---

yaml --- r: 340022 b: refs/heads/master c: 626863a h: refs/heads/master v: v3
git-mirror · Oct 27, 2012 · 87d641f · 87d641f
1 parent bd93fad
commit 87d641f
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Showing 8 changed files with 16 additions and 36 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2eb2478d471e45e1d0c8bb3defbf82bf7204e13d
+refs/heads/master: 626863a3f32f0baaf55a1d18b8d4fbb937700dda
diff --git a/trunk/arch/arm/mach-davinci/da850.c b/trunk/arch/arm/mach-davinci/da850.c
@@ -781,12 +781,6 @@ static struct map_desc da850_io_desc[] = {
 		.length		= DA8XX_CP_INTC_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(DA8XX_ARM_RAM_BASE),
-		.length		= SZ_8K,
-		.type		= MT_DEVICE
-	},
 };
 
 static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };

diff --git a/trunk/arch/arm/mach-davinci/dm355.c b/trunk/arch/arm/mach-davinci/dm355.c
@@ -758,12 +758,6 @@ static struct map_desc dm355_io_desc[] = {
 		.length		= IO_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(0x00010000),
-		.length		= SZ_32K,
-		.type		= MT_MEMORY_NONCACHED,
-	},
 };
 
 /* Contents of JTAG ID register used to identify exact cpu type */

diff --git a/trunk/arch/arm/mach-davinci/dm365.c b/trunk/arch/arm/mach-davinci/dm365.c
@@ -985,12 +985,6 @@ static struct map_desc dm365_io_desc[] = {
 		.length		= IO_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(0x00010000),
-		.length		= SZ_32K,
-		.type		= MT_MEMORY_NONCACHED,
-	},
 };
 
 static struct resource dm365_ks_resources[] = {

diff --git a/trunk/arch/arm/mach-davinci/dm644x.c b/trunk/arch/arm/mach-davinci/dm644x.c
@@ -786,12 +786,6 @@ static struct map_desc dm644x_io_desc[] = {
 		.length		= IO_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(0x00008000),
-		.length		= SZ_16K,
-		.type		= MT_MEMORY_NONCACHED,
-	},
 };
 
 /* Contents of JTAG ID register used to identify exact cpu type */

diff --git a/trunk/arch/arm/mach-davinci/dm646x.c b/trunk/arch/arm/mach-davinci/dm646x.c
@@ -756,12 +756,6 @@ static struct map_desc dm646x_io_desc[] = {
 		.length		= IO_SIZE,
 		.type		= MT_DEVICE
 	},
-	{
-		.virtual	= SRAM_VIRT,
-		.pfn		= __phys_to_pfn(0x00010000),
-		.length		= SZ_32K,
-		.type		= MT_MEMORY_NONCACHED,
-	},
 };
 
 /* Contents of JTAG ID register used to identify exact cpu type */

diff --git a/trunk/arch/arm/mach-davinci/include/mach/common.h b/trunk/arch/arm/mach-davinci/include/mach/common.h
@@ -104,8 +104,6 @@ int davinci_pm_init(void);
 static inline int davinci_pm_init(void) { return 0; }
 #endif
 
-/* standard place to map on-chip SRAMs; they *may* support DMA */
-#define SRAM_VIRT	0xfffe0000
 #define SRAM_SIZE	SZ_128K
 
 #endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */
diff --git a/trunk/arch/arm/mach-davinci/sram.c b/trunk/arch/arm/mach-davinci/sram.c
@@ -10,6 +10,7 @@
  */
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/genalloc.h>
 
 #include <mach/common.h>
@@ -32,7 +33,7 @@ void *sram_alloc(size_t len, dma_addr_t *dma)
 		return NULL;
 
 	if (dma)
-		*dma = dma_base + (vaddr - SRAM_VIRT);
+		*dma = gen_pool_virt_to_phys(sram_pool, vaddr);
 	return (void *)vaddr;
 
 }
@@ -53,17 +54,28 @@ EXPORT_SYMBOL(sram_free);
  */
 static int __init sram_init(void)
 {
+	phys_addr_t phys = davinci_soc_info.sram_dma;
 	unsigned len = davinci_soc_info.sram_len;
 	int status = 0;
+	void *addr;
 
 	if (len) {
 		len = min_t(unsigned, len, SRAM_SIZE);
 		sram_pool = gen_pool_create(ilog2(SRAM_GRANULARITY), -1);
 		if (!sram_pool)
 			status = -ENOMEM;
 	}
-	if (sram_pool)
-		status = gen_pool_add(sram_pool, SRAM_VIRT, len, -1);
+
+	if (sram_pool) {
+		addr = ioremap(phys, len);
+		if (!addr)
+			return -ENOMEM;
+		status = gen_pool_add_virt(sram_pool, (unsigned)addr,
+					   phys, len, -1);
+		if (status < 0)
+			iounmap(addr);
+	}
+
 	WARN_ON(status < 0);
 	return status;
 }