diff options
Diffstat (limited to 'include/asm-ppc/io.h')
| -rw-r--r-- | include/asm-ppc/io.h | 318 |
1 files changed, 0 insertions, 318 deletions
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h deleted file mode 100644 index 4ddad26..0000000 --- a/include/asm-ppc/io.h +++ /dev/null @@ -1,318 +0,0 @@ -/* originally from linux source. - * removed the dependencies on CONFIG_ values - * removed virt_to_phys stuff (and in fact everything surrounded by #if __KERNEL__) - * Modified By Rob Taylor, Flying Pig Systems, 2000 - */ - -#ifndef _PPC_IO_H -#define _PPC_IO_H - -#include <linux/config.h> -#include <asm/byteorder.h> - -#ifdef CONFIG_ADDR_MAP -#include <addr_map.h> -#endif - -#define SIO_CONFIG_RA 0x398 -#define SIO_CONFIG_RD 0x399 - -#ifndef _IO_BASE -#define _IO_BASE 0 -#endif - -#define readb(addr) in_8((volatile u8 *)(addr)) -#define writeb(b,addr) out_8((volatile u8 *)(addr), (b)) -#if !defined(__BIG_ENDIAN) -#define readw(addr) (*(volatile u16 *) (addr)) -#define readl(addr) (*(volatile u32 *) (addr)) -#define writew(b,addr) ((*(volatile u16 *) (addr)) = (b)) -#define writel(b,addr) ((*(volatile u32 *) (addr)) = (b)) -#else -#define readw(addr) in_le16((volatile u16 *)(addr)) -#define readl(addr) in_le32((volatile u32 *)(addr)) -#define writew(b,addr) out_le16((volatile u16 *)(addr),(b)) -#define writel(b,addr) out_le32((volatile u32 *)(addr),(b)) -#endif - -/* - * The insw/outsw/insl/outsl macros don't do byte-swapping. - * They are only used in practice for transferring buffers which - * are arrays of bytes, and byte-swapping is not appropriate in - * that case. - paulus - */ -#define insb(port, buf, ns) _insb((u8 *)((port)+_IO_BASE), (buf), (ns)) -#define outsb(port, buf, ns) _outsb((u8 *)((port)+_IO_BASE), (buf), (ns)) -#define insw(port, buf, ns) _insw_ns((u16 *)((port)+_IO_BASE), (buf), (ns)) -#define outsw(port, buf, ns) _outsw_ns((u16 *)((port)+_IO_BASE), (buf), (ns)) -#define insl(port, buf, nl) _insl_ns((u32 *)((port)+_IO_BASE), (buf), (nl)) -#define outsl(port, buf, nl) _outsl_ns((u32 *)((port)+_IO_BASE), (buf), (nl)) - -#define inb(port) in_8((u8 *)((port)+_IO_BASE)) -#define outb(val, port) out_8((u8 *)((port)+_IO_BASE), (val)) -#if !defined(__BIG_ENDIAN) -#define inw(port) in_be16((u16 *)((port)+_IO_BASE)) -#define outw(val, port) out_be16((u16 *)((port)+_IO_BASE), (val)) -#define inl(port) in_be32((u32 *)((port)+_IO_BASE)) -#define outl(val, port) out_be32((u32 *)((port)+_IO_BASE), (val)) -#else -#define inw(port) in_le16((u16 *)((port)+_IO_BASE)) -#define outw(val, port) out_le16((u16 *)((port)+_IO_BASE), (val)) -#define inl(port) in_le32((u32 *)((port)+_IO_BASE)) -#define outl(val, port) out_le32((u32 *)((port)+_IO_BASE), (val)) -#endif - -#define inb_p(port) in_8((u8 *)((port)+_IO_BASE)) -#define outb_p(val, port) out_8((u8 *)((port)+_IO_BASE), (val)) -#define inw_p(port) in_le16((u16 *)((port)+_IO_BASE)) -#define outw_p(val, port) out_le16((u16 *)((port)+_IO_BASE), (val)) -#define inl_p(port) in_le32((u32 *)((port)+_IO_BASE)) -#define outl_p(val, port) out_le32((u32 *)((port)+_IO_BASE), (val)) - -extern void _insb(volatile u8 *port, void *buf, int ns); -extern void _outsb(volatile u8 *port, const void *buf, int ns); -extern void _insw(volatile u16 *port, void *buf, int ns); -extern void _outsw(volatile u16 *port, const void *buf, int ns); -extern void _insl(volatile u32 *port, void *buf, int nl); -extern void _outsl(volatile u32 *port, const void *buf, int nl); -extern void _insw_ns(volatile u16 *port, void *buf, int ns); -extern void _outsw_ns(volatile u16 *port, const void *buf, int ns); -extern void _insl_ns(volatile u32 *port, void *buf, int nl); -extern void _outsl_ns(volatile u32 *port, const void *buf, int nl); - -/* - * The *_ns versions below don't do byte-swapping. - * Neither do the standard versions now, these are just here - * for older code. - */ -#define insw_ns(port, buf, ns) _insw_ns((u16 *)((port)+_IO_BASE), (buf), (ns)) -#define outsw_ns(port, buf, ns) _outsw_ns((u16 *)((port)+_IO_BASE), (buf), (ns)) -#define insl_ns(port, buf, nl) _insl_ns((u32 *)((port)+_IO_BASE), (buf), (nl)) -#define outsl_ns(port, buf, nl) _outsl_ns((u32 *)((port)+_IO_BASE), (buf), (nl)) - - -#define IO_SPACE_LIMIT ~0 - -#define memset_io(a,b,c) memset((void *)(a),(b),(c)) -#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c)) -#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c)) - -/* - * Enforce In-order Execution of I/O: - * Acts as a barrier to ensure all previous I/O accesses have - * completed before any further ones are issued. - */ -static inline void eieio(void) -{ - __asm__ __volatile__ ("eieio" : : : "memory"); -} - -static inline void sync(void) -{ - __asm__ __volatile__ ("sync" : : : "memory"); -} - -static inline void isync(void) -{ - __asm__ __volatile__ ("isync" : : : "memory"); -} - -/* Enforce in-order execution of data I/O. - * No distinction between read/write on PPC; use eieio for all three. - */ -#define iobarrier_rw() eieio() -#define iobarrier_r() eieio() -#define iobarrier_w() eieio() - -/* - * Non ordered and non-swapping "raw" accessors - */ -#define __iomem -#define PCI_FIX_ADDR(addr) (addr) - -static inline unsigned char __raw_readb(const volatile void __iomem *addr) -{ - return *(volatile unsigned char *)PCI_FIX_ADDR(addr); -} -static inline unsigned short __raw_readw(const volatile void __iomem *addr) -{ - return *(volatile unsigned short *)PCI_FIX_ADDR(addr); -} -static inline unsigned int __raw_readl(const volatile void __iomem *addr) -{ - return *(volatile unsigned int *)PCI_FIX_ADDR(addr); -} -static inline void __raw_writeb(unsigned char v, volatile void __iomem *addr) -{ - *(volatile unsigned char *)PCI_FIX_ADDR(addr) = v; -} -static inline void __raw_writew(unsigned short v, volatile void __iomem *addr) -{ - *(volatile unsigned short *)PCI_FIX_ADDR(addr) = v; -} -static inline void __raw_writel(unsigned int v, volatile void __iomem *addr) -{ - *(volatile unsigned int *)PCI_FIX_ADDR(addr) = v; -} - -/* - * 8, 16 and 32 bit, big and little endian I/O operations, with barrier. - * - * Read operations have additional twi & isync to make sure the read - * is actually performed (i.e. the data has come back) before we start - * executing any following instructions. - */ -extern inline int in_8(const volatile unsigned char __iomem *addr) -{ - int ret; - - __asm__ __volatile__( - "sync; lbz%U1%X1 %0,%1;\n" - "twi 0,%0,0;\n" - "isync" : "=r" (ret) : "m" (*addr)); - return ret; -} - -extern inline void out_8(volatile unsigned char __iomem *addr, int val) -{ - __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val)); -} - -extern inline int in_le16(const volatile unsigned short __iomem *addr) -{ - int ret; - - __asm__ __volatile__("sync; lhbrx %0,0,%1;\n" - "twi 0,%0,0;\n" - "isync" : "=r" (ret) : - "r" (addr), "m" (*addr)); - return ret; -} - -extern inline int in_be16(const volatile unsigned short __iomem *addr) -{ - int ret; - - __asm__ __volatile__("sync; lhz%U1%X1 %0,%1;\n" - "twi 