Booting Yocto on i.MX35

Booting Yocto on i.MX35

[Gary Thomas]

I have an i.MX35 PDK that I'd like to run Yocto on.  I've built
an SD card image using TARGET=imx35pdk.  All went well (past the
small problem of the initial clone of the linux-mainline git
tree - timed out and I downloaded it by hand).  However, when
I set the jumpers to boot from SD card, I get continuous errors:
   ++NAND: RCSR=b000900
   Searching for BBT table in the flash ...
   .
   Found version 1 Bbt0 at block 8191 (0x7ffc0000)
   Total bad blocks: 0
   ... Read from 0x07ec0000-0x07f00000 at 0x00080000: ..
   ... Read from 0x07eb3000-0x07eb4000 at 0x000bf000: .
   PMIC ID: 0x00000010 [Rev: 1.0]
   Board version V2.0
   Launching POST
   Fail, CMD13
   Fail, CMD13

I'll try another SD card when I can get access to one (I'm away
from my office now), but thought I would ask if I've missed something?
Can someone tell me _definitively_ how to set the jumpers for this mode
since the quick start guide and hardware guide don't match??

Thanks for any pointers.

n.b. I'm also interested if anyone out there has had success with
this setup :-)

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Booting Yocto on i.MX35

[Daiane Angolini]

On 06/13/2013 04:10 PM, Gary Thomas wrote:
> I have an i.MX35 PDK that I'd like to run Yocto on.  I've built
> an SD card image using TARGET=imx35pdk.  All went well (past the
> small problem of the initial clone of the linux-mainline git
> tree - timed out and I downloaded it by hand).  However, when
> I set the jumpers to boot from SD card, I get continuous errors:
>    ++NAND: RCSR=b000900
>    Searching for BBT table in the flash ...
>    .
>    Found version 1 Bbt0 at block 8191 (0x7ffc0000)
>    Total bad blocks: 0
>    ... Read from 0x07ec0000-0x07f00000 at 0x00080000: ..
>    ... Read from 0x07eb3000-0x07eb4000 at 0x000bf000: .
>    PMIC ID: 0x00000010 [Rev: 1.0]
>    Board version V2.0
>    Launching POST
>    Fail, CMD13
>    Fail, CMD13
>
> I'll try another SD card when I can get access to one (I'm away
> from my office now), but thought I would ask if I've missed something?
> Can someone tell me _definitively_ how to set the jumpers for this mode
> since the quick start guide and hardware guide don't match??

I don't like to rely on my memory. But I remember imx35pdk had a 
"different" way to set up the switch for internal boot/nand boot/atk 
boot/whatever.

But, from your log, you're booting from NAND (no need to blame your sdcard)

Try this one:
https://community.freescale.com/docs/DOC-1307

>
> Thanks for any pointers.
>
> n.b. I'm also interested if anyone out there has had success with
> this setup :-)

-- 
Daiane

Re: Booting Yocto on i.MX35

[Gary Thomas]

On 2013-06-13 20:19, Daiane Angolini wrote:
> On 06/13/2013 04:10 PM, Gary Thomas wrote:
>> I have an i.MX35 PDK that I'd like to run Yocto on.  I've built
>> an SD card image using TARGET=imx35pdk.  All went well (past the
>> small problem of the initial clone of the linux-mainline git
>> tree - timed out and I downloaded it by hand).  However, when
>> I set the jumpers to boot from SD card, I get continuous errors:
>>    ++NAND: RCSR=b000900
>>    Searching for BBT table in the flash ...
>>    .
>>    Found version 1 Bbt0 at block 8191 (0x7ffc0000)
>>    Total bad blocks: 0
>>    ... Read from 0x07ec0000-0x07f00000 at 0x00080000: ..
>>    ... Read from 0x07eb3000-0x07eb4000 at 0x000bf000: .
>>    PMIC ID: 0x00000010 [Rev: 1.0]
>>    Board version V2.0
>>    Launching POST
>>    Fail, CMD13
>>    Fail, CMD13
>>
>> I'll try another SD card when I can get access to one (I'm away
>> from my office now), but thought I would ask if I've missed something?
>> Can someone tell me _definitively_ how to set the jumpers for this mode
>> since the quick start guide and hardware guide don't match??
>
> I don't like to rely on my memory. But I remember imx35pdk had a "different" way to set up the switch for internal boot/nand boot/atk boot/whatever.
>
> But, from your log, you're booting from NAND (no need to blame your sdcard)
>
> Try this one:
> https://community.freescale.com/docs/DOC-1307

Thanks, that's useful information.

