On Tue, Apr 21, 2015 at 12:31 PM, Mark Rutland <mark.rutland@xxxxxxx> wrote:
>> +static void __init imx_ca7_smp_init_cpus(void)
>> +{
>> + int i, ncores;
>> + unsigned long val;
>> +
>> + asm volatile("mrc p15, 1, %0, c9, c0, 2" : "=r" (val));
>> + ncores = ((val >> 24) & 0x3) + 1;
>> + if (setup_max_cpus < ncores)
>> + ncores = (setup_max_cpus) ? setup_max_cpus : 1;
>> +
>> + for (i = ncores; i < NR_CPUS; i++)
>> + set_cpu_possible(i, false);
>> +}
>
> NAK.
>
> The set of available CPUs should come from the DT, as with other
> platforms.
Can you give me a reference platform implement?
>
> Mark.
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