I tried to use uEnv.txt content of a similar issue:
<https://groups.google.com/forum/#!category-topic/beagleboard/u-boot/lISCItSSLGY>
bootpart=1:1
devtype=mmc
bootdir=
bootfile=zImage
bootpartition=mmcblk1p2
set_bootargs=setenv bootargs console=ttyO0,115200n8 root=/dev/${
bootpartition} rw rootfstype=ext4 rootwait
uenvcmd=run set_bootargs;run loadimage;run loadfdt;printenv bootargs;bootz $
{loadaddr} - ${fdtaddr}
It has no effect.
Could anybody help me?
<https://groups.google.com/forum/#!category-topic/beagleboard/u-boot/lISCItSSLGY>
<https://groups.google.com/forum/#!category-topic/beagleboard/u-boot/lISCItSSLGY>
<https://groups.google.com/forum/#!category-topic/beagleboard/u-boot/lISCItSSLGY>
<https://groups.google.com/forum/#!category-topic/beagleboard/u-boot/lISCItSSLGY>
2019. március 26., kedd 22:07:33 UTC+1 időpontban Roland Dobák a következőt
írta:
>
> Hello,
>
> I have created a custom image with Buildroot (Buildroot 2019.02-dirty).
> Version of kernel is v4.14 (ti-linux
> <https://git.ti.com/ti-linux-kernel/ti-linux-kernel/commit/b23de3254f8cd4166511dfd28a051358a80aa2fa>),
>
> u-boot is 2018.09 (Buildroot repo), I have tried kernel v4.14 BR repo
> too....
> I have made partitions on eMMC (mmcblk1):
>
> +-----------------------------+
> | p0: Boot partition (FAT32) |
> | MLO |
> | u-boot.img |
> | uEnv.txt |
> +-----------------------------+
> | p1: Rootfs A (EXT4) |
> +-----------------------------+
> | p2: Rootfs B (EXT4) |
> +-----------------------------+
> | p3: Application data (EXT4) |
> +-----------------------------+
>
> The MLO, u-boot.img are in fat partition and zimage and
> am335x-boneblack.dtb are in /boot on p1 and/or on p2 partition.
> BBB is able to boot on p1 partition. It works fine.
> I would like to change uEnv.txt to use p2 partition, but does not work. If
> I change anything in uEnv.txt, it won't have effect. I have changed the
> contain of txt file to meaningless text, it haven't got any effect.
> I have copied uEnv.txt to /boot folder, it haven't got any effect. If I
> delete uEnv.txt, same... It always use default environment.
> It looks like BBB does not read uEnv at all.
>
> booting:
> U-Boot SPL 2018.09 (Mar 26 2019 - 16:04:43 +0100)
> Trying to boot from MMC2
>
>
> U-Boot 2018.09 (Mar 26 2019 - 16:04:43 +0100)
>
> CPU : AM335X-GP rev 2.1
> I2C: ready
> DRAM: 512 MiB
> No match for driver 'omap_hsmmc'
> No match for driver 'omap_hsmmc'
> Some drivers were not found
> MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
> <ethaddr> not set. Validating first E-fuse MAC
> Net: cpsw, usb_ether
> Press SPACE to abort autoboot in 2 seconds
> Card did not respond to voltage select!
> Card did not respond to voltage select!
> Card did not respond to voltage select!
> Card did not respond to voltage select!
> Card did not respond to voltage select!
> switch to partitions #0, OK
> mmc1(part 0) is current device
> Scanning mmc 1:1...
> switch to partitions #0, OK
> mmc1(part 0) is current device
> SD/MMC found on device 1
> 5554048 bytes read in 358 ms (14.8 MiB/s)
> 36793 bytes read in 10 ms (3.5 MiB/s)
> ## Flattened Device Tree blob at 88000000
> Booting using the fdt blob at 0x88000000
> Loading Device Tree to 8fff4000, end 8fffffb8 ... OK
>
> Starting kernel ...
>
> [ 0.000000] Booting Linux on physical CPU 0x0
> [ 0.000000] Linux version 4.14.40
> ....
>
> The same image, when I try to boot from SD card, it is able to use
> uEnv.txt, if I do wrong anything it won't boot.
>
> What should I do? How to force u-boot to use uEnv.txt during booting from
> eMMC?
>
> Thank you in advance.
>
>
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