diff mbox

[03/27] ARM: EXYNOS: Add IO mapping for PMU of Exynos3250

Message ID 1397122124-15690-4-git-send-email-cw00.choi@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Chanwoo Choi April 10, 2014, 9:28 a.m. UTC 
This patch add memory mapping for PMU (Power Management Unit) which is used
for power control of Exynos3250.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 arch/arm/mach-exynos/exynos.c           | 5 +++++
 arch/arm/mach-exynos/include/mach/map.h | 1 +
 2 files changed, 6 insertions(+)

Comments

Arnd Bergmann April 10, 2014, 9:46 a.m. UTC | #1 
On Thursday 10 April 2014 18:28:20 Chanwoo Choi wrote:
> This patch add memory mapping for PMU (Power Management Unit) which is used
> for power control of Exynos3250.
> 
> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

Same thing as for the SRAM here, can you work on making this a proper
driver instead?

	Arnd
Chanwoo Choi April 14, 2014, 6:04 a.m. UTC | #2 
Dear Arnd and Kukjin,

On 04/10/2014 06:46 PM, Arnd Bergmann wrote:
> On Thursday 10 April 2014 18:28:20 Chanwoo Choi wrote:
>> This patch add memory mapping for PMU (Power Management Unit) which is used
>> for power control of Exynos3250.
>>
>> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
>> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
> 
> Same thing as for the SRAM here, can you work on making this a proper
> driver instead?
> 

As Chanho Park said, Sachin already submitted the DT support[1] for SYSRAM area.
[1] : http://www.spinics.net/lists/linux-samsung-soc/msg27647.html

But, this patch has not yet to merge git repository(linux-samsung.git, arm-soc.git).
So, I'll make a driver to handle PMU memory mapping after Sachin's patch is merged.

Best Regards,
Chanwoo Choi
diff mbox

Patch

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index cad3bfd..628e4b1 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -41,6 +41,11 @@  static struct map_desc exynos3250_iodesc[] __initdata = {
 		.pfn		= __phys_to_pfn(EXYNOS3_PA_SYSRAM_NS),
 		.length		= SZ_4K,
 		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)S5P_VA_PMU,
+		.pfn		= __phys_to_pfn(EXYNOS3_PA_PMU),
+		.length		= SZ_64K,
+		.type		= MT_DEVICE,
 	},
 };
 
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index a53981b..4aea694 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -36,6 +36,7 @@ 
 #define EXYNOS4_PA_SYSCON		0x10010000
 #define EXYNOS5_PA_SYSCON		0x10050100
 
+#define EXYNOS3_PA_PMU			0x10020000
 #define EXYNOS4_PA_PMU			0x10020000
 #define EXYNOS5_PA_PMU			0x10040000