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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-m68k/] [io.h] - Blame information for rev 1774

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Line No. Rev Author Line
1 1276 phoenix
/*
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 * linux/include/asm-m68k/io.h
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 *
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 * 4/1/00 RZ: - rewritten to avoid clashes between ISA/PCI and other
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 *              IO access
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 *            - added Q40 support
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 *            - added skeleton for GG-II and Amiga PCMCIA
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 * 2/3/01 RZ: - moved a few more defs into raw_io.h
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 *
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 * inX/outX/readX/writeX should not be used by any driver unless it does
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 * ISA or PCI access. Other drivers should use function defined in raw_io.h
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 * or define its own macros on top of these.
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 *
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 *    inX(),outX()              are for PCI and ISA I/O
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 *    readX(),writeX()          are for PCI memory
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 *    isa_readX(),isa_writeX()  are for ISA memory
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 *
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 * moved mem{cpy,set}_*io inside CONFIG_PCI
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 */
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#ifndef _IO_H
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#define _IO_H
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#ifdef __KERNEL__
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#include <linux/config.h>
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#include <asm/raw_io.h>
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#include <asm/virtconvert.h>
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#ifdef CONFIG_ATARI
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#include <asm/atarihw.h>
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#endif
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/*
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 * IO/MEM definitions for various ISA bridges
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 */
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#ifdef CONFIG_Q40
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#define q40_isa_io_base  0xff400000
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#define q40_isa_mem_base 0xff800000
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#define Q40_ISA_IO_B(ioaddr) (q40_isa_io_base+1+4*((unsigned long)(ioaddr)))
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#define Q40_ISA_IO_W(ioaddr) (q40_isa_io_base+  4*((unsigned long)(ioaddr)))
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#define Q40_ISA_MEM_B(madr)  (q40_isa_mem_base+1+4*((unsigned long)(madr)))
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#define Q40_ISA_MEM_W(madr)  (q40_isa_mem_base+  4*((unsigned long)(madr)))
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#define MULTI_ISA 0
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#endif /* Q40 */
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/* GG-II Zorro to ISA bridge */
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#ifdef CONFIG_GG2
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extern unsigned long gg2_isa_base;
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#define GG2_ISA_IO_B(ioaddr) (gg2_isa_base+1+((unsigned long)(ioaddr)*4))
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#define GG2_ISA_IO_W(ioaddr) (gg2_isa_base+  ((unsigned long)(ioaddr)*4))
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#define GG2_ISA_MEM_B(madr)  (gg2_isa_base+1+(((unsigned long)(madr)*4) & 0xfffff))
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#define GG2_ISA_MEM_W(madr)  (gg2_isa_base+  (((unsigned long)(madr)*4) & 0xfffff))
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#ifndef MULTI_ISA
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#define MULTI_ISA 0
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#else 
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#undef MULTI_ISA
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#define MULTI_ISA 1
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#endif
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#endif /* GG2 */
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#ifdef CONFIG_AMIGA_PCMCIA
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#include <asm/amigayle.h>
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#define AG_ISA_IO_B(ioaddr) ( GAYLE_IO+(ioaddr)+(((ioaddr)&1)*GAYLE_ODD) )
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#define AG_ISA_IO_W(ioaddr) ( GAYLE_IO+(ioaddr) )
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#ifndef MULTI_ISA
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#define MULTI_ISA 0
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#else 
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#undef MULTI_ISA
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#define MULTI_ISA 1
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#endif
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#endif /* AMIGA_PCMCIA */
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#ifdef CONFIG_ISA
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#if MULTI_ISA == 0
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#undef MULTI_ISA
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#endif
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#define Q40_ISA (1)
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#define GG2_ISA (2)
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#define AG_ISA  (3)
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#if defined(CONFIG_Q40) && !defined(MULTI_ISA)
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#define ISA_TYPE Q40_ISA
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#define ISA_SEX  0
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#endif
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#if defined(CONFIG_AMIGA_PCMCIA) && !defined(MULTI_ISA)
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#define ISA_TYPE AG_ISA
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#define ISA_SEX  1
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#endif 
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#if defined(CONFIG_GG2) && !defined(MULTI_ISA)
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#define ISA_TYPE GG2_ISA
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#define ISA_SEX  0
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#endif
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#ifdef MULTI_ISA
