CA57CA53BOOT

Currently, two CA57s are running in StarterKitPro. Could you tell me how to boot with six cores total of two CA57s and four CA53s?

To try it here, CA57CA53BOOT = "1" was added to local.conf.

root@m3ulcb:~# cat /proc/cpuinfo
processor       : 0
BogoMIPS        : 16.66
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x1
CPU part        : 0xd07
CPU revision    : 3

processor       : 1
BogoMIPS        : 16.66
Features        : fp asimd evtstrm aes pmull sha1 sha2 crc32
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x1
CPU part        : 0xd07
CPU revision    : 3

ryuohno (talk)

Hi

This is quoted from the AGL mailing list.

[agl-discussions] A53 CPU on renesas board? 2017/05/10 (水) 18:01

> Out of curiosity, A53 cores on R-Car board (in additoin to A57 cores) could also be enabled for AGL system easily (for accelaration), or rather to be used to host different OSs?
>
Hello,
In order to enable the A53 CPU's on the r-car boards, you need to add this line in
meta-rcar/meta-rcar-gen3/recipes-bsp/arm-trusted-firmware/arm-trusted-firmware_git.bb:
export PSCI_DISABLE_BIGLITTLE_IN_CA57BOOT="0"
and rebuild and reflash the firmware as explained in http://elinux.org/R-Car/Boards/M3SK.

Is this useful for you?

Ygohda (talk)

ryuohno (talk)