imx8mp: Flashing U-Boot into eMMC hardware partition via UUU

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Fabio Estevam

10 May 2024 10 May '24

4:19 p.m.

Hi,

I am using an imx8mp-evk board and I can flash the U-Boot into the eMMC hardware partition 0 by running:

=> tftpboot $loadaddr flash.bin => setexpr blkcnt $filesize + 0x1ff && setexpr blkcnt $blkcnt / 0x200 => mmc dev 2 1 => mmc write $loadaddr 0 $blkcnt

Now I want to do the same via UUU.

I tried to create a script called emmc_flash:

uuu_version 1.5.21

SDPS: boot -f flash.bin SDPS: done FB: ucmd setenv fastboot_dev mmc FB: ucmd mmc dev 2 1 FB: flash bootloader flash.bin FB: Done

Then on the PC: uuu emmc_flash

U-Boot is loaded to RAM, but the eMMC hardware partition is not programmed.

What is the correct script for doing this?

Any suggestions?

Thanks

Show replies by date

Michael Nazzareno Trimarchi

10 May 10 May

4:28 p.m.

On Fri, May 10, 2024 at 4:19 PM Fabio Estevam festevam@gmail.com wrote:

...

Hi,

I am using an imx8mp-evk board and I can flash the U-Boot into the eMMC hardware partition 0 by running:

=> tftpboot $loadaddr flash.bin => setexpr blkcnt $filesize + 0x1ff && setexpr blkcnt $blkcnt / 0x200 => mmc dev 2 1 => mmc write $loadaddr 0 $blkcnt

Now I want to do the same via UUU.

I tried to create a script called emmc_flash:

uuu_version 1.5.21

SDPS: boot -f flash.bin SDPS: done FB: ucmd setenv fastboot_dev mmc FB: ucmd mmc dev 2 1 FB: flash bootloader flash.bin FB: Done

Then on the PC: uuu emmc_flash

U-Boot is loaded to RAM, but the eMMC hardware partition is not programmed.

What is the correct script for doing this?

Any suggestions?

Create an lst file

Hi Fabio

Top posting

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

FB: ucmd setenv fastboot_buffer ${loadaddr} FB: download -f _image # Burn image to nandfit partition if needed FB: ucmd if env exists nandfit_part; then nand erase.part nandfit; nand write ${fastboot_buffer} nandfit ${filesize}; else true; fi; FB: ucmd nandbcb init ${fastboot_buffer} nandboot ${filesize}

FB[-t 10000]: ucmd ubi part nandrootfs FB[-t 10000]: ucmd ubi create root - FB: download -f _filesystem FB[-t 60000]: ucmd ubi write ${loadaddr} root ${filesize}

FB: download -f _kernel FB[-t 10000]: ucmd nand write ${loadaddr} nandkernel ${filesize}

FB: download -f _dtb FB[-t 8000]: ucmd nand write ${loadaddr} nanddtb ${filesize}

FB: reboot FB: done

You can just change as you want. We have this file in buildroot, uuu can run command on the device using FB command. Example how call it

${OUTPUT_DIR}/host/bin/uuu -v -b ${IMAGES_DIR}/nand-full.lst \ ${IMAGES_DIR}/flash.bin \ ${IMAGES_DIR}/flash.bin \ ${IMAGES_DIR}/rootfs.ubifs \ ${IMAGES_DIR}/Image \ ${IMAGES_DIR}/freescale/imx8mn-bsh-smm-s2.dtb

Michael

...

Thanks

-- Michael Nazzareno Trimarchi Co-Founder & Chief Executive Officer M. +39 347 913 2170 michael@amarulasolutions.com __________________________________ Amarula Solutions BV Joop Geesinkweg 125, 1114 AB, Amsterdam, NL T. +31 (0)85 111 9172 info@amarulasolutions.com www.amarulasolutions.com

Fabio Estevam

5:10 p.m.

Hi Michael,

On Fri, May 10, 2024 at 11:28 AM Michael Nazzareno Trimarchi michael@amarulasolutions.com wrote:

...

You can just change as you want. We have this file in buildroot, uuu can run command on the device using FB command. Example how call it

Thanks for sharing the example.

