[U-Boot] [PATCH 1/1] rockchip: provide installation instruction for Firefly-RK3399.

[Dr. Philipp Tomsich]

> On 9 Oct 2017, at 10:00, Mark Kettenis <mark.kettenis at xs4all.nl> wrote:
> 
>> From: Simon Glass <sjg at chromium.org>
>> Date: Sun, 8 Oct 2017 22:41:50 -0600
>> 
>> On 27 September 2017 at 21:35, Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
>>> Unfortunately installing U-Boot on an SD card for the Firefly-RK3399
>>> is not trivial.
>>> 
>>> I could not get U-Boot running with SPL.  So I ended up using the
>>> Rockchip miniloader.
>>> 
>>> Adding a README hopefully will give other users an easier start.
>>> 
>>> Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
>>> ---
>>> board/rockchip/firefly_rk3399/README | 55 ++++++++++++++++++++++++++++++++++++
>>> 1 file changed, 55 insertions(+)
>>> create mode 100644 board/rockchip/firefly_rk3399/README
>> 
>> Reviewed-by: Simon Glass <sjg at chromium.org>
> 
> Hmm,
> 
> Do we really want to push people in this direction, using propriatary,
> closed-source binaries?

I would rather see people discouraged from going down that road as
well… or to document this as a deprecated approach only.

> The "pure" U-Boot approach that is currently documented works just
> fine.  The only problem is that the firefly-rk3399 by default boots
> from eMMC.  And the first-stage bootloader only recognizes SD-cards
> with the propriatary loader.  So the trick is to wipe the firmware
> stored in eMMC or replace it with U-Boot.

Would you be willing to submit a patch with documentation for this?

Thanks,
Philipp.