Activity

From 07/01/2014 to 07/30/2014

09:43 AM Software Development: RE: SPI clock issues with using newest u-boot: Yeah by using the ti_ 335x include files I was hoping to greatly simplify our config file. Hopefully it hasn't cause... Jonathan Cormier
09:31 AM Software Development: RE: SPI clock issues with using newest u-boot: Ok,
I knew it had to be in there somewhere, was just a bit confused
as the original mityarm335x.h had a nice ... Anonymous
09:26 AM Software Development: RE: SPI clock issues with using newest u-boot: Pretty sure I found "#define CONFIG_SPI" in one of the ti_ config files that get included. Jonathan Cormier
09:25 AM Software Development: RE: SPI clock issues with using newest u-boot: Yes the Micron N25Q00AA does support the 48Mhz clock. The sf erase still seems longer
but I'll need to time it get ... Anonymous

05:26 PM Software Development: RE: SPI clock issues with using newest u-boot: Also make sure your Nor chip supports 48Mhz on the spi bus. Jonathan Cormier
05:25 PM Software Development: RE: SPI clock issues with using newest u-boot: Did you notice any time difference with the slower speed? Jonathan Cormier
03:30 PM Software Development: RE: SPI clock issues with using newest u-boot: I took out the CONFIG_SPI_FLASH_BAR define and it now seem to pass the long erase command.
-----------------------... Anonymous
02:23 PM Software Development: RE: SPI clock issues with using newest u-boot: It may be perfectly fine with the generic name then.
Try changing the spi clock speed and see if you get different... Jonathan Cormier
02:19 PM Software Development: RE: SPI clock issues with using newest u-boot: I added the CONFIG_SPI_FLASH_BAR define to mityarm335x.h and the warning is goes away on the "sf probe" command.
I a... Anonymous
01:38 PM Software Development: RE: SPI clock issues with using newest u-boot: 1) I'm not sure why its detecting it differently. Maybe the newer u-boot has a more specific driver for this chip?
... Jonathan Cormier
12:44 PM Software Development: RE: SPI clock issues with using newest u-boot: Hey Johnathan,
Testing out the new spi bus changes seem fine. I do have two quick questions:
1) The original... Anonymous

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... Jonathan Cormier
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_... Bindu Jagannatha
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... Jonathan Cormier
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... Bindu Jagannatha
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]]
... Jonathan Cormier
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... Bindu Jagannatha
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... Bindu Jagannatha
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 ... Jonathan Cormier

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... Jonathan Cormier
04:33 PM PCB Development: RE: Time drift: Here is our clock tree (in /sys/kernel/debug/clock/summary):
clock-name parent-name ... Bindu Jagannatha
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, ... Bindu Jagannatha
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 ... Michael Williamson

03:06 PM PCB Development: Time drift: Hello,
We bought a MityARM335x dev kit months ago. We have noticed that the time on the board (both software and h... Bindu Jagannatha

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... Anonymous
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... Anonymous

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Mity CPU Platforms » MitySOM-335x (ARM Cortex-A8 Based Products)