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extern int isa_type;
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extern int isa_sex;
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#define ISA_TYPE isa_type
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#define ISA_SEX  isa_sex
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#endif
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/*
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 * define inline addr translation functions. Normally only one variant will
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 * be compiled in so the case statement will be optimised away
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 */
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static inline unsigned char *isa_itb(long addr)
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{
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  switch(ISA_TYPE)
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    {
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#ifdef CONFIG_Q40
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    case Q40_ISA: return (unsigned char *)Q40_ISA_IO_B(addr);
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#endif
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#ifdef CONFIG_GG2
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    case GG2_ISA: return (unsigned char *)GG2_ISA_IO_B(addr);
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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    case AG_ISA: return (unsigned char *)AG_ISA_IO_B(addr);
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#endif
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    default: return 0; /* avoid warnings, just in case */
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    }
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}
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static inline unsigned short *isa_itw(long addr)
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{
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  switch(ISA_TYPE)
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    {
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#ifdef CONFIG_Q40
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    case Q40_ISA: return (unsigned short *)Q40_ISA_IO_W(addr);
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#endif
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#ifdef CONFIG_GG2
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    case GG2_ISA: return (unsigned short *)GG2_ISA_IO_W(addr);
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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    case AG_ISA: return (unsigned short *)AG_ISA_IO_W(addr);
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#endif
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    default: return 0; /* avoid warnings, just in case */
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    }
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}
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static inline unsigned char *isa_mtb(long addr)
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{
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  switch(ISA_TYPE)
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    {
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#ifdef CONFIG_Q40
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    case Q40_ISA: return (unsigned char *)Q40_ISA_MEM_B(addr);
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#endif
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#ifdef CONFIG_GG2
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    case GG2_ISA: return (unsigned char *)GG2_ISA_MEM_B(addr);
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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    case AG_ISA: return (unsigned char *)addr;
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#endif
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    default: return 0; /* avoid warnings, just in case */
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    }
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}
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static inline unsigned short *isa_mtw(long addr)
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{
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  switch(ISA_TYPE)
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    {
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#ifdef CONFIG_Q40
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    case Q40_ISA: return (unsigned short *)Q40_ISA_MEM_W(addr);
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#endif
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#ifdef CONFIG_GG2
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    case GG2_ISA: return (unsigned short *)GG2_ISA_MEM_W(addr);
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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    case AG_ISA: return (unsigned short *)addr;
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#endif
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    default: return 0; /* avoid warnings, just in case */
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    }
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}
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#define isa_inb(port)      in_8(isa_itb(port))
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#define isa_inw(port)      (ISA_SEX ? in_be16(isa_itw(port)) : in_le16(isa_itw(port)))
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#define isa_outb(val,port) out_8(isa_itb(port),(val))
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#define isa_outw(val,port) (ISA_SEX ? out_be16(isa_itw(port),(val)) : out_le16(isa_itw(port),(val)))
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#define isa_readb(p)       in_8(isa_mtb(p))
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#define isa_readw(p)       (ISA_SEX ? in_be16(isa_mtw(p)) : in_le16(isa_mtw(p)))
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#define isa_writeb(val,p)  out_8(isa_mtb(p),(val))
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#define isa_writew(val,p)  (ISA_SEX ? out_be16(isa_mtw(p),(val)) : out_le16(isa_mtw(p),(val)))
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static inline void isa_delay(void)
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{
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  switch(ISA_TYPE)
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    {
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#ifdef CONFIG_Q40
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    case Q40_ISA: isa_outb(0,0x80); break;
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#endif
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#ifdef CONFIG_GG2
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    case GG2_ISA: break;
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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    case AG_ISA: break;
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#endif
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    default: break; /* avoid warnings */
