfaces */
++
++&i2c1 {
++	clock-frequency = <100000>;
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_i2c1>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_i2c1: i2c1grp {
++		fsl,pins = <
++			MX6UL_PAD_GPIO1_IO02__I2C1_SCL	0x4001b8b0
++			MX6UL_PAD_GPIO1_IO03__I2C1_SDA	0x4001b8b0
++		>;
++	};	
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/lcd.dts b/arch/arm/boot/dts/igkboard-imx6ull/lcd.dts
+new file mode 100644
+index 000000000..ef1c479bf
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/lcd.dts
+@@ -0,0 +1,82 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/imx6ul-clock.h>
++#include "../imx6ul-pinfunc.h"
++
++/* LCD DRM display overlay */
++
++&backlight_lcd {
++	status = "okay";
++};
++
++&i2c2 {
++	gt9xx@5d {
++		status = "okay";
++	};
++};
++
++&lcdif {
++	assigned-clocks = <&clks IMX6UL_CLK_LCDIF_PRE_SEL>;
++	assigned-clock-parents = <&clks IMX6UL_CLK_PLL5_VIDEO_DIV>;
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_lcdif_dat &pinctrl_lcdif_ctrl>;
++	status = "okay";
++
++	port {
++		display_output: endpoint {
++			remote-endpoint = <&panel_input>;
++		};
++	};
++};
++
++&panel {
++	compatible = "lingyun,igkboard-imx6ull-panel", "panel-simple";
++	backlight = <&backlight_lcd>;
++	power-supply = <&reg_3p3v>;
++    status = "okay";
++
++    port {
++        panel_input: endpoint {
++            remote-endpoint = <&display_output>;
++        };
++    };
++};
++
++&iomuxc {
++	pinctrl_lcdif_dat: lcdifdatgrp {
++		fsl,pins = <
++			MX6UL_PAD_LCD_DATA00__LCDIF_DATA00	0x79
++			MX6UL_PAD_LCD_DATA01__LCDIF_DATA01	0x79
++			MX6UL_PAD_LCD_DATA02__LCDIF_DATA02	0x79
++			MX6UL_PAD_LCD_DATA03__LCDIF_DATA03	0x79
++			MX6UL_PAD_LCD_DATA04__LCDIF_DATA04	0x79
++			MX6UL_PAD_LCD_DATA05__LCDIF_DATA05	0x79
++			MX6UL_PAD_LCD_DATA06__LCDIF_DATA06	0x79
++			MX6UL_PAD_LCD_DATA07__LCDIF_DATA07	0x79
++			MX6UL_PAD_LCD_DATA08__LCDIF_DATA08	0x79
++			MX6UL_PAD_LCD_DATA09__LCDIF_DATA09	0x79
++			MX6UL_PAD_LCD_DATA10__LCDIF_DATA10	0x79
++			MX6UL_PAD_LCD_DATA11__LCDIF_DATA11	0x79
++			MX6UL_PAD_LCD_DATA12__LCDIF_DATA12	0x79
++			MX6UL_PAD_LCD_DATA13__LCDIF_DATA13	0x79
++			MX6UL_PAD_LCD_DATA14__LCDIF_DATA14	0x79
++			MX6UL_PAD_LCD_DATA15__LCDIF_DATA15	0x79
++		>;
++	};
++
++	pinctrl_lcdif_ctrl: lcdifctrlgrp {
++		fsl,pins = <
++			MX6UL_PAD_LCD_CLK__LCDIF_CLK		0x79
++			MX6UL_PAD_LCD_ENABLE__LCDIF_ENABLE	0x79
++			MX6UL_PAD_LCD_HSYNC__LCDIF_HSYNC	0x79
++			MX6UL_PAD_LCD_VSYNC__LCDIF_VSYNC	0x79
++			MX6UL_PAD_LCD_RESET__LCDIF_RESET	0x79
++		>;
++	};
++};
+\ No newline at end of file
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/nbiot-4g.dts b/arch/arm/boot/dts/igkboard-imx6ull/nbiot-4g.dts
+new file mode 100644
+index 000000000..07e278e7e
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/nbiot-4g.dts
+@@ -0,0 +1,34 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* NB-IoT/4G module use UART8 interfaces, conflict with SPI interface */
++
++&uart8 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_spi_uart8 &pinctrl_nbiot_ctrl>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_spi_uart8: spi_uart8_grp {
++		fsl,pins = <
++			MX6UL_PAD_LCD_DATA20__UART8_DCE_TX		0x1b0b1 /* MRXD */
++			MX6UL_PAD_LCD_DATA21__UART8_DCE_RX		0x1b0b1 /* MTXD */
++		>;
++	};
++
++	pinctrl_nbiot_ctrl: nbiot_ctrl_grp {
++		fsl,pins = <
++			MX6UL_PAD_LCD_DATA22__GPIO3_IO27		0x17059 /* NB_PWREN/4G_RESET */
++			MX6UL_PAD_JTAG_TRST_B__GPIO1_IO15		0x17059 /* NB_MRST/4G_POWER_KEY */
++		>;
++	};
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/pwm7.dts b/arch/arm/boot/dts/igkboard-imx6ull/pwm7.dts
+new file mode 100644
+index 000000000..6467a21a6
