Hi Peng
On Thu, 2019-05-02 at 03:57 +0000, Peng Fan wrote:
Hi Marcel,
Subject: Booting imx_4.14.98_2.0.0_ga on i.MX8QM MEK Board
Hi Peng, Stefano and Fabio
We are currently trying to boot the Linux kernel from NXP's downstream Linux BSP 4.14.98_2.0.0_ga with mainline U-Boot. However, that currently seems to crash as follows:
...
Does any of you know what exactly could be going on?
SMMU is not powered up, so smmu driver probe triggers abort when accessing SMMU registers. Need power up SC_R_SMMU.
I see, this is actually done in downstream U-Boot:
https://source.codeaurora.org/external/imx/uboot-imx/commit/?h=imx_v2018.03_...
Wondering how that is supposed to work with mainline U-Boot at the end.
BTW: The exact same crash is observed on Apalis iMX8 as well, while both the i.MX8QXP MEK as well as Colibri iMX8QXP boot that same downstream Linux kernel just fine. Must be something i.MX 8QuadMax specific...
There is no SMMU on i.MX8QXP.
Funny, at least in downstream U-Boot the same SMMU setup is done (;-p).
Regards, Peng.
Thanks, Peng!
Cheers
Marcel
Cheers
Marcel