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    }
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}
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#define isa_inb_p(p)      ({unsigned char v=isa_inb(p);isa_delay();v;})
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#define isa_outb_p(v,p)   ({isa_outb((v),(p));isa_delay();})
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#define isa_insb(port, buf, nr) raw_insb(isa_itb(port), (buf), (nr))
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#define isa_outsb(port, buf, nr) raw_outsb(isa_itb(port), (buf), (nr))
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#define isa_insw(port, buf, nr)     \
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       (ISA_SEX ? raw_insw(isa_itw(port), (buf), (nr)) :    \
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                  raw_insw_swapw(isa_itw(port), (buf), (nr)))
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#define isa_outsw(port, buf, nr)    \
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       (ISA_SEX ? raw_outsw(isa_itw(port), (buf), (nr)) :  \
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                  raw_outsw_swapw(isa_itw(port), (buf), (nr)))
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#endif  /* CONFIG_ISA */
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#if defined(CONFIG_ISA) && !defined(CONFIG_PCI) 
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#define inb     isa_inb
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#define inb_p   isa_inb_p
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#define outb    isa_outb
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#define outb_p  isa_outb_p
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#define inw     isa_inw
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#define outw    isa_outw
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#define inl     isa_inw
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#define outl    isa_outw
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#define insb    isa_insb
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#define insw    isa_insw
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#define outsb   isa_outsb
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#define outsw   isa_outsw
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#define readb   isa_readb
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#define readw   isa_readw
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#define writeb  isa_writeb
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#define writew  isa_writew
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#endif /* CONFIG_ISA */
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#if defined(CONFIG_PCI)
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#define inl(port)        in_le32(port)
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#define outl(val,port)   out_le32((port),(val))
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#define readl(addr)      in_le32(addr)
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#define writel(val,addr) out_le32((addr),(val))
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/* those can be defined for both ISA and PCI - it won't work though */
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#define readb(addr)       in_8(addr)
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#define readw(addr)       in_le16(addr)
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#define writeb(val,addr)  out_8((addr),(val))
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#define writew(val,addr)  out_le16((addr),(val))
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#ifndef CONFIG_ISA
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#define inb(port)      in_8(port)
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#define outb(val,port) out_8((port),(val))
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#define inw(port)      in_le16(port)
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#define outw(val,port) out_le16((port),(val))
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#else
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/*
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 * kernel with both ISA and PCI compiled in, those have
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 * conflicting defs for in/out. Simply consider port < 1024
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 * ISA and everything else PCI. read,write not defined
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 * in this case
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 */
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#define inb(port) ((port)<1024 ? isa_inb(port) : in_8(port))
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#define inb_p(port) ((port)<1024 ? isa_inb_p(port) : in_8(port))
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#define inw(port) ((port)<1024 ? isa_inw(port) : in_le16(port))
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#define outb(val,port) ((port)<1024 ? isa_outb((val),(port)) : out_8((port),(val)))
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#define outb_p(val,port) ((port)<1024 ? isa_outb_p((val),(port)) : out_8((port),(val)))
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#define outw(val,port) ((port)<1024 ? isa_outw((val),(port)) : out_le16((port),(val)))
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#endif
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#endif /* CONFIG_PCI */
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static inline void *ioremap(unsigned long physaddr, unsigned long size)
289
{
290
        return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
291
}
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static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
293
{
294
        return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
295
}
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static inline void *ioremap_writethrough(unsigned long physaddr,
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                                         unsigned long size)
298
{
299
        return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
300
}
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static inline void *ioremap_fullcache(unsigned long physaddr,
302
                                      unsigned long size)
303
{
304
        return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
305
}
306
 
307
 
308
/* m68k caches aren't DMA coherent */
309
extern void dma_cache_wback_inv(unsigned long start, unsigned long size);
310
extern void dma_cache_wback(unsigned long start, unsigned long size);
311
extern void dma_cache_inv(unsigned long start, unsigned long size);
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314
#ifndef CONFIG_SUN3
315
#define IO_SPACE_LIMIT 0xffff
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#else
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#define IO_SPACE_LIMIT 0x0fffffff
318
#endif
319
 
320
#endif /* __KERNEL__ */
321
#endif /* _IO_H */

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