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/pwm7.dts
+@@ -0,0 +1,28 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/imx6ul-clock.h>
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, PWM7 interfaces */
++
++&pwm7 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_pwm7>;
++	clocks = <&clks IMX6UL_CLK_PWM7>, <&clks IMX6UL_CLK_PWM7>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_pwm7: pwm7grp {
++		fsl,pins = <
++			MX6UL_PAD_JTAG_TCK__PWM7_OUT	0x110b0
++		>;
++	};
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/pwm8.dts b/arch/arm/boot/dts/igkboard-imx6ull/pwm8.dts
+new file mode 100644
+index 000000000..edfc3a7b6
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/pwm8.dts
+@@ -0,0 +1,28 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/imx6ul-clock.h>
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, PWM8 interfaces, conflict with NB-IoT */
++
++&pwm8 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_pwm8_nbiot>;
++	clocks = <&clks IMX6UL_CLK_PWM8>, <&clks IMX6UL_CLK_PWM8>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_pwm8_nbiot: pwm8nbiotgrp {
++		fsl,pins = <
++			MX6UL_PAD_JTAG_TRST_B__PWM8_OUT	0x110b0
++		>;
++	};
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/spi1.dts b/arch/arm/boot/dts/igkboard-imx6ull/spi1.dts
+new file mode 100644
+index 000000000..a32dc451b
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/spi1.dts
+@@ -0,0 +1,39 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, SPI1 interfaces, conflict with UART8 */
++
++&ecspi1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_spi_uart8>;
++	cs-gpios = <&gpio3 26 GPIO_ACTIVE_LOW>;
++	status = "okay";
++
++	#address-cells = <1>;
++	#size-cells = <0>;
++
++	spidev0: spi@0 {
++		reg = <0>;
++		compatible = "semtech,sx1301";
++		spi-max-frequency = <1000000>;
++	};	
++};
++
++&iomuxc {
++	pinctrl_spi_uart8: spi_uart8_grp {
++		fsl,pins = <
++			MX6UL_PAD_LCD_DATA20__ECSPI1_SCLK	0x10b0
++			MX6UL_PAD_LCD_DATA22__ECSPI1_MOSI	0x10b0
++			MX6UL_PAD_LCD_DATA23__ECSPI1_MISO	0x10b0
++			MX6UL_PAD_LCD_DATA21__GPIO3_IO26	0x10b0
++		>;
++	};	
++};
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/uart2.dts b/arch/arm/boot/dts/igkboard-imx6ull/uart2.dts
+new file mode 100644
+index 000000000..2b48a9cd7
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/uart2.dts
+@@ -0,0 +1,26 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, UART2 interfaces */
++
++&uart2 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_uart2>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_uart2: uart2grp {
++		fsl,pins = <
++			MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX	0x1b0b1
++			MX6UL_PAD_UART2_RX_DATA__UART2_DCE_RX	0x1b0b1
++		>;
++	};
++};
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/uart3.dts b/arch/arm/boot/dts/igkboard-imx6ull/uart3.dts
+new file mode 100644
+index 000000000..7d9e8cdd1
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/uart3.dts
+@@ -0,0 +1,27 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, UART3 interfaces */
++
++&uart3 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_uart3>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_uart3: uart3grp {
++		fsl,pins = <
++			MX6UL_PAD_UART3_TX_DATA__UART3_DCE_TX	0x1b0b1
++			MX6UL_PAD_UART3_RX_DATA__UART3_DCE_RX	0x1b0b1
++		>;
++	};
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/uart4.dts b/arch/arm/boot/dts/igkboard-imx6ull/uart4.dts
+new file mode 100644
+index 000000000..aa81b91eb
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/uart4.dts
+@@ -0,0 +1,27 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, UART4 interfaces */
