[PATCH 1/4] ARM: EXYNOS4: Add DMC1, allow PPMU access for DMC.

[Kukjin Kim]

Kyungmin Park wrote:
> 
> On 12/2/11, Kukjin Kim <kgene.kim at samsung.com> wrote:
> > MyungJoo Ham wrote:
> >>
> >> - Add DMC1
> >> - Enlarge address space for DMC from 4k to 64k so that PPMU registers
> >>   may be accessed.
> >>
> >> Signed-off-by: MyungJoo Ham <myungjoo.ham at samsung.com>
> >> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
> >> ---
> >>  arch/arm/mach-exynos/cpu.c              |    7 ++++++-
> >>  arch/arm/mach-exynos/include/mach/map.h |    1 +
> >>  2 files changed, 7 insertions(+), 1 deletions(-)
> >>
> >> diff --git a/arch/arm/mach-exynos/cpu.c b/arch/arm/mach-exynos/cpu.c
> >> index 90ec247..8bdcba9 100644
> >> --- a/arch/arm/mach-exynos/cpu.c
> >> +++ b/arch/arm/mach-exynos/cpu.c
> >> @@ -108,7 +108,12 @@ static struct map_desc exynos4_iodesc[] __initdata
> =
> >> {
> >>  	}, {
> >>  		.virtual	= (unsigned long)S5P_VA_DMC0,
> >>  		.pfn		= __phys_to_pfn(EXYNOS4_PA_DMC0),
> >> -		.length		= SZ_4K,
> >> +		.length		= SZ_64K,
> >> +		.type		= MT_DEVICE,
> >> +	}, {
> >> +		.virtual	= (unsigned long)S5P_VA_DMC1,
> >> +		.pfn		= __phys_to_pfn(EXYNOS4_PA_DMC1),
> >> +		.length		= SZ_64K,
> >>  		.type		= MT_DEVICE,
> >>  	}, {
> >>  		.virtual	= (unsigned long)S5P_VA_SROMC,
> >> diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-
> >> exynos/include/mach/map.h
> >> index 058541d..870a980 100644
> >> --- a/arch/arm/mach-exynos/include/mach/map.h
> >> +++ b/arch/arm/mach-exynos/include/mach/map.h
> >> @@ -57,6 +57,7 @@
> >>  #define EXYNOS4_PA_KEYPAD		0x100A0000
> >>
> >>  #define EXYNOS4_PA_DMC0			0x10400000
> >> +#define EXYNOS4_PA_DMC1			0x10410000
> >
> > If required, so just '.length = SZ_128K'?...
> Doesn't it more confuse and difficult to use?
> 
> Even though there's not much definitions. it defines the offset concept.
> "arch/arm/mach-exynos/include/mach/regs-mem.h"
> 
OK.

Thanks.

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