0,%0,0;\n" - "isync" : "=r" (ret) : "m" (*addr)); - return ret; -} - -extern inline void out_le16(volatile unsigned short __iomem *addr, int val) -{ - __asm__ __volatile__("sync; sthbrx %1,0,%2" : "=m" (*addr) : - "r" (val), "r" (addr)); -} - -extern inline void out_be16(volatile unsigned short __iomem *addr, int val) -{ - __asm__ __volatile__("sync; sth%U0%X0 %1,%0" : "=m" (*addr) : "r" (val)); -} - -extern inline unsigned in_le32(const volatile unsigned __iomem *addr) -{ - unsigned ret; - - __asm__ __volatile__("sync; lwbrx %0,0,%1;\n" - "twi 0,%0,0;\n" - "isync" : "=r" (ret) : - "r" (addr), "m" (*addr)); - return ret; -} - -extern inline unsigned in_be32(const volatile unsigned __iomem *addr) -{ - unsigned ret; - - __asm__ __volatile__("sync; lwz%U1%X1 %0,%1;\n" - "twi 0,%0,0;\n" - "isync" : "=r" (ret) : "m" (*addr)); - return ret; -} - -extern inline void out_le32(volatile unsigned __iomem *addr, int val) -{ - __asm__ __volatile__("sync; stwbrx %1,0,%2" : "=m" (*addr) : - "r" (val), "r" (addr)); -} - -extern inline void out_be32(volatile unsigned __iomem *addr, int val) -{ - __asm__ __volatile__("sync; stw%U0%X0 %1,%0" : "=m" (*addr) : "r" (val)); -} - -/* Clear and set bits in one shot. These macros can be used to clear and - * set multiple bits in a register using a single call. These macros can - * also be used to set a multiple-bit bit pattern using a mask, by - * specifying the mask in the 'clear' parameter and the new bit pattern - * in the 'set' parameter. - */ - -#define clrbits(type, addr, clear) \ - out_##type((addr), in_##type(addr) & ~(clear)) - -#define setbits(type, addr, set) \ - out_##type((addr), in_##type(addr) | (set)) - -#define clrsetbits(type, addr, clear, set) \ - out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) - -#define clrbits_be32(addr, clear) clrbits(be32, addr, clear) -#define setbits_be32(addr, set) setbits(be32, addr, set) -#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) - -#define clrbits_le32(addr, clear) clrbits(le32, addr, clear) -#define setbits_le32(addr, set) setbits(le32, addr, set) -#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) - -#define clrbits_be16(addr, clear) clrbits(be16, addr, clear) -#define setbits_be16(addr, set) setbits(be16, addr, set) -#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) - -#define clrbits_le16(addr, clear) clrbits(le16, addr, clear) -#define setbits_le16(addr, set) setbits(le16, addr, set) -#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) - -#define clrbits_8(addr, clear) clrbits(8, addr, clear) -#define setbits_8(addr, set) setbits(8, addr, set) -#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) - -/* - * Given a physical address and a length, return a virtual address - * that can be used to access the memory range with the caching - * properties specified by "flags". - */ -#define MAP_NOCACHE (0) -#define MAP_WRCOMBINE (0) -#define MAP_WRBACK (0) -#define MAP_WRTHROUGH (0) - -static inline void * -map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) -{ -#ifdef CONFIG_ADDR_MAP - return (void *)(addrmap_phys_to_virt(paddr)); -#else - return (void *)((unsigned long)paddr); -#endif -} - -/* - * Take down a mapping set up by map_physmem(). - */ -static inline void unmap_physmem(void *vaddr, unsigned long flags) -{ - -} - -static inline phys_addr_t virt_to_phys(void * vaddr) -{ -#ifdef CONFIG_ADDR_MAP - return addrmap_virt_to_phys(vaddr); -#else - return (phys_addr_t)((unsigned long)vaddr); -#endif -} - -#endif |