Activity
From 04/14/2013 to 05/13/2013
05/13/2013
- According to the MityArm 335x Datasheet the minimum input voltage is 3.2VDC and the typical is 3.3VDC. Is the minimum...
05/01/2013
- 03:52 PM Software Development: RE: Pin Mux on AM3359
- Thanks Tim I think I am on the right track now.
I made the following changes in baseboard-mityarm335x-edvkit.c:
<... - 11:36 AM Software Development: RE: u-boot question
- Thanks Tim,
That would do it.
John C. - 11:34 AM Software Development: RE: u-boot question
- John
That ID string is actually being printed by the MLO, not u-boot.
You'll need to reflash the MLO to see the cha... - Hi,
We have the older MITYARM 335x modules with the DDR2 and have done minor tweaking to u-boot (as in adding u...
04/30/2013
- 05:28 PM Software Development: RE: Linux Can't Detect Module NAND on Custom Carrier
- Thats great news... I'll tuck that bit of info away for later!
cheers
/Tim - 04:58 PM Software Development: RE: Linux Can't Detect Module NAND on Custom Carrier
- We got to the bottom of this. We had some pullups on some of the higher order SYSCONFIG bits, setting boot clock to ...
- 01:43 PM Software Development: RE: Linux Can't Detect Module NAND on Custom Carrier
- Tim,
Thanks. I've checked the pinmux settings and could find nothing that struck me as incorrect. We are using t... - 07:08 AM Software Development: RE: Linux Can't Detect Module NAND on Custom Carrier
- Mike,
Check the pinmux settings and connections for the rest of the GPMC signals. I would think if there was an elec... - 12:32 PM Software Development: RE: Pin Mux on AM3359
- Brian
On the AM335X based SOM's the linux kernel (assuming you are using linux) will need to configure all of the pi... - I am working with a AM3359 dev kit and need to get UART 1 and 2 working. As I understand they are configured for CAN...
04/29/2013
- Hello,
We are having a odd problem with a custom carrier, and wondering if anyone has come across a similar situat... - 10:20 AM Software Development: RE: MityArm u-booting from SPI flash
- Mike,
I should also mention that on TI's wiki page (at the bottom) they mention that when you do build uboot fo...
04/26/2013
- 03:58 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
- Just a pre-weekend update...
We had to switch from the TI PSP u-boot to the mainline u-boot, which is what has kept ... - 10:35 AM Software Development: RE: MityArm u-booting from SPI flash
- Hey Mike,
Our SPI flash is external (on our base card on SPI bus 0), so there should not be an issue boo... - 10:18 AM Software Development: RE: MityArm u-booting from SPI flash
- Just to confirm,
You are using a MityARM-335X, right?
Are you trying to use the on-board SPI, or an external SP... - Hi,
I know we had asked about this previously but was hoping to get a little help with the flags and config f...
04/24/2013
- 01:16 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
- Mike
unfortunately, that was just a secondary issue. Currently there is no support for the 4K page size NAND in any ... - 12:03 PM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
- Tim,
Thanks. Does this resolve the issue, or do you still need to modify ECC on the MLO? - 07:31 AM Software Development: RE: Difficulty in flashing MLO and U-Boot to the AM3354 with 512MB NAND
- Mike
I discovered this same issue yesterday. The mtdparts in the kernel where set up for the 256MB part and not upda... - 12:07 AM PCB Development: RE: 1GHz AM335x
- Hi Mark -
The revision "A" silicon from TI refers to silicon revision 2.0. The current revisions use the revision ...
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...
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