diff options
Diffstat (limited to 'arch/sh/cchips/hd6446x/hd64461/io.c')
| -rw-r--r-- | arch/sh/cchips/hd6446x/hd64461/io.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/arch/sh/cchips/hd6446x/hd64461/io.c b/arch/sh/cchips/hd6446x/hd64461/io.c new file mode 100644 index 00000000000..4c062d6b7a9 --- /dev/null +++ b/arch/sh/cchips/hd6446x/hd64461/io.c @@ -0,0 +1,157 @@ +/* + * $Id: io.c,v 1.6 2004/03/16 00:07:50 lethal Exp $ + * Copyright (C) 2000 YAEGASHI Takeshi + * Typical I/O routines for HD64461 system. + */ + +#include <linux/config.h> +#include <asm/io.h> +#include <asm/hd64461/hd64461.h> + +#define MEM_BASE (CONFIG_HD64461_IOBASE - HD64461_STBCR) + +static __inline__ unsigned long PORT2ADDR(unsigned long port) +{ + /* 16550A: HD64461 internal */ + if (0x3f8<=port && port<=0x3ff) + return CONFIG_HD64461_IOBASE + 0x8000 + ((port-0x3f8)<<1); + if (0x2f8<=port && port<=0x2ff) + return CONFIG_HD64461_IOBASE + 0x7000 + ((port-0x2f8)<<1); + +#ifdef CONFIG_HD64461_ENABLER + /* NE2000: HD64461 PCMCIA channel 0 (I/O) */ + if (0x300<=port && port<=0x31f) + return 0xba000000 + port; + + /* ide0: HD64461 PCMCIA channel 1 (memory) */ + /* On HP690, CF in slot 1 is configured as a memory card + device. See CF+ and CompactFlash Specification for the + detail of CF's memory mapped addressing. */ + if (0x1f0<=port && port<=0x1f7) return 0xb5000000 + port; + if (port == 0x3f6) return 0xb50001fe; + if (port == 0x3f7) return 0xb50001ff; + + /* ide1 */ + if (0x170<=port && port<=0x177) return 0xba000000 + port; + if (port == 0x376) return 0xba000376; + if (port == 0x377) return 0xba000377; +#endif + + /* ??? */ + if (port < 0xf000) return 0xa0000000 + port; + /* PCMCIA channel 0, I/O (0xba000000) */ + if (port < 0x10000) return 0xba000000 + port - 0xf000; + + /* HD64461 internal devices (0xb0000000) */ + if (port < 0x20000) return CONFIG_HD64461_IOBASE + port - 0x10000; + + /* PCMCIA channel 0, I/O (0xba000000) */ + if (port < 0x30000) return 0xba000000 + port - 0x20000; + + /* PCMCIA channel 1, memory (0xb5000000) */ + if (port < 0x40000) return 0xb5000000 + port - 0x30000; + + /* Whole physical address space (0xa0000000) */ + return 0xa0000000 + (port & 0x1fffffff); +} + +static inline void delay(void) +{ + ctrl_inw(0xa0000000); +} + +unsigned char hd64461_inb(unsigned long port) +{ + return *(volatile unsigned char*)PORT2ADDR(port); +} + +unsigned char hd64461_inb_p(unsigned long port) +{ + unsigned long v = *(volatile unsigned char*)PORT2ADDR(port); + delay(); + return v; +} + +unsigned short hd64461_inw(unsigned long port) +{ + return *(volatile unsigned short*)PORT2ADDR(port); +} + +unsigned int hd64461_inl(unsigned long port) +{ + return *(volatile unsigned long*)PORT2ADDR(port); +} + +void hd64461_outb(unsigned char b, unsigned long port) +{ + *(volatile unsigned char*)PORT2ADDR(port) = b; +} + +void hd64461_outb_p(unsigned char b, unsigned long port) +{ + *(volatile unsigned char*)PORT2ADDR(port) = b; + delay(); +} + +void hd64461_outw(unsigned short b, unsigned long port) +{ + *(volatile unsigned short*)PORT2ADDR(port) = b; +} + +void hd64461_outl(unsigned int b, unsigned long port) +{ + *(volatile unsigned long*)PORT2ADDR(port) = b; +} + +void hd64461_insb(unsigned long port, void *buffer, unsigned long count) +{ + volatile unsigned char* addr=(volatile unsigned char*)PORT2ADDR(port); + unsigned char *buf=buffer; + while(count--) *buf++=*addr; +} + +void hd64461_insw(unsigned long port, void *buffer, unsigned long count) +{ + volatile unsigned short* addr=(volatile unsigned short*)PORT2ADDR(port); + unsigned short *buf=buffer; + while(count--) *buf++=*addr; +} + +void hd64461_insl(unsigned long port, void *buffer, unsigned long count) +{ + volatile unsigned long* addr=(volatile unsigned long*)PORT2ADDR(port); + unsigned long *buf=buffer; + while(count--) *buf++=*addr; +} + +void hd64461_outsb(unsigned long port, const void *buffer, unsigned long count) +{ + volatile unsigned char* addr=(volatile unsigned char*)PORT2ADDR(port); + const unsigned char *buf=buffer; + while(count--) *addr=*buf++; +} + +void hd64461_outsw(unsigned long port, const void *buffer, unsigned long count) +{ + volatile unsigned short* addr=(volatile unsigned short*)PORT2ADDR(port); + const unsigned short *buf=buffer; + while(count--) *addr=*buf++; +} + +void hd64461_outsl(unsigned long port, const void *buffer, unsigned long count) +{ + volatile unsigned long* addr=(volatile unsigned long*)PORT2ADDR(port); + const unsigned long *buf=buffer; + while(count--) *addr=*buf++; +} + +unsigned short hd64461_readw(unsigned long addr) +{ + return *(volatile unsigned short*)(MEM_BASE+addr); +} + +void hd64461_writew(unsigned short b, unsigned long addr) +{ + *(volatile unsigned short*)(MEM_BASE+addr) = b; +} + |