[U-Boot] [PATCH 2/3] imx: mx6ul_evk: default enable device tree support

Peng Fan
2016-03-10T01:29:00Z

Hi Fabio,

On Wed, Mar 09, 2016 at 08:48:40AM -0300, Fabio Estevam wrote:
>Hi Peng,
>
>On Wed, Mar 9, 2016 at 3:01 AM, Peng Fan <van.freenix@gmail.com> wrote:
>> Default enable device tree for mx6ul_14x14_evk and
>> mx6ul_9x9_evk board. And sort the defconfig file to be in
>> alphabet order.
>>
>> Enable pinctrl driver for the two boards.
>>
>> Signed-off-by: Peng Fan <van.freenix@gmail.com>
>> Cc: Stefano Babic <sbabic@denx.de>
>> Cc: Fabio Estevam <fabio.estevam@nxp.com>
>
>Shouldn't board/freescale/mx6ul_14x14_evk/README be updated to take
>into account the new new method for flashing the image?

Will update u-boot.img to u-boot-dtb.img.

Wait for more comments on the patch set and will address this in V3.

Actually I am not very sure whether we need to introduce a full device tree
in U-Boot or not. It's too large a file, such as dtsi/clock header/pin header.

I just have an idea to introudce only needed part. Also I do not have
plan to implement a DM clk driver for i.MX, since it's not easy to
do clk management like linux kernel. If follow kernel, and add all the
gates/muxes, it's too complicated a driver, and not easy for us to
do bringup work. So I am thinking whether need to discard the clk
related property in device tree.

Thanks,
Peng.