++
++&uart4 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_uart4>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_uart4: uart4grp {
++		fsl,pins = <
++			MX6UL_PAD_UART4_TX_DATA__UART4_DCE_TX	0x1b0b1
++			MX6UL_PAD_UART4_RX_DATA__UART4_DCE_RX	0x1b0b1
++		>;
++	};
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/uart7.dts b/arch/arm/boot/dts/igkboard-imx6ull/uart7.dts
+new file mode 100644
+index 000000000..0229b345e
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/uart7.dts
+@@ -0,0 +1,27 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* 40-pin extended GPIO, UART7 interfaces, conflict with LCD display */
++
++&uart7 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_uart7>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_uart7: uart7grp {
++		fsl,pins = <
++			MX6UL_PAD_LCD_DATA16__UART7_DCE_TX		0x1b0b1
++			MX6UL_PAD_LCD_DATA17__UART7_DCE_RX		0x1b0b1
++		>;
++	};
++};
++
+diff --git a/arch/arm/boot/dts/igkboard-imx6ull/w1.dts b/arch/arm/boot/dts/igkboard-imx6ull/w1.dts
+new file mode 100644
+index 000000000..bc3945ecb
+--- /dev/null
++++ b/arch/arm/boot/dts/igkboard-imx6ull/w1.dts
+@@ -0,0 +1,31 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include "../imx6ul-pinfunc.h"
++
++/* W1(DS18B20) on 40Pin Header Pin#7 (GPIO1_IO18) */
++
++&w1 {
++    compatible = "w1-gpio";
++    status = "okay";
++
++    pinctrl-names = "default";
++    pinctrl-0 = <&pinctrl_w1>;
++    gpio = <&gpio1 18 GPIO_ACTIVE_HIGH>;
++};
++
++
++&iomuxc {
++	pinctrl_w1: w1grp {
++		fsl,pins = <
++			MX6UL_PAD_UART1_CTS_B__GPIO1_IO18	0x110b0
++		>;
++	};
++};
++
+diff --git a/arch/arm/configs/igkboard-imx6ull_defconfig b/arch/arm/configs/igkboard-imx6ull_defconfig
+new file mode 100644
+index 000000000..84a721bc4
+--- /dev/null
++++ b/arch/arm/configs/igkboard-imx6ull_defconfig
+@@ -0,0 +1,604 @@
++CONFIG_KERNEL_LZO=y
++CONFIG_SYSVIPC=y
++CONFIG_POSIX_MQUEUE=y
++CONFIG_NO_HZ=y
++CONFIG_HIGH_RES_TIMERS=y
++CONFIG_PREEMPT=y
++CONFIG_IKCONFIG=y
++CONFIG_IKCONFIG_PROC=y
++CONFIG_LOG_BUF_SHIFT=18
++CONFIG_CGROUPS=y
++CONFIG_MEMCG=y
++CONFIG_CGROUP_PIDS=y
++CONFIG_CGROUP_FREEZER=y
++CONFIG_CGROUP_DEVICE=y
++CONFIG_NAMESPACES=y
++CONFIG_USER_NS=y
++CONFIG_RELAY=y
++CONFIG_BLK_DEV_INITRD=y
++CONFIG_EXPERT=y
++CONFIG_KALLSYMS_ALL=y
++CONFIG_PERF_EVENTS=y
++# CONFIG_SLUB_DEBUG is not set
++# CONFIG_COMPAT_BRK is not set
++CONFIG_ARCH_MXC=y
++CONFIG_SOC_IMX6Q=y
++CONFIG_SOC_IMX6SL=y
++CONFIG_SOC_IMX6SLL=y
++CONFIG_SOC_IMX6SX=y
++CONFIG_SOC_IMX6UL=y
++CONFIG_SOC_IMX7D=y
++CONFIG_SOC_IMX7ULP=y
++CONFIG_SMP=y
++CONFIG_VMSPLIT_2G=y
++CONFIG_ARM_PSCI=y
++CONFIG_HIGHMEM=y
++CONFIG_FORCE_MAX_ZONEORDER=14
++CONFIG_CMDLINE="noinitrd console=ttymxc0,115200"
++CONFIG_KEXEC=y
++CONFIG_CPU_FREQ=y
++CONFIG_CPU_FREQ_STAT=y
++CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
++CONFIG_CPU_FREQ_GOV_POWERSAVE=y
++CONFIG_CPU_FREQ_GOV_USERSPACE=y
++CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
++CONFIG_CPUFREQ_DT=y
++CONFIG_ARM_IMX6Q_CPUFREQ=y
++CONFIG_ARM_IMX_CPUFREQ_DT=y
++CONFIG_CPU_IDLE=y
++CONFIG_ARM_CPUIDLE=y
++CONFIG_ARM_PSCI_CPUIDLE=y
++CONFIG_VFP=y
++CONFIG_NEON=y
++CONFIG_PM_DEBUG=y
++CONFIG_PM_TEST_SUSPEND=y
++CONFIG_KPROBES=y
++CONFIG_MODULES=y
++CONFIG_MODULE_UNLOAD=y
++CONFIG_MODVERSIONS=y
++CONFIG_MODULE_SRCVERSION_ALL=y
++CONFIG_BINFMT_MISC=m
++CONFIG_CMA=y
++CONFIG_NET=y
++CONFIG_PACKET=y
++CONFIG_UNIX=y
++CONFIG_INET=y
++CONFIG_IP_MULTICAST=y
++CONFIG_IP_PNP=y
++CONFIG_IP_PNP_DHCP=y
++CONFIG_NETFILTER=y
++CONFIG_VLAN_8021Q=m
++CONFIG_LLC2=y
++CONFIG_CAN=y
++CONFIG_CAN_FLEXCAN=y
++CONFIG_BT=y
++CONFIG_BT_RFCOMM=y
++CONFIG_BT_RFCOMM_TTY=y
