imx6ull.git - Gitblit

parent: 513fc5cf | patch | commit | ignore whitespace

Add lf-5.15.71-2.2.0 patch for u-boot and linux

guowenxue

2023-03-30 7800e82e4b6b59a46e648c93f488636b0a1555fc

Add lf-5.15.71-2.2.0 patch for u-boot and linux

2 files added

	bsp/bootloader/patch/uboot-imx-lf-5.15.71-2.2.0.patch	1613 ●●●●● patch \| view \| raw \| blame \| history
	bsp/kernel/patch/linux-imx-lf-5.15.71-2.2.0.patch	1974 ●●●●● patch \| view \| raw \| blame \| history

 bsp/bootloader/patch/uboot-imx-lf-5.15.71-2.2.0.patch

New file
@@ -0,0 +1,1613 @@
diff -Nuar -x lingyun.bmp uboot-imx/arch/arm/dts/igkboard.dts uboot-imx-lf-5.15.71-2.2.0/arch/arm/dts/igkboard.dts
--- uboot-imx/arch/arm/dts/igkboard.dts    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/arch/arm/dts/igkboard.dts    2023-03-02 17:44:16.779628248 +0800
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+//
+// Copyright (C) 2016 Freescale Semiconductor, Inc.
+
+/dts-v1/;
+
+#include "imx6ull.dtsi"
+#include "imx6ul-14x14-evk.dtsi"
+#include "imx6ul-14x14-evk-u-boot.dtsi"
+
+/ {
+    model = "LingYun IoT Gateway Board";
+    compatible = "fsl,imx6ull-14x14-evk", "fsl,imx6ull";
+};
+
+&clks {
+    assigned-clocks = <&clks IMX6UL_CLK_PLL3_PFD2>;
+    assigned-clock-rates = <320000000>;
+};
diff -Nuar -x lingyun.bmp uboot-imx/arch/arm/dts/imx6ul-14x14-evk.dtsi uboot-imx-lf-5.15.71-2.2.0/arch/arm/dts/imx6ul-14x14-evk.dtsi
--- uboot-imx/arch/arm/dts/imx6ul-14x14-evk.dtsi    2023-03-01 18:01:20.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/arch/arm/dts/imx6ul-14x14-evk.dtsi    2023-03-02 20:29:44.747352634 +0800
@@ -83,6 +83,9 @@
     pinctrl-0 = <&pinctrl_enet1>;
     phy-mode = "rmii";
     phy-handle = <&ethphy0>;
+    phy-reset-gpios = <&gpio5 7 GPIO_ACTIVE_LOW>;
+    phy-reset-duration = <50>;
+    phy-reset-post-delay = <15>;
     status = "okay";
 };
 
@@ -91,14 +94,17 @@
     pinctrl-0 = <&pinctrl_enet2>;
     phy-mode = "rmii";
     phy-handle = <&ethphy1>;
+    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@2 {
-            reg = <2>;
+        ethphy0: ethernet-phy@0 {
+            reg = <0>;
             micrel,led-mode = <1>;
             clocks = <&clks IMX6UL_CLK_ENET_REF>;
             clock-names = "rmii-ref";
@@ -151,21 +157,21 @@
     status = "okay";
 
     display0: display@0 {
-        bits-per-pixel = <24>;
-        bus-width = <24>;
+        bits-per-pixel = <16>;
+        bus-width = <16>;
 
         display-timings {
             native-mode = <&timing0>;
             timing0: timing0 {
-            clock-frequency = <9200000>;
-            hactive = <480>;
-            vactive = <272>;
-            hfront-porch = <8>;
-            hback-porch = <4>;
-            hsync-len = <41>;
-            vback-porch = <2>;
-            vfront-porch = <4>;
-            vsync-len = <10>;
+            clock-frequency = <30000000>;
+            hactive = <800>;
+            vactive = <480>;
+            hfront-porch = <40>;
+            hback-porch = <88>;
+            hsync-len = <48>;
+            vback-porch = <32>;
+            vfront-porch = <13>;
+            vsync-len = <3>;
 
             hsync-active = <0>;
             vsync-active = <0>;
@@ -284,6 +290,40 @@
 
 &iomuxc {
     pinctrl-names = "default";
+    pinctrl-0 = <&pinctrl_extgpio>;
+
+    pinctrl_extgpio: extgpiogrp {
+        fsl,pins = <
+            MX6UL_PAD_GPIO1_IO03__GPIO1_IO03    0x17059 /*    3# I2C1_SDA */
+            MX6UL_PAD_GPIO1_IO02__GPIO1_IO02    0x17059 /*    5# I2C1_SCL */
+            MX6UL_PAD_UART1_CTS_B__GPIO1_IO18    0x17059 /*    7#    GPIO    */
+            MX6UL_PAD_UART3_TX_DATA__GPIO1_IO24 0x17059 /* 11# UART3_TX */
+            MX6UL_PAD_UART4_TX_DATA__GPIO1_IO28 0x17059 /* 13# UART4_TX */
+            MX6UL_PAD_UART4_RX_DATA__GPIO1_IO29 0x17059 /* 15# UART4_RX */
+            MX6UL_PAD_LCD_DATA22__GPIO3_IO27    0x17059 /* 19# SPI1_MOSI*/
+            MX6UL_PAD_LCD_DATA23__GPIO3_IO28    0x17059 /* 21# SPI1_MISO*/
+            MX6UL_PAD_LCD_DATA20__GPIO3_IO25    0x17059 /* 23# SPI1_SCLK*/
+            MX6UL_PAD_UART3_CTS_B__GPIO1_IO26    0x17059 /* 27# CAN1_TX    */
+            MX6UL_PAD_UART3_RTS_B__GPIO1_IO27    0x17059 /* 29# CAN1_RX    */
+            MX6UL_PAD_UART2_CTS_B__GPIO1_IO22    0x17059 /* 31# CAN2_TX    */
+            MX6UL_PAD_UART2_RTS_B__GPIO1_IO23    0x17059 /* 33# CAN2_RX    */
+            MX6UL_PAD_SNVS_TAMPER1__GPIO5_IO01    0x17059 /* 35#    GPIO    */
+            MX6UL_PAD_SNVS_TAMPER8__GPIO5_IO08    0x17059 /* 37#    GPIO    */
+            MX6UL_PAD_UART2_TX_DATA__GPIO1_IO20 0x17059 /* 8# UART2_TX */
+            MX6UL_PAD_UART2_RX_DATA__GPIO1_IO21 0x17059 /* 10# UART2_RX */
+            MX6UL_PAD_UART3_RX_DATA__GPIO1_IO25 0x17059 /* 12# UART3_RX */
+            MX6UL_PAD_LCD_DATA16__GPIO3_IO21    0x17059 /* 16# UART7_TX */
+            MX6UL_PAD_LCD_DATA17__GPIO3_IO22    0x17059 /* 18# UART7_RX */
+            MX6UL_PAD_LCD_DATA18__GPIO3_IO23    0x17059 /* 22# GPIO        */
+            MX6UL_PAD_LCD_DATA21__GPIO3_IO26    0x17059 /* 24# SPI1_SS0 */
+            MX6UL_PAD_LCD_DATA19__GPIO3_IO24    0x17059 /* 26# GPIO        */
+            MX6UL_PAD_JTAG_TRST_B__GPIO1_IO15    0x17059 /* 28# PWM8        */
+            MX6UL_PAD_JTAG_TCK__GPIO1_IO14        0x17059 /* 32# PWM7        */
+            MX6UL_PAD_JTAG_TMS__GPIO1_IO11        0x17059 /* 36# GPIO */
+            MX6UL_PAD_JTAG_MOD__GPIO1_IO10        0x17059 /* 38# GPIO */
+            MX6UL_PAD_SNVS_TAMPER9__GPIO5_IO09    0x17059 /* 40# GPIO */
+        >;
+    };
 
     pinctrl_csi1: csi1grp {
         fsl,pins = <
@@ -312,6 +352,7 @@
             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 /* ENET1 RESET */
         >;
     };
 
@@ -327,6 +368,7 @@
             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 /* ENET2 RESET */
         >;
     };
 
@@ -383,14 +425,6 @@
             MX6UL_PAD_LCD_DATA13__LCDIF_DATA13  0x79
             MX6UL_PAD_LCD_DATA14__LCDIF_DATA14  0x79
             MX6UL_PAD_LCD_DATA15__LCDIF_DATA15  0x79
-            MX6UL_PAD_LCD_DATA16__LCDIF_DATA16  0x79
-            MX6UL_PAD_LCD_DATA17__LCDIF_DATA17  0x79
-            MX6UL_PAD_LCD_DATA18__LCDIF_DATA18  0x79
-            MX6UL_PAD_LCD_DATA19__LCDIF_DATA19  0x79
-            MX6UL_PAD_LCD_DATA20__LCDIF_DATA20  0x79
-            MX6UL_PAD_LCD_DATA21__LCDIF_DATA21  0x79
-            MX6UL_PAD_LCD_DATA22__LCDIF_DATA22  0x79
-            MX6UL_PAD_LCD_DATA23__LCDIF_DATA23  0x79
         >;
     };
 
@@ -423,7 +457,6 @@
             MX6UL_PAD_JTAG_TRST_B__SAI2_TX_DATA    0x11088
             MX6UL_PAD_JTAG_TCK__SAI2_RX_DATA    0x11088
             MX6UL_PAD_JTAG_TMS__SAI2_MCLK        0x17088
-            MX6UL_PAD_SNVS_TAMPER4__GPIO5_IO04    0x17059
         >;
     };
 
