* [Buildroot] Extracting DDR3 training code from bootable (Marvell Armada 370)
@ 2020-12-19 15:01 Trond Melen
2020-12-20 10:34 ` Chris Packham
0 siblings, 1 reply; 2+ messages in thread
From: Trond Melen @ 2020-12-19 15:01 UTC (permalink / raw)
To: buildroot
Dear All,
I'm trying to build U-Boot for Netgear ReadyNAS RN102
(https://wikidevi.wi-cat.ru/Netgear_ReadyNAS_RN102) which hosts a
Marvell Armada 370 SoC (88F6710). I believe what I need to do is
something like this:
dd if=backup.mtd0 of=u-boot-spl.bin bs=1 skip=X count=Y
Right? Is there sufficient information below to make a qualified guess
about the values X and Y?
Regards,
Trond Melen
DDR3 training code for this CPU is not included in the U-Boot source
tree, so, as expected, 'make' in '~/buildroot-2020.11' fails:
[...]
? MKIMAGE u-boot.kwb
Didn't find the file 'spl/u-boot-spl.bin' in
'/home/tme/buildroot-2020.11/output/build/uboot-2020.10' which is
mandatory to generate the image
This file generally contains the DDR3 training code, and should be
extracted from an existing bootable
image for your board. See 'kwbimage -x' to extract it from an existing
image.
[...]
Could not create image
make[2]: *** [Makefile:1440: u-boot.kwb] Error 1
make[2]: *** Deleting file 'u-boot.kwb'
make[2]: *** Waiting for unfinished jobs....
[...]
On the box I did:
================
tme at debian:~$ cat /proc/mtd
dev:??? size?? erasesize? name
mtd0: 00180000 00020000 "u-boot"
mtd1: 00020000 00020000 "u-boot-env"
mtd2: 00600000 00020000 "uImage"
mtd3: 00400000 00020000 "minirootfs"
mtd4: 07400000 00020000 "ubifs"
tme at debian:~$ sudo nanddump --noecc --omitoob -f backup.mtd0 /dev/mtd0
Block size 131072, page size 2048, OOB size 64
Dumping data starting at 0x00000000 and ending at 0x00180000...
tme at debian:~$ binwalk backup.mtd0
DECIMAL?????? HEXADECIMAL???? DESCRIPTION
--------------------------------------------------------------------------------
600340??????? 0x92914???????? device tree image (dtb)
608589??????? 0x9494D???????? Certificate in DER format (x509 v3),
header length: 4, sequence length: 1284
608705??????? 0x949C1???????? Certificate in DER format (x509 v3),
header length: 4, sequence length: 1288
662640??????? 0xA1C70???????? CRC32 polynomial table, little endian
667340??????? 0xA2ECC???????? CRC32 polynomial table, little endian
671327??????? 0xA3E5F???????? LZO compressed data
868352??????? 0xD4000???????? device tree image (dtb)
me at debian:~$ hexdump backup.mtd0 | head
0000000 008b 0000 5f18 000c 0101 4000 4000 0001
0000010 0000 0000 0000 0000 0200 0001 0000 e001
0000020 0102 3518 0002 0000 005b 0000 0000 0000
0000030 5fff e92d 001c fa00 0000 e3a0 9fff e8bd
0000040 1ffe e92d 0f36 ee07 1ffe e8bd ff1e e12f
0000050 1ffe e92d 0fba ee07 0f3e ee07 0f9a ee07
0000060 1ffe e8bd ff1e e12f 1ffe e92d f05f f57f
0000070 0f3e ee07 f04f f57f 1ffe e8bd ff1e e12f
0000080 1f10 ee11 1a02 e3c1 1000 e181 1f10 ee01
0000090 f04f f57f ff1e e12f 1000 e10f 1c01 e3c1
tme at debian:~$ hexdump backup.mtd0 | tail
00d75e0 6c6c 702c 6963 2d65 6f70 7472 6d00 7261
00d75f0 6576 6c6c 702c 6963 2d65 616c 656e 6400
00d7600 6665 7561 746c 732d 6174 6574 6c00 6e69
00d7610 7875 632c 646f 0065 0a0a 0a0a 0a0a 0a0a
00d7620 0a0a 0a0a 0a0a 0a0a 0a0a 0a0a 0a0a 0a0a
*
00d9f10 0a0a 0a0a 4783 d19c ffff ffff ffff ffff
00d9f20 ffff ffff ffff ffff ffff ffff ffff ffff
*
0180000
================
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Buildroot] Extracting DDR3 training code from bootable (Marvell Armada 370)
2020-12-19 15:01 [Buildroot] Extracting DDR3 training code from bootable (Marvell Armada 370) Trond Melen
@ 2020-12-20 10:34 ` Chris Packham
0 siblings, 0 replies; 2+ messages in thread
From: Chris Packham @ 2020-12-20 10:34 UTC (permalink / raw)
To: buildroot
On Sun, 20 Dec 2020, 4:01 AM Trond Melen, <trond.melen@holosynth.com> wrote:
> Dear All,
>
> I'm trying to build U-Boot for Netgear ReadyNAS RN102
> (https://wikidevi.wi-cat.ru/Netgear_ReadyNAS_RN102) which hosts a
> Marvell Armada 370 SoC (88F6710). I believe what I need to do is
> something like this:
>
> dd if=backup.mtd0 of=u-boot-spl.bin bs=1 skip=X count=Y
>
> Right? Is there sufficient information below to make a qualified guess
> about the values X and Y?
