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2017.07 kirkwood uboot for dlink dns-325 ?

Posted by octalis 
2017.07 kirkwood uboot for dlink dns-325 ?
May 27, 2021 06:52PM
With latest kernels > 2MiO my Dlink dns-325 refuse to boot with CRC error

Eg :


## Booting kernel from Legacy Image at 01000000 ...
   Image Name:   uImage
   Created:      2021-05-27  22:58:38 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    5381888 Bytes = 5.1 MiB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... Bad Data CRC
ERROR: can't get kernel image!


I tried the kernel from buster-backports and the one from bodhi on this forum. Same result.

I am using u-boot 2014.01 ; and I read that old versions of u-boot may have limits on uImage size, and the two new kernels I tried are over 2MB.

So I would like to try the 2017.07 version offered by bodhi but there is no image for my dns-325.

What would it take to compile/get one ?

Thanks by advance.
Re: 2017.07 kirkwood uboot for dlink dns-325 ?
May 27, 2021 08:23PM
octalis,

This one has gone back to 2015. I forgot all about it because nobody has requested this u-boot!

https://forum.doozan.com/read.php?2,23181,24994#msg-24994


> I am using u-boot 2014.01 ; and I read that old
> versions of u-boot may have limits on uImage size,
> and the two new kernels I tried are over 2MB.

Are you booting with davygravy 2014 version? or version from mainline?

Please post a complete serial console log (so I can see u-boot banner).

It might be the size limitation. But I need to look at the source to see if it is true.

I can build the mainline version for you easily. But I would prefer to patch it so that it conforms to my structure of envs and envs location for other Kirkwood boxes (so I can release it in the future).

Can you run UART booting (kwboot) with this box? make sure you've tried this before updating u-boot in NAND.

-bodhi
===========================
Forum Wiki
bodhi's corner
Re: 2017.07 kirkwood uboot for dlink dns-325 ?
May 28, 2021 02:49AM
Thanks for your reply :)



Quote
bodhi
Are you booting with davygravy 2014 version? or version from mainline?

Comparing the build time between the thread you pointed and the one displayed on my u-boot, it seems to be davygravy 2014 version I am currently using.

my u-boot log is bellow :


U-Boot 2014.01 (Jan 21 2014 - 18:35:47)
D-Link DNS-325

SoC:   Kirkwood 88F6281_A1
DRAM:  256 MiB
WARNING: Caches not enabled
NAND:  128 MiB
In:    serial
Out:   serial
Err:   serial
Net:   egiga0
Hit any key to stop autoboot:  0


Quote
bodhi
Can you run UART booting (kwboot) with this box? make sure you've tried this before updating u-boot in NAND.

Yes.

Other question regarding u-boot flashing, I do have bad blocks in my NAND (using ubifs) :

Quote
bodhi
root@merou:~# dmesg | grep -i 'bad'
[ 35.414410] Scanning device for bad blocks
[ 35.491409] Bad eraseblock 756 at 0x000005e80000
[ 35.496111] Bad eraseblock 757 at 0x000005ea0000
[ 35.500814] Bad eraseblock 758 at 0x000005ec0000
[ 35.505512] Bad eraseblock 759 at 0x000005ee0000
[ 41.260325] ubi0 warning: ubi_eba_init [ubi]: cannot reserve enough PEBs for bad PEB handling, reserved 10, need 16
[ 41.314532] ubi0: good PEBs: 1012, bad PEBs: 4, corrupted PEBs: 0
[ 41.336432] ubi0: available PEBs: 0, total reserved PEBs: 1012, PEBs reserved for bad PEB handling: 10

Is it risky to flash u-boot ?
Re: 2017.07 kirkwood uboot for dlink dns-325 ?
May 28, 2021 03:26AM
octalis,

Quote

root@merou:~# dmesg | grep -i 'bad'
[ 35.414410] Scanning device for bad blocks
[ 35.491409] Bad eraseblock 756 at 0x000005e80000
[ 35.496111] Bad eraseblock 757 at 0x000005ea0000
[ 35.500814] Bad eraseblock 758 at 0x000005ec0000
[ 35.505512] Bad eraseblock 759 at 0x000005ee0000
[ 41.260325] ubi0 warning: ubi_eba_init [ubi]: cannot reserve enough PEBs for bad PEB handling, reserved 10, need 16
[ 41.314532] ubi0: good PEBs: 1012, bad PEBs: 4, corrupted PEBs: 0
[ 41.336432] ubi0: available PEBs: 0, total reserved PEBs: 1012, PEBs reserved for bad PEB handling: 10

The bad blocks are way out in NAND, so it is safe to flash u-boot (block 0 to 7).

-bodhi
===========================
Forum Wiki
bodhi's corner
Re: 2017.07 kirkwood uboot for dlink dns-325 ?
June 05, 2021 04:35PM
octalis,

Attached to this post is u-boot 2021.04 for the DNS-325. This is untested, do not flash to NAND.

Please try kwboot to see if you can boot with it.

-bodhi
===========================
Forum Wiki
bodhi's corner
Attachments:
open | download - uboot.2021.04-tld-1.dns325.mtd0.kwb (640 KB)
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