@@ -448,7 +481,6 @@
         fsl,pins = <
             MX6UL_PAD_BOOT_MODE0__GPIO5_IO10    0x70a1
             MX6UL_PAD_BOOT_MODE1__GPIO5_IO11    0x70a1
-            MX6UL_PAD_SNVS_TAMPER7__GPIO5_IO07    0x70a1
             MX6UL_PAD_SNVS_TAMPER8__GPIO5_IO08    0x80000000
         >;
     };
diff -Nuar -x lingyun.bmp uboot-imx/arch/arm/dts/Makefile uboot-imx-lf-5.15.71-2.2.0/arch/arm/dts/Makefile
--- uboot-imx/arch/arm/dts/Makefile    2023-03-01 18:01:20.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/arch/arm/dts/Makefile    2023-03-02 20:11:56.384857556 +0800
@@ -871,6 +871,7 @@
     imx6ull-kontron-n641x-s.dtb
 
 dtb-$(CONFIG_MX6ULL) += \
+    igkboard.dtb \
     imx6ull-14x14-ddr3-val.dtb \
     imx6ull-14x14-ddr3-val-epdc.dtb \
     imx6ull-14x14-ddr3-val-emmc.dtb \
diff -Nuar -x lingyun.bmp uboot-imx/arch/arm/mach-imx/mx6/Kconfig uboot-imx-lf-5.15.71-2.2.0/arch/arm/mach-imx/mx6/Kconfig
--- uboot-imx/arch/arm/mach-imx/mx6/Kconfig    2023-03-01 18:01:20.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/arch/arm/mach-imx/mx6/Kconfig    2023-03-02 20:14:06.865807204 +0800
@@ -157,6 +157,16 @@
     prompt "MX6 board select"
     optional
 
+config TARGET_LINGYUN_IGKBOARD
+    bool "LingYun IoT Gateway Kits Board(IGKBoard)"
+    depends on MX6ULL
+    select BOARD_LATE_INIT
+    select DM
+    select DM_THERMAL
+    select IMX_MODULE_FUSE
+    select OF_SYSTEM_SETUP
+    imply CMD_DM
+
 config TARGET_APALIS_IMX6
     bool "Toradex Apalis iMX6 board"
     depends on MX6Q
@@ -888,5 +898,6 @@
 source "board/warp/Kconfig"
 source "board/BuR/brppt2/Kconfig"
 source "board/out4/o4-imx6ull-nano/Kconfig"
+source "board/lingyun/igkboard/Kconfig"
 
