i.MX ProcessorsのトピックRe: saveenv is not working from uuu script

saveenv is not working from uuu script

vinothkumars — Thu, 10 Dec 2020 17:10:07 GMT

Hi All,

saveenv is not working from uuu script. Is there any configuration missing. I able to do from uboot console but not from script.

FB: ucmd saveenv

Re: saveenv is not working from uuu script

dewayne_gibson — Fri, 11 Dec 2020 21:49:24 GMT

Hello @vinothkumars

Yes sir you are missing rest of the command line requirements. See below and let me know if this helps:

To Talk with fastboot, boot linux kernel:

uuu FB: ucmd setenv fastboot_buffer ${loadaddr}
uuu FB: download -f Image
uuu FB: ucmd setenv fastboot_buffer ${fdt_addr}
uuu FB: download -f imx8qxp_mek.dtb
uuu FB: acmd booti ${loadaddr} - ${fdt_addr}

Good Luck!

DeWayne

Re: saveenv is not working from uuu script

vinothkumars — Tue, 15 Dec 2020 18:56:50 GMT

Thank you @dewayne_gibson for the reply.

Will you please share the full script. I am unable to save from uuu script.

1:13>Start Cmd:FB: ucmd mmc partconf ${emmc_dev} ${emmc_ack} 1 0
1:13>Okay
1:13>Start Cmd:FB: ucmd printenv
1:13>Okay
1:13>Start Cmd:FB: ucmd saveenv
1:13>Fail

Re: saveenv is not working from uuu script

AldoG — Thu, 17 Dec 2020 20:28:13 GMT

Hello,

Does uboot output something?
Also, please share the script you're using

Regards,
Aldo.

Re: saveenv is not working from uuu script

dewayne_gibson — Fri, 18 Dec 2020 23:11:02 GMT

Hello @ Vinothkumar:

I provided you the UUU user guide in the earlier post.

You need only change the one line below to call the proper uuu FB: download -f imx8---_mek.dtb:

To talk with fastboot:

First Step: boot linux kernel using these commands
uuu FB: ucmd setenv fastboot_buffer ${loadaddr}
uuu FB: download -f Image
uuu FB: ucmd setenv fastboot_buffer ${fdt_addr}
uuu FB: download -f imx8qxp_mek.dtb
uuu FB: acmd booti ${loadaddr} - ${fdt_addr}
Extended environment for fastboot
fastboot_buffer Image download address
fastboot_bytes reflect previous download image byte size

Last Step: write image to emmc
uuu FB: flash -raw2sparse all <image file>

You will not be able to save the commands that you script in UUU. UUU is not an editor utility. If you want to save the script commands you are using, create and save to a text file or USE the XML2 method instead of UUU commands.

Regards and Good Luck!

DeWayne

Re: saveenv is not working from uuu script

MicMoba — Wed, 08 Sep 2021 06:02:29 GMT

Hi,
is there a solution? I have the same issue. I am able to flash my emmc and I can call all uboot commands but saveenv is not working.

Flash of emmc:
uuu.exe -v -b emmc_all uboot.bin image.wic

After successful flashing I want to reset and save my environment

uuu.exe FB: ucmd env default -a
>Okay

uuu.exe FB: ucmd saveenv
>Error:

Unfortunately uuu tool does not print out any error. The serial console prints also nothing.

In general the serial console prints two errors:

## Error: Can't overwrite "serial#"
## Error inserting "serial#" variable, errno=1
Detect USB boot. Will enter fastboot mode!
request 00000000bdf3e1c0 was not queued to ep1in-bulk

But I don't know if this has something to do with the saveenv issue.

The reason why I want to set my environment to default and save it is because I use a redundant environment and only with a saveenv it will be stored to flash. If it is not stored to flash I wouldn't be able to use fw_printenv and fw_setenv out of rootfs.

Is there another possibility to save the environment initialy?

Re: saveenv is not working from uuu script

MicMoba — Wed, 08 Sep 2021 08:59:29 GMT

Okay, I think I know why saveenv doesn't work.