Sadly, when I follow those instructions, the board just sits there with
no sign of life.

Any ideas what else I might try?

>
>>
>> Thanks for any pointers.
>>
>> n.b. I'm also interested if anyone out there has had success with
>> this setup :-)
>

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Booting Yocto on i.MX35

[Daiane Angolini]

On 06/14/2013 04:52 AM, Gary Thomas wrote:
> On 2013-06-13 20:19, Daiane Angolini wrote:
>> On 06/13/2013 04:10 PM, Gary Thomas wrote:
>>> I have an i.MX35 PDK that I'd like to run Yocto on.  I've built
>>> an SD card image using TARGET=imx35pdk.  All went well (past the
>>> small problem of the initial clone of the linux-mainline git
>>> tree - timed out and I downloaded it by hand).  However, when
>>> I set the jumpers to boot from SD card, I get continuous errors:
>>>    ++NAND: RCSR=b000900
>>>    Searching for BBT table in the flash ...
>>>    .
>>>    Found version 1 Bbt0 at block 8191 (0x7ffc0000)
>>>    Total bad blocks: 0
>>>    ... Read from 0x07ec0000-0x07f00000 at 0x00080000: ..
>>>    ... Read from 0x07eb3000-0x07eb4000 at 0x000bf000: .
>>>    PMIC ID: 0x00000010 [Rev: 1.0]
>>>    Board version V2.0
>>>    Launching POST
>>>    Fail, CMD13
>>>    Fail, CMD13
>>>
>>> I'll try another SD card when I can get access to one (I'm away
>>> from my office now), but thought I would ask if I've missed something?
>>> Can someone tell me _definitively_ how to set the jumpers for this mode
>>> since the quick start guide and hardware guide don't match??
>>
>> I don't like to rely on my memory. But I remember imx35pdk had a
>> "different" way to set up the switch for internal boot/nand boot/atk
>> boot/whatever.
>>
>> But, from your log, you're booting from NAND (no need to blame your
>> sdcard)
>>
>> Try this one:
>> https://community.freescale.com/docs/DOC-1307
>
> Thanks, that's useful information.
>
> Sadly, when I follow those instructions, the board just sits there with
> no sign of life.
>
> Any ideas what else I might try?

The main problem is that the setup depends on your board version AND 
your debug board version.

I'm going to dig into my old documents. In case I find something useful 
I let you know.


>
>>
>>>
>>> Thanks for any pointers.
>>>
>>> n.b. I'm also interested if anyone out there has had success with
>>> this setup :-)
>>
>


-- 
Daiane

Re: Booting Yocto on i.MX35

[Gary Thomas]

