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Diffstat (limited to 'arch/sh/boards/se/73180/io.c')
| -rw-r--r-- | arch/sh/boards/se/73180/io.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/arch/sh/boards/se/73180/io.c b/arch/sh/boards/se/73180/io.c new file mode 100644 index 00000000000..73648cbe367 --- /dev/null +++ b/arch/sh/boards/se/73180/io.c @@ -0,0 +1,265 @@ +/* + * arch/sh/boards/se/73180/io.c + * + * Copyright (C) 2003 YOSHII Takashi <yoshii-takashi@hitachi-ul.co.jp> + * Based on arch/sh/boards/se/7300/io.c + * + * I/O routine for SH-Mobile3 73180 SolutionEngine. + * + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <asm/mach/se73180.h> +#include <asm/io.h> + +#define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a) + +struct iop { + unsigned long start, end; + unsigned long base; + struct iop *(*check) (struct iop * p, unsigned long port); + unsigned char (*inb) (struct iop * p, unsigned long port); + unsigned short (*inw) (struct iop * p, unsigned long port); + void (*outb) (struct iop * p, unsigned char value, unsigned long port); + void (*outw) (struct iop * p, unsigned short value, unsigned long port); +}; + +struct iop * +simple_check(struct iop *p, unsigned long port) +{ + if ((p->start <= port) && (port <= p->end)) + return p; + else + badio(check, port); +} + +struct iop * +ide_check(struct iop *p, unsigned long port) +{ + if (((0x1f0 <= port) && (port <= 0x1f7)) || (port == 0x3f7)) + return p; + return NULL; +} + +unsigned char +simple_inb(struct iop *p, unsigned long port) +{ + return *(unsigned char *) (p->base + port); +} + +unsigned short +simple_inw(struct iop *p, unsigned long port) +{ + return *(unsigned short *) (p->base + port); +} + +void +simple_outb(struct iop *p, unsigned char value, unsigned long port) +{ + *(unsigned char *) (p->base + port) = value; +} + +void +simple_outw(struct iop *p, unsigned short value, unsigned long port) +{ + *(unsigned short *) (p->base + port) = value; +} + +unsigned char +pcc_inb(struct iop *p, unsigned long port) +{ + unsigned long addr = p->base + port + 0x40000; + unsigned long v; + + if (port & 1) + addr += 0x00400000; + v = *(volatile unsigned char *) addr; + return v; +} + +void +pcc_outb(struct iop *p, unsigned char value, unsigned long port) +{ + unsigned long addr = p->base + port + 0x40000; + + if (port & 1) + addr += 0x00400000; + *(volatile unsigned char *) addr = value; +} + +unsigned char +bad_inb(struct iop *p, unsigned long port) +{ + badio(inb, port); +} + +void +bad_outb(struct iop *p, unsigned char value, unsigned long port) +{ + badio(inw, port); +} + +/* MSTLANEX01 LAN at 0xb400:0000 */ +static struct iop laniop = { + .start = 0x300, + .end = 0x30f, + .base = 0xb4000000, + .check = simple_check, + .inb = simple_inb, + .inw = simple_inw, + .outb = simple_outb, + .outw = simple_outw, +}; + +/* NE2000 pc card NIC */ +static struct iop neiop = { + .start = 0x280, + .end = 0x29f, + .base = 0xb0600000 + 0x80, /* soft 0x280 -> hard 0x300 */ + .check = simple_check, + .inb = pcc_inb, + .inw = simple_inw, + .outb = pcc_outb, + .outw = simple_outw, +}; + +/* CF in CF slot */ +static struct iop cfiop = { + .base = 0xb0600000, + .check = ide_check, + .inb = pcc_inb, + .inw = simple_inw, + .outb = pcc_outb, + .outw = simple_outw, +}; + +static __inline__ struct iop * +port2iop(unsigned long port) +{ + if (0) ; +#if defined(CONFIG_SMC91111) + else if (laniop.check(&laniop, port)) + return &laniop; +#endif +#if defined(CONFIG_NE2000) + else if (neiop.check(&neiop, port)) + return &neiop; +#endif +#if defined(CONFIG_IDE) + else if (cfiop.check(&cfiop, port)) + return &cfiop; +#endif + else + return &neiop; /* fallback */ +} + +static inline void +delay(void) +{ + ctrl_inw(0xac000000); + ctrl_inw(0xac000000); +} + +unsigned char +sh73180se_inb(unsigned long port) +{ + struct iop *p = port2iop(port); + return (p->inb) (p, port); +} + +unsigned char +sh73180se_inb_p(unsigned long port) +{ + unsigned char v = sh73180se_inb(port); + delay(); + return v; +} + +unsigned short +sh73180se_inw(unsigned long port) +{ + struct iop *p = port2iop(port); + return (p->inw) (p, port); +} + +unsigned int +sh73180se_inl(unsigned long port) +{ + badio(inl, port); +} + +void +sh73180se_outb(unsigned char value, unsigned long port) +{ + struct iop *p = port2iop(port); + (p->outb) (p, value, port); +} + +void +sh73180se_outb_p(unsigned char value, unsigned long port) +{ + sh73180se_outb(value, port); + delay(); +} + +void +sh73180se_outw(unsigned short value, unsigned long port) +{ + struct iop *p = port2iop(port); + (p->outw) (p, value, port); +} + +void +sh73180se_outl(unsigned int value, unsigned long port) +{ + badio(outl, port); +} + +void +sh73180se_insb(unsigned long port, void *addr, unsigned long count) +{ + unsigned char *a = addr; + struct iop *p = port2iop(port); + while (count--) + *a++ = (p->inb) (p, port); +} + +void +sh73180se_insw(unsigned long port, void *addr, unsigned long count) +{ + unsigned short *a = addr; + struct iop *p = port2iop(port); + while (count--) + *a++ = (p->inw) (p, port); +} + +void +sh73180se_insl(unsigned long port, void *addr, unsigned long count) +{ + badio(insl, port); +} + +void +sh73180se_outsb(unsigned long port, const void *addr, unsigned long count) +{ + unsigned char *a = (unsigned char *) addr; + struct iop *p = port2iop(port); + while (count--) + (p->outb) (p, *a++, port); +} + +void +sh73180se_outsw(unsigned long port, const void *addr, unsigned long count) +{ + unsigned short *a = (unsigned short *) addr; + struct iop *p = port2iop(port); + while (count--) + (p->outw) (p, *a++, port); +} + +void +sh73180se_outsl(unsigned long port, const void *addr, unsigned long count) +{ + badio(outsw, port); +} |