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Jacinto6 Vayu EVM not booting using MLO/u-boot.img

Anthony Griffiths
Prodigy 20 points


While I realise that the Jacinto6 EVM is not strictly part of the OMAP5 family, I cannot find any other forum that comes vaguely close, so...

I have a Jacinto6 "VAYU EVM XC5777X CPU ASSY 516580 REV G" system that I cannot get to boot under Ubuntu Linux.  Having downloaded and installed the "ti-glsdk-dra7xx-evm_6_03_00_01" software, I tried building a bootable uSD card using the mksdboot.sh script and the 'board-support/prebuilt-images/" files but with *NO* success what-so-ever!  Not a peep out of the serial console.

The (current, but I've tried others) switch settings are:  SW2[0-7]/SW3[8-15]  01100000 10000001  SW5[0-9] 1010100000  SW8[1-2] 10 .  Under these setting, a QNX IFS loads off the uSD card successfully using an MLO that comes with the QNX 6.6 DSP (Board Support Package).

Assuming that the prebuilt images might not have support for my board, I installed the yocto s/w and did a complete 'build-from-scratch' of everything for the "dra7xx-evm" target.  A day later, I tried building an updated uSD card using the new MLO, u-boot.img, uImage, etc., but still no joy.  :-(

Does anyone else have a system based on this EVM card, and have it booting into Ubuntu Linux or Androis for that matter?

NB. The Jacinto6 board is part of a "Spectrum DIGITAL" Infotainment system (touch display, IO devices that number more than my fingers and toes, ...)

Tony

  • 0
    TI__Guru**** 161600 points

    Hi Tony,

    Please follow the board Quick Start Guide for sysboot configuration (SW2), to configure the board for SDCard boot.

    Then follow the instructions from this post: http://e2e.ti.com/support/omap/f/885/p/319745/1160067.aspx . This is a workaround for issue similar to yours.

    The reported problem is for rev E1 & rev E2 of Jacinto6 boards, but I think it is valid for your board (REV G) as well.

    Best Regards,

    Yordan

  • 0 in reply to Yordan Kovachev
    Prodigy 20 points

    The MLO/u-boot.img files from the 6AJ.1.2 build *did not* work, giving the same "failure to launch" problem as reported.  However, I knew there was a later build (6AK.1.0) and correctly guessed it's URL, downloaded it's prebuild tarball, and installed the much-later MLO and u-boot.img files on the uSD card.

    Lo and behold the board now booted.  If I did nothing it went into a mode trying to run 'Fastboot' which simply went off into limbo.  However, if I interrupted the automatic boot by typing a character then I got to the u-boot prompt.  Then if I executed the commands from the 'boot.script.sd' file the Ubuntu kernel was successfully loaded and booted!!!  :-)

    While a little tedious it's a vast improvement on where I was at earlier today so thank you very much Yordan.  Now all I need to do is refresh my 'busybox' memory so I can try doing something useful on the beast...

    It would be 'nice' if the MLO/u-boot.img files built by yocto with a "dra7xx-evm" target actually worked tho!

    Regards,

    Tony