Hi Michael,
On Mon, Jun 26, 2023 at 07:03:19AM +0200, Michael Nazzareno Trimarchi wrote:
Hi all
Il sab 20 mag 2023, 19:28 Colin Foster colin.foster@in-advantage.com ha scritto:
On Fri, May 19, 2023 at 03:41:34PM +0300, Roger Quadros wrote:
Hi Colin,
On 19/05/2023 02:19, Colin Foster wrote:
Hi Roger,
Can you please share your spl/u-boot.cfg?
Attached
Couple of questions there
- CONFIG_MTDPARTS_DEFAULT
"mtdparts=nandflash:0x20000(xload_raw),0x180000(u-boot),0x180000(u-boot-2),0x1fce0000(main)"
Is this correct and matches with what kernel sees? I couldn't see the NAND partition table in the Kernel Device tree patch.
Yes, this is correct. I intentionally left my MTD Partitions out of the kernel patch, since I don't want any changes I might make to the flash partitions to require further patches. I'm currently at this structure (SPL, 2x U-Boot, and main UBI with A/B partitions and 2x U-Boot Envs)
The SD Boot version of U-Boot doesn't use NAND, so it might have a stale partition layout that I'll need to remove / modify.
Was any end up here?
I got pulled away from this before I could figure it out, but I have an idea.
I suspect the ECC calculation is working as expected. It is just that now it is pre-calculating the ECC for regions that my flash writing was simply ignroing (just leaving erased). Previously the ECC would only be calculated for pages that were correctly written, so wouldn't cause any issues.
I do need to verify this hypothesis, but admittedly don't know how soon that'll be. (I won't be near hardware for at least a week)
Michael