[U-Boot] [PATCH 2/2] configs: dragonboard410c: Save environment data on eMMC

Jorge Ramirez jorge.ramirez-ortiz at linaro.org
Thu Nov 9 08:35:32 UTC 2017


On 11/09/2017 02:58 AM, Tom Rini wrote:
> On Wed, Nov 08, 2017 at 08:49:09AM +0100, Jorge Ramirez wrote:
>> On 11/07/2017 11:50 PM, Tom Rini wrote:
>>> On Mon, Nov 06, 2017 at 02:16:38PM +0100, Jorge Ramirez-Ortiz wrote:
>>>
>>>> Save the environment data at the end of the boot partition on emmc
>>>>
>>>> Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz at linaro.org>
>>>> ---
>>>>   arch/arm/dts/dragonboard410c-uboot.dtsi | 7 +++++++
>>>>   configs/dragonboard410c_defconfig       | 2 ++
>>>>   include/configs/dragonboard410c.h       | 1 +
>>>>   3 files changed, 10 insertions(+)
>>> Implementation this seems fine.  Is there a reason to do this vs
>>> ENV_IS_IN_FAT?  Or ENV_IS_IN_EXT ? And have it be in a filesystem
>>> instead?  That usually seems to be best for eval/dev/etc style boards.
>> I think having it on a partition offset (a partition that typically just
>> stores the uboot image) can be very convenient when having the filesystem on
>> an NFS share.
>>
>> It means that the user can completely ignore flashing and maintaining the
>> filesystem until he is ready. The only issue I see is that it is up to the
>> user - when he reprograms a new image or modifies the size of the
>> environemnt- to make sure the environment and whatever image is in the
>> partition dont overlap each other but I think that should be acceptable?
> Well, if you think environment in flash is best, that's fine.  I just
> want to make sure the alternatives are known as I keep surprising people
> when I note that the env can be a file in FAT or similar.  Thanks!

cool. yes please, I think - in my experience with poplar and now the 
db410 this is a useful configuration to have

>



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