aboutsummaryrefslogtreecommitdiff
path: root/arch/sh/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sh/drivers')
-rw-r--r--arch/sh/drivers/pci/Makefile3
-rw-r--r--arch/sh/drivers/pci/dma-dreamcast.c70
-rw-r--r--arch/sh/drivers/pci/fixups-dreamcast.c10
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");