[PATCH v3 00/15] Add support for MediaTek MT7621 SoC

[Stefan Roese]

Hi Weijie

On 4/29/22 03:23, Weijie Gao wrote:
> Hi Marek,
> 
> Yes. MT7621 does need such a proprietary binary for DDR initialization
> and calibration. That's why I submit only the ram-bootable part here.
> 
> I'm considering to create a preloader to load and run DDR init&calib
> binary and ram-bootable u-boot image. The ram-bootable u-boot image can be appended to the proloader to form the flash-bootable bootloader.
> 
> The source code of preloader will be uploaded to github.

Just to be sure: You are not implementing this preloader as an U-Boot
SPL loader, as this would conflict with U-Boot's GPL compatibility?

Thanks,
Stefan

> Best Regards,
> Weijie
> 
> On Thu, 2022-04-28 at 18:19 +0200, Marek Behún wrote:
>> On Thu, 28 Apr 2022 18:37:09 +0800
>> Weijie Gao <weijie.gao at mediatek.com> wrote:
>>
>>> This series will add support for MediaTek MT7621 SoC with two
>>> reference boards
>>> and related drivers.
>>>
>>> The MediaTek MT7621 is a network processor integrating a dual-core
>>> dual-threaded MIPS 1004Kc processor running at a normal frequency
>>> of 880MHz.
>>> This chip can be found in many wireless routers.
>>
>> Hello Weijie,
>>
>> doesn't MT7621 U-Boot need a proprietary binary for DDR training?
>> I remember that it was required in 2016 for MqMaker WitiBoard.
>>
>> Marek

Viele Grüße,
Stefan Roese

-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-51 Fax: (+49)-8142-66989-80 Email: sr at denx.de