Activity

From 03/10/2020 to 04/08/2020

08:27 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Srinivasa Wunnimani wrote:
> Hi,
>
> We have SOM board as per below link:
>
> https://static6.arrow.com/aropdf... Jonathan Cormier
07:40 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Srinivasa Wunnimani wrote:
> I want to test the same with pre-built binaries for u-boot V2018.01.
> Let me know whe... Jonathan Cormier
03:04 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi,
I understand your point.
Please find the log attached for SD boot and NAND boot attached.
I am trying to e... Srinivasa Wunnimani
01:06 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: huh is your sd card MLO and u-boot.img the same one you are programming into nand? Jonathan Cormier

03:33 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Is boot from nand a requirement to reproduce this?
> Yes. GPIO 0_27 (Relay chattering) happens only during NAND boo... Srinivasa Wunnimani

07:58 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Thanks for the instructions to reproduce the problem. That is helpful.
Unfortunately though with the current vir... Jonathan Cormier

12:16 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi,
We have SOM board as per below link:
https://static6.arrow.com/aropdfconversion/bd95376e672d11c623e62dac62c... Srinivasa Wunnimani

05:46 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Srinivasa Wunnimani wrote:
> *> Now my suspect is on below registers*
> GPMC_ECC_CONFIG
> GPMC_ECC_CONTROL
> GPMC... Jonathan Cormier
05:41 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Srinivasa Wunnimani wrote:
> Hi,
>
> I am little confused on sysconfig pin mux registers. Did you mean control m... Jonathan Cormier

02:01 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Forget to attach log files.
Please find log files attached.
Regards
Srinivasa Srinivasa Wunnimani
02:00 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi
> If things are crashing now, then this was probably not the correct change.
I have started debugging int... Srinivasa Wunnimani
01:12 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi,
I am little confused on sysconfig pin mux registers. Did you mean control module registers?
Anyways, I have ... Srinivasa Wunnimani

01:25 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: > To make sure pinmux is okay, copied board/cl/mityarm335x/mux.c from v2013.10 to our new u-boot v2018.01. Please fin... Jonathan Cormier
07:55 AM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi,
If things are crashing now, then this was probably not the correct change. If you double check the config7 reg... Srinivasa Wunnimani

01:09 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Srinivasa Wunnimani wrote:
> Hi,
>
> I have updated arch/arm/mach-omap2/mem-common.c as below:
>
> 132 #if def... Jonathan Cormier
09:09 AM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi,
I have updated arch/arm/mach-omap2/mem-common.c as below:
132 #if defined(CONFIG_NAND) || defined(CONFIG_CM... Srinivasa Wunnimani

03:37 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: The config7 register appears to be getting set in arch/arm/mach-omap2/mem-common.c Jonathan Cormier
06:18 AM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Sure, we will print CONTROL_MODULE_REGISTERS and update you on the same.
We want to update the source code and m... Srinivasa Wunnimani

03:58 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Note the pinmux tables can be read from memory.
See "Table 9-10: CONTROL_MODULE REGISTERS" https://support.critic... Jonathan Cormier
03:35 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi,
Thank you for your input.
Tried with below command, still same problem.
mw.w 0x50000078 48
As mentione... Srinivasa Wunnimani
02:09 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: > md.b 0x50000070 10
> mw.b 0x50000078 48
> mw.b 0x50000079 00
I would stick with using md.w and mw.w since all ... Jonathan Cormier

11:52 AM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Sorry for typo error:
I was able to manual write it to GPMC *without* any error.
Regards
Srinivasa Srinivasa Wunnimani
08:47 AM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi,
I tried to change GPMC_CONFIG7_0 to 0x48 from 0xf48 as below. I was able to manual write it to GPMC with any ... Srinivasa Wunnimani

01:41 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.: You can use md to read memory locations and mw to write them. https://www.denx.de/wiki/publish/DULG/to-delete/UBootCm... Jonathan Cormier
11:13 AM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi,
Manually means, do you want me to change GPMC_CONFIG7_0 at u-boot prompt?
Regards
Srinivasa Srinivasa Wunnimani
10:45 AM Software Development: RE: GPIO toggling/chattering while performing NAND read.: Hi,
With u-boot V2013 frequency of pulses @ ~3.571 MHz and amplitude ~150 mV.
With u-boot V2018 frequency of puls... Srinivasa Wunnimani

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