++CONFIG_BT_BNEP=y
++CONFIG_BT_BNEP_MC_FILTER=y
++CONFIG_BT_BNEP_PROTO_FILTER=y
++CONFIG_BT_HIDP=y
++CONFIG_BT_HCIBTUSB=y
++CONFIG_BT_HCIUART=y
++CONFIG_BT_HCIUART_BCSP=y
++CONFIG_BT_HCIUART_LL=y
++CONFIG_BT_HCIUART_3WIRE=y
++CONFIG_BT_HCIUART_MRVL=y
++CONFIG_BT_HCIVHCI=y
++CONFIG_BT_MRVL=y
++CONFIG_BT_MRVL_SDIO=y
++CONFIG_CFG80211=y
++CONFIG_NL80211_TESTMODE=y
++CONFIG_CFG80211_WEXT=y
++CONFIG_MAC80211=y
++CONFIG_PCI=y
++CONFIG_PCI_MSI=y
++CONFIG_PCI_IMX6_HOST=y
++CONFIG_PCI_IMX6_EP=y
++CONFIG_PCI_ENDPOINT=y
++CONFIG_PCI_ENDPOINT_CONFIGFS=y
++CONFIG_PCI_EPF_TEST=y
++CONFIG_DEVTMPFS=y
++CONFIG_DEVTMPFS_MOUNT=y
++# CONFIG_STANDALONE is not set
++CONFIG_FW_LOADER_USER_HELPER=y
++CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
++CONFIG_IMX_WEIM=y
++CONFIG_CONNECTOR=y
++CONFIG_MTD=y
++CONFIG_MTD_CMDLINE_PARTS=y
++CONFIG_MTD_BLOCK=y
++CONFIG_MTD_CFI=y
++CONFIG_MTD_JEDECPROBE=y
++CONFIG_MTD_CFI_INTELEXT=y
++CONFIG_MTD_CFI_AMDSTD=y
++CONFIG_MTD_CFI_STAA=y
++CONFIG_MTD_PHYSMAP=y
++CONFIG_MTD_PHYSMAP_OF=y
++CONFIG_MTD_DATAFLASH=y
++CONFIG_MTD_SST25L=y
++CONFIG_MTD_RAW_NAND=y
++CONFIG_MTD_NAND_GPMI_NAND=y
++CONFIG_MTD_NAND_MXC=y
++CONFIG_MTD_SPI_NOR=y
++# CONFIG_MTD_SPI_NOR_USE_4K_SECTORS is not set
++CONFIG_MTD_UBI=y
++CONFIG_MTD_UBI_FASTMAP=y
++CONFIG_MTD_UBI_BLOCK=y
++CONFIG_OF_OVERLAY=y
++CONFIG_BLK_DEV_LOOP=y
++CONFIG_BLK_DEV_RAM=y
++CONFIG_BLK_DEV_RAM_SIZE=65536
++CONFIG_PCI_ENDPOINT_TEST=y
++CONFIG_EEPROM_AT24=y
++CONFIG_EEPROM_AT25=y
++# CONFIG_SCSI_PROC_FS is not set
++CONFIG_BLK_DEV_SD=y
++# CONFIG_BLK_DEV_BSG is not set
++CONFIG_SCSI_CONSTANTS=y
++CONFIG_SCSI_LOGGING=y
++CONFIG_SCSI_SCAN_ASYNC=y
++CONFIG_ATA=y
++CONFIG_SATA_AHCI_PLATFORM=y
++CONFIG_AHCI_IMX=y
++CONFIG_PATA_IMX=y
++CONFIG_MD=y
++CONFIG_BLK_DEV_MD=m
++CONFIG_BLK_DEV_DM=m
++CONFIG_DM_CRYPT=m
++CONFIG_NETDEVICES=y
++CONFIG_TUN=y
++# CONFIG_NET_VENDOR_BROADCOM is not set
++CONFIG_CS89x0_PLATFORM=y
++# CONFIG_NET_VENDOR_FARADAY is not set
++# CONFIG_NET_VENDOR_INTEL is not set
++# CONFIG_NET_VENDOR_MARVELL is not set
++# CONFIG_NET_VENDOR_MICREL is not set
++# CONFIG_NET_VENDOR_MICROCHIP is not set
++# CONFIG_NET_VENDOR_NATSEMI is not set
++# CONFIG_NET_VENDOR_SEEQ is not set
++CONFIG_SMC91X=y
++CONFIG_SMC911X=y
++CONFIG_SMSC911X=y
++# CONFIG_NET_VENDOR_STMICRO is not set
++CONFIG_MICREL_PHY=y
++CONFIG_AT803X_PHY=y
++CONFIG_USB_PEGASUS=m
++CONFIG_USB_RTL8150=m
++CONFIG_USB_RTL8152=y
++CONFIG_USB_LAN78XX=y
++CONFIG_USB_USBNET=y
++CONFIG_USB_NET_CDC_EEM=m
++CONFIG_USB_NET_SMSC95XX=y
++CONFIG_USB_NET_MCS7830=y
++CONFIG_ATH10K=m
++CONFIG_ATH10K_SDIO=m
++CONFIG_HOSTAP=y
++CONFIG_WL12XX=m
++CONFIG_WL18XX=m
++CONFIG_WLCORE_SDIO=m
++# CONFIG_WILINK_PLATFORM_DATA is not set
++CONFIG_INPUT_EVDEV=y
++CONFIG_INPUT_EVBUG=m
++CONFIG_KEYBOARD_GPIO=y
++CONFIG_KEYBOARD_RPMSG=y
++CONFIG_KEYBOARD_IMX=y
++CONFIG_MOUSE_PS2=m
++CONFIG_MOUSE_PS2_ELANTECH=y
++CONFIG_INPUT_TOUCHSCREEN=y
++CONFIG_TOUCHSCREEN_ADS7846=y
++CONFIG_TOUCHSCREEN_AD7879=y
++CONFIG_TOUCHSCREEN_AD7879_I2C=y
++CONFIG_TOUCHSCREEN_ATMEL_MXT=y
++CONFIG_TOUCHSCREEN_DA9052=y
++CONFIG_TOUCHSCREEN_EGALAX=y
++CONFIG_TOUCHSCREEN_ELAN_TS=y
++CONFIG_TOUCHSCREEN_GOODIX=y
++CONFIG_TOUCHSCREEN_ILI210X=y
++CONFIG_TOUCHSCREEN_MAX11801=y
++CONFIG_TOUCHSCREEN_IMX6UL_TSC=y
++CONFIG_TOUCHSCREEN_EDT_FT5X06=y
++CONFIG_TOUCHSCREEN_MC13783=y
++CONFIG_TOUCHSCREEN_TSC2004=y
++CONFIG_TOUCHSCREEN_TSC2007=y
++CONFIG_TOUCHSCREEN_STMPE=y
++CONFIG_TOUCHSCREEN_SX8654=y
++CONFIG_TOUCHSCREEN_COLIBRI_VF50=y
++CONFIG_TOUCHSCREEN_FTS=y
++CONFIG_INPUT_MISC=y
++CONFIG_INPUT_MMA8450=y
++CONFIG_SERIO_SERPORT=m
++# CONFIG_LEGACY_PTYS is not set
++CONFIG_SERIAL_IMX=y
++CONFIG_SERIAL_IMX_CONSOLE=y