This prints the serial console after I load the bootloade into RAM and start in fastboot mode:
...
Loading Environment from nowhere... OK
In:    serial
Out:   serial
Err:   serial

BuildInfo:
- ATF f1d7187
- U-Boot 2020.04

Detect USB boot. Will enter fastboot mode!
Net:
Warning: ethernet@30bf0000 using MAC address from ROM
eth1: ethernet@30bf0000 [PRIME]
Fastboot: Normal
Boot from USB for mfgtools
*** Warning - Use default environment for                                mfgtools
, using default environment

Because of the Serial Download Mode the environment is nowhere. And then it makes sense that the saveenv command do nothing

Re: saveenv is not working from uuu script

BiyongSUN — Wed, 08 Sep 2021 09:29:42 GMT

It is very simple reason.

The u-boot has mmcautodetect, it can detect boot from the emmc(for example) and make the u-boot environment save to that device regardless the u-boot environment.

But boot from usb, uboot will think it is not from emmc or sd or any usdhc interface.

so the mmcdev=1, not match the hardware.

even you don't issue the command uuu -v FB: ucmd env default -a. you could not saveenv, either.

You have to manually set the mmc device.

uuu -v FB: ucmd setenv mmcdev ${emmc_dev}

uuu -v FB: ucmd saveenv

By the way, uuu flash use the emmc_dev and sd_dev to do flash.

Re: saveenv is not working from uuu script

MicMoba — Wed, 08 Sep 2021 12:46:16 GMT

Hi BiyongSUN,

thanks for your reply but this doesn't work for me. I set the mmcdev to my emmc_dev but the saveenv command doesn't work either.

Re: saveenv is not working from uuu script

MicMoba — Mon, 11 Jul 2022 08:09:41 GMT

Okay, I have to reopen this case

I still have the same problem. When I run u-boot over UUU tool I can't access to the environment stored in my emmc.

If the u-boot detects that it is startet over USB and it is using a default environment. How can I get access to the environment.

Following situation:

Start device (i.MX8MP) in serial-download-mode and connect PC over USB

Load image to emmc over UUU-Tool

sudo ./uuu -b emmc_all imx-boot image.wic

The redundant environment is located at:

CONFIG_ENV_SIZE=0x10000
CONFIG_ENV_OFFSET=0x3C0000
CONFIG_ENV_OFFSET_REDUND=0x3E0000

Now I want to set an environment variable over FastBoot protocol and save the environment on the emmc.

Afterwards set boot-options to boot from emmc. Now the u-boot should work with the environment variable that I have set before over UUU-Tool and FB.

Re: saveenv is not working from uuu script

gnulux — Thu, 03 Aug 2023 21:57:47 GMT

Hi,

Did you succeed to change U-boot parameter with UUU ?

K.regards

Re: saveenv is not working from uuu script

MicMoba — Fri, 04 Aug 2023 04:18:57 GMT

Yes I was succeeded. The secret was to init and reload the environment after setting the location.

This example works for me (uboot v2021.04)

typedef enum ESource{ SOURCE_AUTO = 0, SOURCE_SD_CARD, SOURCE_MMC, }ESource; static ESource env_location = SOURCE_AUTO; void env_set_inited(enum env_location location) { /* * We're using a 32-bits bitmask stored in gd (env_has_init) * using the above enum value as the bit index. We need to * make sure that we're not overflowing it. */ //BUILD_BUG_ON(ARRAY_SIZE(env_locations) > BITS_PER_LONG); debug("%s: init environment on loc %d before: 0x%lx\n", __func__, location, gd->env_has_init & BIT(location)); gd->env_has_init |= BIT(location); debug("%s: init environment after: 0x%lx\n", __func__, gd->env_has_init & BIT(location)); } int do_set_env_location(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[]) { env_location = SOURCE_MMC; env_set_inited(ENVL_MMC); env_load(); debug("%s: set environment location to SD card\n", __func__); return 0; }

After that you have access to the environment variables. You can set and save them.

Re: saveenv is not working from uuu script

gnulux — Fri, 04 Aug 2023 21:44:42 GMT

Hi,

You mean i have to patch U-boot first ?

Regards.

Re: saveenv is not working from uuu script

BiyongSUN — Mon, 07 Aug 2023 03:29:10 GMT

I had provided the command two years ago.

Today, I have to give a demo.

Using uuu to send uboot command is exactly the same as you using uart to type uboot command to saveenv.

But you need to make sure the configuration. Because there are default settings. Or you may lose some settings.

Once you get error, please check such as emmc dev is correct or not.

