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[PATCH] ARM: Add iomap support for ARM

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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2005-06-20 18:44:37 +01:00
parent a507ef3ac6
commit 09f0551d20
3 changed files with 74 additions and 4 deletions
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27
include/asm-arm/io.h
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@@ -272,6 +272,33 @@ extern void __iounmap(void __iomem *addr);
#define iounmap(cookie) __arch_iounmap(cookie)
#endif
/*
* io{read,write}{8,16,32} macros
*/
#define ioread8(p) ({ unsigned int __v = __raw_readb(p); __v; })
#define ioread16(p) ({ unsigned int __v = le16_to_cpu(__raw_readw(p)); __v; })
#define ioread32(p) ({ unsigned int __v = le32_to_cpu(__raw_readl(p)); __v; })
#define iowrite8(v,p) __raw_writeb(v, p)
#define iowrite16(v,p) __raw_writew(cpu_to_le16(v), p)
#define iowrite32(v,p) __raw_writel(cpu_to_le32(v), p)
#define ioread8_rep(p,d,c) __raw_readsb(p,d,c)
#define ioread16_rep(p,d,c) __raw_readsw(p,d,c)
#define ioread32_rep(p,d,c) __raw_readsl(p,d,c)
#define iowrite8_rep(p,s,c) __raw_writesb(p,s,c)
#define iowrite16_rep(p,s,c) __raw_writesw(p,s,c)
#define iowrite32_rep(p,s,c) __raw_writesl(p,s,c)
extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
extern void ioport_unmap(void __iomem *addr);
struct pci_dev;
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen);
extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
/*
* can the hardware map this into one segment or not, given no other
* constraints.