++CONFIG_SERIAL_FSL_LPUART=y
++CONFIG_SERIAL_FSL_LPUART_CONSOLE=y
++CONFIG_SERIAL_DEV_BUS=y
++# CONFIG_I2C_COMPAT is not set
++CONFIG_I2C_CHARDEV=y
++CONFIG_I2C_MUX=y
++CONFIG_I2C_MUX_GPIO=y
++# CONFIG_I2C_HELPER_AUTO is not set
++CONFIG_I2C_ALGOPCF=m
++CONFIG_I2C_ALGOPCA=m
++CONFIG_I2C_GPIO=y
++CONFIG_I2C_IMX=y
++CONFIG_I2C_IMX_LPI2C=y
++CONFIG_SPI=y
++CONFIG_SPI_FSL_LPSPI=y
++CONFIG_SPI_FSL_QUADSPI=y
++CONFIG_SPI_GPIO=y
++CONFIG_SPI_IMX=y
++CONFIG_SPI_SPIDEV=y
++CONFIG_SPI_SLAVE=y
++CONFIG_SPI_SLAVE_TIME=y
++CONFIG_SPI_SLAVE_SYSTEM_CONTROL=y
++CONFIG_GPIO_SYSFS=y
++CONFIG_GPIO_MXC=y
++CONFIG_GPIO_SIOX=m
++CONFIG_GPIO_IMX_RPMSG=y
++CONFIG_GPIO_MAX732X=y
++CONFIG_GPIO_PCA953X=y
++CONFIG_GPIO_PCF857X=y
++CONFIG_GPIO_STMPE=y
++CONFIG_GPIO_74X164=y
++CONFIG_POWER_RESET=y
++CONFIG_POWER_RESET_SYSCON=y
++CONFIG_POWER_RESET_SYSCON_POWEROFF=y
++CONFIG_POWER_SUPPLY=y
++CONFIG_SABRESD_MAX8903=y
++CONFIG_RN5T618_POWER=m
++CONFIG_SENSORS_MC13783_ADC=y
++CONFIG_SENSORS_GPIO_FAN=y
++CONFIG_SENSORS_IIO_HWMON=y
++CONFIG_SENSORS_MAX17135=y
++CONFIG_THERMAL=y
++CONFIG_THERMAL_STATISTICS=y
++CONFIG_THERMAL_WRITABLE_TRIPS=y
++CONFIG_CPU_THERMAL=y
++CONFIG_IMX_THERMAL=y
++CONFIG_DEVICE_THERMAL=y
++CONFIG_WATCHDOG=y
++CONFIG_DA9063_WATCHDOG=m
++CONFIG_DA9062_WATCHDOG=y
++CONFIG_RN5T618_WATCHDOG=y
++CONFIG_IMX2_WDT=y
++CONFIG_IMX7ULP_WDT=y
++CONFIG_MFD_DA9052_I2C=y
++CONFIG_MFD_DA9062=y
++CONFIG_MFD_DA9063=y
++CONFIG_MFD_MC13XXX_SPI=y
++CONFIG_MFD_MC13XXX_I2C=y
++CONFIG_MFD_MAX17135=y
++CONFIG_MFD_RN5T618=y
++CONFIG_MFD_SI476X_CORE=y
++CONFIG_MFD_STMPE=y
++CONFIG_REGULATOR=y
++CONFIG_REGULATOR_FIXED_VOLTAGE=y
++CONFIG_REGULATOR_ANATOP=y
++CONFIG_REGULATOR_DA9052=y
++CONFIG_REGULATOR_DA9062=y
++CONFIG_REGULATOR_DA9063=y
++CONFIG_REGULATOR_GPIO=y
++CONFIG_REGULATOR_LTC3676=y
++CONFIG_REGULATOR_MAX17135=y
++CONFIG_REGULATOR_MC13783=y
++CONFIG_REGULATOR_MC13892=y
++CONFIG_REGULATOR_PF1550_RPMSG=y
++CONFIG_REGULATOR_PFUZE100=y
++CONFIG_REGULATOR_RN5T618=y
++CONFIG_RC_CORE=y
++CONFIG_RC_DEVICES=y
++CONFIG_IR_GPIO_CIR=y
++CONFIG_MEDIA_SUPPORT=y
++CONFIG_MEDIA_USB_SUPPORT=y
++CONFIG_USB_VIDEO_CLASS=m
++CONFIG_RADIO_SI476X=y
++CONFIG_V4L_PLATFORM_DRIVERS=y
++CONFIG_VIDEO_MUX=y
++CONFIG_VIDEO_MXC_CAPTURE=m
++CONFIG_VIDEO_MXC_OUTPUT=y
++CONFIG_VIDEO_MXC_CSI_CAMERA=m
++CONFIG_MXC_VADC=m
++CONFIG_MXC_MIPI_CSI=m
++CONFIG_MXC_CAMERA_OV5640=m
++CONFIG_MXC_CAMERA_OV5640_V2=m
++CONFIG_MXC_CAMERA_OV5640_MIPI=m
++CONFIG_MXC_CAMERA_OV5640_MIPI_V2=m
++CONFIG_MXC_TVIN_ADV7180=m
++CONFIG_MXC_IPU_DEVICE_QUEUE_SDC=m
++CONFIG_VIDEO_MXC_IPU_OUTPUT=y
++CONFIG_VIDEO_MXC_PXP_V4L2=y
++CONFIG_V4L_MEM2MEM_DRIVERS=y
++CONFIG_VIDEO_CODA=m
++CONFIG_VIDEO_IMX_PXP=y
++CONFIG_VIDEO_ADV7180=m
++CONFIG_VIDEO_OV2680=m
++CONFIG_VIDEO_OV5645=m
++CONFIG_DRM=y
++CONFIG_DRM_PANEL_LVDS=y
++CONFIG_DRM_PANEL_SIMPLE=y
++CONFIG_DRM_PANEL_SEIKO_43WVF1G=y
++CONFIG_DRM_TI_TFP410=y
++CONFIG_FB=y
++CONFIG_FB_MXS=y
++CONFIG_FB_MXC_SYNC_PANEL=y
++CONFIG_FB_MXC_OVERLAY=y
++CONFIG_FB_MXC_MIPI_DSI_NORTHWEST=y
++CONFIG_FB_MXC_ADV7535=y
++CONFIG_FB_MXC_TRULY_PANEL_TFT3P5581E=y
++CONFIG_FB_MXC_TRULY_WVGA_SYNC_PANEL=y
++CONFIG_FB_MXC_RK_PANEL_RK055AHD042=y
++CONFIG_FB_MXC_RK_PANEL_RK055IQH042=y
++CONFIG_FB_MXC_MIPI_DSI_SAMSUNG=y
++CONFIG_FB_MXC_MIPI_DSI=y
++CONFIG_FB_MXC_LDB=y
++CONFIG_FB_MXC_EINK_PANEL=y
++CONFIG_FB_MXC_EINK_V2_PANEL=y
++CONFIG_FB_MXC_HDMI=y
++CONFIG_FB_MXS_SII902X=y
++CONFIG_FB_MXC_DCIC=y
++CONFIG_LCD_CLASS_DEVICE=y
++CONFIG_LCD_L4F00242T03=y
++CONFIG_LCD_PLATFORM=y
++CONFIG_BACKLIGHT_PWM=y
++CONFIG_BACKLIGHT_GPIO=y
++CONFIG_FRAMEBUFFER_CONSOLE=y
++CONFIG_LOGO=y
++CONFIG_SOUND=y
++CONFIG_SND=y
++CONFIG_SND_USB_AUDIO=m
