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From 03/05/2020 to 04/03/2020

03/31/2020

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

03/30/2020

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

03/28/2020

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

03/27/2020

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

03/25/2020

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

03/19/2020

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

03/16/2020

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

03/14/2020

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

03/11/2020

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

03/09/2020

03:02 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.
If you manually set GPMC_CONFIG7_0 back to 48, does the activity on GPIO 0_27 stop?
Jonathan Cormier
02:27 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.
Srinivasa,
We have not seen this before and I am reviewing your comments and logs.
Diff of GPMC registers...
Bob Duke
01:23 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.
Hi,
I have dumped the values of GPMC registers for u-boot V2013.10 and V2018 at u-boot prompt. Please find the fi...
Srinivasa Wunnimani

03/06/2020

12:08 PM Software Development: RE: GPIO toggling/chattering while performing NAND read.
Hi,
Test case 1:
Tested on u-boot Version 2013.10 from mitysom (u-boot-mityarm-335x-6c6a700.tar.gz).
Probed GPIO...
Srinivasa Wunnimani
07:25 AM Software Development: GPIO toggling/chattering while performing NAND read.
Hi,
We have mitySOM board in our product and we are using u-boot-mityarm-335x.tar.gz and building u-boot as below:...
Srinivasa Wunnimani
 

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