i.MX6ULL系统移植：uboot移植2 - 移植NXP官方uboot
作者：互联网
在移植过程中按照NXP官方文档《i.MX BSP Porting Guide》和正点原理提供资料均未移植成功，最后通过一个大佬博客讲解成功移植。以此记录。
原博客地址：https://blog.csdn.net/BBDS1ASD/article/details/108692727
一、解压NXP提供uboot
tar -vxjf uboot-imx-rel_imx_4.1.15_2.1.0_ga.tar.bz2
二、添加开发板配置文件
在uboot/configs/中，把mx6ull_14x14_evk_emmc_defconfig拷贝成自己的mx6ull_14x14_xxx_emmc_defconfig；
cp mx6ull_14x14_evk_emmc_defconfig mx6ull_14x14_xxx_emmc_defconfig
修改mx6ull_14x14_xxx_emmc_defconfig内容：
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6ull_xxx_emmc/imximage.cfg,MX6ULL_EVK_EMMC_REWORK"
CONFIG_TARGET_MX6ULL_xxx_EMMC=y
三、添加开发板头文件
有一些需要配置的信息，一般是在一个头文件里面配置，每个板子有一个。对于NXP官方的6ULL EVK板子，这个头文件就是mx6ullevk.h.
在uboot/include/configs/中，把mx6ullevk.h 拷贝成自己的 mx6ull_xxx_emmc.h；
修改mx6ull_xxx_emmc.h内容：
#ifndef __MX6ULLEVK_CONFIG_H
#define __MX6ULLEVK_CONFIG_H
改为
#ifndef __MX6ULL_XXX_EMMC_CONFIG_H
#define __MX6ULL_XXX_EMMC_CONFIG_H
四、添加开发板的板级文件夹
每个板子都有特有的文件，也叫做板级文件；这里我们将6ULL EVK的板级文件直接拷贝过来。
在 uboot/board/freescale/ 中，将 mx6ullevk/ 文件夹拷贝成自己的板级文件夹 mx6ull_xxx_emmc/；
cp mx6ullevk mx6ull_xxx_emmc
五、调整板级文件夹中文件内容
1、更改C文件名
在新的板级文件夹中，将mx6ullevk.c拷贝成mx6ull_xxx_emmc.c；
mv mx6ullevk.c mx6ull_xxx_emmc.c
2、修改Makefile
obj-y := mx6ull_xxx_emmc.o
3、修改imximage.cfg
PLUGIN board/freescale/mx6ullevk/plugin.bin 0x00907000
改为
PLUGIN board/freescale/mx6ull_xxx_emmc/plugin.bin 0x00907000
4、修改Kconfig
if TARGET_MX6ULL_xxx_EMMC
config SYS_BOARD
default "mx6ull_xxx_emmc"
config SYS_VENDOR
default "freescale"
config SYS_SOC
default "mx6"
config SYS_CONFIG_NAME
default "mx6ull_xxx_emmc"
endif
5、修改MAINTAINERS
MX6ULL_XXX_EMMC BOARD
M: Peng Fan <peng.fan@nxp.com>
S: Maintained
F: board/freescale/mx6ull_xxx_emmc/
F: include/configs/mx6ull_xxx_emmc.h
F: configs/mx6ull_14x14_xxx_emmc_defconfig
六、修改uboot的配置界面
修改文件arch/arm/cpu/armv7/mx6/Kconfig，添加如下内容：
config TARGET_MX6ULL_xxx_EMMC
bool "Support mx6ull_xxx_emmc"
select MX6ULL
select DM
select DM_THERMAL
source "board/freescale/mx6ull_xxx_emmc/Kconfig"
七、编译
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- distclean
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- mx6ull_14x14_xxx_emmc_defconfig
make V=1 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j4
八、测试
1、解压uboot
tar -vxjf uboot-imx-rel_imx_4.1.15_2.1.0_ga.tar.bz2
解压前：
onlylove@ubuntu:~/linux/uboot/nxp_uboot$ ls
uboot-imx-rel_imx_4.1.15_2.1.0_ga.tar.bz2
onlylove@ubuntu:~/linux/uboot/nxp_uboot$
解压后;
onlylove@ubuntu:~/linux/uboot/nxp_uboot$ ls
uboot-imx-rel_imx_4.1.15_2.1.0_ga uboot-imx-rel_imx_4.1.15_2.1.0_ga.tar.bz2
onlylove@ubuntu:~/linux/uboot/nxp_uboot$
2、添加开发板配置文件