On 2013-06-14 13:23, Daiane Angolini wrote:
> On 06/14/2013 04:52 AM, Gary Thomas wrote:
>> On 2013-06-13 20:19, Daiane Angolini wrote:
>>> On 06/13/2013 04:10 PM, Gary Thomas wrote:
>>>> I have an i.MX35 PDK that I'd like to run Yocto on.  I've built
>>>> an SD card image using TARGET=imx35pdk.  All went well (past the
>>>> small problem of the initial clone of the linux-mainline git
>>>> tree - timed out and I downloaded it by hand).  However, when
>>>> I set the jumpers to boot from SD card, I get continuous errors:
>>>>    ++NAND: RCSR=b000900
>>>>    Searching for BBT table in the flash ...
>>>>    .
>>>>    Found version 1 Bbt0 at block 8191 (0x7ffc0000)
>>>>    Total bad blocks: 0
>>>>    ... Read from 0x07ec0000-0x07f00000 at 0x00080000: ..
>>>>    ... Read from 0x07eb3000-0x07eb4000 at 0x000bf000: .
>>>>    PMIC ID: 0x00000010 [Rev: 1.0]
>>>>    Board version V2.0
>>>>    Launching POST
>>>>    Fail, CMD13
>>>>    Fail, CMD13
>>>>
>>>> I'll try another SD card when I can get access to one (I'm away
>>>> from my office now), but thought I would ask if I've missed something?
>>>> Can someone tell me _definitively_ how to set the jumpers for this mode
>>>> since the quick start guide and hardware guide don't match??
>>>
>>> I don't like to rely on my memory. But I remember imx35pdk had a
>>> "different" way to set up the switch for internal boot/nand boot/atk
>>> boot/whatever.
>>>
>>> But, from your log, you're booting from NAND (no need to blame your
>>> sdcard)
>>>
>>> Try this one:
>>> https://community.freescale.com/docs/DOC-1307
>>
>> Thanks, that's useful information.
>>
>> Sadly, when I follow those instructions, the board just sits there with
>> no sign of life.
>>
>> Any ideas what else I might try?
>
> The main problem is that the setup depends on your board version AND your debug board version.

I got a bit farther along.  The U-Boot that gets built by the Yocto setup is
configured to run from NOR FLASH.  Once I got that programmed using the ATK tools,
I was able to get into U-Boot.

I then tried to boot Linux over the network, using my SD card as the file system.
Sadly, this only got as far as uncompressing the kernel.  I'll keep trying.

>
> I'm going to dig into my old documents. In case I find something useful I let you know.
>
>
>>
>>>
>>>>
>>>> Thanks for any pointers.
>>>>
>>>> n.b. I'm also interested if anyone out there has had success with
>>>> this setup :-)
>>>
>>
>
>

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Booting Yocto on i.MX35

[Gary Thomas]

On 2013-06-15 11:20, Gary Thomas wrote:
> On 2013-06-14 13:23, Daiane Angolini wrote:
>> On 06/14/2013 04:52 AM, Gary Thomas wrote:
>>> On 2013-06-13 20:19, Daiane Angolini wrote:
>>>> On 06/13/2013 04:10 PM, Gary Thomas wrote:
>>>>> I have an i.MX35 PDK that I'd like to run Yocto on.  I've built
>>>>> an SD card image using TARGET=imx35pdk.  All went well (past the
>>>>> small problem of the initial clone of the linux-mainline git
>>>>> tree - timed out and I downloaded it by hand).  However, when
>>>>> I set the jumpers to boot from SD card, I get continuous errors:
>>>>>    ++NAND: RCSR=b000900
>>>>>    Searching for BBT table in the flash ...
>>>>>    .
>>>>>    Found version 1 Bbt0 at block 8191 (0x7ffc0000)
>>>>>    Total bad blocks: 0
>>>>>    ... Read from 0x07ec0000-0x07f00000 at 0x00080000: ..
>>>>>    ... Read from 0x07eb3000-0x07eb4000 at 0x000bf000: .
>>>>>    PMIC ID: 0x00000010 [Rev: 1.0]
>>>>>    Board version V2.0
>>>>>    Launching POST
>>>>>    Fail, CMD13
>>>>>    Fail, CMD13
>>>>>
>>>>> I'll try another SD card when I can get access to one (I'm away
>>>>> from my office now), but thought I would ask if I've missed something?
>>>>> Can someone tell me _definitively_ how to set the jumpers for this mode
>>>>> since the quick start guide and hardware guide don't match??
>>>>
>>>> I don't like to rely on my memory. But I remember imx35pdk had a
>>>> "different" way to set up the switch for internal boot/nand boot/atk
>>>> boot/whatever.
>>>>
>>>> But, from your log, you're booting from NAND (no need to blame your
>>>> sdcard)
>>>>
>>>> Try this one:
>>>> https://community.freescale.com/docs/DOC-1307
>>>
>>> Thanks, that's useful information.
>>>
>>> Sadly, when I follow those instructions, the board just sits there with
>>> no sign of life.
>>>
>>> Any ideas what else I might try?
>>
>> The main problem is that the setup depends on your board version AND your debug board version.
>
> I got a bit farther along.  The U-Boot that gets built by the Yocto setup is
> configured to run from NOR FLASH.  Once I got that programmed using the ATK tools,
> I was able to get into U-Boot.
>
> I then tried to boot Linux over the network, using my SD card as the file system.
> Sadly, this only got as far as uncompressing the kernel.  I'll keep trying.

