Create Account
Search
You are here: TDG Forum  >>  Texas Instruments SOMs and Development Kits  >>  OMAP35x, DM3730, AM3703 Torpedo SOM Development Kit  >>   LoLo boot from SD Card

Technical Discussion Group Forum

This forum is provided for user discussion. While Beacon EmbeddedWorks support staff and engineers participate, Beacon EmbeddedWorks does not guarantee the accuracy of all information within in the Technical Discussion Group (TDG).

The "Articles" forums provide brief Articles written by Beacon EmbeddedWorks engineers that address the most frequently asked technical questions.

To receive email notifications when updates are posted for a Beacon EmbeddedWorks product download, please subscribe to the TDG Forum of interest.

TDG Forum

PrevPrev Go to previous topic
NextNext Go to next topic
Last Post 09 Feb 2012 10:15 AM by  richard.laborde@logicpd.com
LoLo boot from SD Card
 5 Replies
Sort:
You are not authorized to post a reply.
Author Messages
jsarao
New Member
New Member
Posts:29


--
06 Feb 2012 04:31 PM
    I am using the LoLo downloaded from the web site (2.5.1).
    I am following there 1021261_Release_Notes.txt
    I create a bootable SD card per instructions (LoLo Lab)
    I boot from the card.
    I have a workable losh prompt
    I can validate that I am using the lolo from the SD card as its version (2.5.1) is different from the version in NAND (2.5.0).

    I run
    losh> info var
    ...
    SYS_BOOT_DEVICE='SDMMC'


    PROBLEM:
    I cannot mount the fat32 file system to the load my uboot/linux kernel

    I try
    losh> mount fat32 /dev/sdmmc0a /sd

    [I already checked via ls /dev that sdmmc0a exists]

    Any suggestions?
    richard.laborde@logicpd.com
    Basic Member
    Basic Member
    Posts:247


    --
    08 Feb 2012 11:29 AM
    try

    losh> help mount

    - I don't know if fat32 is an acceptable option
    jsarao
    New Member
    New Member
    Posts:29


    --
    08 Feb 2012 01:10 PM
    Posted By richardl on 8 Feb 2012 11:29 AM
    try

    losh> help mount

    - I don''t know if fat32 is an acceptable option





    sorry. there was a transcription probolem

    losh> mount fatfs /dev/sdmmc0 /sd
    richard.laborde@logicpd.com
    Basic Member
    Basic Member
    Posts:247


    --
    09 Feb 2012 07:46 AM
    jsarao,

    I know if you boot from NAND that this works. I'll have to check with the apps guys or put together an SD card to see if it works from SD. I know at one point LoLo didn't allow SD card access if you booted from it. Check the release notes for other known issues.

    NoLo Version : 2.5.0
    NoLo Build : EPS-LNX-01 Thu Jun 9 13:18:26 CDT 2011
    NoLo Compiler: gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203)
    Platform : DM/AM 37x Torpedo
    Image type : Elf
    Boot Device : NAND



    *****************************************************************

    LogicLoader

    (c) Copyright 2002-2011, Logic PD, Inc. All Rights Reserved.

    LoLo Version: 2.5.0
    SOM Model Number: SOMDM3730-20-2780AGCR-2
    SOM Part Number: 1017878
    SOM Serial Number: 2111M00295

    *****************************************************************

    losh> help mount
    usage:
    mount <fstype> <device> <mpoint> [args]
    fstype can be fatfs, yaffs, emu
    args can be -ro -rw or nothing then the default is rdonly

    mount filesystem of type <fstype> on device <device> at <mpoint>

    example: mount fatfs /dev/ata0a /cf
    mount fatfs /dev/sdmmc0a /sd
    mount yaffs /dev/nand0a /yp
    mount emu /dev/flash0a /e1
    mount yaffs /e1 /yp
    losh> mount fatfs /dev/sdmmc0a /sd
    losh> cd /sd
    losh> ls
    : MLO 19904
    : u-boot.bin 258520
    : uImage 2439608
    : boot.scr 639
    D : LOST.DIR 0
    D : .android_secure 0
    D : Android 0
    D : DCIM 0
    D : pulse 0
    : Marvel's The Avengers-.mp4 30397269
    R : Marvel's The Avengers-.flv 14123896
    losh>
    richard.laborde@logicpd.com
    Basic Member
    Basic Member
    Posts:247


    --
    09 Feb 2012 09:30 AM
    jsarao,

    If you boot from sd, then /lboot should already be mounted.

    try
    losh cd /lboot
    losh> ls
    richard.laborde@logicpd.com
    Basic Member
    Basic Member
    Posts:247


    --
    09 Feb 2012 10:15 AM
    *****************************************************************

    LogicLoader

    (c) Copyright 2002-2011, Logic PD, Inc. All Rights Reserved.

    LoLo Version: 2.5.1
    SOM Model Number: SOMDM3730-20-2780AGCR-2
    SOM Part Number: 1017878
    SOM Serial Number: 2111M00295

    *****************************************************************

    losh> mount fatfs /dev/sdmmc0a /lboot
    mount point '/lboot' already exists
    unsuccessful mounterror: mount: unable to mount (/lboot)
    losh>
    You are not authorized to post a reply.

    Forums Texas Instruments SOMs and Development Kits OMAP35x, DM3730, AM3703 Torpedo SOM Development Kit