Hi Andy,
You can load u-boot to your board via JTAG. You'd need a JTAG and a
working GEL file for your board which you probably already have.
Code Composer Studio can load elf files, so assuming that your DDR is
initialized correctly (by the GEL file), you can load a compiled u-boot
executable (I mean elf file, not bin or s-record file) Peter posted a
patch for u-boot-1.1.6 which, according to him, has extensive support
for NOR flashes.
Good luck,
Ivan
Andy Ngo wrote:
Peter,
I understand what you are saying, but that assumes all of my custom
board hardware is
working and that I have u-boot working already working. I'm talking
about the first time I attempt
to put u-boot (or any flash image) on the board; since my flash is
different than that of the
DVEVM, how do I do that? I can't use the DvFlasher as that was meant
specifically
for the AMD28LV256 flash on the DVEVM. TI told me that I have to
modify the DVFlasher
code to work for my flash which can take me a while since there's no
support.
Yeah, I understand if I have u-boot already working on my custom
board, I'm pretty much
far along in bringing up my board. That's why I wonder if anyone has
tried using a
boundary scan tool to flash their brand new board (we have a boundary
scan setup
expert) and not having to deal with writing software (DVFlasher) to
flash the initial
u-boot image.
Regards,
Andy
----- Original Message ----
From: Peter Wippich <[EMAIL PROTECTED]>
To: Andy Ngo <[EMAIL PROTECTED]>
Cc: "davinci-linux-open-source @linux.davincidsp.com"
<[email protected]>
Sent: Saturday, March 10, 2007 6:12:54 AM
Subject: Re: Using boundary scan tool to program NOR flash
Hi Andy,
you may also try to boot the board over the UART and than use u-boot to
flash your board. Worked fine for us. As long as your flash is CFI
compliant this should work with nearly every flash chip.
Ciao,
Peter
On Fri, 9 Mar 2007, Andy Ngo wrote:
> Hi,
>
> Next week, our custom Davinci bread board will be in for me to start
bringing it up. The memory parts (NOR flash, DDR)
> are different than those of the DVEVM. I plan to use the XDS510 or
XDS560 JTAG emulator to test those components
> first to make sure they work. As for flashing the u-boot image,
since the NOR flash on our board is different than that
> of the DVEVM, I can't use the FlashWriter (from Spectrum Digital) to
program the NOR flash. A TI tech gave me the
> source code for the FlashWriter but said that the code is "poorly
written" and TI has no support for it so I'm on my own.
>
> Well, in the past, we have use the Corelis boundary scan tool to
directly program the flash of most of our boards.
> Has anyone try programming the flash on the DVEVM with a boundary
scan tool like Corelis or ASSET? This will be
> a lot easier than having to deal with the FlashWriter code.
>
> How do you think I should approach this in bringing our board and
flashing u-boot? Your advice is appreciated! Thanks!
>
> Regards,
> Andy
| Peter Wippich Voice: +49 30 46776411 |
| G&W Instruments GmbH fax: +49 30 46776419 |
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