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From 03/24/2013 to 04/22/2013

04/22/2013

06:09 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
*formation to u-boot supports.* I mean "format that u-boot supports". Sorry, spell check.... Michael Karasoff
06:07 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
And also, I'm assuming that the bootloader environment section falls into the same category as u-boot.img. That is, ... Michael Karasoff
06:02 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Mike,
OK, this makes sense. Sorry for being a bit slow on the uptake. The issue isn't the flash per-se, its matc...
Michael Karasoff
05:34 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
It depends on whether you want to be able to (re)flash a bootable MLO from linux. If the linux kernel does not suppo... Michael Williamson
05:27 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
_We have to look at the kernel as well to see how it deals with the device._
Does this mean there may be an issue ...
Michael Karasoff
03:46 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Mike,
booting from MMC first sounds like a good plan to me :)
as for the XIP/wait... if the bootrom is not stalling...
Tim Iskander
02:58 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Tim,
Thanks. We bit 9 set to zero, we no longer get curious boottime ECC error messages we were getting on the DD...
Michael Karasoff
02:45 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
The good news is I think we have found the cause of the issue.
When the 335x boot ROM sees the 4K page size in the N...
Tim Iskander
09:14 AM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Mike
While I chase down the block size issue, other Mike pointed out that you have bit 9 of the SYSBOOT pins as a 1....
Tim Iskander

04/20/2013

04:39 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Mike,
Thanks for the quick reply.
For our application, the 256MB flash is not a problem, but our current desi...
Michael Karasoff
02:04 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Hi Mike,
We are still chasing this here. The 2K vs. 4K page size issue may not be correct for the 512 MB (it came...
Michael Williamson
01:42 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Tim,
Thanks for the tip.
I'm a bit uneasy hacking the bootloader for hardware that I didn't design and don't...
Michael Karasoff

04/19/2013

04:02 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
A quick update...
I have not had a chance to verify this suspicion, but the current u-boot is configured to use a 2K...
Tim Iskander

04/18/2013

01:06 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
I will be looking in to this very soon and will report back.
cheers
/Tim
Tim Iskander
12:18 PM Software Development: RE: DDR3 Factory EEPROM Incorrect
Tim,
Thanks. The system did seem to boot fine from MMC with the MLO/u-boot built from git.
At this point I'm m...
Michael Karasoff
07:24 AM Software Development: RE: DDR3 Factory EEPROM Incorrect
Michael
The DDR3 modules require the newer version of u-boot (and MLO). From the output you have listed above, the f...
Tim Iskander

04/17/2013

11:10 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
I think I am having the same problem as Kim.
I use similar scripts:
mmc rescan; mw.b 0x82000000 0xFF 0x80000; f...
Michael Karasoff
10:25 PM Software Development: RE: DDR3 Factory EEPROM Incorrect
Just rebuilt u-boot.img out of git, and now my system boots fine.
Still curious about what is in the factory EEPRO...
Michael Karasoff
09:37 PM Software Development: DDR3 Factory EEPROM Incorrect
We received a batch of AM335x boards with 512MB RAM/NAND that appear to have no factory configuration programmed:
...
Michael Karasoff

04/16/2013

08:36 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
I have programmed both MLO and u-boot with the same results. It appears MLO is not loading & running. Why are the NAN... Kim Weller
05:19 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Hi,
Other than the fact that the selected boot mode will try to use the UART first over the NAND (and you aren't p...
Michael Williamson

04/12/2013

03:49 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
... Kim Weller
03:37 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Thanks.
What are your boot jumper settings?
-Mike
Michael Williamson
03:34 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Here's my programming steps with NAND OOB info.:
U-Boot# nand bad
Device 0 bad blocks:
00780000
U-Boot# mmc...
Kim Weller
03:15 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Could you provide any details on what your FLASH procedure is and what you are seeing when you try to boot?
What b...
Michael Williamson
03:12 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Yes, MLO & u-Boot were rebuilt for DDR3 and ran fine on the 3354 w/ DDR3 booting from SD card.
-Kim
Kim Weller
02:45 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Errr.... any more details than that???
The MLO and u-Boot images must be updated for the 3354 DDR3 configuration. ...
Michael Williamson
02:38 PM Software Development: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
Customer states that they are having difficulty flashing MLO and U-Boot into the 3354-GX-X38 module. No issues encou... Omar Rahim