 endif
diff -Nuar -x lingyun.bmp uboot-imx/board/lingyun/igkboard/igkboard.c uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/igkboard.c
--- uboot-imx/board/lingyun/igkboard/igkboard.c    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/igkboard.c    2023-03-02 20:28:03.937789717 +0800
@@ -0,0 +1,376 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ */
+
+#include <init.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/global_data.h>
+#include <asm/gpio.h>
+#include <asm/mach-imx/iomux-v3.h>
+#include <asm/mach-imx/boot_mode.h>
+#include <asm/mach-imx/mxc_i2c.h>
+#include <asm/io.h>
+#include <common.h>
+#include <env.h>
+#include <fsl_esdhc_imx.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <linux/sizes.h>
+#include <linux/delay.h>
+#include <mmc.h>
+#include <miiphy.h>
+#include <power/pmic.h>
+#include <power/pfuze3000_pmic.h>
+#include "../../freescale/common/pfuze.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |        \
+    PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |        \
+    PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define I2C_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE |            \
+    PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
+    PAD_CTL_DSE_40ohm | PAD_CTL_HYS |            \
+    PAD_CTL_ODE)
+
+#define LCD_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
+    PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm)
+
+#define GPMI_PAD_CTRL0 (PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_100K_UP)
+#define GPMI_PAD_CTRL1 (PAD_CTL_DSE_40ohm | PAD_CTL_SPEED_MED | \
+            PAD_CTL_SRE_FAST)
+#define GPMI_PAD_CTRL2 (GPMI_PAD_CTRL0 | GPMI_PAD_CTRL1)
+
+
+#ifdef CONFIG_DM_PMIC
+int power_init_board(void)
+{
+    struct udevice *dev;
+    int ret, dev_id, rev_id;
+    unsigned int reg;
+
+    ret = pmic_get("pfuze3000@8", &dev);
+    if (ret == -ENODEV)
+        return 0;
+    if (ret != 0)
+        return ret;
+
+    dev_id = pmic_reg_read(dev, PFUZE3000_DEVICEID);
+    rev_id = pmic_reg_read(dev, PFUZE3000_REVID);
+    printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id);
+
+    /* disable Low Power Mode during standby mode */
+    reg = pmic_reg_read(dev, PFUZE3000_LDOGCTL);
+    reg |= 0x1;
+    pmic_reg_write(dev, PFUZE3000_LDOGCTL, reg);
+
+    /* SW1B step ramp up time from 2us to 4us/25mV */
+    pmic_reg_write(dev, PFUZE3000_SW1BCONF, 0x40);
+
+    /* SW1B mode to APS/PFM */
+    pmic_reg_write(dev, PFUZE3000_SW1BMODE, 0xc);
+
+    /* SW1B standby voltage set to 0.975V */
+    pmic_reg_write(dev, PFUZE3000_SW1BSTBY, 0xb);
+
+    return 0;
+}
+
+#ifdef CONFIG_LDO_BYPASS_CHECK
+void ldo_mode_set(int ldo_bypass)
+{
+    unsigned int value;
+    u32 vddarm;
+    struct udevice *dev;
+    int ret;
+
+    ret = pmic_get("pfuze3000@8", &dev);
+    if (ret == -ENODEV) {
+        printf("No PMIC found!\n");
+        return;
+    }
+
+    /* switch to ldo_bypass mode */
+    if (ldo_bypass) {
+        prep_anatop_bypass();
+        /* decrease VDDARM to 1.275V */
+        value = pmic_reg_read(dev, PFUZE3000_SW1BVOLT);
+        value &= ~0x1f;
+        value |= PFUZE3000_SW1AB_SETP(12750);
+        pmic_reg_write(dev, PFUZE3000_SW1BVOLT, value);
+
+        set_anatop_bypass(1);
+        vddarm = PFUZE3000_SW1AB_SETP(11750);
+
+        value = pmic_reg_read(dev, PFUZE3000_SW1BVOLT);
+        value &= ~0x1f;
+        value |= vddarm;
+        pmic_reg_write(dev, PFUZE3000_SW1BVOLT, value);
+
+        finish_anatop_bypass();
+
+        printf("switch to ldo_bypass mode!\n");
+    }
+}
+#endif
+#endif
+
+int dram_init(void)
+{
+    gd->ram_size = imx_ddr_size();
+
+    return 0;
+}
+
+static iomux_v3_cfg_t const uart1_pads[] = {
+    MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
+    MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+    imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+}
+
+#ifdef CONFIG_FSL_QSPI
+
+#ifndef CONFIG_DM_SPI
+#define QSPI_PAD_CTRL1    \
+    (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \
+     PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_120ohm)
+
+static iomux_v3_cfg_t const quadspi_pads[] = {
+    MX6_PAD_NAND_WP_B__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+    MX6_PAD_NAND_READY_B__QSPI_A_DATA00 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+    MX6_PAD_NAND_CE0_B__QSPI_A_DATA01 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+    MX6_PAD_NAND_CE1_B__QSPI_A_DATA02 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+    MX6_PAD_NAND_CLE__QSPI_A_DATA03 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+    MX6_PAD_NAND_DQS__QSPI_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
+};
+#endif
+
+static int board_qspi_init(void)
+{
+#ifndef CONFIG_DM_SPI
+    /* Set the iomux */
+    imx_iomux_v3_setup_multiple_pads(quadspi_pads,
+                     ARRAY_SIZE(quadspi_pads));
+#endif
+    /* Set the clock */
+    enable_qspi_clk(0);
+
+    return 0;
+}
+#endif
+
+#ifdef CONFIG_NAND_MXS
+static iomux_v3_cfg_t const nand_pads[] = {
+    MX6_PAD_NAND_DATA00__RAWNAND_DATA00 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_DATA01__RAWNAND_DATA01 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_DATA02__RAWNAND_DATA02 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_DATA03__RAWNAND_DATA03 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_DATA04__RAWNAND_DATA04 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_DATA05__RAWNAND_DATA05 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_DATA06__RAWNAND_DATA06 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_DATA07__RAWNAND_DATA07 | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_CLE__RAWNAND_CLE | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_ALE__RAWNAND_ALE | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_CE0_B__RAWNAND_CE0_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_CE1_B__RAWNAND_CE1_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_RE_B__RAWNAND_RE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_WE_B__RAWNAND_WE_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_WP_B__RAWNAND_WP_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_READY_B__RAWNAND_READY_B | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+    MX6_PAD_NAND_DQS__RAWNAND_DQS | MUX_PAD_CTRL(GPMI_PAD_CTRL2),
+};
+
+static void setup_gpmi_nand(void)
+{
+    struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+    /* config gpmi nand iomux */
+    imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
+
+    setup_gpmi_io_clk((MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
+            MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
+            MXC_CCM_CS2CDR_ENFC_CLK_SEL(3)));
+
+    /* enable apbh clock gating */
+    setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
+}
+#endif
+
+#ifdef CONFIG_FEC_MXC
+static int setup_fec(void)
+{
+    struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
+    int ret;
+
+    /*
+     * Use 50M anatop loopback REF_CLK1 for ENET1,
+     * clear gpr1[13], set gpr1[17].
+     */
+    clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
+            IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
+    /*
+     * Use 50M anatop loopback REF_CLK2 for ENET2,
+     * clear gpr1[14], set gpr1[18].
+     */
+    if (!check_module_fused(MODULE_ENET2)) {
+        clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
+                IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
+    }
+
+    ret = enable_fec_anatop_clock(0, ENET_50MHZ);
+    if (ret)
+        return ret;
+
+    if (!check_module_fused(MODULE_ENET2)) {
+        ret = enable_fec_anatop_clock(1, ENET_50MHZ);
+        if (ret)
+            return ret;
+    }
+
+    enable_enet_clk(1);
+
+    return 0;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+    phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
+
+    if (phydev->drv->config)
+        phydev->drv->config(phydev);
+
+    return 0;
+}
+#endif
+
+#ifdef CONFIG_DM_VIDEO
+static iomux_v3_cfg_t const lcd_pads[] = {
+    /* Use GPIO for Brightness adjustment, duty cycle = period. */
+    MX6_PAD_GPIO1_IO08__GPIO1_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static int setup_lcd(void)
+{
+    enable_lcdif_clock(LCDIF1_BASE_ADDR, 1);
+
+    imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
+
+    /* Reset the LCD */
+    gpio_request(IMX_GPIO_NR(5, 9), "lcd reset");
+    gpio_direction_output(IMX_GPIO_NR(5, 9) , 0);
+    udelay(500);
+    gpio_direction_output(IMX_GPIO_NR(5, 9) , 1);
+
+    /* Set Brightness to high */
+    gpio_request(IMX_GPIO_NR(1, 8), "backlight");
+    gpio_direction_output(IMX_GPIO_NR(1, 8) , 1);
+
+    return 0;
+}
+#else
+static inline int setup_lcd(void) { return 0; }
+#endif
+
+int board_early_init_f(void)
+{
+    setup_iomux_uart();
+
+    return 0;
+}
+
+int board_init(void)
+{
+    /* Address of boot parameters */
+    gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+#ifdef    CONFIG_FEC_MXC
+    setup_fec();
+#endif
+
+#ifdef CONFIG_FSL_QSPI
+    board_qspi_init();
+#endif
+
+#ifdef CONFIG_NAND_MXS
+    setup_gpmi_nand();
+#endif
+
+    return 0;
+}
+
+#ifdef CONFIG_CMD_BMODE
+static const struct boot_mode board_boot_modes[] = {
+    /* 4 bit bus width */
+    {"sd1", MAKE_CFGVAL(0x42, 0x20, 0x00, 0x00)},
+    {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
+    {"qspi1", MAKE_CFGVAL(0x10, 0x00, 0x00, 0x00)},
+    {NULL,     0},
+};
+#endif
+
+int board_late_init(void)
+{
+#ifdef CONFIG_CMD_BMODE
+    add_board_boot_modes(board_boot_modes);
+#endif
+
+    env_set("tee", "no");
+#ifdef CONFIG_IMX_OPTEE
+    env_set("tee", "yes");
+#endif
+
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+    env_set("board_name", "EVK");
