Question regarding U-boot MultiCore SMP
conor at kernel.org
Fri Mar 3 09:21:11 CET 2023
On 2 March 2023 10:04:06 GMT, Jan Reinhard <rej at sysgo.com> wrote:
>I am working on the PolarFire RISC-V icicle kit and use u-boot to start my application.
>I configured the firmware to start u-boot on all harts (cores) and found out that u-boot uses a "HART lottery system" to decide which core/hart it runs on.
>In my special case I want u-boot to start on the first hart and the other harts shall wait for the interrupt.
>I cannot use the "saveenv" but I compile the u-boot myself. Is there a way to compile the u-boot to ignore the "HART lottery system" and use the first hart?
I'm unfortunately not that familiar with the early code in u-boot for riscv,
I'm just curious as to whether you could share more about why you
would like to boot on one hart only?
>Thank you in advance.
More information about the U-Boot