* [PATCH] ARM: EXYNOS: call scu_enable() only in case of cortex-A9 processor
@ 2013-05-31 9:43 Leela Krishna Amudala
2013-05-31 15:14 ` Doug Anderson
0 siblings, 1 reply; 3+ messages in thread
From: Leela Krishna Amudala @ 2013-05-31 9:43 UTC (permalink / raw)
To: linux-samsung-soc; +Cc: kgene.kim, dianders
This patch reads the cpuid part number and if it matches with
cortex-A9, calls scu_enable()
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
---
arch/arm/mach-exynos/platsmp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index a0e8ff7..d9c6d0a 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -200,7 +200,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
{
int i;
- if (!(soc_is_exynos5250() || soc_is_exynos5440()))
+ if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9)
scu_enable(scu_base_addr());
/*
--
1.7.10.4
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] ARM: EXYNOS: call scu_enable() only in case of cortex-A9 processor
2013-05-31 9:43 [PATCH] ARM: EXYNOS: call scu_enable() only in case of cortex-A9 processor Leela Krishna Amudala
@ 2013-05-31 15:14 ` Doug Anderson
2013-06-05 12:45 ` Kukjin Kim
0 siblings, 1 reply; 3+ messages in thread
From: Doug Anderson @ 2013-05-31 15:14 UTC (permalink / raw)
To: Leela Krishna Amudala
Cc: linux-samsung-soc, Kukjin Kim, Tomasz Figa, Olof Johansson
Leela,
On Fri, May 31, 2013 at 2:43 AM, Leela Krishna Amudala
<l.krishna@samsung.com> wrote:
> This patch reads the cpuid part number and if it matches with
> cortex-A9, calls scu_enable()
>
> Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
> ---
> arch/arm/mach-exynos/platsmp.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
> index a0e8ff7..d9c6d0a 100644
> --- a/arch/arm/mach-exynos/platsmp.c
> +++ b/arch/arm/mach-exynos/platsmp.c
> @@ -200,7 +200,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
> {
> int i;
>
> - if (!(soc_is_exynos5250() || soc_is_exynos5440()))
> + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9)
> scu_enable(scu_base_addr());
>
> /*
Thanks for sending upstream. For reference, our local version is here
<https://gerrit.chromium.org/gerrit/#/c/56804/>.
This is much better than listing every single non-A9 exynos in a big
"if" test. ;)
Reviewed-by: Doug Anderson <dianders@chromium.org>
^ permalink raw reply [flat|nested] 3+ messages in thread* RE: [PATCH] ARM: EXYNOS: call scu_enable() only in case of cortex-A9 processor
2013-05-31 15:14 ` Doug Anderson
@ 2013-06-05 12:45 ` Kukjin Kim
0 siblings, 0 replies; 3+ messages in thread
From: Kukjin Kim @ 2013-06-05 12:45 UTC (permalink / raw)
To: 'Doug Anderson', 'Leela Krishna Amudala'
Cc: 'linux-samsung-soc', 'Tomasz Figa',
'Olof Johansson'
Doug Anderson wrote:
>
> Leela,
>
> On Fri, May 31, 2013 at 2:43 AM, Leela Krishna Amudala
> <l.krishna@samsung.com> wrote:
> > This patch reads the cpuid part number and if it matches with
> > cortex-A9, calls scu_enable()
> >
> > Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
> > ---
> > arch/arm/mach-exynos/platsmp.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-
> exynos/platsmp.c
> > index a0e8ff7..d9c6d0a 100644
> > --- a/arch/arm/mach-exynos/platsmp.c
> > +++ b/arch/arm/mach-exynos/platsmp.c
> > @@ -200,7 +200,7 @@ static void __init exynos_smp_prepare_cpus(unsigned
> int max_cpus)
> > {
> > int i;
> >
> > - if (!(soc_is_exynos5250() || soc_is_exynos5440()))
> > + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9)
> > scu_enable(scu_base_addr());
> >
> > /*
>
> Thanks for sending upstream. For reference, our local version is here
> <https://gerrit.chromium.org/gerrit/#/c/56804/>.
>
> This is much better than listing every single non-A9 exynos in a big
> "if" test. ;)
>
Yes :)
> Reviewed-by: Doug Anderson <dianders@chromium.org>
Applied, thanks.
- Kukjin
^ permalink raw reply [flat|nested] 3+ messages in thread
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2013-05-31 9:43 [PATCH] ARM: EXYNOS: call scu_enable() only in case of cortex-A9 processor Leela Krishna Amudala
2013-05-31 15:14 ` Doug Anderson
2013-06-05 12:45 ` Kukjin Kim
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