+
+    if (is_mx6ull_9x9_evk())
+        env_set("board_rev", "9X9");
+    else
+        env_set("board_rev", "14X14");
+
+    if (is_cpu_type(MXC_CPU_MX6ULZ)) {
+        env_set("board_name", "ULZ-EVK");
+        env_set("usb_net_cmd", "usb start");
+    }
+#endif
+
+    setup_lcd();
+
+#ifdef CONFIG_ENV_IS_IN_MMC
+    board_late_mmc_env_init();
+#endif
+
+    set_wdog_reset((struct wdog_regs *)WDOG1_BASE_ADDR);
+
+    return 0;
+}
+
+int checkboard(void)
+{
+    if (is_mx6ull_9x9_evk())
+        puts("Board: MX6ULL 9x9 EVK\n");
+    else if (is_cpu_type(MXC_CPU_MX6ULZ))
+        puts("Board: MX6ULZ 14x14 EVK\n");
+    else
+        puts("Board: IGKBoard\n\n");
+
+    return 0;
+}
+
+void board_quiesce_devices(void)
+{
+#if defined(CONFIG_VIDEO_MXS)
+    enable_lcdif_clock(LCDIF1_BASE_ADDR, 0);
+#endif
+}
diff -Nuar -x lingyun.bmp uboot-imx/board/lingyun/igkboard/imximage.cfg uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/imximage.cfg
--- uboot-imx/board/lingyun/igkboard/imximage.cfg    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/imximage.cfg    2023-03-02 19:25:38.538134223 +0800
@@ -0,0 +1,120 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ *
+ * Refer doc/imx/mkimage/imximage.txt for more details about how-to configure
+ * and create imximage boot image
+ *
+ * The syntax is taken as close as possible with the kwbimage
+ */
+
+#include <config.h>
+
+/* image version */
+
+IMAGE_VERSION 2
+
+/*
+ * Boot Device : one of
+ * spi/sd/nand/onenand, qspi/nor
+ */
+
+#ifdef CONFIG_QSPI_BOOT
+BOOT_FROM    qspi
+#elif defined(CONFIG_NOR_BOOT)
+BOOT_FROM    nor
+#else
+BOOT_FROM    sd
+#endif
+
+#ifdef CONFIG_USE_IMXIMG_PLUGIN
+/*PLUGIN    plugin-binary-file    IRAM_FREE_START_ADDR*/
+PLUGIN    board/freescale/mx6ullevk/plugin.bin 0x00907000
+#else
+
+#ifdef CONFIG_IMX_HAB
+CSF CONFIG_CSF_SIZE
+#endif
+
+/*
+ * Device Configuration Data (DCD)
+ *
+ * Each entry must have the format:
+ * Addr-type           Address        Value
+ *
+ * where:
+ *    Addr-type register length (1,2 or 4 bytes)
+ *    Address      absolute address of the register
+ *    value      value to be stored in the register
+ */
+
+/* Enable all clocks */
+DATA 4 0x020c4068 0xffffffff
+DATA 4 0x020c406c 0xffffffff
+DATA 4 0x020c4070 0xffffffff
+DATA 4 0x020c4074 0xffffffff
+DATA 4 0x020c4078 0xffffffff
+DATA 4 0x020c407c 0xffffffff
+DATA 4 0x020c4080 0xffffffff
+
+#ifdef CONFIG_IMX_OPTEE
+DATA 4 0x20e4024 0x00000001
+CHECK_BITS_SET 4 0x20e4024 0x1
+#endif
+
+DATA 4 0x020E04B4 0x000C0000
+DATA 4 0x020E04AC 0x00000000
+DATA 4 0x020E027C 0x00000030
+DATA 4 0x020E0250 0x00000030
+DATA 4 0x020E024C 0x00000030
+DATA 4 0x020E0490 0x00000030
+DATA 4 0x020E0288 0x000C0030
+DATA 4 0x020E0270 0x00000000
+DATA 4 0x020E0260 0x00000030
+DATA 4 0x020E0264 0x00000030
+DATA 4 0x020E04A0 0x00000030
+DATA 4 0x020E0494 0x00020000
+DATA 4 0x020E0280 0x00000030
+DATA 4 0x020E0284 0x00000030
+DATA 4 0x020E04B0 0x00020000
+DATA 4 0x020E0498 0x00000030
+DATA 4 0x020E04A4 0x00000030
+DATA 4 0x020E0244 0x00000030
+DATA 4 0x020E0248 0x00000030
+DATA 4 0x021B001C 0x00008000
+DATA 4 0x021B0800 0xA1390003
+DATA 4 0x021B080C 0x00000004
+DATA 4 0x021B083C 0x41640158
+DATA 4 0x021B0848 0x40403237
+DATA 4 0x021B0850 0x40403C33
+DATA 4 0x021B081C 0x33333333
+DATA 4 0x021B0820 0x33333333
+DATA 4 0x021B082C 0xf3333333
+DATA 4 0x021B0830 0xf3333333
+DATA 4 0x021B08C0 0x00944009
+DATA 4 0x021B08b8 0x00000800
+DATA 4 0x021B0004 0x0002002D
+DATA 4 0x021B0008 0x1B333030
+DATA 4 0x021B000C 0x676B52F3
+DATA 4 0x021B0010 0xB66D0B63
+DATA 4 0x021B0014 0x01FF00DB
+DATA 4 0x021B0018 0x00201740
+DATA 4 0x021B001C 0x00008000
+DATA 4 0x021B002C 0x000026D2
+DATA 4 0x021B0030 0x006B1023
+DATA 4 0x021B0040 0x0000004F
+DATA 4 0x021B0000 0x84180000
+DATA 4 0x021B0890 0x00400000
+DATA 4 0x021B001C 0x02008032
+DATA 4 0x021B001C 0x00008033
+DATA 4 0x021B001C 0x00048031
+DATA 4 0x021B001C 0x15208030
+DATA 4 0x021B001C 0x04008040
+DATA 4 0x021B0020 0x00000800
+DATA 4 0x021B0818 0x00000227
+DATA 4 0x021B0004 0x0002552D
+DATA 4 0x021B0404 0x00011006
+DATA 4 0x021B001C 0x00000000
+
+#endif
diff -Nuar -x lingyun.bmp uboot-imx/board/lingyun/igkboard/imximage_lpddr2.cfg uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/imximage_lpddr2.cfg
--- uboot-imx/board/lingyun/igkboard/imximage_lpddr2.cfg    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/imximage_lpddr2.cfg    2023-03-02 19:27:04.828095866 +0800
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ *
+ * Refer docs/README.imxmage for more details about how-to configure
+ * and create imximage boot image
+ *
+ * The syntax is taken as close as possible with the kwbimage
+ */
+
+#include <config.h>
+
+/* image version */
+
+IMAGE_VERSION 2
+
+/*
+ * Boot Device : one of
+ * spi/sd/nand/onenand, qspi/nor
+ */
+
+#ifdef CONFIG_QSPI_BOOT
+BOOT_FROM    qspi
+#elif defined(CONFIG_NOR_BOOT)
+BOOT_FROM    nor
+#else
+BOOT_FROM    sd
+#endif
+
+#ifdef CONFIG_USE_IMXIMG_PLUGIN
+/*PLUGIN    plugin-binary-file    IRAM_FREE_START_ADDR*/
+PLUGIN    board/lingyun/igkboard/plugin.bin 0x00907000
+#else
+
+#ifdef CONFIG_IMX_HAB
+CSF CONFIG_CSF_SIZE
+#endif
+
+/*
+ * Device Configuration Data (DCD)
+ *
+ * Each entry must have the format:
+ * Addr-type           Address        Value
+ *
+ * where:
+ *    Addr-type register length (1,2 or 4 bytes)
+ *    Address      absolute address of the register
+ *    value      value to be stored in the register
+ */
+
+DATA 4 0x020c4068 0xffffffff
+DATA 4 0x020c406c 0xffffffff
+DATA 4 0x020c4070 0xffffffff
+DATA 4 0x020c4074 0xffffffff
+DATA 4 0x020c4078 0xffffffff
+DATA 4 0x020c407c 0xffffffff
+DATA 4 0x020c4080 0xffffffff
+
+#ifdef CONFIG_IMX_OPTEE
+DATA 4 0x20e4024 0x00000001
+CHECK_BITS_SET 4 0x20e4024 0x1
+#endif
+
+DATA 4 0x020E04B4 0x00080000
+DATA 4 0x020E04AC 0x00000000
+DATA 4 0x020E027C 0x00000030
+DATA 4 0x020E0250 0x00000030
+DATA 4 0x020E024C 0x00000030
+DATA 4 0x020E0490 0x00000030
+DATA 4 0x020E0288 0x00000030
+DATA 4 0x020E0270 0x00000000
+DATA 4 0x020E0260 0x00000000
+DATA 4 0x020E0264 0x00000000
+DATA 4 0x020E04A0 0x00000030
+DATA 4 0x020E0494 0x00020000
+DATA 4 0x020E0280 0x00003030
+DATA 4 0x020E0284 0x00003030
+DATA 4 0x020E04B0 0x00020000
+DATA 4 0x020E0498 0x00000030
+DATA 4 0x020E04A4 0x00000030
+DATA 4 0x020E0244 0x00000030
+DATA 4 0x020E0248 0x00000030
+
+DATA 4 0x021B001C 0x00008000
+DATA 4 0x021B085C 0x1b4700c7
+DATA 4 0x021B0800 0xA1390003
+DATA 4 0x021B0890 0x23400A38
+DATA 4 0x021B08b8 0x00000800
+
+DATA 4 0x021B081C 0x33333333
+DATA 4 0x021B0820 0x33333333
+DATA 4 0x021B082C 0xf3333333
+DATA 4 0x021B0830 0xf3333333
+DATA 4 0x021B083C 0x20000000
+DATA 4 0x021B0848 0x40403439
+DATA 4 0x021B0850 0x4040342D
+DATA 4 0x021B08C0 0x00921012
+DATA 4 0x021B08b8 0x00000800
+
+DATA 4 0x021B0004 0x00020052
+DATA 4 0x021B0008 0x00000000
+DATA 4 0x021B000C 0x33374133
+DATA 4 0x021B0010 0x00100A82
+DATA 4 0x021B0038 0x00170557
+DATA 4 0x021B0014 0x00000093
+DATA 4 0x021B0018 0x00201748
+DATA 4 0x021B002C 0x0F9F26D2
+DATA 4 0x021B0030 0x009F0010
+DATA 4 0x021B0040 0x00000047
+DATA 4 0x021B0000 0x83100000
+DATA 4 0x021B001C 0x00008010
+DATA 4 0x021B001C 0x003F8030
+DATA 4 0x021B001C 0xFF0A8030
+DATA 4 0x021B001C 0x82018030
+DATA 4 0x021B001C 0x04028030
+DATA 4 0x021B001C 0x01038030
+DATA 4 0x021B0020 0x00001800
+DATA 4 0x021B0818 0x00000000
+DATA 4 0x021B0800 0xA1310003
+DATA 4 0x021B0004 0x00025552
+DATA 4 0x021B0404 0x00011006
+DATA 4 0x021B001C 0x00000000
+#endif
diff -Nuar -x lingyun.bmp uboot-imx/board/lingyun/igkboard/Kconfig uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/Kconfig
--- uboot-imx/board/lingyun/igkboard/Kconfig    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/Kconfig    2023-03-02 19:38:06.119611122 +0800
@@ -0,0 +1,14 @@
+if TARGET_LINGYUN_IGKBOARD
+
+config SYS_BOARD
+    default "igkboard"
+
+config SYS_VENDOR
+    default "lingyun"
+
+config SYS_CONFIG_NAME
+    default "igkboard"
+
+config SYS_TEXT_BASE
+    default 0x87800000
+endif
diff -Nuar -x lingyun.bmp uboot-imx/board/lingyun/igkboard/MAINTAINERS uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/MAINTAINERS
--- uboot-imx/board/lingyun/igkboard/MAINTAINERS    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/MAINTAINERS    2023-03-02 19:31:23.110034004 +0800
@@ -0,0 +1,7 @@
+LingYun IoT Gateway Board(IGKBoard)
+M:    Guo Wenxue <guowenxue@gmail.com>
+S:    Maintained
+F:    board/lingyun/igkboard/
+F:    include/configs/igkboard.h
+F:    configs/igkboard_defconfig
+
diff -Nuar -x lingyun.bmp uboot-imx/board/lingyun/igkboard/Makefile uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/Makefile
--- uboot-imx/board/lingyun/igkboard/Makefile    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/Makefile    2023-03-02 19:34:14.062045206 +0800
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+# (C) Copyright 2016 Freescale Semiconductor, Inc.
+
+obj-y  := igkboard.o
+obj-y  += ../../freescale/common/mmc.o
diff -Nuar -x lingyun.bmp uboot-imx/board/lingyun/igkboard/plugin.S uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/plugin.S
--- uboot-imx/board/lingyun/igkboard/plugin.S    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/board/lingyun/igkboard/plugin.S    2023-03-02 19:25:38.542134128 +0800
@@ -0,0 +1,263 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ */
+
+#include <config.h>
+
+/* DDR script */
+.macro imx6ull_ddr3_evk_setting
+    ldr r0, =IOMUXC_BASE_ADDR
+    ldr r1, =0x000C0000
+    str r1, [r0, #0x4B4]
+    ldr r1, =0x00000000
+    str r1, [r0, #0x4AC]
+    ldr r1, =0x00000030
+    str r1, [r0, #0x27C]
+    ldr r1, =0x00000030
+    str r1, [r0, #0x250]
+    str r1, [r0, #0x24C]
+    str r1, [r0, #0x490]
+    ldr r1, =0x000C0030
+    str r1, [r0, #0x288]
+
