[PATCH] ARM: rockchip: smp: enable CPU1 for rk3066a

[Heiko Stübner]

Am Samstag, 29. August 2026, 01:40:57 Mitteleuropäische Sommerzeit schrieb Johan Jonker via B4 Relay:
> From: Hüseyin BIYIK <boogiepop at gmx.com>
> 
> RK3066a CPU1 fails to come online. Fix by using
> a similar mailbox construction as in use with
> other Rockchip SoCs.

"RK3066 CPU1 fails to come online with recent kernels....[rest]" or so
and also please use the line length up a resonable length like around 70
to 75 characters.

Also, is it known, why that happens - i.e. what changed?

> Signed-off-by: Hüseyin BIYIK <boogiepop at gmx.com>
> Signed-off-by: Johan Jonker <jbx6244 at gmail.com>
> ---
>  arch/arm/mach-rockchip/platsmp.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-rockchip/platsmp.c b/arch/arm/mach-rockchip/platsmp.c
> index f659d894bfae..d7d080c29f3c 100644
> --- a/arch/arm/mach-rockchip/platsmp.c
> +++ b/arch/arm/mach-rockchip/platsmp.c
> @@ -133,7 +133,8 @@ static int rockchip_boot_secondary(unsigned int cpu, struct task_struct *idle)
>  	if (ret < 0)
>  		return ret;
>  
> -	if (read_cpuid_part() != ARM_CPU_PART_CORTEX_A9) {
> +	if (read_cpuid_part() != ARM_CPU_PART_CORTEX_A9 ||
> +	    of_machine_is_compatible("rockchip,rk3066a")) {
>  		/*
>  		 * We communicate with the bootrom to active the cpus other
>  		 * than cpu0, after a blob of initialize code, they will

isn't now the only user of the old system the RK3188?

With both rk3066 and rk3188 from a similar time, I'd assume both could
be switch and thus the the now unused code removed?

I've never thought to look into that ... need to find my RK3188 board :-)


Heiko