1 /* originally from linux source (asm-ppc/io.h).
2 * Sanity added by Rob Taylor, Flying Pig Systems, 2000
10 #define pci_read_le16(addr, dest) \
11 __asm__ __volatile__("lhbrx %0,0,%1" : "=r" (dest) : \
12 "r" (addr), "m" (*addr));
14 #define pci_write_le16(addr, val) \
15 __asm__ __volatile__("sthbrx %1,0,%2" : "=m" (*addr) : \
16 "r" (val), "r" (addr));
19 #define pci_read_le32(addr, dest) \
20 __asm__ __volatile__("lwbrx %0,0,%1" : "=r" (dest) : \
21 "r" (addr), "m" (*addr));
23 #define pci_write_le32(addr, val) \
24 __asm__ __volatile__("stwbrx %1,0,%2" : "=m" (*addr) : \
25 "r" (val), "r" (addr));
27 #define pci_readb(addr,b) ((b) = *(volatile u8 *) (addr))
28 #define pci_writeb(b,addr) ((*(volatile u8 *) (addr)) = (b))
30 #if !defined(__BIG_ENDIAN)
31 #define pci_readw(addr,b) ((b) = *(volatile u16 *) (addr))
32 #define pci_readl(addr,b) ((b) = *(volatile u32 *) (addr))
33 #define pci_writew(b,addr) ((*(volatile u16 *) (addr)) = (b))
34 #define pci_writel(b,addr) ((*(volatile u32 *) (addr)) = (b))
36 #define pci_readw(addr,b) pci_read_le16((volatile u16 *)(addr),(b))
37 #define pci_readl(addr,b) pci_read_le32((volatile u32 *)(addr),(b))
38 #define pci_writew(b,addr) pci_write_le16((volatile u16 *)(addr),(b))
39 #define pci_writel(b,addr) pci_write_le32((volatile u32 *)(addr),(b))
43 #endif /* _PCI_IO_H_ */