++CONFIG_SND_SOC=y
++CONFIG_SND_SOC_FSL_ASRC=y
++CONFIG_SND_SOC_FSL_MQS=y
++CONFIG_SND_SOC_FSL_RPMSG=y
++CONFIG_SND_IMX_SOC=y
++CONFIG_SND_SOC_EUKREA_TLV320=y
++CONFIG_SND_SOC_IMX_ES8328=y
++CONFIG_SND_SOC_IMX_SGTL5000=y
++CONFIG_SND_SOC_IMX_SPDIF=y
++CONFIG_SND_SOC_FSL_ASOC_CARD=y
++CONFIG_SND_SOC_IMX_HDMI=y
++CONFIG_SND_SOC_IMX6QDL_HDMI=y
++CONFIG_SND_SOC_AC97_CODEC=y
++CONFIG_SND_SOC_CS42XX8_I2C=y
++CONFIG_SND_SOC_WM8960=y
++CONFIG_SND_SOC_WM8962=y
++CONFIG_SND_SOC_RPMSG_WM8960=y
++CONFIG_SND_SIMPLE_CARD=y
++CONFIG_HID_MULTITOUCH=y
++CONFIG_USB=y
++CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
++CONFIG_USB_EHCI_HCD=y
++CONFIG_USB_HCD_TEST_MODE=y
++CONFIG_USB_ACM=m
++CONFIG_USB_STORAGE=y
++CONFIG_USB_CHIPIDEA=y
++CONFIG_USB_CHIPIDEA_UDC=y
++CONFIG_USB_CHIPIDEA_HOST=y
++CONFIG_USB_SERIAL=m
++CONFIG_USB_SERIAL_GENERIC=y
++CONFIG_USB_SERIAL_FTDI_SIO=m
++CONFIG_USB_SERIAL_OPTION=m
++CONFIG_USB_TEST=m
++CONFIG_USB_EHSET_TEST_FIXTURE=m
++CONFIG_NOP_USB_XCEIV=y
++CONFIG_USB_MXS_PHY=y
++CONFIG_USB_GADGET=y
++CONFIG_USB_CONFIGFS=y
++CONFIG_USB_CONFIGFS_SERIAL=y
++CONFIG_USB_CONFIGFS_ACM=y
++CONFIG_USB_CONFIGFS_OBEX=y
++CONFIG_USB_CONFIGFS_NCM=y
++CONFIG_USB_CONFIGFS_ECM=y
++CONFIG_USB_CONFIGFS_ECM_SUBSET=y
++CONFIG_USB_CONFIGFS_RNDIS=y
++CONFIG_USB_CONFIGFS_EEM=y
++CONFIG_USB_CONFIGFS_MASS_STORAGE=y
++CONFIG_USB_CONFIGFS_F_LB_SS=y
++CONFIG_USB_CONFIGFS_F_FS=y
++CONFIG_USB_CONFIGFS_F_UAC1=y
++CONFIG_USB_CONFIGFS_F_UAC2=y
++CONFIG_USB_CONFIGFS_F_MIDI=y
++CONFIG_USB_CONFIGFS_F_HID=y
++CONFIG_USB_CONFIGFS_F_UVC=y
++CONFIG_USB_CONFIGFS_F_PRINTER=y
++CONFIG_USB_ZERO=m
++CONFIG_USB_AUDIO=m
++CONFIG_USB_ETH=m
++CONFIG_USB_G_NCM=m
++CONFIG_USB_GADGETFS=m
++CONFIG_USB_FUNCTIONFS=m
++CONFIG_USB_MASS_STORAGE=m
++CONFIG_USB_G_SERIAL=m
++CONFIG_MMC=y
++CONFIG_MMC_SDHCI=y
++CONFIG_MMC_SDHCI_PLTFM=y
++CONFIG_MMC_SDHCI_ESDHC_IMX=y
++CONFIG_NEW_LEDS=y
++CONFIG_LEDS_CLASS=y
++CONFIG_LEDS_GPIO=y
++CONFIG_LEDS_PWM=y
++CONFIG_LEDS_TRIGGERS=y
++CONFIG_LEDS_TRIGGER_TIMER=y
++CONFIG_LEDS_TRIGGER_ONESHOT=y
++CONFIG_LEDS_TRIGGER_HEARTBEAT=y
++CONFIG_LEDS_TRIGGER_BACKLIGHT=y
++CONFIG_LEDS_TRIGGER_GPIO=y
++CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
++CONFIG_RTC_CLASS=y
++CONFIG_RTC_INTF_DEV_UIE_EMUL=y
++CONFIG_RTC_DRV_DS1307=y
++CONFIG_RTC_DRV_ISL1208=y
++CONFIG_RTC_DRV_PCF8523=y
++CONFIG_RTC_DRV_PCF8563=y
++CONFIG_RTC_DRV_M41T80=y
++CONFIG_RTC_DRV_RC5T619=y
++CONFIG_RTC_DRV_DA9063=y
++CONFIG_RTC_DRV_MC13XXX=y
++CONFIG_RTC_DRV_MXC=y
++CONFIG_RTC_DRV_MXC_V2=y
++CONFIG_RTC_DRV_SNVS=y
++CONFIG_RTC_DRV_IMX_RPMSG=y
++CONFIG_DMADEVICES=y
++CONFIG_FSL_EDMA=y
++CONFIG_IMX_SDMA=y
++CONFIG_MXS_DMA=y
++CONFIG_MXC_PXP_V2=y
++CONFIG_MXC_PXP_V3=y
++CONFIG_DMATEST=m
++CONFIG_STAGING=y
++CONFIG_STAGING_MEDIA=y
++CONFIG_COMMON_CLK_PWM=y
++CONFIG_REMOTEPROC=y
++CONFIG_IMX_REMOTEPROC=y
++CONFIG_EXTCON_USB_GPIO=y
++CONFIG_IIO=y
++CONFIG_MMA8452=y
++CONFIG_IMX7D_ADC=y
++CONFIG_RN5T618_ADC=y
++CONFIG_VF610_ADC=y
++CONFIG_FXAS21002C=y
++CONFIG_FXOS8700_I2C=y
++CONFIG_RPMSG_IIO_PEDOMETER=m
++CONFIG_SENSORS_ISL29018=y
++CONFIG_MAG3110=y
++CONFIG_MPL3115=y
++CONFIG_PWM=y
++CONFIG_PWM_FSL_FTM=y
++CONFIG_PWM_IMX27=y
++CONFIG_PWM_IMX_TPM=y
++CONFIG_PHY_MIXEL_LVDS=y
++CONFIG_PHY_MIXEL_LVDS_COMBO=y
++CONFIG_NVMEM_IMX_OCOTP=y
++CONFIG_NVMEM_SNVS_LPGPR=y
++CONFIG_TEE=y
++CONFIG_OPTEE=y
++CONFIG_MUX_MMIO=y
++CONFIG_SIOX=m
++CONFIG_SIOX_BUS_GPIO=m
++CONFIG_MXC_SIM=y
++CONFIG_MXC_IPU=y
++CONFIG_MXC_SIMv2=y
++CONFIG_MXC_MLB150=y
++CONFIG_MXC_IPU_V3_PRE=y
++CONFIG_MXC_HDMI_CEC=y
++CONFIG_MXC_MIPI_CSI2=y
++CONFIG_EXT2_FS=y
++CONFIG_EXT2_FS_XATTR=y
++CONFIG_EXT2_FS_POSIX_ACL=y
++CONFIG_EXT2_FS_SECURITY=y
