[PATCH 3/3] davinci: Map sram using MT_MEMORY_NONCACHED instead of MT_DEVICE
From: Santosh Shilimkar <hidden>
Date: 2010-08-08 10:18:22
Also in:
linux-omap
Subsystem:
arm port, the rest, ti davinci machine support · Maintainers:
Russell King, Linus Torvalds, Bartosz Golaszewski
On Davinci SRAM is mapped as MT_DEVICE becasue of the section mapping pre-requisite instead of intended MT_MEMORY_NONCACHED Since the section mapping limitation gets fixed with first patch in this series, the MT_MEMORY_NONCACHED can be used now. Have not tested this, so somebody with Davinci hardware can try this out Signed-off-by: Santosh Shilimkar <redacted> Cc: davinci-linux-open-source at linux.davincidsp.com Cc: Kevin Hilman <redacted> --- arch/arm/mach-davinci/dm355.c | 3 +-- arch/arm/mach-davinci/dm365.c | 3 +-- arch/arm/mach-davinci/dm644x.c | 3 +-- arch/arm/mach-davinci/dm646x.c | 3 +-- 4 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 3834781..e7bd2ad 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c@@ -767,8 +767,7 @@ static struct map_desc dm355_io_desc[] = { .virtual = SRAM_VIRT, .pfn = __phys_to_pfn(0x00010000), .length = SZ_32K, - /* MT_MEMORY_NONCACHED requires supersection alignment */ - .type = MT_DEVICE, + .type = MT_MEMORY_NONCACHED, }, };
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index a146849..5dee032 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c@@ -967,8 +967,7 @@ static struct map_desc dm365_io_desc[] = { .virtual = SRAM_VIRT, .pfn = __phys_to_pfn(0x00010000), .length = SZ_32K, - /* MT_MEMORY_NONCACHED requires supersection alignment */ - .type = MT_DEVICE, + .type = MT_MEMORY_NONCACHED, }, };
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 7ad1520..5112d51 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c@@ -651,8 +651,7 @@ static struct map_desc dm644x_io_desc[] = { .virtual = SRAM_VIRT, .pfn = __phys_to_pfn(0x00008000), .length = SZ_16K, - /* MT_MEMORY_NONCACHED requires supersection alignment */ - .type = MT_DEVICE, + .type = MT_MEMORY_NONCACHED, }, };
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 9404565..97078f4 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c@@ -735,8 +735,7 @@ static struct map_desc dm646x_io_desc[] = { .virtual = SRAM_VIRT, .pfn = __phys_to_pfn(0x00010000), .length = SZ_32K, - /* MT_MEMORY_NONCACHED requires supersection alignment */ - .type = MT_DEVICE, + .type = MT_MEMORY_NONCACHED, }, };
--
1.6.0.4