+    ldr r1, =0x00000000
+    str r1, [r0, #0x270]
+
+    ldr r1, =0x00000030
+    str r1, [r0, #0x260]
+    str r1, [r0, #0x264]
+    str r1, [r0, #0x4A0]
+
+    ldr r1, =0x00020000
+    str r1, [r0, #0x494]
+
+    ldr r1, =0x00000030
+    str r1, [r0, #0x280]
+    ldr r1, =0x00000030
+    str r1, [r0, #0x284]
+
+    ldr r1, =0x00020000
+    str r1, [r0, #0x4B0]
+
+    ldr r1, =0x00000030
+    str r1, [r0, #0x498]
+    str r1, [r0, #0x4A4]
+    str r1, [r0, #0x244]
+    str r1, [r0, #0x248]
+
+    ldr r0, =MMDC_P0_BASE_ADDR
+    ldr r1, =0x00008000
+    str r1, [r0, #0x1C]
+    ldr r1, =0xA1390003
+    str r1, [r0, #0x800]
+    ldr r1, =0x00000004
+    str r1, [r0, #0x80C]
+    ldr r1, =0x41640158
+    str r1, [r0, #0x83C]
+    ldr r1, =0x40403237
+    str r1, [r0, #0x848]
+    ldr r1, =0x40403C33
+    str r1, [r0, #0x850]
+    ldr r1, =0x33333333
+    str r1, [r0, #0x81C]
+    str r1, [r0, #0x820]
+    ldr r1, =0xF3333333
+    str r1, [r0, #0x82C]
+    str r1, [r0, #0x830]
+    ldr r1, =0x00944009
+    str r1, [r0, #0x8C0]
+    ldr r1, =0x00000800
+    str r1, [r0, #0x8B8]
+    ldr r1, =0x0002002D
+    str r1, [r0, #0x004]
+    ldr r1, =0x1B333030
+    str r1, [r0, #0x008]
+    ldr r1, =0x676B52F3
+    str r1, [r0, #0x00C]
+    ldr r1, =0xB66D0B63
+    str r1, [r0, #0x010]
+    ldr r1, =0x01FF00DB
+    str r1, [r0, #0x014]
+    ldr r1, =0x00201740
+    str r1, [r0, #0x018]
+    ldr r1, =0x00008000
+    str r1, [r0, #0x01C]
+    ldr r1, =0x000026D2
+    str r1, [r0, #0x02C]
+    ldr r1, =0x006B1023
+    str r1, [r0, #0x030]
+    ldr r1, =0x0000004F
+    str r1, [r0, #0x040]
+    ldr r1, =0x84180000
+    str r1, [r0, #0x000]
+    ldr r1, =0x00400000
+    str r1, [r0, #0x890]
+    ldr r1, =0x02008032
+    str r1, [r0, #0x01C]
+    ldr r1, =0x00008033
+    str r1, [r0, #0x01C]
+    ldr r1, =0x00048031
+    str r1, [r0, #0x01C]
+    ldr r1, =0x15208030
+    str r1, [r0, #0x01C]
+    ldr r1, =0x04008040
+    str r1, [r0, #0x01C]
+    ldr r1, =0x00000800
+    str r1, [r0, #0x020]
+    ldr r1, =0x00000227
+    str r1, [r0, #0x818]
+    ldr r1, =0x0002552D
+    str r1, [r0, #0x004]
+    ldr r1, =0x00011006
+    str r1, [r0, #0x404]
+    ldr r1, =0x00000000
+    str r1, [r0, #0x01C]
+.endm
+
+.macro imx6ull_lpddr2_evk_setting
+    ldr r0, =IOMUXC_BASE_ADDR
+    ldr r1, =0x00080000
+    str r1, [r0, #0x4B4]
+    ldr r1, =0x00000000
+    str r1, [r0, #0x4AC]
+    ldr r1, =0x00000030
+    str r1, [r0, #0x27C]
+    str r1, [r0, #0x250]
+    str r1, [r0, #0x24C]
+    str r1, [r0, #0x490]
+    str r1, [r0, #0x288]
+
+    ldr r1, =0x00000000
+    str r1, [r0, #0x270]
+    str r1, [r0, #0x260]
+    str r1, [r0, #0x264]
+
+    ldr r1, =0x00000030
+    str r1, [r0, #0x4A0]
+
+    ldr r1, =0x00020000
+    str r1, [r0, #0x494]
+
+    ldr r1, =0x00003030
+    str r1, [r0, #0x280]
+    ldr r1, =0x00003030
+    str r1, [r0, #0x284]
+
+    ldr r1, =0x00020000
+    str r1, [r0, #0x4B0]
+
+    ldr r1, =0x00000030
+    str r1, [r0, #0x498]
+    str r1, [r0, #0x4A4]
+    str r1, [r0, #0x244]
+    str r1, [r0, #0x248]
+
+    ldr r0, =MMDC_P0_BASE_ADDR
+    ldr r1, =0x00008000
+    str r1, [r0, #0x1C]
+    ldr r1, =0x1b4700c7
+    str r1, [r0, #0x85c]
+    ldr r1, =0xA1390003
+    str r1, [r0, #0x800]
+    ldr r1, =0x23400A38
+    str r1, [r0, #0x890]
+    ldr r1, =0x00000800
+    str r1, [r0, #0x8b8]
+    ldr r1, =0x33333333
+    str r1, [r0, #0x81C]
+    str r1, [r0, #0x820]
+    ldr r1, =0xF3333333
+    str r1, [r0, #0x82C]
+    str r1, [r0, #0x830]
+    ldr r1, =0x20000000
+    str r1, [r0, #0x83C]
+    ldr r1, =0x40403439
+    str r1, [r0, #0x848]
+    ldr r1, =0x4040342D
+    str r1, [r0, #0x850]
+    ldr r1, =0x00921012
+    str r1, [r0, #0x8C0]
+    ldr r1, =0x00000800
+    str r1, [r0, #0x8B8]
+
+    ldr r1, =0x00020052
+    str r1, [r0, #0x004]
+    ldr r1, =0x00000000
+    str r1, [r0, #0x008]
+    ldr r1, =0x33374133
+    str r1, [r0, #0x00C]
+    ldr r1, =0x00100A82
+    str r1, [r0, #0x010]
+    ldr r1, =0x00170557
+    str r1, [r0, #0x038]
+    ldr r1, =0x00000093
+    str r1, [r0, #0x014]
+    ldr r1, =0x00201748
+    str r1, [r0, #0x018]
+    ldr r1, =0x0F9F26D2
+    str r1, [r0, #0x02C]
+    ldr r1, =0x009F0010
+    str r1, [r0, #0x030]
+    ldr r1, =0x00000047
+    str r1, [r0, #0x040]
+    ldr r1, =0x83100000
+    str r1, [r0, #0x000]
+    ldr r1, =0x00008010
+    str r1, [r0, #0x01C]
+    ldr r1, =0x003F8030
+    str r1, [r0, #0x01C]
+    ldr r1, =0xFF0A8030
+    str r1, [r0, #0x01C]
+    ldr r1, =0x82018030
+    str r1, [r0, #0x01C]
+    ldr r1, =0x04028030
+    str r1, [r0, #0x01C]
+    ldr r1, =0x01038030
+    str r1, [r0, #0x01C]
+    ldr r1, =0x00001800
+    str r1, [r0, #0x020]
+    ldr r1, =0x00000000
+    str r1, [r0, #0x818]
+    ldr r1, =0xA1310003
+    str r1, [r0, #0x800]
+    ldr r1, =0x00025552
+    str r1, [r0, #0x004]
+    ldr r1, =0x00011006
+    str r1, [r0, #0x404]
+    ldr r1, =0x00000000
+    str r1, [r0, #0x01C]
+.endm
+
+.macro imx6_clock_gating
+    ldr r0, =CCM_BASE_ADDR
+    ldr r1, =0xFFFFFFFF
+    str r1, [r0, #0x68]
+    str r1, [r0, #0x6C]
+    str r1, [r0, #0x70]
+    str r1, [r0, #0x74]
+    str r1, [r0, #0x78]
+    str r1, [r0, #0x7C]
+    str r1, [r0, #0x80]
+
+#ifdef CONFIG_IMX_OPTEE
+    ldr r0, =0x20e4024
+    ldr r1, =0x1
+    str r1, [r0]
+#endif
+.endm
+
+.macro imx6_qos_setting
+.endm
+
+.macro imx6_ddr_setting
+#if defined (CONFIG_TARGET_MX6ULL_9X9_EVK)
+    imx6ull_lpddr2_evk_setting
+#else
+    imx6ull_ddr3_evk_setting
+#endif
+.endm
+
+/* include the common plugin code here */
+#include <asm/arch/mx6_plugin.S>
diff -Nuar -x lingyun.bmp uboot-imx/configs/igkboard_defconfig uboot-imx-lf-5.15.71-2.2.0/configs/igkboard_defconfig
--- uboot-imx/configs/igkboard_defconfig    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/configs/igkboard_defconfig    2023-03-02 20:35:18.243274052 +0800
@@ -0,0 +1,113 @@
+CONFIG_ARM=y
+CONFIG_ARCH_MX6=y
+CONFIG_SYS_MALLOC_LEN=0x1000000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_SYS_MEMTEST_START=0x80000000
+CONFIG_SYS_MEMTEST_END=0x88000000
+CONFIG_ENV_SIZE=0x2000
+CONFIG_ENV_OFFSET=0xE0000
+CONFIG_IMX_CONFIG="board/lingyun/igkboard/imximage.cfg"
+CONFIG_SYS_PROMPT="[u-boot@igkboard]# "
+CONFIG_MX6ULL=y
+CONFIG_TARGET_LINGYUN_IGKBOARD=y
+CONFIG_SYS_I2C_MXC_I2C1=y
+CONFIG_SYS_I2C_MXC_I2C2=y
+CONFIG_DM_GPIO=y
+CONFIG_DEFAULT_DEVICE_TREE="igkboard"
+CONFIG_SUPPORT_RAW_INITRD=y
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTDELAY=3
+# CONFIG_CONSOLE_MUX is not set
+CONFIG_SYS_CONSOLE_IS_IN_ENV=y
+CONFIG_BOARD_EARLY_INIT_F=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_BOOTZ=y
+# CONFIG_CMD_IMLS is not set
+CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_BMP=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_NET=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_CONTROL=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_SYS_MMC_ENV_DEV=1
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_BOUNCE_BUFFER=y
+CONFIG_DM_74X164=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_MXC=y
+CONFIG_FSL_USDHC=y
+CONFIG_MTD=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SF_DEFAULT_SPEED=40000000
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_PHYLIB=y
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ8XXX=y
+CONFIG_DM_ETH=y
+CONFIG_DM_ETH_PHY=y
+CONFIG_FEC_MXC=y
+CONFIG_MII=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_IMX6=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_MXC_UART=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_FSL_QSPI=y
+CONFIG_SOFT_SPI=y
+CONFIG_IMX_THERMAL=y
+CONFIG_USB=y
+CONFIG_USB_STORAGE=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+CONFIG_USB_HOST_ETHER=y
+CONFIG_USB_ETHER_ASIX=y
+CONFIG_DM_VIDEO=y
+CONFIG_VIDEO_LOGO=y
+CONFIG_SYS_WHITE_ON_BLACK=y
+CONFIG_VIDEO_MXS=y
+CONFIG_SPLASH_SCREEN=y
+CONFIG_SPLASH_SCREEN_ALIGN=y
+CONFIG_BMP_16BPP=y
+
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_USB_GADGET_MANUFACTURER="FSL"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0525
+CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
+CONFIG_CI_UDC=y
+
+CONFIG_CMD_FASTBOOT=y
+CONFIG_USB_FUNCTION_FASTBOOT=y
+CONFIG_FASTBOOT_UUU_SUPPORT=y
+CONFIG_FASTBOOT=y
+CONFIG_FASTBOOT_BUF_ADDR=0x83800000
+CONFIG_FASTBOOT_BUF_SIZE=0x40000000
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_EFI_PARTITION=y
+CONFIG_ARCH_MISC_INIT=y
+CONFIG_DM_RNG=y
+CONFIG_CMD_RNG=y
+CONFIG_FSL_DCP_RNG=y
+CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_CMD_CRC32=y
+CONFIG_CRC32_VERIFY=y
+
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_DM_SERIAL=y 
diff -Nuar -x lingyun.bmp uboot-imx/drivers/fastboot/fb_fsl/fb_fsl_partitions.c uboot-imx-lf-5.15.71-2.2.0/drivers/fastboot/fb_fsl/fb_fsl_partitions.c
--- uboot-imx/drivers/fastboot/fb_fsl/fb_fsl_partitions.c    2023-03-01 18:01:21.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/drivers/fastboot/fb_fsl/fb_fsl_partitions.c    2023-03-02 19:43:57.072457191 +0800
@@ -188,6 +188,11 @@
             user_partition = FASTBOOT_MMC_USER_PARTITION_ID;
             boot_loader_psize = mmc->capacity_boot;
         }
+        /* add by guowenxue to export mmc_no env */
+        env_set_ulong("mmc_no", mmc_no);
+        env_set_ulong("mmcdev", mmc_no);
+        env_set_ulong("emmc_dev", mmc_no);
+        env_set_ulong("emmc_ack", mmc_no);
     } else {
         printf("Can't setup partition table on this device %d\n",
             fastboot_devinfo.type);
diff -Nuar -x lingyun.bmp uboot-imx/drivers/net/phy/phy.c uboot-imx-lf-5.15.71-2.2.0/drivers/net/phy/phy.c
--- uboot-imx/drivers/net/phy/phy.c    2023-03-01 18:01:21.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/drivers/net/phy/phy.c    2023-03-02 19:44:33.731379192 +0800
@@ -182,6 +182,8 @@
 {
     int result;
 