HW: i.MX8MM EVK

SW: LF_v5.15.71-2.2.0_images_IMX8MMEVK

uuu_setenv.uuu(uuu_setenv.zip attached):

uuu_version 1.2.39

# This command will be run when i.MX6/7 i.MX8MM, i.MX8MQ
SDP: boot -f imx-boot-imx8mmevk-sd.bin-flash_evk

# This command will be run when ROM support stream mode
# i.MX8QXP, i.MX8QM
SDPS: boot -f imx-boot-imx8mmevk-sd.bin-flash_evk

# These commands will be run when use SPL and will be skipped if no spl
# SDPU will be deprecated. please use SDPV instead of SDPU
# {
SDPU: delay 1000
SDPU: write -f imx-boot-imx8mmevk-sd.bin-flash_evk -offset 0x57c00
SDPU: jump
# }

# These commands will be run when use SPL and will be skipped if no spl
# if (SPL support SDPV)
# {
SDPV: delay 1000
SDPV: write -f imx-boot-imx8mmevk-sd.bin-flash_evk -skipspl
SDPV: jump
# }

FB: ucmd setenv mmcdev ${emmc_dev}
FB: ucmd setenv ABC test
FB: ucmd saveenv
FB: ucmd setenv mmcdev 1
FB: ucmd saveenv
FB: done

Log:

uuu log

dev 2 is emmc and dev 1 is sdcard/tf card.

The script saves the env to the emmc first. Then it switches to the sdcard and save again.

boot and check

Re: saveenv is not working from uuu script

BiyongSUN — Mon, 07 Aug 2023 03:49:33 GMT

What you can do with uboot command through uart, you can do the exactly the same through uuu.

The difference I had told two years ago.

The u-boot has mmcautodetect, it can detect boot from the emmc(for example) and make the u-boot environment save to that device regardless the u-boot environment.

But boot from usb, uboot will think it is not from emmc or sd or any usdhc interface.

When you use "uuu -v FB: ucmd env default -a", the mmcdev will become 1.

That is why you saveenv will get fail.

uuu -b spl imx-boot-imx8mm-lpddr4-evk-sd.bin-flash_evk

uuu -v FB: ucmd env default -a
uuu -v FB: ucmd print mmcdev
uuu -v FB: ucmd saveenv
uuu -v FB: ucmd print emmc_dev
uuu -v FB: ucmd setenv mmcdev ${emmc_dev}
uuu -v FB: ucmd saveenv

## Checking Image at 43800000 ...
Unknown image format!
Run fastboot ...
## Resetting to default environment
Detect USB boot. Will enter fastboot mode!
mmcdev=1
Detect USB boot. Will enter fastboot mode!
Saving Environment to MMC... MMC: no card present
No block device
Failed (1) fastboot mode!
Detect USB boot. Will enter fastboot mode!
Saving Environment to MMC... Writing to MMC(2)... OK
Detect USB boot. Will enter fastboot mode!

Re: saveenv is not working from uuu script

gnulux — Mon, 07 Aug 2023 14:07:43 GMT

Hi ,

Sorry to bother, you're right and i understood well the case. Except that on my board (Not EVK) I have another behavior i would like to fix.

With your uuu_setenv , i have the error : Saving Environment to nowhere... not possible

uuu_version 1.2.39 # This command will be run when i.MX6/7 i.MX8MM, i.MX8MQ SDP: boot -f LEC-IMX8MP-2G-IPi-SMARC-PLUS-UUU-TOOL_20220309 # This command will be run when ROM support stream mode # i.MX8QXP, i.MX8QM SDPS: boot -f LEC-IMX8MP-2G-IPi-SMARC-PLUS-UUU-TOOL_20220309 # These commands will be run when use SPL and will be skipped if no spl # SDPU will be deprecated. please use SDPV instead of SDPU # { SDPU: delay 1000 SDPU: write -f LEC-IMX8MP-2G-IPi-SMARC-PLUS-UUU-TOOL_20220309 -offset 0x57c00 SDPU: jump # } # These commands will be run when use SPL and will be skipped if no spl # if (SPL support SDPV) # { SDPV: delay 1000 SDPV: write -f LEC-IMX8MP-2G-IPi-SMARC-PLUS-UUU-TOOL_20220309 -skipspl SDPV: jump # } FB: ucmd setenv fastboot mmc FB: ucmd setenv mmcdev ${emmc_dev} FB: ucmd setenv ABC test FB: ucmd saveenv FB: ucmd setenv mmcdev 1 FB: ucmd saveenv FB: done

