On 07.11.2013, at 14:15, Guillaume Gardet <guillaume.gar...@free.fr> wrote:

> 
> Le 07/11/2013 14:04, Alexander Graf a écrit :
>> On 07.11.2013, at 14:00, Guillaume Gardet <guillaume.gar...@free.fr> wrote:
>> 
>>> Le 07/11/2013 13:34, Alexander Graf a écrit :
>>>> On 07.11.2013, at 13:19, Guillaume Gardet <guillaume.gar...@free.fr> wrote:
>>>> 
>>>>> Le 07/11/2013 11:17, Alexander Graf a écrit :
>>>>>> On 07.11.2013, at 11:14, Guillaume Gardet <guillaume.gar...@free.fr> 
>>>>>> wrote:
>>>>>> 
>>>>>>> Hi,
>>>>>>> 
>>>>>>> here are some tests results of 13.1 images. Results are pretty bad ATM. 
>>>>>>> :(
>>>>>>> 
>>>>>>> 
>>>>>>> * Beagleboard xM rev B :
>>>>>>> - Image fails to boot with the following error message:
>>>>>>> ********************************************************************************
>>>>>>> [    8.109588] Freeing unused kernel memory: 532K (c07e5000 - c086a000)
>>>>>>> setterm: cannot (un)set powersave mode: Inappropriate ioctl for device
>>>>>>> /usr/sbin/klogconsole
>>>>>>> Thu Nov  7 00:00:00 UTC 2013
>>>>>>> [   13.670684] ehci-omap ehci-omap.0: Can't get PHY device for port 1: 
>>>>>>> -6
>>>>>>> [   15.271728] hub 1-0:1.0: Cannot enable port 1.  Maybe the USB cable 
>>>>>>> is bad?
>>>>>>> [437097081.923981] Including oem partition info file
>>>>>>> [437097082.043030] Searching for boot device...
>>>>>>> [   16.471771] hub 1-0:1.0: Cannot enable port 1.  Maybe the USB cable 
>>>>>>> is bad?
>>>>>>> [   17.671752] hub 1-0:1.0: Cannot enable port 1.  Maybe the USB cable 
>>>>>>> is bad?
>>>>>>> [   18.925598] hub 1-0:1.0: Cannot enable port 1.  Maybe the USB cable 
>>>>>>> is bad?
>>>>>>> [   18.933227] hub 1-0:1.0: unable to enumerate USB device on port 1
>>>>>>> [437097110.607544] Failed to find boot device !
>>>>>>> [437097110.639527] rebootException: reboot in 120 sec...
>>>>>>> ********************************************************************************
>>>>>>> 
>>>>>>> The USB problem seems to be known: 
>>>>>>> http://www.spinics.net/lists/linux-omap/msg90670.html
>>>>>>> Is boot problem related? I do not know.
>>>>>>> 
>>>>>>> D6 and D7 lights (related to MMC) are turned OFF when kernel start 
>>>>>>> whereas it was ON with u-boot.
>>>>>>> So, MMC seems to be not working at all. It seems that kernel modules 
>>>>>>> (at least omap mmc modules) from initrd are not loaded. Very strange.
>>>>>> If you boot with kiwidebug=1 you should be able to get a shell and check 
>>>>>> whether the modules are loaded or not.
>>>>> Indeed, mmc modules are not loaded. But loading them manually does not 
>>>>> help to get mmc device to appear. I think we are missing other drivers 
>>>>> (maybe GPIO).
>>>> Could you quickly compare the defconfig for omap4 and the one we have to 
>>>> see what we're missing?
>>> I think it is missing from initrd only, not rootfs, since initrd has only 
>>> some of kernel modules. I will try to add some kernel modules to our initrd 
>>> and see if it helps.
>>> 
>>>>>>> * Pandaboard rev A3 :
>>>>>>> - Image hangs early with the following message: (Tested with 2 SD 
>>>>>>> cards).
>>>>>>> ********************************************************************************
>>>>>>> U-Boot SPL 2013.04 (Oct 21 2013 - 22:37:21)
>>>>>>> OMAP4430 ES2.2
>>>>>>> OMAP SD/MMC: 0
>>>>>>> ********************************************************************************
>>>>>>> 
>>>>>>> 
>>>>>>> Is there anyone who could test those images on their baords, especially 
>>>>>>> pandaboard?
>>>>>> Andrew reported the same issue. Could you please try with 12.3's SPL 
>>>>>> (MLO) and/or u-boot.bin to boil down which component is at fault here?
>>>>> I managed to get u-boot working using old MLO (and copying u-boot.bin 
>>>>> from boot/ folder to the root of the boot partition).
>>>> Does only replacing one of the two help already?
>>> Yes, replacing MLO only does help. I think our ext2 patch for MLO may be 
>>> broken for 13.1 u-boot. Maybe we could bump u-boot version at the same time 
>>> we check MLO patch?
>> Hrm. We're at rc2 here. Maybe it is a good idea to bump the version after 
>> all. Sigh.
> 
> Could you do it, please? I will not have time for that ATM. :(

I can try, but if I don't get around until Saturday it won't happen for at 
least another week.