+    phy_reset(phydev);
+
     if (phydev->autoneg != AUTONEG_ENABLE)
         return genphy_setup_forced(phydev);
 
diff -Nuar -x lingyun.bmp uboot-imx/include/configs/igkboard.h uboot-imx-lf-5.15.71-2.2.0/include/configs/igkboard.h
--- uboot-imx/include/configs/igkboard.h    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/include/configs/igkboard.h    2023-03-02 19:51:56.499121509 +0800
@@ -0,0 +1,172 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ *
+ * Configuration settings for the Freescale i.MX6UL 14x14 EVK board.
+ */
+#ifndef __IGKBOARD_CONFIG_H
+#define __IGKBOARD_CONFIG_H
+
+
+#include <asm/arch/imx-regs.h>
+#include <linux/sizes.h>
+#include <linux/stringify.h>
+#include "mx6_common.h"
+#include <asm/mach-imx/gpio.h>
+#include "imx_env.h"
+
+#define is_mx6ull_9x9_evk()    CONFIG_IS_ENABLED(TARGET_MX6ULL_9X9_EVK)
+
+#ifdef CONFIG_TARGET_MX6ULL_9X9_EVK
+#define PHYS_SDRAM_SIZE        SZ_256M
+#define BOOTARGS_CMA_SIZE   "cma=96M "
+#else
+#define PHYS_SDRAM_SIZE        SZ_512M
+#define BOOTARGS_CMA_SIZE   ""
+/* DCDC used on 14x14 EVK, no PMIC */
+#undef CONFIG_LDO_BYPASS_CHECK
+#endif
+
+#define CONFIG_MXC_UART_BASE        UART1_BASE
+
+/* MMC Configs */
+#ifdef CONFIG_FSL_USDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR    USDHC2_BASE_ADDR
+
+/* NAND pin conflicts with usdhc2 */
+#ifdef CONFIG_NAND_MXS
+#define CONFIG_SYS_FSL_USDHC_NUM    1
+#else
+#define CONFIG_SYS_FSL_USDHC_NUM    2
+#endif
+
+#endif
+
+
+#ifdef CONFIG_NAND_BOOT
+#define MFG_NAND_PARTITION "mtdparts=gpmi-nand:64m(nandboot),16m(nandkernel),16m(nanddtb),16m(nandtee),-(nandrootfs)"
+#else
+#define MFG_NAND_PARTITION ""
+#endif
+
+#define CONFIG_CMD_READ
+#define CONFIG_SERIAL_TAG
+#define CONFIG_FASTBOOT_USB_DEV 0
+
+#define CONFIG_MFG_ENV_SETTINGS \
+    CONFIG_MFG_ENV_SETTINGS_DEFAULT \
+    "initrd_addr=0x86800000\0" \
+    "initrd_high=0xffffffff\0" \
+    "emmc_dev=1\0"\
+    "emmc_ack=1\0"\
+    "sd_dev=1\0" \
+    "mtdparts=" MFG_NAND_PARTITION \
+    "\0"\
+
+#if defined(CONFIG_NAND_BOOT)
+#define CONFIG_EXTRA_ENV_SETTINGS \
+    CONFIG_MFG_ENV_SETTINGS \
+    TEE_ENV \
+    "splashimage=0x8c000000\0" \
+    "fdt_addr=0x83000000\0" \
+    "fdt_high=0xffffffff\0"      \
+    "tee_addr=0x84000000\0" \
+    "console=ttymxc0\0" \
+    "bootargs=console=ttymxc0,115200 ubi.mtd=nandrootfs "  \
+        "root=ubi0:rootfs rootfstype=ubifs "             \
+        BOOTARGS_CMA_SIZE \
+        MFG_NAND_PARTITION \
+        "\0" \
+    "bootcmd=nand read ${loadaddr} 0x4000000 0xc00000;"\
+        "nand read ${fdt_addr} 0x5000000 0x100000;"\
+        "if test ${tee} = yes; then " \
+            "nand read ${tee_addr} 0x6000000 0x400000;"\
+            "bootm ${tee_addr} - ${fdt_addr};" \
+        "else " \
+            "bootz ${loadaddr} - ${fdt_addr};" \
+        "fi\0"
+
+#else
+#include "igkboard_overlay.h"
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+    "env_conf=config.txt\0" \
+    "image=zImage\0" \
+    "console=ttymxc0\0" \
+    "fdt_file=igkboard.dtb\0" \
+    "fdt_addr=0x83000000\0" \
+    "splashimage=0x8c000000\0" \
+    "ipaddr=192.168.2.22\0" \
+    "serverip=192.168.2.2\0" \
+    "mmcpart=1\0" \
+    "mmcargs=setenv bootargs console=${console},${baudrate} root=/dev/mmcblk${mmc_no}p2 rootwait rw net.ifnames=0\0" \
+    "loadenvconf=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${env_conf};env import -t ${loadaddr} ${filesize}\0" \
+    "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
+    "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
+    "bdtb=tftp $fdt_addr $fdt_file && fatwrite mmc 1:1 $fdt_addr $fdt_file $filesize\0" \
+    "bker=tftp $loadaddr $image&& fatwrite mmc 1:1 $loadaddr $image $filesize\0" \
+    "bsys=run bdtb && run bker\0" \
+    "mmcboot=echo Booting from mmc ...; " \
+        "mmc dev ${mmcdev}; " \
+        "run mmcargs; run loadenvconf;" \
+        "run loadimage; run loadfdt; " \
+        "bootz ${loadaddr} - ${fdt_addr}\0" \
+    "netboot=echo Booting from net ...; " \
+        "tftp $loadaddr $image; tftp $fdt_addr ${fdt_file};" \
+        "run mmcargs; " \
+        "bootz ${loadaddr} - ${fdt_addr}\0" \
+    "upmode=fastboot 0\0" \
+    "bbl=tftp ${loadaddr} u-boot-igkboard.imx && mmc dev ${mmcdev} 1 && mmc write ${loadaddr} 2 0x500\0" \
+    MMC_FDT_OVERLAY_SETTING \
+    "bootcmd=run mmcbootdto\0" \
+    "author=linke\0"
+#endif
+
+/* Miscellaneous configurable options */
+
+/* Physical Memory Map */
+#define PHYS_SDRAM            MMDC0_ARB_BASE_ADDR
+
+#define CONFIG_SYS_SDRAM_BASE        PHYS_SDRAM
+#define CONFIG_SYS_INIT_RAM_ADDR    IRAM_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_SIZE    IRAM_SIZE
+
+#define CONFIG_SYS_INIT_SP_OFFSET \
+    (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
+    (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+/* environment organization */
+#define CONFIG_SYS_MMC_ENV_DEV        1    /* USDHC2 */
+#define CONFIG_MMCROOT            "/dev/mmcblk1p2"  /* USDHC2 */
+
+#define CONFIG_IOMUX_LPSR
+
+/* NAND stuff */
+#ifdef CONFIG_NAND_MXS
+#define CONFIG_SYS_MAX_NAND_DEVICE    1
+#define CONFIG_SYS_NAND_BASE        0x40000000
+#define CONFIG_SYS_NAND_USE_FLASH_BBT
+
+/* DMA stuff, needed for GPMI/MXS NAND support */
+#endif
+
+/* USB Configs */
+#ifdef CONFIG_CMD_USB
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
+#define CONFIG_MXC_USB_PORTSC  (PORT_PTS_UTMI | PORT_PTS_PTW)
+#define CONFIG_MXC_USB_FLAGS   0
+#define CONFIG_USB_MAX_CONTROLLER_COUNT 2
+#endif
+
+#define CONFIG_FEC_XCV_TYPE             RMII
+#define CONFIG_ETHPRIME            "eth1"
+
+#ifndef CONFIG_SPL_BUILD
+#if defined(CONFIG_DM_VIDEO)
+#define CONFIG_VIDEO_LINK
+#endif
+#endif
+
+#endif
diff -Nuar -x lingyun.bmp uboot-imx/include/configs/igkboard_overlay.h uboot-imx-lf-5.15.71-2.2.0/include/configs/igkboard_overlay.h
--- uboot-imx/include/configs/igkboard_overlay.h    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/include/configs/igkboard_overlay.h    2023-03-02 19:53:11.273148700 +0800
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
+ *
+ * Device Tree overlay env for the LingYun IoT Gateway Board.
+ */
+#ifndef  __IGKBOARD_OVERLAY_H
+#define  __IGKBOARD_OVERLAY_H
+
+#if 0
+ dtoverlay_xxx is set in uEnv.txt, then load the corresponding dtbo file
+
+ if env exists dtoverlay_lcd && test ${dtoverlay_lcd} = 1 -o ${dtoverlay_lcd} = yes ; then
+    dtbo_file=lcd.dtbo;
+    echo "Applying DT overlay: $dtbo_file";
+    fatload mmc ${mmcdev}:${mmcpart} ${dtbo_addr} ${dtbo_dir}/${dtbo_file};
+    fdt addr ${fdt_addr};
+    fdt resize ${fdt_size};
+    fdt apply ${dtbo_addr};
+ fi;
+
+
+ if env exists dtoverlay_uart ; then
+    for i in ${dtoverlay_uart};
+    do
+        dtbo_file=uart$i.dtbo;
+        echo "Applying DT overlay: $dtbo_file";
+        fatload mmc ${mmcdev}:${mmcpart} ${dtbo_addr} ${dtbo_dir}/${dtbo_file};
+        fdt addr ${fdt_addr};
+        fdt apply ${dtbo_addr};
+    done;
+ fi;
+
+#endif
+
+
+#define FDT_APPLY_OVERLAY()          \
+    "echo Applying DT overlay ==> ${dtbo_file}; " \
+    "fatload mmc ${mmcdev}:${mmcpart} ${dtbo_addr} ${dtbo_dir}/${dtbo_file}; " \
+    "fdt addr ${fdt_addr}; " \
+    "fdt resize ${fdt_size}; " \
+    "fdt apply ${dtbo_addr}; "
+
+#define CHECK_APPLY_OVERLAY( name )     \
+    "if env exists dtoverlay_" name " && test ${dtoverlay_" name "} = 1 -o ${dtoverlay_" name "} = yes ; then " \
+        "setenv dtbo_file " name ".dtbo; " \
+        FDT_APPLY_OVERLAY() \
+    "fi; "
+
+#define CHECK_APPLY_OVERLAYS_IDX( name )     \
+    "if env exists dtoverlay_" name "; then " \
+        "for i in ${dtoverlay_" name "}; do " \
+            "setenv dtbo_file " name "$i.dtbo; " \
+            FDT_APPLY_OVERLAY() \
+        " done;" \
+    "fi; "
+
+#define CHECK_APPLY_OVERLAYS_DTBO( name )     \
+    "if env exists dtoverlay_" name "; then " \
+        "for f in ${dtoverlay_" name "}; do " \
+            "setenv dtbo_file $f.dtbo; " \
+            FDT_APPLY_OVERLAY() \
+        " done;" \
+    "fi; "
+
+#define FDT_ENTRY_DEF_SETTINGS          \
+                CHECK_APPLY_OVERLAY("lcd") \
+                CHECK_APPLY_OVERLAY("cam") \
+                CHECK_APPLY_OVERLAY("i2c1") \
+                CHECK_APPLY_OVERLAY("spi1") \
+                CHECK_APPLY_OVERLAYS_IDX("uart") \
+                CHECK_APPLY_OVERLAYS_IDX("can") \
+                CHECK_APPLY_OVERLAYS_IDX("pwm") \
+                CHECK_APPLY_OVERLAYS_DTBO("extra") \
+
+#define MMC_FDT_OVERLAY_SETTING                  \
+         "fdt_size=0x10000\0" \
+         "dtbo_addr=0x83010000\0" \
+         "dtbo_dir=overlays\0" \
+        "mmcbootdto=echo Booting from mmc with overlay...; "     \
+                 "mmc dev ${mmcdev}; run mmcargs; run loadenvconf; "   \
+                 "run loadimage; run loadfdt; "       \
+                 FDT_ENTRY_DEF_SETTINGS               \
+                 "bootz ${loadaddr} - ${fdt_addr}\0"
+
+#define ENABLE_UENV_FDTO_SUPPORT
+
+#endif
diff -Nuar -x lingyun.bmp uboot-imx/Makefile uboot-imx-lf-5.15.71-2.2.0/Makefile
--- uboot-imx/Makefile    2023-03-01 18:01:20.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/Makefile    2023-03-02 20:32:48.794896871 +0800
@@ -6,6 +6,9 @@
 EXTRAVERSION =
 NAME =
 
