could not update u-boot command line via mfgtool

[wangtsungli]

Hi community,

I'm working on i.MX6 Quad sabre-SD platform and build Android 6 for my image.

Now I have faced strange phenomenon.

Here is the situation.

I update my image via mfgtool.

And below is my u-boot burning part in ucl2.xml.

<!-- burn uboot -->
<CMD state="Updater" type="push" body="$ dd if=/dev/zero of=/dev/mmcblk%mmc% bs=1k seek=768 conv=fsync count=512">clear u-boot arg</CMD>
<CMD state="Updater" type="push" body="$ echo 0 > /sys/block/mmcblk%mmc%boot0/force_ro">access boot partition 1</CMD>
<CMD state="Updater" type="push" body="send" file="files/android/%folder%/u-boot-imx%soc%%ldo%.imx" >Sending u-boot.bin</CMD>
<CMD state="Updater" type="push" body="$ dd if=$FILE of=/dev/mmcblk%mmc%boot0 bs=512 seek=2 ">write U-Boot to sd card</CMD>
<CMD state="Updater" type="push" body="$ echo 1 > /sys/block/mmcblk%mmc%boot0/force_ro"> re-enable read-only access </CMD>

After burning image, mfgtool would show green bar to be success.

So I booting my machine and get into u-boot environment console to check whether u-boot command line has been changed correctly or not.

But I find out that u-boot command line did not change to latest version.

But the time did update like below picture

If picture is too small, could see original picture attached below.

In the red block shows time that your u-boot updated.

And blue block shows my u-boot command line.

Red block did update time so I assume that my u-boot burned the image well.

But Blue block did not change to what I set in my source code.

How can I fix this problem?

How can I change my u-boot command line?

Thanks in Advanced!

[igorpadykov]

Hi tsung

one can try to change bootargs in uboot/include/configs/mx6sabre_common.h

mx6sabre_common.h\configs\include - uboot-imx - i.MX U-Boot 

Best regards
igor
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[wangtsungli]

Hi igorpadykov‌

Is there any other way to solve my problem?

[ravitejalaggysh · Accepted solution]

Hi tsung,

There is some mistake under ucl2.xml ( present under mfgtool-c72a398-p1\Profiles\Linux\OS Firmware) of mfg-tool.

It incorrectly tries to erase the uboot arguments at some other offset.

<!-- burn uboot -->
<CMD state="Updater" type="push" body="$ dd if=/dev/zero of=/dev/mmcblk%mmc% bs=1k seek=768 conv=fsync count=512">clear u-boot arg</CMD>

Here value 768 is incorrect, please refer to the board header file and correct it.

It would be something like this

#ifndef __IMX6QLD_ICORE_CONFIG_H
#define __IMX6QLD_ICORE_CONFIG_H

#include <linux/sizes.h>
#include "mx6_common.h"

/* Size of malloc() pool */
#define CONFIG_SYS_MALLOC_LEN    (16 * SZ_1M)

/* Total Size of Environment Sector */
#define CONFIG_ENV_SIZE       SZ_128K

/* Allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE

/* Environment */
#ifndef CONFIG_ENV_IS_NOWHERE
/* Environment in MMC */
# if defined(CONFIG_ENV_IS_IN_MMC)
#  define CONFIG_ENV_OFFSET      0x100000
/* Environment in NAND */
# elif defined(CONFIG_ENV_IS_IN_NAND)
#  define CONFIG_ENV_OFFSET      0x400000
#  define CONFIG_ENV_SECT_SIZE      CONFIG_ENV_SIZE
# endif
#endif

CONFIG_ENV_OFFSET here is 0x100000, so you should erase by using seek=1024

0x100000 = 1048576 (byes in decimal) / 1024 (1k block size) = 1024

so you should you seek by 1024 blocks and CONFIG_ENV_SIZE is 128k ,so count should be 128

finally your command should be

<!-- burn uboot -->
<CMD state="Updater" type="push" body="$ dd if=/dev/zero of=/dev/mmcblk%mmc% bs=1k seek=1024 conv=fsync count=128">clear u-boot arg</CMD>

Similarly add a command to erase the memory region used for extended uboot arguments.

Had a similar issue, I tried this for some custom board and it worked.

Thanks,

Raviteja

[wangtsungli]

Thanks for your reply.

Your answer solves my problem.

[igorpadykov]

nxp has special support service which may be helpful in resolving customer

specific cases:

NXP Professional Services|NXP 

Best regards
igor

[wangtsungli]

Hi igorpadykov‌

Thanks for your reply.

I had changed the u-boot command line in uboot/include/configs/mx6sabreandroid_common.h

Below is what I add.

#if defined(CONFIG_FX_SELINUX)

#if defined(FX_DUAL_DISPLAY)
#define BOOT_ENV_VIDEO "bootargs= console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=FX100 cma=384M androidboot.selinux=enforcing androidboot.dm_verity=disabled no_console_suspend=1 enable_wait_mode=off \0"
#elif defined(FX_HDMI_DISPLAY)
#define BOOT_ENV_VIDEO "bootargs= console=ttymxc0,115200 init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=FX100 cma=384M androidboot.selinux=enforcing androidboot.dm_verity=disabled no_console_suspend=1 enable_wait_mode=off \0"
#else
#define BOOT_ENV_VIDEO "bootargs= console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=FX100 cma=384M androidboot.selinux=disabled androidboot.dm_verity=disabled no_console_suspend=1 enable_wait_mode=off \0"
#endif

#else

#if defined(FX_DUAL_DISPLAY)
#define BOOT_ENV_VIDEO "bootargs= console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=FX100 cma=384M androidboot.selinux=disabled androidboot.dm_verity=disabled no_console_suspend=1 enable_wait_mode=off \0"
#elif defined(FX_HDMI_DISPLAY)
#define BOOT_ENV_VIDEO "bootargs= console=ttymxc0,115200 init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=FX100 cma=384M androidboot.selinux=disabled androidboot.dm_verity=disabled no_console_suspend=1 enable_wait_mode=off \0"
#else
#define BOOT_ENV_VIDEO "bootargs= console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=FX100 cma=384M androidboot.selinux=disabled androidboot.dm_verity=disabled no_console_suspend=1 enable_wait_mode=off \0"
#endif

#endif

#define CONFIG_EXTRA_ENV_SETTINGS \
"splashpos=m,m\0" \
"fdt_high=0xffffffff\0" \
"initrd_high=0xffffffff\0" \
BOOT_ENV_VIDEO \

I tried to add config in my own design make file and set it into BOOT_ENV_VIDEO.

In mx6sabresd_common.h will include mx6sabreandroid_common.h and add define with CONFIG_EXTRA_ENV_SETTING.

But even I set command line here u-boot environment still not change after I update image via mfgtool.

What did miss?

Thanks in Advanced!