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

[Kyungmin Park]

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"

BR,
>
> 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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