AM572x custom board SD card boot error

Hein Thet Aung

Intellectual 280 points

Other Parts Discussed in Thread: AM5726, PMP

Hi,

I am trying to boot my from custom board using AM5726.

Below is my debug output while booting from SD card. I am using the pre-built image for GP EVM.

Could this be hardware issue? Do I need to rebuilt the SDK for AM5726?

Regards,
Hein

U-Boot SPL 2016.05-00118-gdd926c6-dirty (Nov 17 2016 - 11:57:28)
DRA752-GP ES2.0
Trying to boot from MMC1
reading args
spl_load_image_fat_os: error reading image args, err - -1
reading u-boot.img
reading u-boot.img
reading u-boot.img
No matching DT out of these options:
   am57xx-beagle-x15
   am572x-idk
   am571x-idk
Failed to mount ext2 filesystem...
spl_load_image_ext_os: ext4fs mount err - 0
Failed to mount ext2 filesystem...
spl_load_image_ext: ext4fs mount err - 0

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

The software team will look at this and respond here. My comment is that you cannot expect the prebuilt EVM image to work on your custom board, unless it's absolutely identical to the EVM. Moreover, this can be dangerous as it may cause I/O conflicts due to incorrect pinmux.

0 Pavel Botev over 8 years ago

TI__Guru**** 170625 points

Hi Hein,

Running u-boot on AM572x EVM we have:

U-Boot SPL 2016.05-00118-gdd926c6-dirty (Oct 11 2016 - 17:55:31)

DRA752-GP ES1.1

Trying to boot from MMC1

reading args

spl_load_image_fat_os: error reading image args, err - -1

reading u-boot.img

U-Boot 2016.05-00118-gdd926c6-dirty (Oct 11 2016 - 17:55:31 +0300)

CPU : DRA752-GP ES1.1

Board: AM572x EVM REV A.20

I2C: ready

DRAM: 2 GiB

MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1

reading uboot.env

** Unable to read "uboot.env" from mmc0:1 **

Using default environment

SCSI: SATA link 0 timeout.

AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode

flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst

scanning bus for devices...

Found 0 device(s).

Net: <ethaddr> not set. Validating first E-fuse MAC

cpsw

Hit any key to stop autoboot: 0

Can you confirm that you are using the latest AM57x TI PSDK 03_01_00_06? Do you use the create-sdcard.sh script?

Regards,
Pavel

0 Hein Thet Aung over 8 years ago in reply to Pavel Botev

Intellectual 280 points

Hi Pavel,

I am not booting from EVM. I am trying to boot my custom board using AM5726. Is this supposed to be the same?

I am using the latest AM57x TI PSDK 03_01_00_06. I created using create-sdcard.sh.

Regards,
Hein

0 Hein Thet Aung over 8 years ago in reply to Hein Thet Aung

Intellectual 280 points

I saw the same question in the link below. I will follow that link.

e2e.ti.com/.../1967140

Regards,
Hein

0 Pavel Botev over 8 years ago in reply to Hein Thet Aung

TI__Guru**** 170625 points

Hein,

Looks like you need device tree file for your u-boot. The link you follow is good for reference. You cal also see the below links:

processors.wiki.ti.com/.../Linux_Core_U-Boot_User's_Guide
e2e.ti.com/.../550758

Regards,
Pavel

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AM572x custom board SD card boot error