3 files changed, 11 insertions, 72 deletions
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index 7bf2a2c823f..0718805774e 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -12,8 +12,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7780)	+= pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7785)	+= pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SH5)			+= pci-sh5.o ops-sh5.o
 
-obj-$(CONFIG_SH_DREAMCAST)		+= ops-dreamcast.o fixups-dreamcast.o \
-					   dma-dreamcast.o
+obj-$(CONFIG_SH_DREAMCAST)		+= ops-dreamcast.o fixups-dreamcast.o
 obj-$(CONFIG_SH_SECUREEDGE5410)		+= ops-snapgear.o
 obj-$(CONFIG_SH_RTS7751R2D)		+= ops-rts7751r2d.o fixups-rts7751r2d.o
 obj-$(CONFIG_SH_SH03)			+= ops-sh03.o fixups-sh03.o
diff --git a/arch/sh/drivers/pci/dma-dreamcast.c b/arch/sh/drivers/pci/dma-dreamcast.c
deleted file mode 100644
index 888a3405059..00000000000
--- a/arch/sh/drivers/pci/dma-dreamcast.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * arch/sh/drivers/pci/dma-dreamcast.c
- *
- * PCI DMA support for the Sega Dreamcast
- *
- * Copyright (C) 2001, 2002  M. R. Brown
- * Copyright (C) 2002, 2003  Paul Mundt
- *
- * This file originally bore the message (with enclosed-$):
- *	Id: pci.c,v 1.3 2003/05/04 19:29:46 lethal Exp
- *	Dreamcast PCI: Supports SEGA Broadband Adaptor only.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/device.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mach/pci.h>
-
-static int gapspci_dma_used = 0;
-
-void *dreamcast_consistent_alloc(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t flag)
-{
-	unsigned long buf;
-
-	if (dev && dev->bus != &pci_bus_type)
-		return NULL;
-
-	if (gapspci_dma_used + size > GAPSPCI_DMA_SIZE)
-		return ERR_PTR(-EINVAL);
-
-	buf = GAPSPCI_DMA_BASE + gapspci_dma_used;
-
-	gapspci_dma_used = PAGE_ALIGN(gapspci_dma_used+size);
-
-	*dma_handle = (dma_addr_t)buf;
-
-	buf = P2SEGADDR(buf);
-
-	/* Flush the dcache before we hand off the buffer */
-	__flush_purge_region((void *)buf, size);
-
-	return (void *)buf;
-}
-
-int dreamcast_consistent_free(struct device *dev, size_t size,
-			 void *vaddr, dma_addr_t dma_handle)
-{
-	if (dev && dev->bus != &pci_bus_type)
-		return -EINVAL;
-
-	/* XXX */
-	gapspci_dma_used = 0;
-
-	return 0;
-}
-
diff --git a/arch/sh/drivers/pci/fixups-dreamcast.c b/arch/sh/drivers/pci/fixups-dreamcast.c
index 6f53f8200dc..c44699301ee 100644
--- a/arch/sh/drivers/pci/fixups-dreamcast.c
+++ b/arch/sh/drivers/pci/fixups-dreamcast.c
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/pci.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -40,6 +41,15 @@ static void __init gapspci_fixup_resources(struct pci_dev *dev)
 		 */
 		dev->resource[1].start	= p->io_resource->start  + 0x100;
 		dev->resource[1].end	= dev->resource[1].start + 0x200 - 1;
+		/*
+		 * Redirect dma memory allocations to special memory window.
+		 */
+		BUG_ON(!dma_declare_coherent_memory(&dev->dev,
+						GAPSPCI_DMA_BASE,
+						GAPSPCI_DMA_BASE,
+						GAPSPCI_DMA_SIZE,
+						DMA_MEMORY_MAP |
+						DMA_MEMORY_EXCLUSIVE));
 		break;
 	default:
 		printk("PCI: Failed resource fixup\n");