55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
/*
|
|
* arch/sh64/lib/iomap.c
|
|
*
|
|
* Generic sh64 iomap interface
|
|
*
|
|
* Copyright (C) 2004 Paul Mundt
|
|
*
|
|
* 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/pci.h>
|
|
#include <asm/io.h>
|
|
|
|
void __iomem *__attribute__ ((weak))
|
|
ioport_map(unsigned long port, unsigned int len)
|
|
{
|
|
return (void __iomem *)port;
|
|
}
|
|
|
|
void ioport_unmap(void __iomem *addr)
|
|
{
|
|
/* Nothing .. */
|
|
}
|
|
|
|
void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
|
|
{
|
|
unsigned long start = pci_resource_start(dev, bar);
|
|
unsigned long len = pci_resource_len(dev, bar);
|
|
unsigned long flags = pci_resource_flags(dev, bar);
|
|
|
|
if (!len)
|
|
return NULL;
|
|
if (max && len > max)
|
|
len = max;
|
|
if (flags & IORESOURCE_IO)
|
|
return ioport_map(start + pciio_virt, len);
|
|
if (flags & IORESOURCE_MEM)
|
|
return (void __iomem *)start;
|
|
|
|
/* What? */
|
|
return NULL;
|
|
}
|
|
|
|
void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
|
|
{
|
|
/* Nothing .. */
|
|
}
|
|
|
|
EXPORT_SYMBOL(ioport_map);
|
|
EXPORT_SYMBOL(ioport_unmap);
|
|
EXPORT_SYMBOL(pci_iomap);
|
|
EXPORT_SYMBOL(pci_iounmap);
|
|
|