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.
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@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