imx6ull14x14evk

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imx6ull14x14evk

1,876 Views
2548903578
Contributor III
Hollo,everyone I am using a board based on imx6ull14x14evk, ddr is 512M, EMMC is 8G. There is no problem with using the official downloaded mfg_tool to burn directly. But compiled with yocto, uboot and root files can be used. But zImage and dtb cannot be used. I just want to ask. Why can't yocto be compiled? The repo uses: repo init -u https://source.codeaurora.org/external/imx/fsl-arm-yocto-bsp -b imx-4.1-krogoth. The build is as follows: DISTRO=fsl-imx-x11 MACHINE=imx6ull14x14evk source fsl-setup-release.sh -b build, bitbake fsl-image-qt5. After it is completed, it cannot be used normally, and the kernel will have an error.Can I use other versions of the kernel?
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13 Replies

1,865 Views
Zhiming_Liu
NXP TechSupport
NXP TechSupport

Hi

 

你试一下L5.4.70_2.3.0,我们的新BSP都是兼容6ULL的

BR

Zhiming

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1,856 Views
2548903578
Contributor III

Hi,

   因为我使用的板子除了emmc的位宽不一样,其他都一样,官方的下载工具也能直接使用,但是就是编译出来的yocto不能使用。还有就是我换过5.4.24-2.1.0这个版本也是不行。

 

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1,847 Views
Zhiming_Liu
NXP TechSupport
NXP TechSupport

Hi

你把错误信息贴上来

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1,839 Views
2548903578
Contributor III

是5.4.24-2.1.0这个版本的错误信息吗

 

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1,837 Views
Zhiming_Liu
NXP TechSupport
NXP TechSupport

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1,806 Views
2548903578
Contributor III
您知道这是为什么,还是说yocto编译出来和官网提供的mfg_tool的不一样。还有就是yocto的版本也有差异
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1,797 Views
Zhiming_Liu
NXP TechSupport
NXP TechSupport

首先L4和L5的版本差异很大,其次L5也是支持i.mx6ull的,编译出来的系统和demo系统可能会有一点差异,不过不会影响系统启动。你之前说emmc位宽不一样,你是修改改的内核还是uboot,如果位宽不一样,uboot和kernel的驱动代码都需要修改。

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1,773 Views
2548903578
Contributor III
Hi 非常感谢这两天您的回答,我换了L5.4.47_2.2.0这个版本后,现在板子已经可以正常的启动了,uboot和内核都没有问题。但还是有点疑惑,前面使用的版本按理说应该也是支持这个板子的才对,因为在选择的时候有imx6ull14x14evk这个板子。但是为什么就是不行呢,而且出现的问题也都不一样。那这样的话我该怎么快速的选择正确的版本号呢。因为要编译生成一个yocto的时间实在是太长了而且也很大,不可能每个版本都进行测试吧。希望您能回复一下,由衷的感谢!
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1,770 Views
Zhiming_Liu
NXP TechSupport
NXP TechSupport

Hi

 

目前我无法给出准确的原因,你看一下这个教程:https://source.codeaurora.org/external/imx/uboot-imx/tree/doc/README.log?h=imx_v2020.04_5.4.70_2.3.0

 

打开uboot的debug模式,看一下在下载的时候卡在了哪里

 

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1,787 Views
2548903578
Contributor III

U-Boot 2016.03-imx_v2016.03_4.1.15_2.0.0_ga+ga57b13b (Mar 23 2021 - 19:10:33 +0800)

CPU: Freescale i.MX6ULL rev1.1 69 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 50C
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
mmc1(part 0) is current device
Net: Board Net Initialization Failed
No ethernet found.
Boot from USB for mfgtools
Use default environment for mfgtools
Run bootcmd_mfg: run mfgtool_args;bootz ${loadaddr} ${initrd_addr} ${fdt_addr};
Hit any key to stop autoboot: 0
Bad Linux ARM zImage magic!
=>
=>
=> <INTERRUPT>
=>
=>
=>

4.1.15_2.0.0当我处在下载端是,还是可以进行输入的

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1,790 Views
2548903578
Contributor III
现在是这个版本的uboot都无法启动,暂时我没做任何修改,也不知道怎么修改,要修改什么。
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1,820 Views
2548903578
Contributor III

当我使用4.1.15-2.10这个版本是uboot还是能使用的,而这个版本uboot都无法使用。

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1,829 Views
2548903578
Contributor III

信息如下:
U-Boot 2020.04-5.4.24-2.1.0+g4979a99482 (Mar 25 2021 - 08:52:02 +0000)

CPU: i.MX6ULL rev1.1 792 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 46C
Reset cause: POR
Model: i.MX6 ULL 14x14 EVK Board
Board: MX6ULL 14x14 EVK
DRAM: 512 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... *** Warning - bad CRC, using default environment

[*]-Video Link 0 (480 x 272)
[0] lcdif@21c8000, video
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc1(part 0) is current device
Net: Could not get PHY for FEC1: addr 1
Could not get PHY for FEC1: addr 1
Get shared mii bus on ethernet@2188000

PS D:\desktop\6ull> uuu -b emmc_all D:\desktop\6ull\u-boot-emmc-2020.04-r0.imx D:\desktop\6ull\core-image-minimal-imx6ull14x14evk-20210325071354.rootfs.wic.bz2
uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.4.107-0-g9201dde

Success 0 Failure 0


1:11 1/ 1 [=================100%=================] SDP: boot -f D:\desktop\6ull\u-boot-emmc-2020.04-r0.imx

一直卡在这里下不进去。

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