> 
> 
>> 
>>>>> But now, I get the following error in u-boot:
>>>>> ********************************************************************************
>>>>> U-Boot SPL 2013.04-rc2 (Apr 17 2013 - 07:35:53)
>>>>> OMAP4430 ES2.2
>>>>> OMAP SD/MMC: 0
>>>>> 
>>>>> 
>>>>> U-Boot 2013.04 (Oct 21 2013 - 22:37:21)
>>>>> 
>>>>> CPU  : OMAP4430 ES2.2
>>>>> Board: OMAP4 Panda
>>>>> I2C:   ready
>>>>> DRAM:  1 GiB
>>>>> MMC:   OMAP SD/MMC: 0
>>>>> Using default environment
>>>>> 
>>>>> In:    serial
>>>>> Out:   serial
>>>>> Err:   serial
>>>>> Net:   No ethernet found.
>>>>> Hit any key to stop autoboot:  0
>>>>> mmc0 is current device
>>>>> SD/MMC found on device 0
>>>>> 1562 bytes read in 12 ms (127 KiB/s)
>>>>> Running bootscript from mmc0 ...
>>>>> ## Executing script at 82000000
>>>>> kerneladdr=0x80000000
>>>>> ramdiskaddr=0x82000000
>>>>> itest - return true/false on integer compare
>>>>> 
>>>>> Usage:
>>>>> itest [.b, .w, .l, .s] [*]value1 <op> [*]value2
>>>>> mmc0 is current device
>>>>> ** File not found boot/linux.vmx **
>>>>> 4417952 bytes read in 241 ms (17.5 MiB/s)
>>>>> ** File not found /boot/omap4-panda-es.dtb **
>>>>> Booting from mmc0 ...
>>>>> ERROR: Did not find a cmdline Flattened Device Tree
>>>>> Could not find a valid device tree
>>>>> ********************************************************************************
>>>>> the problem is that bootpart has a bad value.
>>>>> 'echo $bootpart' returns '0:2' instead of 0.
>>>>> This is the default value in u-boot for panda but should be overwritten 
>>>>> by our script. Why not?
>>> I found the problem. We must reset $bootpart otherwise value is not updated.
>> Or use a different variable name? ;)
> 
> bootpart is the right name I think, we just need to update it after loading 
> our script.

IIRC I set everything up in a way that you can always override any variable 
from nvram, if you have persistent nvram.

> 
>> 
>>>>> 'itest' error can easily be fixed by setting usefdt and loadfdt to 0 by 
>>>>> default. (I could submit a patch for this one later).
>>>> i thought we do an itest 0$var = 0 or so exactly to not run into this?
>>> Yes. But it seems there is still a problem with one of the itest.
>>> Defaulting to 0 is not a big deal.
>> ok :)
> 
> 
> I found the problem. U-boot already defines loadfdt:
> echo $loadfdt
> load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}
> 
> Do we want to change our var name our do we overwrite loadfdt?

We want to change the var name.

> I think overwriting a u-boot var is not a good idea. Moreover, why do we have 
> 2 vars: usefdt and loadfdt? if we want to use DT, we must load it. And we do 
> not need to load it if we do not use it. Isn't it?
> I would like to remove loadfdt and only use usefdt. Are you ok?

Not at all.

On highbank and midway we already get a working device tree preloaded by 
firmware. There we do not have to load an fdt, but only use it.

> 
>> 
>>> 
>>>>> Once all those little problems fixed manually, u-boot loads kernel and 
>>>>> initrd, but I get:
>>>>> ********************************************************************************
>>>>> Starting kernel ...
>>>>> 
>>>>> undefined instruction
>>>>> pc : [<8000012c>]          lr : [<00000090>]
>>>> Which instruction is that? Just run objdump -d on the vmlinux file and 
>>>> check for the instruction at 0x12c Maybe the one before.
>>> objdump -d linux.vmx
>>> objdump: linux.vmx: File format not recognized
>> You need to run objdump on the vmlinux file. linux.vmx is a uImage.
> 
> I have:
> c000812c <__turn_mmu_on_loc>:
> c000812c:    c000812c     .word    0xc000812c
> c0008130:    c05558f8     .word    0xc05558f8
> c0008134:    c0555918     .word    0xc0555918

Hrm. That is 0x812c. There is nothing earlier? In fact, looking at the lr 
address, we might be in self-extract code here...


Alex

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