Activity
From 06/11/2014 to 07/10/2014
07/10/2014
- 05:10 PM PCB Development: RE: Time drift
- The skipping bad block is not an error but more of an info. Blocks can be marked bad from factory and during use. T...
- 04:19 PM PCB Development: RE: Time drift
- The clock is working now. Thank you.
But when we flash the nand, there is an error:
root@mityarm-335x:~# flash_... - 03:29 PM PCB Development: RE: Time drift
- So if this is the problem I'm thinking of. It was discovered that when we changed to the 3.2 kernel we weren't setti...
- 03:26 PM PCB Development: RE: Time drift
- Hey Jonathan,
Thanks again, we will definitely try this solution and let you know if it works. I would like to kno... - 03:00 PM PCB Development: RE: Time drift
- I've attached the lastest uImage but yes you can build it if you would like. Instructions are here [[Linux_Kernel]]
... - 02:57 PM PCB Development: RE: Time drift
- NAND read: device 0 offset 0x340000, size 0x500000
Skipping bad block 0x00780000
5242880 bytes read: OK
## Bootin... - 02:56 PM PCB Development: RE: Time drift
- We used the pre-build kernel image that came with the board. The kernel that in the Virtual Machine/home/mitydsp/proj...
- 08:12 AM PCB Development: RE: Time drift
- What version of the kernel came with your devkit? Could you post a boot log?
Particularly I want to know if your ...
07/09/2014
- 05:12 PM Software Development: RE: SPI clock issues with using newest u-boot
- Just pushed a fix for this.
http://support.criticallink.com/gitweb/?p=u-boot-mityarm-335x.git;a=commit;h=82762ccda72... - 04:33 PM PCB Development: RE: Time drift
- Here is our clock tree (in /sys/kernel/debug/clock/summary):
clock-name parent-name ... - 04:14 PM PCB Development: RE: Time drift
- When we boot into Linux and use the "date" (system clock) and "hwclock" (RTC I assume) commands to set/ask for time, ...
- 08:02 AM PCB Development: RE: Time drift
- Hi,
What do you mean by "hardware and software" clocks. Are you using the RTC or just the system clock? Can you ...
07/08/2014
- Hello,
We bought a MityARM335x dev kit months ago. We have noticed that the time on the board (both software and h...
07/01/2014
- 09:49 AM Software Development: RE: SPI clock issues with using newest u-boot
- U-Boot# sf probe 0:0
SF: Unsupported flash IDs: manuf ff, jedec ffff, ext_jedec ffff
Failed to initialize SPI flash... - 09:49 AM Software Development: RE: SPI clock issues with using newest u-boot
- Jonathan,
I checked with manufacturing and they do use the command in verification
of basic communication wit...
06/30/2014
- 05:06 PM Software Development: RE: SPI clock issues with using newest u-boot
- Following your lead and my hardware engineers suggestion we did a temporary check and set 0x44E00050
(CM_PER_SPI1_C... - 05:03 PM Software Development: RE: SPI clock issues with using newest u-boot
- Committed change.
http://support.criticallink.com/gitweb/?p=u-boot-mityarm-335x.git;a=commit;h=bc7833792442421a60e74... - 04:54 PM Software Development: RE: SPI clock issues with using newest u-boot
- I'm testing this change right now and am going to push a commit if it works.
- 04:48 PM Software Development: RE: SPI clock issues with using newest u-boot
- Thanks. Let me take a look and if it works.
- 04:45 PM Software Development: RE: SPI clock issues with using newest u-boot
- I think I found the problem. The memory address 0x481A0000 refers to McSPI1 and only spi0 is enabled in the u-boot.
... - 04:40 PM Software Development: RE: SPI clock issues with using newest u-boot
- We had originally set up to boot out of SPI NOR and on occasion do use that ability for
manufacturing testing. The ... - 04:16 PM Software Development: RE: SPI clock issues with using newest u-boot
- No since booting from the spi nor on our SoMs doesn't work and I wasn't aware of anyone using the nor, I didn't look ...
- 03:40 PM Software Development: RE: SPI clock issues with using newest u-boot
- Hey Jonathan,
Looking at your release without any of my mods, serial NOR was removed (no sf commands.) Was ther...
06/27/2014
- 08:26 PM Software Development: RE: SPI clock issues with using newest u-boot
- It's possible or even probable that name of the pound defines changed in this version. You can check the Readme to se...