UUU output :

1:13>Start Cmd:FB: ucmd setenv fastboot mmc
1:13>Okay (0.01s)
1:13>Start Cmd:FB: ucmd setenv mmcdev ${emmc_dev}
1:13>Okay (0.01s)
1:13>Start Cmd:FB: ucmd setenv ABC test
1:13>Okay (0.01s)
1:13>Start Cmd:FB: ucmd saveenv
1:13>Fail (0.011s)

I have checked with command lines , and FB enable emmc 2 . I can flash fat and rootfs without problem. But only the savenv failed (trying to set mac addresses during flash)

Console output :

U-Boot 2021.04-lf_v2021.04+g263b27e076 (Nov 22 2021 - 01:39:23 +0000) alloc space exhausted CPU: i.MX8MP[8] rev1.1 at 1200 MHz Reset cause: POR Model: Adlink lec-imx8mp LPDDR4 SOM DRAM: 2 GiB MMC: FSL_SDHC: 1, FSL_SDHC: 2 [*]-Video Link 0probe video device failed, ret -2 [0] lcd-controller@32e80000, video [1] mipi_dsi@32e60000, video_bridge In: serial Out: serial Err: serial BuildInfo: - ATF 5782363 MMC: no card present Detect USB boot. Will enter fastboot mode! Net: Warning: ethernet@30be0000 (eth0) using random MAC address - fa:22:46:75:18:a5 eth0: ethernet@30be0000 Fastboot: Normal Boot from USB for mfgtools *** Warning - Use default environment for mfgtools , using default environment Run bootcmd_mfg: run mfgtool_args;if iminfo ${initrd_addr}; then if test ${tee} = yes; then bootm ${tee_addr} ${initrd_addr} ${fdt_addr}; e; Hit any key to stop autoboot: 0 ## Checking Image at 43800000 ... Unknown image format! Run fastboot ... Unknown command 'setenc' - try 'help' (NULL udevice *): request 00000000bcf23d00 was not queued to ep1in-bulk Detect USB boot. Will enter fastboot mode! (NULL udevice *): request 00000000bcf23d00 was not queued to ep1in-bulk Detect USB boot. Will enter fastboot mode! (NULL udevice *): request 00000000bcf23d00 was not queued to ep1in-bulk Detect USB boot. Will enter fastboot mode! (NULL udevice *): request 00000000bcf23d00 was not queued to ep1in-bulk Saving Environment to nowhere... not possible (NULL udevice *): request 00000000bcf23d00 was not queued to ep1in-bulk

I'm wondering if it is not related to CONFIG_ENV_IS_NOWHERE=y in U-Boot ?

Regards

Re: saveenv is not working from uuu script

BiyongSUN — Tue, 08 Aug 2023 11:08:03 GMT

You can also create a scard mirror with env already set.

--- u-boot/arch/arm/mach-imx/imx8m/soc.c.orig 2023-08-08 19:06:07.627236934 +0800 +++ u-boot/arch/arm/mach-imx/imx8m/soc.c 2023-08-08 19:07:15.708770073 +0800 @@ -1713,6 +1713,9 @@ enum env_location env_get_location(enum return ENVL_UNKNOWN; switch (dev) { + case USB_BOOT: + case USB2_BOOT: + return ENVL_MMC; case QSPI_BOOT: if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH)) return ENVL_SPI_FLASH;

Re: saveenv is not working from uuu script

BiyongSUN — Tue, 08 Aug 2023 11:26:19 GMT

The alternative way. I think it is the better way to set the u-boot environment into sdcard mirror.

It is better, because this way can be used for mass production.

The idea is to use fw_setenv to set the sdcard mirror as the operation on a real emmc/sdcard.

Here is the demo.

I add test=ABCD for test purpose.

And use fw_printenv to check and use hexdump to double confirm it.

The uboot env is already written into sdcard mirror(imx-image-multimedia-imx8mpevk.wic).

Those operations are on the host x86/x64 PC.