I adapted the UUU script like this:

SDPS: boot -f flash.bin FB: ucmd setenv fastboot_buffer ${loadaddr} FB: ucmd mmc dev 2 1 FB: download -f flash.bin FB: ucmd setexpr blkcnt $filesize + 0x1ff FB: ucmd setexpr blkcnt $blkcnt / 0x200 FB: ucmd mmc write $loadaddr 0 $blkcnt FB: reboot FB: done

Did the following changes based on imx8mn_bsh_smm_s2pro:

+#include <common.h> +#include <asm/arch/sys_proto.h> #include <env.h>

int board_init(void) @@ -17,5 +19,11 @@ int board_late_init(void) env_set("board_rev", "iMX8MP"); #endif

+ if (is_usb_boot()) { + printf("***** Entering in USB download mode\n"); + env_set("bootcmd", "fastboot usb 0"); + env_set("bootdelay", "0"); + } + return 0; } diff --git a/include/configs/imx8mp_evk.h b/include/configs/imx8mp_evk.h index 1759318fdd35..148b36bd3169 100644 --- a/include/configs/imx8mp_evk.h +++ b/include/configs/imx8mp_evk.h @@ -25,8 +25,17 @@

#include <config_distro_bootcmd.h>

+#define EMMCARGS \ + "fastboot_partition_alias_all=" \ + __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) ".0:0\0" \ + "fastboot_partition_alias_bootloader=" \ + __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) ".1:0\0" \ + "emmc_dev=" __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) "\0" \ + "emmc_ack=1\0" \ + /* Initial environment variables */ #define CFG_EXTRA_ENV_SETTINGS \ + EMMCARGS \ BOOTENV \ "scriptaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \ "kernel_addr_r=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \

and now UUU correctly flashes the eMMC hardware partition.

Thanks a lot,

Fabio Estevam

Michael Nazzareno Trimarchi

5:49 p.m.

Hi Fabio

On Fri, May 10, 2024 at 5:10 PM Fabio Estevam festevam@gmail.com wrote:

...

Hi Michael,

On Fri, May 10, 2024 at 11:28 AM Michael Nazzareno Trimarchi michael@amarulasolutions.com wrote:

...
You can just change as you want. We have this file in buildroot, uuu can run command on the device using FB command. Example how call it

Thanks for sharing the example.

I adapted the UUU script like this:

SDPS: boot -f flash.bin FB: ucmd setenv fastboot_buffer ${loadaddr} FB: ucmd mmc dev 2 1 FB: download -f flash.bin FB: ucmd setexpr blkcnt $filesize + 0x1ff FB: ucmd setexpr blkcnt $blkcnt / 0x200 FB: ucmd mmc write $loadaddr 0 $blkcnt

My suggestion is use timeout of some command when is possible

...

FB: reboot FB: done

Did the following changes based on imx8mn_bsh_smm_s2pro:

index 024b46ef8bc2..0b6026c34309 100644 --- a/board/freescale/imx8mp_evk/imx8mp_evk.c +++ b/board/freescale/imx8mp_evk/imx8mp_evk.c @@ -3,6 +3,8 @@

Copyright 2019 NXP

*/

+#include <common.h> +#include <asm/arch/sys_proto.h> #include <env.h>

int board_init(void) @@ -17,5 +19,11 @@ int board_late_init(void) env_set("board_rev", "iMX8MP"); #endif
  if (is_usb_boot()) {
          printf("***** Entering in USB download mode\n");
          env_set("bootcmd", "fastboot usb 0");
          env_set("bootdelay", "0");
  }

I think that is kind of good example

...

    return 0;
} diff --git a/include/configs/imx8mp_evk.h b/include/configs/imx8mp_evk.h index 1759318fdd35..148b36bd3169 100644 --- a/include/configs/imx8mp_evk.h +++ b/include/configs/imx8mp_evk.h @@ -25,8 +25,17 @@

#include <config_distro_bootcmd.h>

+#define EMMCARGS \
  "fastboot_partition_alias_all=" \
          __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) ".0:0\0" \
  "fastboot_partition_alias_bootloader=" \
          __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) ".1:0\0" \
  "emmc_dev=" __stringify(CONFIG_FASTBOOT_FLASH_MMC_DEV) "\0" \
  "emmc_ack=1\0" \
/* Initial environment variables */ #define CFG_EXTRA_ENV_SETTINGS \
  EMMCARGS \
  BOOTENV \
  "scriptaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
  "kernel_addr_r=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
and now UUU correctly flashes the eMMC hardware partition.

Thanks a lot,

No problem

Micheal

...

Fabio Estevam

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Fabio Estevam
Michael Nazzareno Trimarchi