| /* 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 <asm/byteorder.h> |
| |
| #ifdef CONFIG_ADDR_MAP |
| #include <asm/global_data.h> |
| #include <addr_map.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| #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 __force *)(a),(b),(c)) |
| #define memcpy_fromio(a,b,c) memcpy((a),(void __force *)(b),(c)) |
| #define memcpy_toio(a,b,c) memcpy((void __force *)(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() |
| |
| #define mb() sync() |
| #define isb() isync() |
| |
| /* |
| * Non ordered and non-swapping "raw" accessors |
| */ |
| #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. |
| */ |
| static inline u8 in_8(const volatile unsigned char __iomem *addr) |
| { |
| u8 ret; |
| |
| __asm__ __volatile__( |
| "sync; lbz%U1%X1 %0,%1;\n" |
| "twi 0,%0,0;\n" |
| "isync" : "=r" (ret) : "m" (*addr)); |
| return ret; |
| } |
| |
| static inline void out_8(volatile unsigned char __iomem *addr, u8 val) |
| { |
| __asm__ __volatile__("sync;\n" |
| "stb%U0%X0 %1,%0;\n" |
| : "=m" (*addr) |
| : "r" (val)); |
| } |
| |
| static inline u16 in_le16(const volatile unsigned short __iomem *addr) |
| { |
| u16 ret; |
| |
| __asm__ __volatile__("sync; lhbrx %0,0,%1;\n" |
| "twi 0,%0,0;\n" |
| "isync" : "=r" (ret) : |
| "r" (addr), "m" (*addr)); |
| return ret; |
| } |
| |
| static inline u16 in_be16(const volatile unsigned short __iomem *addr) |
| { |
| u16 ret; |
| |
| __asm__ __volatile__("sync; lhz%U1%X1 %0,%1;\n" |
| "twi 0,%0,0;\n" |
| "isync" : "=r" (ret) : "m" (*addr)); |
| return ret; |
| } |
| |
| static inline void out_le16(volatile unsigned short __iomem *addr, u16 val) |
| { |
| __asm__ __volatile__("sync; sthbrx %1,0,%2" : "=m" (*addr) : |
| "r" (val), "r" (addr)); |
| } |
| |
| static inline void out_be16(volatile unsigned short __iomem *addr, u16 val) |
| { |
| __asm__ __volatile__("sync; sth%U0%X0 %1,%0" : "=m" (*addr) : "r" (val)); |
| } |
| |
| static inline u32 in_le32(const volatile unsigned __iomem *addr) |
| { |
| u32 ret; |
| |
| __asm__ __volatile__("sync; lwbrx %0,0,%1;\n" |
| "twi 0,%0,0;\n" |
| "isync" : "=r" (ret) : |
| "r" (addr), "m" (*addr)); |
| return ret; |
| } |
| |
| static inline u32 in_be32(const volatile unsigned __iomem *addr) |
| { |
| u32 ret; |
| |
| __asm__ __volatile__("sync; lwz%U1%X1 %0,%1;\n" |
| "twi 0,%0,0;\n" |
| "isync" : "=r" (ret) : "m" (*addr)); |
| return ret; |
| } |
| |
| static inline void out_le32(volatile unsigned __iomem *addr, u32 val) |
| { |
| __asm__ __volatile__("sync; stwbrx %1,0,%2" : "=m" (*addr) : |
| "r" (val), "r" (addr)); |
| } |
| |
| static inline void out_be32(volatile unsigned __iomem *addr, u32 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) |
| |
| #define readb_be(addr) \ |
| __raw_readb((__force unsigned *)(addr)) |
| #define readw_be(addr) \ |
| be16_to_cpu(__raw_readw((__force unsigned *)(addr))) |
| #define readl_be(addr) \ |
| be32_to_cpu(__raw_readl((__force unsigned *)(addr))) |
| #define readq_be(addr) \ |
| be64_to_cpu(__raw_readq((__force unsigned *)(addr))) |
| |
| #define writeb_be(val, addr) \ |
| __raw_writeb((val), (__force unsigned *)(addr)) |
| #define writew_be(val, addr) \ |
| __raw_writew(cpu_to_be16((val)), (__force unsigned *)(addr)) |
| #define writel_be(val, addr) \ |
| __raw_writel(cpu_to_be32((val)), (__force unsigned *)(addr)) |
| #define writeq_be(val, addr) \ |
| __raw_writeq(cpu_to_be64((val)), (__force unsigned *)(addr)) |
| |
| static inline void *phys_to_virt(phys_addr_t paddr) |
| { |
| #ifdef CONFIG_ADDR_MAP |
| if (gd->flags & GD_FLG_RELOC) |
| return addrmap_phys_to_virt(paddr); |
| #endif |
| return (void *)((unsigned long)paddr); |
| } |
| #define phys_to_virt phys_to_virt |
| |
| static inline phys_addr_t virt_to_phys(void * vaddr) |
| { |
| #ifdef CONFIG_ADDR_MAP |
| if (gd->flags & GD_FLG_RELOC) |
| return addrmap_virt_to_phys(vaddr); |
| #endif |
| return (phys_addr_t)((unsigned long)vaddr); |
| } |
| #define virt_to_phys virt_to_phys |
| |
| #include <asm-generic/io.h> |
| |
| #endif |