Re: Install barebox on target

[Thomas Mayer <thomas.mayer@telemotive.de>]

Hi,
good know, I will try that.

regards
Thomas


Am 28.02.2011 09:19, schrieb Baruch Siach:
> Hi Sascha, Thomas,
>
> On Mon, Feb 28, 2011 at 10:09:23AM +0200, Baruch Siach wrote:
>   
>> On Mon, Feb 28, 2011 at 08:40:53AM +0100, Sascha Hauer wrote:
>>     
>>> On Fri, Feb 25, 2011 at 05:08:10PM +0100, Thomas Mayer wrote:
>>>       
>>>> thanks, I will try that.
>>>> Today I got our real hardware. It consists of the freescale cpu board, a
>>>> custom baseboard with a different display.
>>>> With that I was able to start barebox completely. Network works fine,
>>>> but I can't access the nand memory, because barebox doesn't find it at
>>>> startup. I added all possible nand drivers to barebox, but it still
>>>> doesn't work.
>>>>
>>>> Any idea?
>>>>
>>>> --------------------------------------- u-boot output
>>>> -----------------------------------------
>>>> U-Boot 2009.08 (Jan 13 2010 -
>>>>
>>>> Page Geometry     :
>>>> 4096+218
>>>>         
>>> This will cause problems. I never had a nand with 4k block size and I
>>> doubt it will work out of the box. I don't know if that's the reason
>>> barebox does not find no nand device at all though.
>>>       
>> I'm also seeing problems with a 4k page size (+218 OOB) SLC NAND flash of 
>> Micron on i.MX25. Barebox does identify the flash chip, but can't read it 
>> correctly.  I'm investigating the issue. So far I've found that the OOB area 
>> is read as 0x00s instead of 0xffs, even for good blocks. This makes Barebox to 
>> mark the whole flash as bad blocks.
>>
>> The Linux kernel, however, seems to work correctly with this flash when 
>> applying a small fix to use the correct(?) nand_ecclayout.
>>     
> I should also add the booting from this NAND with Barebox works perfectly. I 
> used the kernel to program Barebox into the flash.
>
> baruch
>
>   
>>>> --------------------------------------- barebox output
>>>> ------------------------------------------
>>>> barebox 2011.02.0 (Feb 25 2011 - 16:35:47)
>>>>
>>>> Board: Freescale MX35 3Stack
>>>> No NAND device found!!!
>>>> cfi_probe: cfi_flash base: 0xa0000000 size: 0x04000000
>>>> mc13892-i2c@mc13892-i2c0: PMIC ID: 0x000045d0 [Rev: 2.0a]
>>>> smc911x: no smc911x found on 0xb6000000 (byte_test=0x00f000f0)
>>>> imx-ipu-fb@imx-ipu-fb0: i.MX Framebuffer driver
>>>> mc13892-i2c@mc13892-i2c0: revision: 0x45d0
>>>> i.MX35 PDK CPU board version 1.
>>>> Malloc space: 0x86f00000 -> 0x87f00000 (size 16 MB)
>>>> Stack space : 0x86ef8000 -> 0x86f00000 (size 32 kB)
>>>> Open /dev/env0 No such file or directory
>>>> no valid environment found on /dev/env0. Using default environment
>>>> running /env/bin/init...
>>>>
>>>>
>>>>
>>>> regards
>>>> Thomas
>>>>
>>>>
>>>>
>>>> Am 25.02.2011 16:06, schrieb Sascha Hauer:
>>>>         
>>>>> On Fri, Feb 25, 2011 at 10:15:01AM +0100, Thomas Mayer wrote:
>>>>>   
>>>>>           
>>>>>> Hi Sascha,
>>>>>>
>>>>>> That's not quite correct. When you use the debug + personality board you
>>>>>> can boot directly from a mmc-card which contains bootloader, kernel and
>>>>>> rootfs without modifications. Only if you use the single personality
>>>>>> board, you have to modify die board a little bit.
>>>>>>     
>>>>>>             
>>>>> Ah, ok. I didn't know that.
>>>>>
>>>>>   
>>>>>           
>>>>>> Thanks for your short introduction. I tried to run the barebox image
>>>>>> with u-boot and it seems to work. But after I get the following output
>>>>>> barebox stops and do nothing.
>>>>>>     
>>>>>>             
>>>>> That's a bug in the support for multiple network devices. Please pull
>>>>> the -next branch again, then it should work.
>>>>>
>>>>> Sascha
>>>>>           
>   


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