Activity
From 06/24/2015 to 07/23/2015
07/23/2015
- JC 11:36 AM Software Development: RE: Load DTB from NAND
- I believe the backup partition is preferable, since u-boot will save the env in both so if one becomes corrupt there will be a good copy. Note that u-boot does need to be setup to use the backup environment.
Also if you use my part... - AS 11:22 AM Software Development: RE: Load DTB from NAND
- OK. So should I increase the partition by 256KiB or should I introduce the partition "NAND.u-boot-env.backup1"?
- JC 11:20 AM Software Development: RE: Load DTB from NAND
- For the 512MB Nand an erase block is 256KB. It was 128KB on the 256MB Nand.
- AS 11:16 AM Software Development: RE: Load DTB from NAND
- Jonathan Cormier wrote:
> Angelos Spanos wrote:
> ...
Thanks for the review. Is 1 erase block assigned to every 256KiB or to every partition?
- JC 10:48 AM Software Development: RE: Load DTB from NAND
- Angelos Spanos wrote:
> Hi Jonathan,
> ...
The only problem I see is with the NAND.u-boot-env. And this is a problem you copied from our initial partition layout. Because the u-boot-env only has 1 erase block assigned to it, if this ... - AS 09:38 AM Software Development: RE: Load DTB from NAND
- Also, the solution you proposed should also work, but I haven't got around to testing it yet. If I do I will let you know.
All the best,
Angelos - AS 09:36 AM Software Development: RE: Load DTB from NAND
- The following commands were used for flashing the NAND from U-Boot:
- AS 09:32 AM Software Development: RE: Load DTB from NAND
- Hi Jonathan,
Many thanks for your pointers.
I have created a tested solution with a different partition scheme. I have added a 512KB partition at the end of the Linux filesystem. My partition layout looks as follows: - JC 09:21 AM Software Development: RE: Load DTB from NAND
- We haven't gotten to testing the NAND support for the 3.14 kernel yet. Because of this I haven't looked at rearranging the nand partitioning scheme. So lets try to come up with a workable solution.
Looking at the am335x-evm.dts and T... - Hi,
In the the text found here (https://support.criticallink.com/redmine/projects/armc8-platforms/wiki/UBIFS_Nand_Boot#512MB-NAND) the DTB file is loaded duing boot time from the MMC. I would like to change that and load it from the N...
07/22/2015
- AS 12:20 PM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- Hi Jonathan,
I have just fixed it. The following changes were done: - JC 11:49 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- Angelos Spanos wrote:
> Where is the Revision written? The Part Number is 80-00458RH-6
That is a Rev 6. So I'm not sure why your networking isn't working.
- AS 11:40 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- Jonathan Cormier wrote:
> Your welcome. I take this means you got 512MB Nand working. Were you able to use the bch16 ECC? It would be helpful if you could post your working dts file for future reference.
Correct. The DTS file has be... - JC 11:36 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- Your welcome. I take this means you got 512MB Nand working. Were you able to use the bch16 ECC? It would be helpful if you could post your working dts file for future reference.
> Now the problem is that the ethernet device is not ... - AS 11:07 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- The problem as it is described on the subject of the ticket is now resolved.
I will probably open another ticket if I can't solve the MDIO-related problem.
Many thanks for your good help and support,
Angelos - AS 06:50 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- Attaching the latest am335x-mitysom.dts file with support for 512MB NAND.
- AS 06:16 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- With the following bootargs I can enter the filesystem:
- AS 05:36 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- I have created a DTS file for the 512MB NAND. It is described below. Could you please confirm that the
07/21/2015
- JC 10:59 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- Angelos Spanos wrote:
> ??The commented out section was copied from TI's evm device tree. I've attached a patch from our internal git which sets up 256MB nand according to the above mentioned memory layout. commit-299d705.patch. This ha... - AS 10:48 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- ??The commented out section was copied from TI's evm device tree. I've attached a patch from our internal git which sets up 256MB nand according to the above mentioned memory layout. commit-299d705.patch. This hasn't been fully tested bu...
- JC 10:38 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- Angelos Spanos wrote:
> We are developping on a 3354-HX-X38-RC MitySOM. I am currently using the default am335x-mitysom.dts file, which has the partition options commented out as follows:
We are currently in the process of getting 3.14... - AS 10:12 AM Software Development: RE: Flat Device Tree source file configuration for 512MB NAND
- Adding the device tree source file used.
- We are developping on a 3354-HX-X38-RC MitySOM. I am currently using the default am335x-mitysom.dts file, which has the partition options commented out as follows:
06/25/2015
- BD 08:02 PM Software Development: RE: Is ADC supported in the 3.2 Linux build?
- Alex,
The main documentation for this is provided by TI: http://processors.wiki.ti.com/index.php/AM335x_ADC_Driver%27s_Guide
First check to see if @/sys/devices/platform/omap/ain/ain[0-7]@ exist on your booted system. If they do, p... - I need a single ADC input for an ambient light sensor, and would like to use one of the pins not needed by the MitySom 335x dev kit touch screen, ain7.
What do I need to do under the current Linux to get a single reading from this p...