cd uboot-imx-rel_imx_4.1.15_2.1.0_ga/configs/
cp mx6ull_14x14_evk_emmc_defconfig mx6ull_14x14_lq_emmc_defconfig
命令执行前：
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/configs$ ls -l mx6ull*
-rw-rw-r-- 1 onlylove onlylove 165 May 1 2017 mx6ull_14x14_ddr3_arm2_defconfig
-rw-rw-r-- 1 onlylove onlylove 194 May 1 2017 mx6ull_14x14_ddr3_arm2_emmc_defconfig
-rw-rw-r-- 1 onlylove onlylove 175 May 1 2017 mx6ull_14x14_ddr3_arm2_epdc_defconfig
-rw-rw-r-- 1 onlylove onlylove 179 May 1 2017 mx6ull_14x14_ddr3_arm2_nand_defconfig
-rw-rw-r-- 1 onlylove onlylove 179 May 1 2017 mx6ull_14x14_ddr3_arm2_qspi1_defconfig
-rw-rw-r-- 1 onlylove onlylove 181 May 1 2017 mx6ull_14x14_ddr3_arm2_spinor_defconfig
-rw-rw-r-- 1 onlylove onlylove 194 May 1 2017 mx6ull_14x14_ddr3_arm2_tsc_defconfig
-rw-rw-r-- 1 onlylove onlylove 159 May 1 2017 mx6ull_14x14_evk_defconfig
-rw-rw-r-- 1 onlylove onlylove 182 May 1 2017 mx6ull_14x14_evk_emmc_defconfig
-rw-rw-r-- 1 onlylove onlylove 173 May 1 2017 mx6ull_14x14_evk_nand_defconfig
-rw-rw-r-- 1 onlylove onlylove 173 May 1 2017 mx6ull_14x14_evk_qspi1_defconfig
-rw-rw-r-- 1 onlylove onlylove 164 May 1 2017 mx6ull_9x9_evk_defconfig
-rw-rw-r-- 1 onlylove onlylove 178 May 1 2017 mx6ull_9x9_evk_qspi1_defconfig
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/configs$
命令执行后：
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/configs$ ls -l mx6ull*
-rw-rw-r-- 1 onlylove onlylove 165 May 1 2017 mx6ull_14x14_ddr3_arm2_defconfig
-rw-rw-r-- 1 onlylove onlylove 194 May 1 2017 mx6ull_14x14_ddr3_arm2_emmc_defconfig
-rw-rw-r-- 1 onlylove onlylove 175 May 1 2017 mx6ull_14x14_ddr3_arm2_epdc_defconfig
-rw-rw-r-- 1 onlylove onlylove 179 May 1 2017 mx6ull_14x14_ddr3_arm2_nand_defconfig
-rw-rw-r-- 1 onlylove onlylove 179 May 1 2017 mx6ull_14x14_ddr3_arm2_qspi1_defconfig
-rw-rw-r-- 1 onlylove onlylove 181 May 1 2017 mx6ull_14x14_ddr3_arm2_spinor_defconfig
-rw-rw-r-- 1 onlylove onlylove 194 May 1 2017 mx6ull_14x14_ddr3_arm2_tsc_defconfig
-rw-rw-r-- 1 onlylove onlylove 159 May 1 2017 mx6ull_14x14_evk_defconfig
-rw-rw-r-- 1 onlylove onlylove 182 May 1 2017 mx6ull_14x14_evk_emmc_defconfig
-rw-rw-r-- 1 onlylove onlylove 173 May 1 2017 mx6ull_14x14_evk_nand_defconfig
-rw-rw-r-- 1 onlylove onlylove 173 May 1 2017 mx6ull_14x14_evk_qspi1_defconfig
-rw-rw-r-- 1 onlylove onlylove 182 Jul 20 06:50 mx6ull_14x14_lq_emmc_defconfig
-rw-rw-r-- 1 onlylove onlylove 164 May 1 2017 mx6ull_9x9_evk_defconfig
-rw-rw-r-- 1 onlylove onlylove 178 May 1 2017 mx6ull_9x9_evk_qspi1_defconfig
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/configs$
