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AX88180: use standard I/O accessors 

The current dm9000x driver accesses its memory mapped registers directly
instead of using the standard I/O accessors.  This can cause problems on
Blackfin systems as the accesses can get out of order.  So convert the
direct volatile dereferences to use the normal in/out macros.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Tested-by: Hoan Hoang <hnhoan@i-syst.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
This commit is contained in:
Mike Frysinger 2010-06-02 21:03:50 -04:00 committed by Ben Warren
parent 14f637f8f7
commit cafb14fecb
1 changed files with 8 additions and 7 deletions
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15
drivers/net/ax88180.h
View File

@ -19,6 +19,7 @@
#ifndef _AX88180_H_
#define _AX88180_H_
#include <asm/io.h>
#include <asm/types.h>
#include <config.h>
@ -354,7 +355,7 @@ struct ax88180_private {
static inline unsigned short INW (struct eth_device *dev, unsigned long addr)
{
return le16_to_cpu (*(volatile unsigned short *) (addr + dev->iobase));
return le16_to_cpu(readw(addr + (void *)dev->iobase));
}
/*
@ -363,32 +364,32 @@ static inline unsigned short INW (struct eth_device *dev, unsigned long addr)
#if defined (CONFIG_DRIVER_AX88180_16BIT)
static inline void OUTW (struct eth_device *dev, unsigned short command, unsigned long addr)
{
*(volatile unsigned short *) ((addr + dev->iobase)) = cpu_to_le16 (command);
writew(cpu_to_le16(command), addr + (void *)dev->iobase);
}
static inline unsigned short READ_RXBUF (struct eth_device *dev)
{
return le16_to_cpu (*(volatile unsigned short *) (RXBUFFER_START + dev->iobase));
return le16_to_cpu(readw(RXBUFFER_START + (void *)dev->iobase));
}
static inline void WRITE_TXBUF (struct eth_device *dev, unsigned short data)
{
*(volatile unsigned short *) ((TXBUFFER_START + dev->iobase)) = cpu_to_le16 (data);
writew(cpu_to_le16(data), TXBUFFER_START + (void *)dev->iobase);
}
#else
static inline void OUTW (struct eth_device *dev, unsigned short command, unsigned long addr)
{
*(volatile unsigned long *) ((addr + dev->iobase)) = cpu_to_le32 (command);
writel(cpu_to_le32(command), addr + (void *)dev->iobase);
}
static inline unsigned long READ_RXBUF (struct eth_device *dev)
{
return le32_to_cpu (*(volatile unsigned long *) (RXBUFFER_START + dev->iobase));
return le32_to_cpu(readl(RXBUFFER_START + (void *)dev->iobase));
}
static inline void WRITE_TXBUF (struct eth_device *dev, unsigned long data)
{
*(volatile unsigned long *) ((TXBUFFER_START + dev->iobase)) = cpu_to_le32 (data);
writel(cpu_to_le32(data), TXBUFFER_START + (void *)dev->iobase);
}
#endif