Re: imx7d enable second core

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On Wed, Jul 18, 2018 at 12:28 AM Giorgio Dal Molin
<giorgio.nicole@xxxxxxxx> wrote:
>
> Hi all,
>
> I'm currently working with the imx7d sabre board from NXP.
>
> I have now a running barebox bootloader and a booting kernel.
>
> My problem is now that, apparently, only one core is active:
>
> ...
> commandline: console=ttymxc0,115200n8 ip=11.0.0.4::11.0.0.2:255.0.0.0::eth0: root=/dev/mmcblk0p2 rootdelay=1
> Starting kernel in secure mode

AFAIK, this means that you are booting in secure mode and secure
monitor code, which also implements PSCI needed for SMP to work, will
_not_ be installed by Barebox. One way to fix this would be to set:

 global.bootm.secure_state=nonsecure

before booting Linux. Doing that I get:

# lscpu -e
CPU SOCKET CORE ONLINE MAXMHZ   MINMHZ
0   0      0    yes    996.0000 792.0000
1   0      1    yes    996.0000 792.0000
#

on my SabreSD board.

Thanks,
Andrey Smirnov

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