修改mx6ull_14x14_xxx_emmc_defconfig内容：
修改前：
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6ullevk/imximage.cfg,MX6ULL_EVK_EMMC_REWORK"
CONFIG_ARM=y
CONFIG_ARCH_MX6=y
CONFIG_TARGET_MX6ULL_14X14_EVK=y
CONFIG_CMD_GPIO=y
修改后：
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6ull_lq_emmc/imximage.cfg,MX6ULL_EVK_EMMC_REWORK"
CONFIG_ARM=y
CONFIG_ARCH_MX6=y
CONFIG_TARGET_MX6ULL_LQ_EMMC=y
CONFIG_CMD_GPIO=y
3、添加开发板头文件
cd include/configs/
cp mx6ullevk.h mx6ull_lq_emmc.h
命令执行前：
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/include/configs$ ls -l mx6ull*
-rw-rw-r-- 1 onlylove onlylove 3136 May 1 2017 mx6ull_ddr3_arm2.h
-rw-rw-r-- 1 onlylove onlylove 10386 May 1 2017 mx6ullevk.h
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/include/configs$
命令执行后：
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/include/configs$ ls -l mx6ull*
-rw-rw-r-- 1 onlylove onlylove 3136 May 1 2017 mx6ull_ddr3_arm2.h
-rw-rw-r-- 1 onlylove onlylove 10386 May 1 2017 mx6ullevk.h
-rw-rw-r-- 1 onlylove onlylove 10386 Jul 20 06:55 mx6ull_lq_emmc.h
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/include/configs$
修改mx6ull_xxx_emmc.h内容：
vim mx6ull_lq_emmc.h
#ifndef __MX6ULLEVK_CONFIG_H
#define __MX6ULLEVK_CONFIG_H
改为
#ifndef __MX6ULL_LQ_EMMC_CONFIG_H
#define __MX6ULL_LQ_EMMC_CONFIG_H
4、添加开发板板级文件夹
cd board/freescale/
cp -r mx6ullevk mx6ull_lq_emmc
命令执行前：
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/board/freescale$ ls -l mx6ull*
mx6ull_ddr3_arm2:
total 48
-rw-rw-r-- 1 onlylove onlylove 2768 May 1 2017 imximage.cfg
-rw-rw-r-- 1 onlylove onlylove 190 May 1 2017 Kconfig
-rw-rw-r-- 1 onlylove onlylove 243 May 1 2017 Makefile
-rw-rw-r-- 1 onlylove onlylove 31432 May 1 2017 mx6ull_ddr3_arm2.c
-rw-rw-r-- 1 onlylove onlylove 2675 May 1 2017 plugin.S
mx6ullevk:
total 64
-rw-rw-r-- 1 onlylove onlylove 2786 May 1 2017 imximage.cfg
-rw-rw-r-- 1 onlylove onlylove 2851 May 1 2017 imximage_lpddr2.cfg
-rw-rw-r-- 1 onlylove onlylove 183 May 1 2017 Kconfig
-rw-rw-r-- 1 onlylove onlylove 196 May 1 2017 MAINTAINERS
-rw-rw-r-- 1 onlylove onlylove 236 May 1 2017 Makefile
-rw-rw-r-- 1 onlylove onlylove 30135 May 1 2017 mx6ullevk.c
-rw-rw-r-- 1 onlylove onlylove 5079 May 1 2017 plugin.S
-rw-rw-r-- 1 onlylove onlylove 716 May 1 2017 README
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/board/freescale$
命令执行后：
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/board/freescale$ ls -l mx6ull*
mx6ull_ddr3_arm2:
total 48
-rw-rw-r-- 1 onlylove onlylove 2768 May 1 2017 imximage.cfg