++CONFIG_EXT3_FS=y
++CONFIG_EXT3_FS_POSIX_ACL=y
++CONFIG_EXT3_FS_SECURITY=y
++CONFIG_QUOTA=y
++CONFIG_QUOTA_NETLINK_INTERFACE=y
++# CONFIG_PRINT_QUOTA_WARNING is not set
++CONFIG_AUTOFS4_FS=y
++CONFIG_FUSE_FS=y
++CONFIG_OVERLAY_FS=y
++CONFIG_ISO9660_FS=m
++CONFIG_JOLIET=y
++CONFIG_ZISOFS=y
++CONFIG_UDF_FS=m
++CONFIG_MSDOS_FS=m
++CONFIG_VFAT_FS=y
++CONFIG_TMPFS=y
++CONFIG_TMPFS_POSIX_ACL=y
++CONFIG_JFFS2_FS=y
++CONFIG_UBIFS_FS=y
++CONFIG_NFS_FS=y
++CONFIG_NFS_V3_ACL=y
++CONFIG_NFS_V4=y
++CONFIG_NFS_V4_1=y
++CONFIG_NFS_V4_2=y
++CONFIG_ROOT_NFS=y
++CONFIG_NLS_DEFAULT="cp437"
++CONFIG_NLS_CODEPAGE_437=y
++CONFIG_NLS_ASCII=y
++CONFIG_NLS_ISO8859_1=y
++CONFIG_NLS_ISO8859_15=m
++CONFIG_NLS_UTF8=y
++CONFIG_SECURITYFS=y
++CONFIG_CRYPTO_USER=y
++CONFIG_CRYPTO_TEST=m
++CONFIG_CRYPTO_ECHAINIV=m
++CONFIG_CRYPTO_TLS=m
++CONFIG_CRYPTO_CFB=m
++CONFIG_CRYPTO_CTS=m
++CONFIG_CRYPTO_LRW=m
++CONFIG_CRYPTO_OFB=m
++CONFIG_CRYPTO_PCBC=m
++CONFIG_CRYPTO_XCBC=m
++CONFIG_CRYPTO_VMAC=m
++CONFIG_CRYPTO_XXHASH=m
++CONFIG_CRYPTO_BLAKE2B=m
++CONFIG_CRYPTO_BLAKE2S=m
++CONFIG_CRYPTO_MD4=m
++CONFIG_CRYPTO_MD5=m
++CONFIG_CRYPTO_RMD160=m
++CONFIG_CRYPTO_SHA3=m
++CONFIG_CRYPTO_SM3=m
++CONFIG_CRYPTO_STREEBOG=m
++CONFIG_CRYPTO_WP512=m
++CONFIG_CRYPTO_ANUBIS=m
++CONFIG_CRYPTO_ARC4=m
++CONFIG_CRYPTO_BLOWFISH=m
++CONFIG_CRYPTO_CAMELLIA=m
++CONFIG_CRYPTO_CAST5=m
++CONFIG_CRYPTO_CAST6=m
++CONFIG_CRYPTO_DES=m
++CONFIG_CRYPTO_FCRYPT=m
++CONFIG_CRYPTO_KHAZAD=m
++CONFIG_CRYPTO_SEED=m
++CONFIG_CRYPTO_SERPENT=m
++CONFIG_CRYPTO_SM4=m
++CONFIG_CRYPTO_TEA=m
++CONFIG_CRYPTO_TWOFISH=m
++CONFIG_CRYPTO_ANSI_CPRNG=m
++CONFIG_CRYPTO_USER_API_RNG=m
++CONFIG_CRYPTO_DEV_FSL_CAAM_SECVIO=m
++CONFIG_CRYPTO_DEV_FSL_CAAM=m
++CONFIG_CRYPTO_DEV_FSL_CAAM_SM_TEST=m
++CONFIG_CRYPTO_DEV_SAHARA=y
++CONFIG_CRYPTO_DEV_MXS_DCP=y
++CONFIG_CRC_CCITT=m
++CONFIG_CRC_T10DIF=y
++CONFIG_CRC7=m
++CONFIG_LIBCRC32C=m
++CONFIG_DMA_CMA=y
++CONFIG_FONTS=y
++CONFIG_FONT_8x8=y
++CONFIG_FONT_8x16=y
++CONFIG_PRINTK_TIME=y
++# CONFIG_DEBUG_BUGVERBOSE is not set
++CONFIG_MAGIC_SYSRQ=y
++CONFIG_DEBUG_FS=y
++# CONFIG_SCHED_DEBUG is not set
++# CONFIG_DEBUG_PREEMPT is not set
++# CONFIG_FTRACE is not set
++
++# enable AF_ALG
++CONFIG_CRYPTO_USER_API_HASH=m
++CONFIG_CRYPTO_USER_API_SKCIPHER=m
++CONFIG_CRYPTO_USER_API_AEAD=m
++
++# enable KTLS
++CONFIG_TLS=y
++CONFIG_TLS_DEVICE=y
++
++#enable trust based hardware key
++CONFIG_TRUSTED_KEYS=m
++CONFIG_TRUSTED_KEYS_TPM=n
++CONFIG_TRUSTED_KEYS_TEE=n
++CONFIG_TRUSTED_KEYS_CAAM=n
++CONFIG_TRUSTED_KEYS_DCP=y
++
++# Custom Addition of Linke
++# enable one wire device driver
++CONFIG_W1=y
++CONFIG_W1_MASTER_GPIO=y
++CONFIG_W1_SLAVE_THERM=y
++
++# enable drm to realize fb
++CONFIG_DRM_MXSFB=y
+diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+index 582db321e..7444c06e4 100644
+--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
++++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+@@ -370,7 +370,7 @@ static int mxsfb_probe(struct platform_device *pdev)
+ 	if (ret)
+ 		goto err_unload;
+ 
+-	drm_fbdev_generic_setup(drm, 32);
++	drm_fbdev_generic_setup(drm, 16); /* modify color depth to support RGB565 LCD by guowenxue */
+ 
+ 	return 0;
+ 
+@@ -426,7 +426,7 @@ static struct platform_driver mxsfb_platform_driver = {
+ 	.remove		= mxsfb_remove,
+ 	.shutdown	= mxsfb_shutdown,
+ 	.driver	= {
+-		.name		= "mxsfb",
++		.name		= "mxsfb-drm",
+ 		.of_match_table	= mxsfb_dt_ids,
+ 		.pm		= &mxsfb_pm_ops,
+ 	},
+diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
+index 009e3e96c..3b158fd50 100644
+--- a/drivers/gpu/drm/panel/panel-simple.c
++++ b/drivers/gpu/drm/panel/panel-simple.c
