2012/6/22 Hauke Mehrtens <[email protected]>:
> On 06/22/2012 02:10 PM, Rafał Miłecki wrote:
>> 2012/6/22 Rafał Miłecki <[email protected]>:
>>> 2012/6/21 Rafał Miłecki <[email protected]>:
>>>> YOU'RE GREAT GUYS
>>>>
>>>> boot -tftp -elf 192.168.1.2" :/openwrt-brcm47xx-vmlinux.elf
>>>> Loader:elf Filesys:tftp Dev:eth0
>>>> File:192.168.1.2:/openwrt-brcm47xx-vmlinux.elf Options:(null)
>>>> Loading: 0x80001000/4400228 0x80433464/118060 Entry at 0x80247370
>>>> Closing network.
>>>> Starting program at 0x80247370
>>>> [ 0.000000] Linux version 3.3.8 ([email protected]) (gcc
>>>> version 4.6.3 20120201 (prerelease) (Linaro GCC 4.6-2012.02) ) #5 Thu
>>>> Jun 21 12:00:17 CEST 2012
>>>> [ 0.000000] bootconsole [early0] enabled
>>>> [ 0.000000] CPU revision is: 00019749 (MIPS 74Kc)
>>>> [ 0.000000] bcm47xx: using bcma bus
>>>> [ 0.000000] bcma: Found chip with id 0x5300, rev 0x01 and package 0x00
>>>> [ 0.000000] bcma: Failed to scan for common core: -29
>>>> [ 0.000000] Kernel panic - not syncing: Failed to initialize BCMA
>>>> bus (err -1)
>>>>
>>>> Now the rest sounds trivial to fix! :)
>>>>
>>>>
>>>> Why booting elf from tftp allowed to me finally see anything? Any
>>>> explanation to that maybe?
>>>
>>> OK, I've fixed booting to reach some sane state. I've been working
>>> using tftp and elf all the time. Finally my boot log (using tftp +
>>> elf) looks like you can see in attached log.
>>>
>>> So after reaching this stage I've switched from generating ramdisk to
>>> generating squashfs. Installed my openwrt-wndr4500-squashfs.chk and...
>>> again, nothing. I can't see anything after "Starting program at
>>> 0x80001000".
>>
>> Hauke: does serial console logging works for you on any BCMA board?
>>
>> In brcm47xx/setup.c I can see some serial related code in
>> bcm47xx_register_ssb. We don't have anything like that in
>> bcm47xx_register_bcma. Can this cause a problem for me?
>
> This code is used if the default serial port is on a different tty and
> it is used for some old devices or just one.
>
> I had never problems with serial console on my bcma based devices
> (bcm4716 and BCM5357). I think you stored the image on the wrong flash
> chip. From the boot log of the original firmware it looks like it has a
> 2MB serial flash and a 128MB NAND flash. One has the partition named
> linux and the other a partition named kernel with round about the same
> size. You could look into the source code provided by Netgear for your
> device and find out how the booting works with the original firmware and
> how the original firmware image is structured.
I've compared firmware files: original one and OpenWRT's one. Both are
chk files, both chk contain trx. However I can't understand what does
original firmware's trx contain.
OpenWRT's trx is understandable, it just contains gzipped loader.
Does looking at official.analyze.txt make any sense to you?
--
Rafał
WNDR4500-V1.0.0.58_1.0.13.chk
******************
*** chk_header ***
******************
| magic | header_len | reserved |
0000:0000 | 2A 23 24 5E |00 00 00 3A |01 01 00 00 3A 01 00 0D |
*#$^...:....:...
| kernel_chksum | rootfs_chksum | kernel_len | rootfs_len |
0000:0010 | 96 01 EC DB |00 00 00 00 |00 7B B0 00 |00 00 00 00 |
..ìÛ.....{°.....
| image_chksum | header_chksum | board_id |
0000:0020 | 96 01 EC DB |2F 26 0B F5 |55 31 32 48 31 38 39 54 |
..ìÛ/&.õU12H189T
| board_id |
0000:0030 | 30 30 5F 4E 45 54 47 45 41 52 | |
00_NETGEAR
******************
*** trx header ***
******************
| magic | leng- |
0000:0030 | 48 44 52 30 |00 B0 |
HDR0.°
| -th | CRC | flags | ver | offset0 | offs- |
0000:0040 | 7B 00 |68 67 C7 56 |00 00 |01 00 |1C 00 00 00 |78 1A |
{.hgÇV........x.
| -et1 | offset2 | what does begin here???
0000:0050 | 14 00 |00 00 00 00 |5D 00 00 01 00 86 C0 39 00 00 |
......].....À9..
0000:0060 | 00 00 00 00 00 25 D8 FB 85 9C B0 B1 53 C1 CF 25 |
.....%Øû..°±SÁÏ%
0000:0070 | 28 25 31 69 C7 52 7A FE 81 AE 1A 06 34 E1 83 A0 |
(%1iÇRzþ.®..4á.
0000:0080 | C6 4A 3A 8C AB 99 EC A8 8C 2A F0 6D 5E 70 2A D5 |
ÆJ:.«.ì¨.*ðm^p*Õ
0000:0090 | 83 41 DB 32 6D 16 88 51 D4 EF FB 27 69 28 96 90 |
.AÛ2m..QÔïû'i(..
0000:00A0 | 57 94 EA 8C 82 71 8B 0B 37 1C 77 5A 83 B4 F3 92 |
W.ê..q..7.wZ.´ó.
0000:00B0 | 8C 12 F4 76 ED C9 B5 9C 57 4B BB 1B 14 E5 F7 2F |
..ôvíɵ.WK»..å÷/
0000:00C0 | D5 38 2B B8 D4 C6 51 FD C4 03 1D AF 3A 26 1F 8B |
Õ8+¸ÔÆQýÄ..¯:&..
0000:00D0 | 36 9C 4C A3 56 95 28 BE 19 DA 55 23 2F 9A F3 53 |
6.L£V.(¾.ÚU#/.óS
Is the "1F 8B" at 0xCE:0xCF header of gzip? Doesn't seem to, as 0x36 can't be
gzip'sCM and 0x9C can't be gzip's FLG.
openwrt-wndr4500-squashfs.chk
******************
*** chk_header ***
******************
| magic | header_len | reserved |
0000:0000 | 2A 23 24 5E |00 00 00 3A |02 01 01 63 00 00 00 00 |
*#$^...:...c....
| kernel_chksum | rootfs_chksum | kernel_len | rootfs_len |
0000:0010 | F2 3B 39 59 |00 00 00 00 |00 2B 10 00 |00 00 00 00 |
ò;9Y.....+......
| image_chksum | header_chksum | board_id |
0000:0020 | F2 3B 39 59 |F1 C4 09 E4 |55 31 32 48 31 38 39 54 |
ò;9YñÄ.äU12H189T
| board_id |
0000:0030 | 30 30 5F 4E 45 54 47 45 41 52 | |
00_NETGEAR
******************
*** trx header ***
******************
| | magic | leng- |
0000:0030 | |48 44 52 30 |00 10 |
HDR0..
| -th | CRC | flags | ver | offset0 | offs- |
0000:0040 | 2B 00 |04 88 4A BE |00 00 |01 00 |1C 00 00 00 |60 09 |
+...J¾........`.
| -et1 | offset2 |
0000:0050 | 00 00 |00 98 0F 00 | |
................
******************
*** loader(gz) ***
******************
| |ID1|ID2|CM |FLG| MTIME |XFL|OS |
0000:0050 | |1F |8B |08 |00 |00 00 00 00 |02 |03 |
................
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