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 11static __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 56unsigned char hd64461_inb(unsigned long port) 57{ 58 return *(volatile unsigned char*)PORT2ADDR(port); 59} 60 61unsigned 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 68unsigned short hd64461_inw(unsigned long port) 69{ 70 return *(volatile unsigned short*)PORT2ADDR(port); 71} 72 73unsigned int hd64461_inl(unsigned long port) 74{ 75 return *(volatile unsigned long*)PORT2ADDR(port); 76} 77 78void hd64461_outb(unsigned char b, unsigned long port) 79{ 80 *(volatile unsigned char*)PORT2ADDR(port) = b; 81} 82 83void hd64461_outb_p(unsigned char b, unsigned long port) 84{ 85 *(volatile unsigned char*)PORT2ADDR(port) = b; 86 ctrl_delay(); 87} 88 89void hd64461_outw(unsigned short b, unsigned long port) 90{ 91 *(volatile unsigned short*)PORT2ADDR(port) = b; 92} 93 94void hd64461_outl(unsigned int b, unsigned long port) 95{ 96 *(volatile unsigned long*)PORT2ADDR(port) = b; 97} 98 99void 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 106void 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 113void 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 120void 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 127void 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 134void 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 141unsigned short hd64461_readw(void __iomem *addr) 142{ 143 return ctrl_inw(MEM_BASE+(unsigned long __force)addr); 144} 145 146void hd64461_writew(unsigned short b, void __iomem *addr) 147{ 148 ctrl_outw(b, MEM_BASE+(unsigned long __force)addr); 149} 150