+@@ -4024,8 +4024,33 @@ static const struct panel_desc arm_rtsm = {
+ 	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+ };
+ 
++static const struct drm_display_mode igkboard_6ull_panel_mode[] = {
++    {    
++        .clock = 30000,
++        .hdisplay = 800, 
++        .hsync_start = 800 + 40,
++        .hsync_end = 800 + 40 + 48,
++        .htotal = 800 + 40 + 48 + 88,
++        .vdisplay = 480, 
++        .vsync_start = 480 + 13,
++        .vsync_end = 480 + 13 + 3, 
++        .vtotal = 480 + 13 + 3 + 32,
++        .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
++    },   
++};
++
++static const struct panel_desc igkboard_6ull_panel = {
++    .modes = igkboard_6ull_panel_mode,
++    .num_modes = 1, 
++    .bpc = 8, 
++    .bus_format = MEDIA_BUS_FMT_RGB565_1X16,
++};
++
+ static const struct of_device_id platform_of_match[] = {
+ 	{
++		.compatible = "lingyun,igkboard-imx6ull-panel",
++		.data = &igkboard_6ull_panel,
++	}, {
+ 		.compatible = "ampire,am-1280800n3tzqw-t00h",
+ 		.data = &ampire_am_1280800n3tzqw_t00h,
+ 	}, {
+diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
+index b28ac814a..12143bbea 100644
+--- a/drivers/video/backlight/pwm_bl.c
++++ b/drivers/video/backlight/pwm_bl.c
+@@ -53,7 +53,7 @@ static void pwm_backlight_power_on(struct pwm_bl_data *pb)
+ 	if (err < 0)
+ 		dev_err(pb->dev, "failed to enable power supply\n");
+ 
+-	state.enabled = true;
++	state.enabled = true; /* enalbe backlight as default */
+ 	pwm_apply_state(pb->pwm, &state);
+ 
+ 	if (pb->post_pwm_on_delay)
+diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
+index fa205be94..8bb25f64f 100644
+--- a/drivers/video/fbdev/core/fbcon.c
++++ b/drivers/video/fbdev/core/fbcon.c
+@@ -345,6 +345,7 @@ static int get_color(struct vc_data *vc, struct fb_info *info,
+ 	return color;
+ }
+ 
++#if 0 /* comment by guowenxue */
+ static void fb_flashcursor(struct work_struct *work)
+ {
+ 	struct fbcon_ops *ops = container_of(work, struct fbcon_ops, cursor_work.work);
+@@ -384,6 +385,9 @@ static void fb_flashcursor(struct work_struct *work)
+ 	queue_delayed_work(system_power_efficient_wq, &ops->cursor_work,
+ 			   ops->cur_blink_jiffies);
+ }
++#else
++static void fb_flashcursor(struct work_struct *work) {}
++#endif
+ 
+ static void fbcon_add_cursor_work(struct fb_info *info)
+ {
+@@ -1301,6 +1305,7 @@ static void fbcon_clear_margins(struct vc_data *vc, int bottom_only)
+ 		ops->clear_margins(vc, info, margin_color, bottom_only);
+ }
+ 
++#if 0 /* comment by guowenxue */
+ static void fbcon_cursor(struct vc_data *vc, int mode)
+ {
+ 	struct fb_info *info = fbcon_info_from_console(vc->vc_num);
+@@ -1325,6 +1330,9 @@ static void fbcon_cursor(struct vc_data *vc, int mode)
+ 	ops->cursor(vc, info, mode, get_color(vc, info, c, 1),
+ 		    get_color(vc, info, c, 0));
+ }
++#else
++static void fbcon_cursor(struct vc_data *vc, int mode) {}
++#endif
+ 
+ static int scrollback_phys_max = 0;
+ static int scrollback_max = 0;
+diff --git a/drivers/video/fbdev/mxsfb.c b/drivers/video/fbdev/mxsfb.c
+index 862278022..ce647f570 100644
+--- a/drivers/video/fbdev/mxsfb.c
++++ b/drivers/video/fbdev/mxsfb.c
+@@ -1586,7 +1586,7 @@ MODULE_DEVICE_TABLE(platform, mxsfb_devtype);
+ 
+ static const struct of_device_id mxsfb_dt_ids[] = {
+ 	{ .compatible = "fsl,imx23-lcdif", .data = &mxsfb_devtype[0], },
+-	{ .compatible = "fsl,imx28-lcdif", .data = &mxsfb_devtype[1], },
++	//{ .compatible = "fsl,imx28-lcdif", .data = &mxsfb_devtype[1], }, /* Use DRM driver as default */
+ 	{ .compatible = "fsl,imx7ulp-lcdif", .data = &mxsfb_devtype[2], },
+ 	{ /* sentinel */ }
+ };

--
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