>
The image format is available in the Marvell datasheets if you can get
access to them. You could also figure it out from the kwbimage.h in the
u-boot source. Note there are different versions of the header and I'm not
sure what the armada-370 uses
https://gitlab.denx.de/u-boot/u-boot/-/blob/master/tools/kwbimage.h
> Regards,
> Trond Melen
>
>
> DDR3 training code for this CPU is not included in the U-Boot source
> tree, so, as expected, 'make' in '~/buildroot-2020.11' fails:
> [...]
> MKIMAGE u-boot.kwb
> Didn't find the file 'spl/u-boot-spl.bin' in
> '/home/tme/buildroot-2020.11/output/build/uboot-2020.10' which is
> mandatory to generate the image
> This file generally contains the DDR3 training code, and should be
> extracted from an existing bootable
> image for your board. See 'kwbimage -x' to extract it from an existing
> image.
>
This is relevant for you. Kwbimage is built with u-boot and can be used to
do what you were planning on doing with dd.
[...]
> Could not create image
> make[2]: *** [Makefile:1440: u-boot.kwb] Error 1
> make[2]: *** Deleting file 'u-boot.kwb'
> make[2]: *** Waiting for unfinished jobs....
> [...]
>
> On the box I did:
> ================
> tme at debian:~$ cat /proc/mtd
> dev: size erasesize name
> mtd0: 00180000 00020000 "u-boot"
> mtd1: 00020000 00020000 "u-boot-env"
> mtd2: 00600000 00020000 "uImage"
> mtd3: 00400000 00020000 "minirootfs"
> mtd4: 07400000 00020000 "ubifs"
>
> tme at debian:~$ sudo nanddump --noecc --omitoob -f backup.mtd0 /dev/mtd0
> Block size 131072, page size 2048, OOB size 64
> Dumping data starting at 0x00000000 and ending at 0x00180000...
>
> tme at debian:~$ binwalk backup.mtd0
> DECIMAL HEXADECIMAL DESCRIPTION
>
> --------------------------------------------------------------------------------
> 600340 0x92914 device tree image (dtb)
> 608589 0x9494D Certificate in DER format (x509 v3),
> header length: 4, sequence length: 1284
> 608705 0x949C1 Certificate in DER format (x509 v3),
> header length: 4, sequence length: 1288
> 662640 0xA1C70 CRC32 polynomial table, little endian
> 667340 0xA2ECC CRC32 polynomial table, little endian
> 671327 0xA3E5F LZO compressed data
> 868352 0xD4000 device tree image (dtb)
>
> me at debian:~$ hexdump backup.mtd0 | head
> 0000000 008b 0000 5f18 000c 0101 4000 4000 0001
> 0000010 0000 0000 0000 0000 0200 0001 0000 e001
> 0000020 0102 3518 0002 0000 005b 0000 0000 0000
> 0000030 5fff e92d 001c fa00 0000 e3a0 9fff e8bd
> 0000040 1ffe e92d 0f36 ee07 1ffe e8bd ff1e e12f
> 0000050 1ffe e92d 0fba ee07 0f3e ee07 0f9a ee07
> 0000060 1ffe e8bd ff1e e12f 1ffe e92d f05f f57f
> 0000070 0f3e ee07 f04f f57f 1ffe e8bd ff1e e12f
> 0000080 1f10 ee11 1a02 e3c1 1000 e181 1f10 ee01
> 0000090 f04f f57f ff1e e12f 1000 e10f 1c01 e3c1
>
> tme at debian:~$ hexdump backup.mtd0 | tail
> 00d75e0 6c6c 702c 6963 2d65 6f70 7472 6d00 7261
> 00d75f0 6576 6c6c 702c 6963 2d65 616c 656e 6400
> 00d7600 6665 7561 746c 732d 6174 6574 6c00 6e69
> 00d7610 7875 632c 646f 0065 0a0a 0a0a 0a0a 0a0a
> 00d7620 0a0a 0a0a 0a0a 0a0a 0a0a 0a0a 0a0a 0a0a
> *
> 00d9f10 0a0a 0a0a 4783 d19c ffff ffff ffff ffff
> 00d9f20 ffff ffff ffff ffff ffff ffff ffff ffff
> *
> 0180000
> ================
>
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.busybox.net/pipermail/buildroot/attachments/20201220/b5bbf6c2/attachment.html>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2020-12-20 10:34 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-12-19 15:01 [Buildroot] Extracting DDR3 training code from bootable (Marvell Armada 370) Trond Melen
2020-12-20 10:34 ` Chris Packham
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.