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-rw-r--r--arch/m68k/include/asm/io_no.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h
index e9c70f754e02..42d61d4f4b86 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -18,6 +18,35 @@
#define __raw_writew(b, addr) (void)((*(volatile unsigned short *) (addr)) = (b))
#define __raw_writel(b, addr) (void)((*(volatile unsigned int *) (addr)) = (b))
+#if defined(CONFIG_PCI) && defined(CONFIG_COLDFIRE)
+/*
+ * Support for PCI bus access uses the asm-generic access functions.
+ * We need to supply the base address and masks for the normal memory
+ * and IO address space mappings.
+ */
+#include <asm/byteorder.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+
+#define PCI_MEM_PA 0xf0000000 /* Host physical address */
+#define PCI_MEM_BA 0xf0000000 /* Bus physical address */
+#define PCI_MEM_SIZE 0x08000000 /* 128 MB */
+#define PCI_MEM_MASK (PCI_MEM_SIZE - 1)
+
+#define PCI_IO_PA 0xf8000000 /* Host physical address */
+#define PCI_IO_BA 0x00000000 /* Bus physical address */
+#define PCI_IO_SIZE 0x00010000 /* 64k */
+#define PCI_IO_MASK (PCI_IO_SIZE - 1)
+
+#define HAVE_ARCH_PIO_SIZE
+#define PIO_OFFSET 0
+#define PIO_MASK 0xffff
+#define PIO_RESERVED 0x10000
+#define PCI_IOBASE ((void __iomem *) PCI_IO_PA)
+#define PCI_SPACE_LIMIT PCI_IO_MASK
+
+#else
+
#define readb __raw_readb
#define readw __raw_readw
#define readl __raw_readl
@@ -25,6 +54,8 @@
#define writew __raw_writew
#define writel __raw_writel
+#endif /* CONFIG_PCI && CONFIG_COLDFIRE */
+
/*
* These are defined in kmap.h as static inline functions. To maintain
* previous behavior we put these define guards here so io_mm.h doesn't