Looking at the kernel that was built, it's no surprise that it doesn't boot!  There is
no i.MX35 PDK support in there at all, unless I've missed it.

Too bad this didn't work "off the shelf".  Maybe that target should be marked incomplete
somehow so the next guy isn't bitten as badly as I have been.

>
>>
>> I'm going to dig into my old documents. In case I find something useful I let you know.
>>
>>
>>>
>>>>
>>>>>
>>>>> Thanks for any pointers.
>>>>>
>>>>> n.b. I'm also interested if anyone out there has had success with
>>>>> this setup :-)
>>>>
>>>
>>
>>
>

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Booting Yocto on i.MX35

[Otavio Salvador]

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On Sat, Jun 15, 2013 at 7:38 AM, Gary Thomas <gary@mlbassoc.com> wrote:

> On 2013-06-15 11:20, Gary Thomas wrote:
>
>> On 2013-06-14 13:23, Daiane Angolini wrote:
>>
>>> On 06/14/2013 04:52 AM, Gary Thomas wrote:
>>>
>>>> On 2013-06-13 20:19, Daiane Angolini wrote:
>>>>
>>>>> On 06/13/2013 04:10 PM, Gary Thomas wrote:
>>>>>
>>>>>> I have an i.MX35 PDK that I'd like to run Yocto on.  I've built
>>>>>> an SD card image using TARGET=imx35pdk.  All went well (past the
>>>>>> small problem of the initial clone of the linux-mainline git
>>>>>> tree - timed out and I downloaded it by hand).  However, when
>>>>>> I set the jumpers to boot from SD card, I get continuous errors:
>>>>>>    ++NAND: RCSR=b000900
>>>>>>    Searching for BBT table in the flash ...
>>>>>>    .
>>>>>>    Found version 1 Bbt0 at block 8191 (0x7ffc0000)
>>>>>>    Total bad blocks: 0
>>>>>>    ... Read from 0x07ec0000-0x07f00000 at 0x00080000: ..
>>>>>>    ... Read from 0x07eb3000-0x07eb4000 at 0x000bf000: .
>>>>>>    PMIC ID: 0x00000010 [Rev: 1.0]
>>>>>>    Board version V2.0
>>>>>>    Launching POST
>>>>>>    Fail, CMD13
>>>>>>    Fail, CMD13
>>>>>>
>>>>>> I'll try another SD card when I can get access to one (I'm away
>>>>>> from my office now), but thought I would ask if I've missed something?
>>>>>> Can someone tell me _definitively_ how to set the jumpers for this
>>>>>> mode
>>>>>> since the quick start guide and hardware guide don't match??
>>>>>>
>>>>>
>>>>> I don't like to rely on my memory. But I remember imx35pdk had a
>>>>> "different" way to set up the switch for internal boot/nand boot/atk
>>>>> boot/whatever.
>>>>>
>>>>> But, from your log, you're booting from NAND (no need to blame your
>>>>> sdcard)
>>>>>
>>>>> Try this one:
>>>>> https://community.freescale.**com/docs/DOC-1307<https://community.freescale.com/docs/DOC-1307>
>>>>>
>>>>
>>>> Thanks, that's useful information.
>>>>
>>>> Sadly, when I follow those instructions, the board just sits there with
>>>> no sign of life.
>>>>
>>>> Any ideas what else I might try?
>>>>
>>>
>>> The main problem is that the setup depends on your board version AND
>>> your debug board version.
>>>
>>
>> I got a bit farther along.  The U-Boot that gets built by the Yocto setup
>> is
>> configured to run from NOR FLASH.  Once I got that programmed using the
>> ATK tools,
>> I was able to get into U-Boot.
>>
>> I then tried to boot Linux over the network, using my SD card as the file
>> system.
>> Sadly, this only got as far as uncompressing the kernel.  I'll keep
>> trying.
>>
>
> Looking at the kernel that was built, it's no surprise that it doesn't
> boot!  There is
> no i.MX35 PDK support in there at all, unless I've missed it.
>
> Too bad this didn't work "off the shelf".  Maybe that target should be
> marked incomplete
> somehow so the next guy isn't bitten as badly as I have been.