./fw_setenv -c fw_env.config -f u-boot-initial-env Environment WRONG, copy 0 Cannot read environment, using default ./fw_printenv -c fw_env.config Environment OK, copy 0 jh_root_dtb=imx8mp-evk-root.dtb loadbootscript=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${bsp_script}; mmc_boot=if mmc dev ${devnum}; then devtype=mmc; run scan_dev_for_boot_part; fi arch=arm baudrate=115200 ......... ........ ........ splashimage=0x50000000 test=ABCD usb_boot=usb start; if usb dev ${devnum}; then devtype=usb; run scan_dev_for_boot_part; fi vendor=freescale hexdump -s 0x400000 -n 100 -C imx-image-multimedia-imx8mpevk.wic 00400000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| hexdump -s 0x400000 -n 10000 -C imx-image-multimedia-imx8mpevk.wic 00400000 5f a4 9b 97 20 6a 68 5f 72 6f 6f 74 5f 64 74 62 |_... jh_root_dtb| 00400010 3d 69 6d 78 38 6d 70 2d 65 76 6b 2d 72 6f 6f 74 |=imx8mp-evk-root| 00400020 2e 64 74 62 00 20 6c 6f 61 64 62 6f 6f 74 73 63 |.dtb. loadbootsc| 00400030 72 69 70 74 3d 66 61 74 6c 6f 61 64 20 6d 6d 63 |ript=fatload mmc| 00400040 20 24 7b 6d 6d 63 64 65 76 7d 3a 24 7b 6d 6d 63 | ${mmcdev}:${mmc| 00400050 70 61 72 74 7d 20 24 7b 6c 6f 61 64 61 64 64 72 |part} ${loadaddr| 00400060 7d 20 24 7b 62 73 70 5f 73 63 72 69 70 74 7d 3b |} ${bsp_script};| 00400070 00 20 6d 6d 63 5f 62 6f 6f 74 3d 69 66 20 6d 6d |. mmc_boot=if mm| 00401390 76 3d 31 00 73 6f 63 3d 69 6d 78 38 6d 00 73 70 |v=1.soc=imx8m.sp| 004013a0 6c 61 73 68 69 6d 61 67 65 3d 30 78 35 30 30 30 |lashimage=0x5000| 004013b0 30 30 30 30 00 74 65 73 74 3d 41 42 43 44 00 75 |0000.test=ABCD.u| 004013c0 73 62 5f 62 6f 6f 74 3d 75 73 62 20 73 74 61 72 |sb_boot=usb star| 004013d0 74 3b 20 69 66 20 75 73 62 20 64 65 76 20 24 7b |t; if usb dev ${| 004013e0 64 65 76 6e 75 6d 7d 3b 20 74 68 65 6e 20 64 65 |devnum}; then de|

Then,

I flash the sdcard mirror into i.MX8MP evk board emmc to check

uuu -b emmc_all imx-boot-imx8mp-lpddr4-evk-sd.bin-flash_evk imx-image-multimedia-imx8mpevk.wic

The first time boot, the env is already there.

How to:

a. fw_setenv/fw_printenv:

https://github.com/sbabic/libubootenv.git

Note: Please do not use uboot fw_setenv/fw_printenv

Compile it on the host x86/x64 PC. It is used on host.

b. u-boot-initial-env

Under uboot, make u-boot-initial-env

Note: Yocto deploys u-boot-initial-env by default

c. fw_env.config

imx-image-multimedia-imx8mpevk.wic 0x400000 0x4000

0x400000 0x4000 are from uboot-imx\configs\imx8mp_evk_defconfig

CONFIG_ENV_SIZE=0x4000 CONFIG_ENV_OFFSET=0x400000

Now, you can run

./fw_setenv -c fw_env.config -f u-boot-initial-env

Re: saveenv is not working from uuu script

gnulux — Wed, 09 Aug 2023 15:37:04 GMT

Hi BiyongSUN

It works fine. Many thanks

Indeed I will use this method for mass production instead of setenv from UUU.

Regards

Re: saveenv is not working from uuu script

BiyongSUN — Thu, 10 Aug 2023 04:47:29 GMT

It is great to hear it works fine on your side.

That makes me think file it into my collection, more people can see it and use it.

u-boot environment preset for sdcard mirror
https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/u-boot-environment-preset-for-sdcard-mirror/ta-p/1702549

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