Activity
From 03/25/2013 to 04/23/2013
04/23/2013
- 10:53 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
- Out of idle curiosity, I ran mtdinfo on both boards:
For the 256MB:
mtd1
Name: SPL
Ty... - 04:14 PM PCB Development: RE: 1GHz AM335x
- Hi -Mike- Mark (sorry),
Couple of comments.
* The PMIC should support the higher current (specs range from 1A m... - TI added 800 MHz and 1 GHz operating points in the latest data sheet for Rev A or newer AM335x processors along with ...
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....
- 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, ...
- 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... - 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...
- 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 ... - 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... - 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... - 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... - 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....
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... - 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... - 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...
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...
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 - 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... - 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...
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... - 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... - We received a batch of AM335x boards with 512MB RAM/NAND that appear to have no factory configuration programmed:
...
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...
- 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...
04/12/2013
- 03:49 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
- ...
- 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
- 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... - 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... - 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
- 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. ... - Customer states that they are having difficulty flashing MLO and U-Boot into the 3354-GX-X38 module. No issues encou...
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...
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}... - 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... - 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... - 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... - 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...
- 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...
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... - 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...
- Hi,
Were are in the final stages of booting our StarterWare image from uboot. Currently we have our compressed ...
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 ... - 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_ - 12:10 PM Software Development: RE: No unzip in MityArm uboot?
- Where is the board header file?
Thanks,
John C. - 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) ...
- Hi,
We are running the critical link u-boot version(below) on the MityArm and it appears that there is not a ...
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... - 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... - 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... - 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... - 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... - I am attempting to replicate the VBACKUP current draw information you supplied in the Hardware Design section of the ...
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