Agreed; or we can work together and fix it ;-)

Maybe you could prepare a patch for fix it?

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://projetos.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

[-- Attachment #2: Type: text/html, Size: 4336 bytes --]

Re: Booting Yocto on i.MX35

[Fabio Estevam]

On Sat, Jun 15, 2013 at 7:38 AM, Gary Thomas <gary@mlbassoc.com> wrote:

> Looking at the kernel that was built, it's no surprise that it doesn't boot!
> There is
> no i.MX35 PDK support in there at all, unless I've missed it.

Which kernel did you build?

Looking at recipes-kernel/linux/linux-fslc/defconfig

We have CONFIG_MACH_MX35_3DS=y selected.

>
> Too bad this didn't work "off the shelf".  Maybe that target should be
> marked incomplete
> somehow so the next guy isn't bitten as badly as I have been.

We need to add support for mx35pdk to boot from SD card in U-boot, so
that we can build a .sdcard image in meta-fsl-arm.

Re: Booting Yocto on i.MX35

[Gary Thomas]

On 2013-06-15 19:50, Fabio Estevam wrote:
> On Sat, Jun 15, 2013 at 7:38 AM, Gary Thomas <gary@mlbassoc.com> wrote:
>
>> Looking at the kernel that was built, it's no surprise that it doesn't boot!
>> There is
>> no i.MX35 PDK support in there at all, unless I've missed it.
>
> Which kernel did you build?
>
> Looking at recipes-kernel/linux/linux-fslc/defconfig
>
> We have CONFIG_MACH_MX35_3DS=y selected.

How did you select this?  The only options I can see for building Freescale IMX
systems use device tree which is not there for i.MX35

>
>>
>> Too bad this didn't work "off the shelf".  Maybe that target should be
>> marked incomplete
>> somehow so the next guy isn't bitten as badly as I have been.
>
> We need to add support for mx35pdk to boot from SD card in U-boot, so
> that we can build a .sdcard image in meta-fsl-arm.
>

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Booting Yocto on i.MX35

[Fabio Estevam]

On Mon, Jun 17, 2013 at 5:05 AM, Gary Thomas <gary@mlbassoc.com> wrote:

> How did you select this?  The only options I can see for building Freescale
> IMX
> systems use device tree which is not there for i.MX35

It is selected by default.

When I build a kernel manually for mx35 I do:

make imx_v6_v7_defconfig
make -j4 uImage LOADADDR=0x80008000

imx_v6_v7_defconfig supports both dt and non-dt imx platorms.

Re: Booting Yocto on i.MX35

[Gary Thomas]

On 2013-06-17 12:04, Fabio Estevam wrote:
> On Mon, Jun 17, 2013 at 5:05 AM, Gary Thomas <gary@mlbassoc.com> wrote:
>
>> How did you select this?  The only options I can see for building Freescale
>> IMX
>> systems use device tree which is not there for i.MX35
>
> It is selected by default.
>
> When I build a kernel manually for mx35 I do:
>
> make imx_v6_v7_defconfig
> make -j4 uImage LOADADDR=0x80008000
>
> imx_v6_v7_defconfig supports both dt and non-dt imx platorms.
>

I'll try that manually.

How do I configure my Yocto build to use this setup automatically?

Thanks

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Booting Yocto on i.MX35

[Otavio Salvador]

On Mon, Jun 17, 2013 at 9:36 AM, Gary Thomas <gary@mlbassoc.com> wrote:
> On 2013-06-17 12:04, Fabio Estevam wrote:
>>
>> On Mon, Jun 17, 2013 at 5:05 AM, Gary Thomas <gary@mlbassoc.com> wrote:
>>
>>> How did you select this?  The only options I can see for building
>>> Freescale
>>> IMX
>>> systems use device tree which is not there for i.MX35
>>
>>
>> It is selected by default.
>>
>> When I build a kernel manually for mx35 I do:
>>
>> make imx_v6_v7_defconfig
>> make -j4 uImage LOADADDR=0x80008000
>>
>> imx_v6_v7_defconfig supports both dt and non-dt imx platorms.
>>
>
> I'll try that manually.
>
> How do I configure my Yocto build to use this setup automatically?

