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Commit 147056fb authored by David Vrabel's avatar David Vrabel Committed by Russell King
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[ARM] 2869/1: ixp4xx: correct ioread*/iowrite* 



Patch from David Vrabel

Correct the ioread* and iowrite* functions.  In particular, add an offset to the cookie in ioport_map so we can map I/O port ranges starting from 0 (0 is for reporting errors).

Signed-off-by: default avatarDavid Vrabel <dvrabel@arcom.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent dcb86e8c

include/asm-arm/arch-ixp4xx/io.h

+60 −42
Original line number Diff line number Diff line
@@ -383,39 +383,45 @@ __ixp4xx_insl(u32 io_addr, u32 *vaddr, u32 count) 
		*vaddr++ = inl(io_addr);

}



#define	__is_io_address(p)	(((unsigned long)p >= 0x0) && \

					((unsigned long)p <= 0x0000ffff))

#define PIO_OFFSET      0x10000UL

#define PIO_MASK        0x0ffffUL



#define	__is_io_address(p)	(((unsigned long)p >= PIO_OFFSET) && \

					((unsigned long)p <= (PIO_MASK + PIO_OFFSET)))

static inline unsigned int

__ixp4xx_ioread8(void __iomem *port)

__ixp4xx_ioread8(void __iomem *addr)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		return	(unsigned int)__ixp4xx_inb((unsigned int)port);

		return	(unsigned int)__ixp4xx_inb(port & PIO_MASK);

	else

#ifndef CONFIG_IXP4XX_INDIRECT_PCI

		return (unsigned int)__raw_readb((u32)port);

		return (unsigned int)__raw_readb(port);

#else

		return (unsigned int)__ixp4xx_readb((u32)port);

		return (unsigned int)__ixp4xx_readb(port);

#endif

}



static inline void

__ixp4xx_ioread8_rep(u32 port, u8 *vaddr, u32 count)

__ixp4xx_ioread8_rep(void __iomem *addr, void *vaddr, u32 count)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		__ixp4xx_insb(port, vaddr, count);

		__ixp4xx_insb(port & PIO_MASK, vaddr, count);

	else

#ifndef	CONFIG_IXP4XX_INDIRECT_PCI

		__raw_readsb((void __iomem *)port, vaddr, count);

		__raw_readsb(addr, vaddr, count);

#else

		__ixp4xx_readsb(port, vaddr, count);

#endif

}



static inline unsigned int

__ixp4xx_ioread16(void __iomem *port)

__ixp4xx_ioread16(void __iomem *addr)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		return	(unsigned int)__ixp4xx_inw((unsigned int)port);

		return	(unsigned int)__ixp4xx_inw(port & PIO_MASK);

	else

#ifndef CONFIG_IXP4XX_INDIRECT_PCI

		return le16_to_cpu(__raw_readw((u32)port));
@@ -425,23 +431,25 @@ __ixp4xx_ioread16(void __iomem *port) 
}



static inline void

__ixp4xx_ioread16_rep(u32 port, u16 *vaddr, u32 count)

__ixp4xx_ioread16_rep(void __iomem *addr, void *vaddr, u32 count)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		__ixp4xx_insw(port, vaddr, count);

		__ixp4xx_insw(port & PIO_MASK, vaddr, count);

	else

#ifndef	CONFIG_IXP4XX_INDIRECT_PCI

		__raw_readsw((void __iomem *)port, vaddr, count);

		__raw_readsw(addr, vaddr, count);

#else

		__ixp4xx_readsw(port, vaddr, count);

#endif

}



static inline unsigned int

__ixp4xx_ioread32(void __iomem *port)

__ixp4xx_ioread32(void __iomem *addr)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		return	(unsigned int)__ixp4xx_inl((unsigned int)port);

		return	(unsigned int)__ixp4xx_inl(port & PIO_MASK);

	else {

#ifndef CONFIG_IXP4XX_INDIRECT_PCI

		return le32_to_cpu(__raw_readl((u32)port));
@@ -452,90 +460,100 @@ __ixp4xx_ioread32(void __iomem *port) 
}



static inline void

__ixp4xx_ioread32_rep(u32 port, u32 *vaddr, u32 count)

__ixp4xx_ioread32_rep(void __iomem *addr, void *vaddr, u32 count)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		__ixp4xx_insl(port, vaddr, count);

