[PATCH v3 09/12] ARM: EXYNOS: add support get_core_count() for EXYNOS5250

Kukjin Kim kgene.kim at samsung.com
Wed Mar 14 02:49:37 EDT 2012


On 03/13/12 09:15, Arnd Bergmann wrote:
> On Tuesday 13 March 2012, Kukjin Kim wrote:
>> The EXYNOS5250 has two Cortex-A15 cores and there's no
>> need to call scu_enable() in platform_smp_prepare_cpus().
>>
>> Signed-off-by: Kukjin Kim<kgene.kim at samsung.com>
>
> Can you explain this patch more? It only seems to make the
> code less generic, but there is no indication if calling
> the scu_get_core_count() function is actually wrong on
> exynos5.
>
Contrary to Cortex-A9, Cortex-A15 has no regarding scu register so 
EXYNO5250 can not get the number of core from that like EXYNOS4 SoCs.

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim at samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.



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