I'd test it generating it byhand first and then update the defconfig
accordingly.

--
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://projetos.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Booting Yocto on i.MX35

[Gary Thomas]

On 2013-06-17 13:36, Gary Thomas wrote:
> On 2013-06-17 12:04, Fabio Estevam wrote:
>> On Mon, Jun 17, 2013 at 5:05 AM, Gary Thomas <gary@mlbassoc.com> wrote:
>>
>>> How did you select this?  The only options I can see for building Freescale
>>> IMX
>>> systems use device tree which is not there for i.MX35
>>
>> It is selected by default.
>>
>> When I build a kernel manually for mx35 I do:
>>
>> make imx_v6_v7_defconfig
>> make -j4 uImage LOADADDR=0x80008000
>>
>> imx_v6_v7_defconfig supports both dt and non-dt imx platorms.
>>
>
> I'll try that manually.

Manual build using this configuration file does work.  However, there
are a lot of bits missing, e.g. frame buffer and camera.  How do I enable
(use?) them on the PDK?

>
> How do I configure my Yocto build to use this setup automatically?

I'll send some patches shortly to set this up properly.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Booting Yocto on i.MX35

[Fabio Estevam]

On Mon, Jun 17, 2013 at 12:53 PM, Gary Thomas <gary@mlbassoc.com> wrote:

> Manual build using this configuration file does work.  However, there
> are a lot of bits missing, e.g. frame buffer and camera.  How do I enable
> (use?) them on the PDK?

I don't have a mx35pdk board handy, but looking at the defconfig both
framebuffer and camera support are selected.

Re: Booting Yocto on i.MX35

[Gary Thomas]

On 2013-06-17 22:59, Fabio Estevam wrote:
> On Mon, Jun 17, 2013 at 12:53 PM, Gary Thomas <gary@mlbassoc.com> wrote:
>
>> Manual build using this configuration file does work.  However, there
>> are a lot of bits missing, e.g. frame buffer and camera.  How do I enable
>> (use?) them on the PDK?
>
> I don't have a mx35pdk board handy, but looking at the defconfig both
> framebuffer and camera support are selected.
>

Indeed, but neither one works - there is no /dev/fb* nor /dev/video*

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Booting Yocto on i.MX35

[Fabio Estevam]

Hi Gary,

On Tue, Jun 18, 2013 at 4:02 AM, Gary Thomas <gary@mlbassoc.com> wrote:

>> I don't have a mx35pdk board handy, but looking at the defconfig both
>> framebuffer and camera support are selected.
>>
>
> Indeed, but neither one works - there is no /dev/fb* nor /dev/video*

I will boot my mx35pdk when I have a chance, but the linux-arm-kernel
mailing list would be a better place to report kernel related issues.

Regards,

Fabio Estevam

Re: Booting Yocto on i.MX35

[Fabio Estevam]

Hi Gary,

On Tue, Jun 18, 2013 at 8:34 AM, Fabio Estevam <festevam@gmail.com> wrote:
> Hi Gary,
>
> On Tue, Jun 18, 2013 at 4:02 AM, Gary Thomas <gary@mlbassoc.com> wrote:
>
>>> I don't have a mx35pdk board handy, but looking at the defconfig both
>>> framebuffer and camera support are selected.
>>>
>>
>> Indeed, but neither one works - there is no /dev/fb* nor /dev/video*
>
> I will boot my mx35pdk when I have a chance, but the linux-arm-kernel
> mailing list would be a better place to report kernel related issues.

I managed to get framebuffer to work on a mx35pdk running 3.10 kernel.

In order to do so, you need to pass 'coherent_pool=2M ' into the
kernel command line.

Regards,

Fabio Estevam