		__ixp4xx_insl(port & PIO_MASK, vaddr, count);

	else

#ifndef	CONFIG_IXP4XX_INDIRECT_PCI

		__raw_readsl((void __iomem *)port, vaddr, count);

		__raw_readsl(addr, vaddr, count);

#else

		__ixp4xx_readsl(port, vaddr, count);

#endif

}



static inline void

__ixp4xx_iowrite8(u8 value, void __iomem *port)

__ixp4xx_iowrite8(u8 value, void __iomem *addr)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		__ixp4xx_outb(value, (unsigned int)port);

		__ixp4xx_outb(value, port & PIO_MASK);

	else

#ifndef CONFIG_IXP4XX_INDIRECT_PCI

		__raw_writeb(value, (u32)port);

		__raw_writeb(value, port);

#else

		__ixp4xx_writeb(value, (u32)port);

		__ixp4xx_writeb(value, port);

#endif

}



static inline void

__ixp4xx_iowrite8_rep(u32 port, u8 *vaddr, u32 count)

__ixp4xx_iowrite8_rep(void __iomem *addr, const void *vaddr, u32 count)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		__ixp4xx_outsb(port, vaddr, count);

		__ixp4xx_outsb(port & PIO_MASK, vaddr, count);

	else

#ifndef CONFIG_IXP4XX_INDIRECT_PCI

		__raw_writesb((void __iomem *)port, vaddr, count);

		__raw_writesb(addr, vaddr, count);

#else

		__ixp4xx_writesb(port, vaddr, count);

#endif

}



static inline void

__ixp4xx_iowrite16(u16 value, void __iomem *port)

__ixp4xx_iowrite16(u16 value, void __iomem *addr)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		__ixp4xx_outw(value, (unsigned int)port);

		__ixp4xx_outw(value, port & PIO_MASK);

	else

#ifndef CONFIG_IXP4XX_INDIRECT_PCI

		__raw_writew(cpu_to_le16(value), (u32)port);

		__raw_writew(cpu_to_le16(value), addr);

#else

		__ixp4xx_writew(value, (u32)port);

		__ixp4xx_writew(value, port);

#endif

}



static inline void

__ixp4xx_iowrite16_rep(u32 port, u16 *vaddr, u32 count)

__ixp4xx_iowrite16_rep(void __iomem *addr, const void *vaddr, u32 count)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		__ixp4xx_outsw(port, vaddr, count);

		__ixp4xx_outsw(port & PIO_MASK, vaddr, count);

	else

#ifndef CONFIG_IXP4XX_INDIRECT_PCI

		__raw_readsw((void __iomem *)port, vaddr, count);

		__raw_writesw(addr, vaddr, count);

#else

		__ixp4xx_writesw(port, vaddr, count);

#endif

}



static inline void

__ixp4xx_iowrite32(u32 value, void __iomem *port)

__ixp4xx_iowrite32(u32 value, void __iomem *addr)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		__ixp4xx_outl(value, (unsigned int)port);

		__ixp4xx_outl(value, port & PIO_MASK);

	else

#ifndef CONFIG_IXP4XX_INDIRECT_PCI

		__raw_writel(cpu_to_le32(value), (u32)port);

		__raw_writel(cpu_to_le32(value), port);

#else

		__ixp4xx_writel(value, (u32)port);

		__ixp4xx_writel(value, port);

#endif

}



static inline void

__ixp4xx_iowrite32_rep(u32 port, u32 *vaddr, u32 count)

__ixp4xx_iowrite32_rep(void __iomem *addr, const void *vaddr, u32 count)

{

	unsigned long port = (unsigned long __force)addr;

	if (__is_io_address(port))

		__ixp4xx_outsl(port, vaddr, count);

		__ixp4xx_outsl(port & PIO_MASK, vaddr, count);

	else

#ifndef CONFIG_IXP4XX_INDIRECT_PCI

		__raw_readsl((void __iomem *)port, vaddr, count);

		__raw_writesl(addr, vaddr, count);

#else

		__ixp4xx_outsl(port, vaddr, count);

		__ixp4xx_writesl(port, vaddr, count);

#endif

}
@@ -555,7 +573,7 @@ __ixp4xx_iowrite32_rep(u32 port, u32 *vaddr, u32 count) 
#define	iowrite16_rep(p, v, c)		__ixp4xx_iowrite16_rep(p, v, c)

#define	iowrite32_rep(p, v, c)		__ixp4xx_iowrite32_rep(p, v, c)



#define	ioport_map(port, nr)		((void __iomem*)port)

#define	ioport_map(port, nr)		((void __iomem*)(port + PIO_OFFSET))

#define	ioport_unmap(addr)



#endif	//  __ASM_ARM_ARCH_IO_H