arch/sh/cchips/hd6446x/hd64461/io.c

   1 /*
   2  *      Copyright (C) 2000 YAEGASHI Takeshi
   3  *      Typical I/O routines for HD64461 system.
   4  */
   5
   6 #include <asm/io.h>
   7 #include <asm/hd64461.h>
   8
   9 #define MEM_BASE (CONFIG_HD64461_IOBASE - HD64461_STBCR)
  10
  11 static __inline__ unsigned long PORT2ADDR(unsigned long port)
  12 {
  13         /* 16550A: HD64461 internal */
  14         if (0x3f8<=port && port<=0x3ff)
  15                 return CONFIG_HD64461_IOBASE + 0x8000 + ((port-0x3f8)<<1);
  16         if (0x2f8<=port && port<=0x2ff)
  17                 return CONFIG_HD64461_IOBASE + 0x7000 + ((port-0x2f8)<<1);
  18
  19 #ifdef CONFIG_HD64461_ENABLER
  20         /* NE2000: HD64461 PCMCIA channel 0 (I/O) */
  21         if (0x300<=port && port<=0x31f)
  22                 return 0xba000000 + port;
  23
  24         /* ide0: HD64461 PCMCIA channel 1 (memory) */
  25         /* On HP690, CF in slot 1 is configured as a memory card
  26            device.  See CF+ and CompactFlash Specification for the
  27            detail of CF's memory mapped addressing. */
  28         if (0x1f0<=port && port<=0x1f7) return 0xb5000000 + port;
  29         if (port == 0x3f6) return 0xb50001fe;
  30         if (port == 0x3f7) return 0xb50001ff;
  31
  32         /* ide1 */
  33         if (0x170<=port && port<=0x177) return 0xba000000 + port;
  34         if (port == 0x376) return 0xba000376;
  35         if (port == 0x377) return 0xba000377;
  36 #endif
  37
  38         /* ??? */
  39         if (port < 0xf000) return 0xa0000000 + port;
  40         /* PCMCIA channel 0, I/O (0xba000000) */
  41         if (port < 0x10000) return 0xba000000 + port - 0xf000;
  42
  43         /* HD64461 internal devices (0xb0000000) */
  44         if (port < 0x20000) return CONFIG_HD64461_IOBASE + port - 0x10000;
  45
  46         /* PCMCIA channel 0, I/O (0xba000000) */
  47         if (port < 0x30000) return 0xba000000 + port - 0x20000;
  48
  49         /* PCMCIA channel 1, memory (0xb5000000) */
  50         if (port < 0x40000) return 0xb5000000 + port - 0x30000;
  51
  52         /* Whole physical address space (0xa0000000) */
  53         return 0xa0000000 + (port & 0x1fffffff);
  54 }
  55
  56 unsigned char hd64461_inb(unsigned long port)
  57 {
  58         return *(volatile unsigned char*)PORT2ADDR(port);
  59 }
  60
  61 unsigned char hd64461_inb_p(unsigned long port)
  62 {
  63         unsigned long v = *(volatile unsigned char*)PORT2ADDR(port);
  64         ctrl_delay();
  65         return v;
  66 }
  67
  68 unsigned short hd64461_inw(unsigned long port)
  69 {
  70         return *(volatile unsigned short*)PORT2ADDR(port);
  71 }
  72
  73 unsigned int hd64461_inl(unsigned long port)
  74 {
  75         return *(volatile unsigned long*)PORT2ADDR(port);
  76 }
  77
  78 void hd64461_outb(unsigned char b, unsigned long port)
  79 {
  80         *(volatile unsigned char*)PORT2ADDR(port) = b;
  81 }
  82
  83 void hd64461_outb_p(unsigned char b, unsigned long port)
  84 {
  85         *(volatile unsigned char*)PORT2ADDR(port) = b;
  86         ctrl_delay();
  87 }
  88
  89 void hd64461_outw(unsigned short b, unsigned long port)
  90 {
  91         *(volatile unsigned short*)PORT2ADDR(port) = b;
  92 }
  93
  94 void hd64461_outl(unsigned int b, unsigned long port)
  95 {
  96         *(volatile unsigned long*)PORT2ADDR(port) = b;
  97 }
  98
  99 void hd64461_insb(unsigned long port, void *buffer, unsigned long count)
 100 {
 101         volatile unsigned char* addr=(volatile unsigned char*)PORT2ADDR(port);
 102         unsigned char *buf=buffer;
 103         while(count--) *buf++=*addr;
 104 }
 105
 106 void hd64461_insw(unsigned long port, void *buffer, unsigned long count)
 107 {
 108         volatile unsigned short* addr=(volatile unsigned short*)PORT2ADDR(port);
 109         unsigned short *buf=buffer;
 110         while(count--) *buf++=*addr;
 111 }
 112
 113 void hd64461_insl(unsigned long port, void *buffer, unsigned long count)
 114 {
 115         volatile unsigned long* addr=(volatile unsigned long*)PORT2ADDR(port);
 116         unsigned long *buf=buffer;
 117         while(count--) *buf++=*addr;
 118 }
 119
 120 void hd64461_outsb(unsigned long port, const void *buffer, unsigned long count)
 121 {
 122         volatile unsigned char* addr=(volatile unsigned char*)PORT2ADDR(port);
 123         const unsigned char *buf=buffer;
 124         while(count--) *addr=*buf++;
 125 }
 126
 127 void hd64461_outsw(unsigned long port, const void *buffer, unsigned long count)
 128 {
 129         volatile unsigned short* addr=(volatile unsigned short*)PORT2ADDR(port);
 130         const unsigned short *buf=buffer;
 131         while(count--) *addr=*buf++;
 132 }
 133
 134 void hd64461_outsl(unsigned long port, const void *buffer, unsigned long count)
 135 {
 136         volatile unsigned long* addr=(volatile unsigned long*)PORT2ADDR(port);
 137         const unsigned long *buf=buffer;
 138         while(count--) *addr=*buf++;
 139 }
 140
 141 unsigned short hd64461_readw(void __iomem *addr)
 142 {
 143         return ctrl_inw(MEM_BASE+(unsigned long __force)addr);
 144 }
 145
 146 void hd64461_writew(unsigned short b, void __iomem *addr)
 147 {
 148         ctrl_outw(b, MEM_BASE+(unsigned long __force)addr);
 149 }
 150