+ARCH = arm
+CROSS_COMPILE = /opt/buildroot/cortexA7/bin/arm-linux-
+
 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"
 # More info can be located in ./README
diff -Nuar -x lingyun.bmp uboot-imx/tools/boot/bootm.c uboot-imx-lf-5.15.71-2.2.0/tools/boot/bootm.c
--- uboot-imx/tools/boot/bootm.c    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/tools/boot/bootm.c    2023-03-02 20:25:55.432891620 +0800
@@ -0,0 +1 @@
+#include <../boot/bootm.c>
diff -Nuar -x lingyun.bmp uboot-imx/tools/boot/fdt_region.c uboot-imx-lf-5.15.71-2.2.0/tools/boot/fdt_region.c
--- uboot-imx/tools/boot/fdt_region.c    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/tools/boot/fdt_region.c    2023-03-02 20:25:55.432891620 +0800
@@ -0,0 +1 @@
+#include <../boot/fdt_region.c>
diff -Nuar -x lingyun.bmp uboot-imx/tools/boot/image.c uboot-imx-lf-5.15.71-2.2.0/tools/boot/image.c
--- uboot-imx/tools/boot/image.c    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/tools/boot/image.c    2023-03-02 20:25:55.432891620 +0800
@@ -0,0 +1 @@
+#include <../boot/image.c>
diff -Nuar -x lingyun.bmp uboot-imx/tools/boot/image-cipher.c uboot-imx-lf-5.15.71-2.2.0/tools/boot/image-cipher.c
--- uboot-imx/tools/boot/image-cipher.c    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/tools/boot/image-cipher.c    2023-03-02 20:25:55.428891716 +0800
@@ -0,0 +1 @@
+#include <../boot/image-cipher.c>
diff -Nuar -x lingyun.bmp uboot-imx/tools/boot/image-fit.c uboot-imx-lf-5.15.71-2.2.0/tools/boot/image-fit.c
--- uboot-imx/tools/boot/image-fit.c    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/tools/boot/image-fit.c    2023-03-02 20:25:55.428891716 +0800
@@ -0,0 +1 @@
+#include <../boot/image-fit.c>
diff -Nuar -x lingyun.bmp uboot-imx/tools/boot/image-fit-sig.c uboot-imx-lf-5.15.71-2.2.0/tools/boot/image-fit-sig.c
--- uboot-imx/tools/boot/image-fit-sig.c    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/tools/boot/image-fit-sig.c    2023-03-02 20:25:55.428891716 +0800
@@ -0,0 +1 @@
+#include <../boot/image-fit-sig.c>
diff -Nuar -x lingyun.bmp uboot-imx/tools/boot/image-host.c uboot-imx-lf-5.15.71-2.2.0/tools/boot/image-host.c
--- uboot-imx/tools/boot/image-host.c    1970-01-01 08:00:00.000000000 +0800
+++ uboot-imx-lf-5.15.71-2.2.0/tools/boot/image-host.c    2023-03-02 20:25:55.432891620 +0800
@@ -0,0 +1 @@
+#include <../boot/image-host.c>