- 04:41 PM Software Development: RE: SPI clock issues with using newest u-boot
- Hey Jonathan,
Do I only need the "#define CONFIG_SPI"? I've tried that along with (from the original mityarm35x... - 04:29 PM Software Development: RE: SPI clock issues with using newest u-boot
- It does look like SPI was not enabled in the new u-boot config. Checkout the differences in include/configs/mityarm3...
- After moving to the newest u-boot we are having issues running SPI bus. Accessing the McSPI registers (0x481A0000) ca...
06/25/2014
- 05:09 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Dirty gets appended to the version string for both u-boot and the kernel when you compile source code that has change...
- 05:05 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- I pulled the AM335XPSP_04.06.00.08 tag and there were a lot of differences. I don't think it matters
that much as we... - 04:58 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Looks like both the 03 and 08 branches have the same 2011.09 date so harder to determine which branch of code you wer...
- 04:55 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- You were likely using the code from the AM335XPSP_04.06.00.08 branch before and now should be using the u-boot-2013.1...
- 02:05 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Hey Jonathan,
Can you tell me if I were to pull a full u-boot "tree" from your "u-boot-mityarm-335x.git/tree", ... - 12:18 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Seems like when I used our NAND mlo/u-boot burn in scripts, I blasted over the old u-boot by erasing NAND from 0 to 0...
- 12:11 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Not sure what happened, but even placing the original MLO back it will not boot:
U-Boot SPL 21401-101.01.00.02-dir... - 12:02 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Booting from the mmc card now does not show that u-boot in NAND has any issues.
U-Boot# nand read 8d000000 80000 1... - 11:56 AM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Yes we decided to store everything in nand using the correct ecc so we disabled the nandecc command. So you do not n...
- 11:43 AM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Looks like we can't reach u-boot with the new MLO. We see the following and then it stops. If we plug in the
mmc, w... - 11:34 AM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Thanks Jonathan,
It seems the u-boot nandecc command has changed. We used to run the following script for
burn... - 11:17 AM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Okay. I created a FAQ about this issue incase anyone else runs into it.
https://support.criticallink.com/redmine/p... - 11:13 AM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Hey Jonathan,
Yes there is indeed an error. I'll try the newer MLO to see how that works.
Thanks,
John C... - 10:18 AM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- If you confirm there are bit flips you can then flash just the UBL into the NAND and see if it boots fine. You'll se...
- 10:13 AM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Try doing to following. It should print out bitflips if it finds them....
- 09:53 AM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Hey Jonathan,
I don't have access to a booted Linux, only u-boot. I created a text script that runs the u-boot ...
06/24/2014
- 05:19 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- That is what I'm suggesting. You can verify if this is the issue by running the 'nand dump' or 'nand read' command a...
- 05:07 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- So let me try and clarify the issue. We have been running our u-boot for about 10 months with no issues. Are you sugg...
- 04:56 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Those ecc errors are coming from reading the environment from nand. If I remember correctly the older u-boot saved t...
- 04:49 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- No nevermind, thats not correct. You do have a 256MB nand module. So the first u-boot should be correct.
- 04:47 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- U-Boot mainline:
origin/u-boot-2013.10: d35e05656457c2d3715de8c3eb7c777375c160ae
u-boot config: mityarm335x_4kpag... - 04:46 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Woops hangon didn't notice that you had a 3352 module. They have a larger nand and require a special u-boot build.
- 04:40 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Hey Jonathan,
Something is very unhappy. Here is the boot:
CCCCCCCC
U-Boot SPL 2013.10-gd35e056 (Jun 03 2014 ... - 04:28 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- There was a bug with the older u-boot where ecc was not enabled when the UBL loaded the u-boot image. This meant tha...
- 04:22 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- Here is the boot sequence:
----------------------------------------------------------------
U-Boot# CCCCCCCC
U-Boo... - 04:14 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- John,
What version of U-boot are you using? If you can include the full bootlog that would be helpful. - 03:59 PM Software Development: RE: MityARM335x profile 1 - Model No: 3352-GX-X27-RC failing memory writes in u-boot
- As added information, the mtest command works.
Commands that *do* work:
mtest 402fffe0 402ffffe A5A500FF
mtest 8... - We just received one of our units back from the field and it hangs running a "mw.b" command in the u-boot param scrip...
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