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Subject[PATCHv2 3/8] ARM: EXYNOS: Add IO mapping for PMU of Exynos3250
Date
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>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
---
Arnd Bergmann suggested that need proper driver instead of static memory mapping.
As Chanho Park reply[2], Sachin Kamat already posted the DT support patch[1]
for memory mapping for SYSRAM.
[1] http://www.spinics.net/lists/linux-samsung-soc/msg27647.html
[2] https://lkml.org/lkml/2014/4/10/161

So, I'm going to re-implement following patch related to static memory mapping
after merged Sachin Kamat patch[1].
ARM: EXYNOS: Add IO mapping for PMU of Exynos3250

arch/arm/mach-exynos/exynos.c | 5 +++++
arch/arm/mach-exynos/include/mach/map.h | 1 +
2 files changed, 6 insertions(+)

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index c7c9472..8f6f73d 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

--
1.8.0


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