04/11/2013

10:57 AM Software Development: RE: Assigning params from memory in u-boot
We finally have something that will work, but is not ideal. By using itest we look to see which
of our images is th...
Anonymous

04/10/2013

03:33 PM Software Development: RE: Assigning params from memory in u-boot
John C.,
Looks like md might do what you want.
/* Memory Display
*
* Syntax:
* md{.b, .w, .l} {addr}...
Jonathan Cormier
03:21 PM Software Development: RE: Assigning params from memory in u-boot
John C.
Heres a link to the source code for the itest command.
http://support.criticallink.com/gitweb/?p=u-boot-m...
Jonathan Cormier
02:47 PM Software Development: RE: Assigning params from memory in u-boot
Tim and Mike,
I found this command that works in testing the contents of memory. Is there any way to get that...
Anonymous
08:40 AM Software Development: RE: Assigning params from memory in u-boot
Thanks Tim and Mike,

I think that unless it is an easy port of updating/saving the u-boot environment param...
Anonymous
08:15 AM Software Development: RE: Assigning params from memory in u-boot
Not sure if this will do what you really want, but if you load the image from flash (read the max image size into ram... Tim Iskander
07:13 AM Software Development: RE: Assigning params from memory in u-boot
Hi John,
u-Boot doesn't really have much for interpretative type scripting. I don't think you can accomplish this...
Michael Williamson

04/09/2013

10:38 PM Software Development: RE: Assigning params from memory in u-boot
Hey Jonathan,

The issue is that we are burning our image into flash from our StarterWare c...
Anonymous
04:35 PM Software Development: RE: Assigning params from memory in u-boot
I'm unsure how to do what your looking for. All the references I could find have you set the image size in an enviro... Jonathan Cormier
04:08 PM Software Development: Assigning params from memory in u-boot
Hi,
Were are in the final stages of booting our StarterWare image from uboot. Currently we have our compressed ...
Anonymous

04/04/2013

03:07 PM Software Development: RE: No unzip in MityArm uboot?
Thanks Jonathan,
I added #define CONFIG_CMD_UNZIP to the file, rebuilt u-boot and burned it into NAND. So I ...
Anonymous
12:31 PM Software Development: RE: No unzip in MityArm uboot?
In the file include/configs/mityarm335x.h you need to insert
_#define CONFIG_CMD_UNZIP_
Jonathan Cormier
12:10 PM Software Development: RE: No unzip in MityArm uboot?
Where is the board header file?
Thanks,
John C.
Anonymous
11:37 AM Software Development: RE: No unzip in MityArm uboot?
You will probably need to rebuild it and enable the optioncommand by adding a CMD_XXX (CMD_ZIP? would need to check) ... Michael Williamson
10:38 AM Software Development: No unzip in MityArm uboot?
Hi,
We are running the critical link u-boot version(below) on the MityArm and it appears that there is not a ...
Anonymous

03/26/2013

07:12 PM PCB Development: RE: VBACKUP Current Draw
Mark,
Great catch! This is certainly acceptable, and we'll likely modify either our u-boot code or kernel code to...
Michael Williamson
05:54 PM PCB Development: RE: VBACKUP Current Draw
Mike,
I tested the AM3354 DDR3 module here as well and also saw the ~10uA current draw on VBACKUP.
One other th...
Anonymous
05:25 PM PCB Development: RE: VBACKUP Current Draw
Hi Mark,
For the DDR2 modules, I'm pretty sure you need the -1C revision for the fix. However, the AM3354 DDR3 mo...
Michael Williamson
05:07 PM PCB Development: RE: VBACKUP Current Draw
Hi Mike,
Thanks for the quick response. I believe I have modules covered in the errata. Of the three modules I'v...
Anonymous
04:08 PM PCB Development: RE: VBACKUP Current Draw
Hi Mark,
We need to confirm what revision of module you have (there was Errata on earlier modules where the VBACKU...
Michael Williamson
03:54 PM PCB Development: VBACKUP Current Draw
I am attempting to replicate the VBACKUP current draw information you supplied in the Hardware Design section of the ... Anonymous
 

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