-rw-rw-r-- 1 onlylove onlylove 190 May 1 2017 Kconfig
-rw-rw-r-- 1 onlylove onlylove 243 May 1 2017 Makefile
-rw-rw-r-- 1 onlylove onlylove 31432 May 1 2017 mx6ull_ddr3_arm2.c
-rw-rw-r-- 1 onlylove onlylove 2675 May 1 2017 plugin.S
mx6ullevk:
total 64
-rw-rw-r-- 1 onlylove onlylove 2786 May 1 2017 imximage.cfg
-rw-rw-r-- 1 onlylove onlylove 2851 May 1 2017 imximage_lpddr2.cfg
-rw-rw-r-- 1 onlylove onlylove 183 May 1 2017 Kconfig
-rw-rw-r-- 1 onlylove onlylove 196 May 1 2017 MAINTAINERS
-rw-rw-r-- 1 onlylove onlylove 236 May 1 2017 Makefile
-rw-rw-r-- 1 onlylove onlylove 30135 May 1 2017 mx6ullevk.c
-rw-rw-r-- 1 onlylove onlylove 5079 May 1 2017 plugin.S
-rw-rw-r-- 1 onlylove onlylove 716 May 1 2017 README
mx6ull_lq_emmc:
total 64
-rw-rw-r-- 1 onlylove onlylove 2786 Jul 20 07:04 imximage.cfg
-rw-rw-r-- 1 onlylove onlylove 2851 Jul 20 07:04 imximage_lpddr2.cfg
-rw-rw-r-- 1 onlylove onlylove 183 Jul 20 07:04 Kconfig
-rw-rw-r-- 1 onlylove onlylove 196 Jul 20 07:04 MAINTAINERS
-rw-rw-r-- 1 onlylove onlylove 236 Jul 20 07:04 Makefile
-rw-rw-r-- 1 onlylove onlylove 30135 Jul 20 07:04 mx6ullevk.c
-rw-rw-r-- 1 onlylove onlylove 5079 Jul 20 07:04 plugin.S
-rw-rw-r-- 1 onlylove onlylove 716 Jul 20 07:04 README
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga/board/freescale$
5、调整板级文件夹中内容
1、更改C文件名
mv mx6ullevk.c mx6ull_lq_emmc.c
2、修改Makefile
修改前：
# (C) Copyright 2015 Freescale Semiconductor, Inc.
#
# SPDX-License-Identifier: GPL-2.0+
#
obj-y := mx6ullevk.o
extra-$(CONFIG_USE_PLUGIN) := plugin.bin
$(obj)/plugin.bin: $(obj)/plugin.o
$(OBJCOPY) -O binary --gap-fill 0xff $< $@
修改后：
# (C) Copyright 2015 Freescale Semiconductor, Inc.
#
# SPDX-License-Identifier: GPL-2.0+
#
obj-y := mx6ull_lq_emmc.o
extra-$(CONFIG_USE_PLUGIN) := plugin.bin
$(obj)/plugin.bin: $(obj)/plugin.o
$(OBJCOPY) -O binary --gap-fill 0xff $< $@
3、修改imximage.cfg
修改前：
/*
* Copyright (C) 2016 Freescale Semiconductor, Inc.
*
* 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
*/
#define __ASSEMBLY__
#include <config.h>
/* image version */
IMAGE_VERSION 2
/*
* Boot Device : one of
* spi/sd/nand/onenand, qspi/nor
*/
#ifdef CONFIG_SYS_BOOT_QSPI
BOOT_FROM qspi
#elif defined(CONFIG_SYS_BOOT_EIMNOR)
BOOT_FROM nor
#else
BOOT_FROM sd
#endif
#ifdef CONFIG_USE_PLUGIN
/*PLUGIN plugin-binary-file IRAM_FREE_START_ADDR*/
PLUGIN board/freescale/mx6ull_lq_emmc/plugin.bin 0x00907000
#else
#ifdef CONFIG_SECURE_BOOT
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
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
修改后
/*
* Copyright (C) 2016 Freescale Semiconductor, Inc.