 bsp/kernel/patch/linux-imx-lf-5.15.71-2.2.0.patch

New file
@@ -0,0 +1,1974 @@
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/igkboard.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/igkboard.dts
--- linux-imx/arch/arm/boot/dts/igkboard.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/igkboard.dts    2023-03-02 20:46:53.724851464 +0800
@@ -0,0 +1,604 @@
+/*
+ * Device Tree Source for LingYun IGKBoard(IoT Gateway Kit Board)
+ * 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 Board";
+    compatible = "fsl,imx6ull-14x14-evk", "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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/Makefile linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/Makefile
--- linux-imx/arch/arm/boot/dts/Makefile    2023-03-01 18:11:25.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/Makefile    2023-03-02 20:49:30.115703746 +0800
@@ -1587,3 +1587,8 @@
     aspeed-bmc-portwell-neptune.dtb \
     aspeed-bmc-quanta-q71l.dtb \
     aspeed-bmc-supermicro-x11spi.dtb
+
+DTC_FLAGS_igkboard := -@
+dtb-$(CONFIG_SOC_IMX6UL) += igkboard.dtb
+subdir-$(CONFIG_SOC_IMX6UL) += overlays
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/adc.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/adc.dts
--- linux-imx/arch/arm/boot/dts/overlays/adc.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/adc.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/cam.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/cam.dts
--- linux-imx/arch/arm/boot/dts/overlays/cam.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/cam.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/can1.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/can1.dts
--- linux-imx/arch/arm/boot/dts/overlays/can1.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/can1.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/can2.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/can2.dts
--- linux-imx/arch/arm/boot/dts/overlays/can2.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/can2.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/i2c1.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/i2c1.dts
--- linux-imx/arch/arm/boot/dts/overlays/i2c1.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/i2c1.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/lcd.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/lcd.dts
--- linux-imx/arch/arm/boot/dts/overlays/lcd.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/lcd.dts    2023-03-02 20:55:07.375416028 +0800
@@ -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 = "fsl,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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/Makefile linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/Makefile
--- linux-imx/arch/arm/boot/dts/overlays/Makefile    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/Makefile    2023-03-02 20:54:40.679821453 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/nbiot-4g.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/nbiot-4g.dts
--- linux-imx/arch/arm/boot/dts/overlays/nbiot-4g.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/nbiot-4g.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/pwm7.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/pwm7.dts
--- linux-imx/arch/arm/boot/dts/overlays/pwm7.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/pwm7.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/pwm8.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/pwm8.dts
--- linux-imx/arch/arm/boot/dts/overlays/pwm8.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/pwm8.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/spi1.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/spi1.dts
--- linux-imx/arch/arm/boot/dts/overlays/spi1.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/spi1.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/uart2.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/uart2.dts
--- linux-imx/arch/arm/boot/dts/overlays/uart2.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/uart2.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/uart3.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/uart3.dts
--- linux-imx/arch/arm/boot/dts/overlays/uart3.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/uart3.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/uart4.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/uart4.dts
--- linux-imx/arch/arm/boot/dts/overlays/uart4.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/uart4.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/uart7.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/uart7.dts
--- linux-imx/arch/arm/boot/dts/overlays/uart7.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/uart7.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/w1.dts linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/w1.dts
--- linux-imx/arch/arm/boot/dts/overlays/w1.dts    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/boot/dts/overlays/w1.dts    2023-03-02 20:53:01.000000000 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/configs/igkboard_defconfig linux-imx-lf-5.15.71-2.2.0/arch/arm/configs/igkboard_defconfig
--- linux-imx/arch/arm/configs/igkboard_defconfig    1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/arch/arm/configs/igkboard_defconfig    2023-03-02 21:03:14.286840883 +0800
@@ -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 -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/drivers/gpu/drm/mxsfb/mxsfb_drv.c linux-imx-lf-5.15.71-2.2.0/drivers/gpu/drm/mxsfb/mxsfb_drv.c
--- linux-imx/drivers/gpu/drm/mxsfb/mxsfb_drv.c    2023-03-01 18:11:27.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/drivers/gpu/drm/mxsfb/mxsfb_drv.c    2023-03-02 21:11:19.981065658 +0800
@@ -360,7 +360,8 @@
     if (ret)
         goto err_unload;
 
-    drm_fbdev_generic_setup(drm, 32);
+    /* modify color depth to support RGB565 LCD by linke */
+    drm_fbdev_generic_setup(drm, 16);
 
     return 0;
 
@@ -407,7 +408,7 @@
     .probe        = mxsfb_probe,
     .remove        = mxsfb_remove,
     .driver    = {
-        .name        = "mxsfb",
+        .name        = "mxsfb-drm",
         .of_match_table    = mxsfb_dt_ids,
         .pm        = &mxsfb_pm_ops,
     },
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/drivers/gpu/drm/panel/panel-simple.c linux-imx-lf-5.15.71-2.2.0/drivers/gpu/drm/panel/panel-simple.c
--- linux-imx/drivers/gpu/drm/panel/panel-simple.c    2023-03-01 18:11:28.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/drivers/gpu/drm/panel/panel-simple.c    2023-03-02 21:13:45.554025562 +0800
@@ -4534,8 +4534,33 @@
     .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
 };
 
+static const struct drm_display_mode fsl_imx6ull_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 fsl_imx6ull_panel = {
+    .modes = fsl_imx6ull_panel_mode,
+    .num_modes = 1,
+    .bpc = 8,
+    .bus_format = MEDIA_BUS_FMT_RGB565_1X16,
+};
+
 static const struct of_device_id platform_of_match[] = {
     {
+        .compatible = "fsl,imx6ull-panel",
+        .data = &fsl_imx6ull_panel,
+    }, {
         .compatible = "ampire,am-1280800n3tzqw-t00h",
         .data = &ampire_am_1280800n3tzqw_t00h,
     }, {
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/drivers/video/backlight/pwm_bl.c linux-imx-lf-5.15.71-2.2.0/drivers/video/backlight/pwm_bl.c
--- linux-imx/drivers/video/backlight/pwm_bl.c    2023-03-01 18:11:32.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/drivers/video/backlight/pwm_bl.c    2023-03-02 21:15:09.916249612 +0800
@@ -552,6 +552,7 @@
     if (!state.period && (data->pwm_period_ns > 0))
         state.period = data->pwm_period_ns;
 
+    state.enabled = true; /*  Add by guowenxue to enalbe backlight as default */
     ret = pwm_apply_state(pb->pwm, &state);
     if (ret) {
         dev_err(&pdev->dev, "failed to apply initial PWM state: %d\n",
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/drivers/video/fbdev/core/fbcon.c linux-imx-lf-5.15.71-2.2.0/drivers/video/fbdev/core/fbcon.c
--- linux-imx/drivers/video/fbdev/core/fbcon.c    2023-03-01 18:11:32.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/drivers/video/fbdev/core/fbcon.c    2023-03-02 21:16:33.742476565 +0800
@@ -355,39 +355,7 @@
     return color;
 }
 
-static void fb_flashcursor(struct work_struct *work)
-{
-    struct fb_info *info = container_of(work, struct fb_info, queue);
-    struct fbcon_ops *ops = info->fbcon_par;
-    struct vc_data *vc = NULL;
-    int c;
-    int mode;
-    int ret;
-
-    /* FIXME: we should sort out the unbind locking instead */
-    /* instead we just fail to flash the cursor if we can't get
-     * the lock instead of blocking fbcon deinit */
-    ret = console_trylock();
-    if (ret == 0)
-        return;
-
-    if (ops && ops->currcon != -1)
-        vc = vc_cons[ops->currcon].d;
-
-    if (!vc || !con_is_visible(vc) ||
-         registered_fb[con2fb_map[vc->vc_num]] != info ||
-        vc->vc_deccm != 1) {
-        console_unlock();
-        return;
-    }
-
-    c = scr_readw((u16 *) vc->vc_pos);
-    mode = (!ops->cursor_flash || ops->cursor_state.enable) ?
-        CM_ERASE : CM_DRAW;
-    ops->cursor(vc, info, mode, get_color(vc, info, c, 1),
-            get_color(vc, info, c, 0));
-    console_unlock();
-}
+static void fb_flashcursor(struct work_struct *work){}
 
 static void cursor_timer_handler(struct timer_list *t)
 {
@@ -1317,30 +1285,7 @@
         ops->clear_margins(vc, info, margin_color, bottom_only);
 }
 
-static void fbcon_cursor(struct vc_data *vc, int mode)
-{
-    struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
-    struct fbcon_ops *ops = info->fbcon_par;
-     int c = scr_readw((u16 *) vc->vc_pos);
-
-    ops->cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms);
-
-    if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1)
-        return;
-
-    if (vc->vc_cursor_type & CUR_SW)
-        fbcon_del_cursor_timer(info);
-    else
-        fbcon_add_cursor_timer(info);
-
-    ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1;
-
-    if (!ops->cursor)
-        return;
-
-    ops->cursor(vc, info, mode, get_color(vc, info, c, 1),
-            get_color(vc, info, c, 0));
-}
+static void fbcon_cursor(struct vc_data *vc, int mode){}
 
 static int scrollback_phys_max = 0;
 static int scrollback_max = 0;
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/drivers/video/fbdev/mxsfb.c linux-imx-lf-5.15.71-2.2.0/drivers/video/fbdev/mxsfb.c
--- linux-imx/drivers/video/fbdev/mxsfb.c    2023-03-01 18:11:32.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/drivers/video/fbdev/mxsfb.c    2023-03-02 21:17:31.225256558 +0800
@@ -1586,7 +1586,6 @@
 
 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,imx7ulp-lcdif", .data = &mxsfb_devtype[2], },
     { /* sentinel */ }
 };
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/Makefile linux-imx-lf-5.15.71-2.2.0/Makefile
--- linux-imx/Makefile    2023-03-01 18:11:24.000000000 +0800
+++ linux-imx-lf-5.15.71-2.2.0/Makefile    2023-03-02 21:05:05.864664425 +0800
@@ -5,6 +5,9 @@
 EXTRAVERSION =
 NAME = Trick or Treat
 
+ARCH = arm
+CROSS_COMPILE = /opt/buildroot/cortexA7/bin/arm-linux-
+
 # *DOCUMENTATION*
 # To see a list of typical targets execute "make help"
 # More info can be located in ./README
@@ -1910,6 +1913,7 @@
         \( -name '*.[aios]' -o -name '*.ko' -o -name '.*.cmd' \
         -o -name '*.ko.*' \
         -o -name '*.dtb' -o -name '*.dtbo' -o -name '*.dtb.S' -o -name '*.dt.yaml' \
+        -o -name '*.dtbo' \
         -o -name '*.dwo' -o -name '*.lst' \
         -o -name '*.su' -o -name '*.mod' \
         -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \