[U-Boot] [RFC] odroid DTB support

Guillaume Gardet guillaume.gardet at free.fr
Tue Oct 13 09:37:04 CEST 2015



Le 12/10/2015 16:24, Tom Rini a écrit :
> On Mon, Oct 12, 2015 at 10:54:04AM +0200, Guillaume Gardet wrote:
>> Hi,
>>
>>
>> Le 12/10/2015 01:45, Tom Rini a écrit :
>>> On Fri, Oct 09, 2015 at 02:35:24PM +0200, Guillaume Gardet wrote:
>>>> Le 09/10/2015 14:23, Przemyslaw Marczak a écrit :
>>>>> Hello Guillaume,
>>>>>
>>>>> On 10/09/2015 02:11 PM, Guillaume Gardet wrote:
>>>>>> Hi Przemyslaw,
>>>>>>
>>>>>> I would like to add DTB support for odroid board to be able to boot
>>>>>> upstream kernel easily.
>>>>>>
>>>>>> I see 2 ways to do it:
>>>>>> * Add CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG support to set 'board_rev'
>>>>>> and 'board_name' env vars. Then, you need a 'findfdt' script to check
>>>>>> 'board_rev' and set fdtfile accordingly (as done for OMAP4 panda board)
>>>>>> * Set fdtfile name directly (as done for rpi or igep00x0).
>>>>>>
>>>>>> What would you prefer?
>>>>>>
>>>>>>
>>>>>> Guillaume
>>>>>>
>>>>>>
>>>>> Is, that the reason of adding the boot script by your last patches?
>>>> No, we need a boot script, because this is the way we boot our
>>>> openSUSE images (we boot with an initrd and some special bootargs).
>>> Hang on, exynos stuff uses the generic distro hooks.  Can you take a
>>> look at doc/README.distro and see what openSUSE can hook into / provide
>>> some feedback on what needs doing?  Thanks!
>> This is true for odroid XU3 (Exynos5 based) but Odroid U3/X2 (Exynos4
>> based) has no generic distro hooks at the moment.
> No, exynos-common pulls in generic distro.  And in the event of boards
> that do not the answer is to pull in the generic distro framework.

It seems that exynos-common includes only "config_distro_defaults.h", not "config_distro_bootcmd.h".
And "config_distro_bootcmd.h" is needed for generic distro boot flow. Am I missing something?

Guillaume



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