*
* 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
*/
#define __ASSEMBLY__
#include <config.h>
/* image version */
IMAGE_VERSION 2
/*
* Boot Device : one of
* spi/sd/nand/onenand, qspi/nor
*/
#ifdef CONFIG_SYS_BOOT_QSPI
BOOT_FROM qspi
#elif defined(CONFIG_SYS_BOOT_EIMNOR)
BOOT_FROM nor
#else
BOOT_FROM sd
#endif
#ifdef CONFIG_USE_PLUGIN
/*PLUGIN plugin-binary-file IRAM_FREE_START_ADDR*/
PLUGIN board/freescale/mx6ullevk/plugin.bin 0x00907000
#else
#ifdef CONFIG_SECURE_BOOT
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
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
4、修改Kconfig
修改前：
if TARGET_MX6ULL_14X14_EVK || TARGET_MX6ULL_9X9_EVK
config SYS_BOARD
default "mx6ullevk"
config SYS_VENDOR
default "freescale"
config SYS_CONFIG_NAME
default "mx6ullevk"
endif
修改后：
if TARGET_MX6ULL_LQ_EMMC
config SYS_BOARD
default "mx6ull_lq_emmc"
config SYS_VENDOR
default "freescale"
config SYS_SOC
default "mx6"
config SYS_CONFIG_NAME
default "mx6ull_lq_emmc"
endif
5、修改MAINTAINERS
修改前：
MX6ULLEVK BOARD
M: Peng Fan <peng.fan@nxp.com>
S: Maintained
F: board/freescale/mx6ullevk/
F: include/configs/mx6ullevk.h
F: configs/mx6ull_14x14_evk_defconfig
F: configs/mx6ull_9x9_evk_defconfig
修改后：
MX6ULL_LQ_EMMC BOARD
M: Peng Fan <peng.fan@nxp.com>
S: Maintained
F: board/freescale/mx6ull_lq_emmc/
F: include/configs/mx6ull_lq_emmc.h
F: configs/mx6ull_14x14_lq_emmc_defconfig
6、修改uboot配置界面
cd arch/arm/cpu/armv7/mx6/
vim Kconfig
在 207 行加入如下内容：
config TARGET_MX6ULL_LQ_EMMC
bool "Support mx6ull_lq_emmc"
select MX6ULL
select DM
select DM_THERMAL
在最后一行的 endif 的前一行添加如下内容：
source "board/freescale/mx6ull_lq_emmc/Kconfig"
7、编译
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- distclean
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- mx6ull_14x14_lq_emmc_defconfig
make V=1 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j4
部分编译信息：
Image Type: Freescale IMX Boot Image
Image Ver: 2 (i.MX53/6/7 compatible)
Mode: DCD
Data Size: 425984 Bytes = 416.00 kB = 0.41 MB
Load Address: 877ff420
Entry Point: 87800000
8、烧录到SD卡
sudo dd if=u-boot.imx of=/dev/sdb bs=1k seek=1 conv=fsync
烧录结果：
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga$ sudo dd if=u-boot.imx of=/dev/sdb bs=1k seek=1 conv=fsync
[sudo] password for onlylove:
415+0 records in
415+0 records out
424960 bytes (425 kB, 415 KiB) copied, 0.0668331 s, 6.4 MB/s
onlylove@ubuntu:~/linux/uboot/nxp_uboot/uboot-imx-rel_imx_4.1.15_2.1.0_ga$
9、将SD卡插入开发板进行验证
U-Boot 2016.03 (Jul 20 2021 - 08:25:23 -0700)
CPU: Freescale i.MX6ULL rev1.1 69 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 39C
Reset cause: POR
Board: MX6ULL 14x14 EVK
I2C: ready
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
*** Warning - bad CRC, using default environment
Display: TFT43AB (480x272)
Video: 480x272x24
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc0 is current device
Net: Board Net Initialization Failed
No ethernet found.
Normal Boot
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
switch to partitions #0, OK
mmc0 is current device
reading boot.scr
** Unable to read file boot.scr **
reading zImage
** Unable to read file zImage **
Booting from net ...
No ethernet found.
No ethernet found.
Bad Linux ARM zImage magic!
=>
通过uboot启动信息可以看出，编译成功。
标签：rw,uboot,NXP,onlylove,--,mx6ull,DATA,移植 来源： https://blog.csdn.net/OnlyLove_/article/details/118945233