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298 lines
7.3 KiB
298 lines
7.3 KiB
/*
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* linux/arch/m32r/kernel/io_m32104ut.c
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*
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* Typical I/O routines for M32104UT board.
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*
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* Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
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* Hitoshi Yamamoto, Mamoru Sakugawa,
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* Naoto Sugai, Hayato Fujiwara
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*/
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#include <linux/config.h>
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#include <asm/m32r.h>
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#include <asm/page.h>
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#include <asm/io.h>
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#include <asm/byteorder.h>
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
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#include <linux/types.h>
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#define M32R_PCC_IOMAP_SIZE 0x1000
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#define M32R_PCC_IOSTART0 0x1000
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#define M32R_PCC_IOEND0 (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
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extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
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extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
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extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
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extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
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#endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
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#define PORT2ADDR(port) _port2addr(port)
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static inline void *_port2addr(unsigned long port)
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{
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return (void *)(port | NONCACHE_OFFSET);
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}
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#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
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static inline void *__port2addr_ata(unsigned long port)
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{
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static int dummy_reg;
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switch (port) {
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case 0x1f0: return (void *)(0x0c002000 | NONCACHE_OFFSET);
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case 0x1f1: return (void *)(0x0c012800 | NONCACHE_OFFSET);
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case 0x1f2: return (void *)(0x0c012002 | NONCACHE_OFFSET);
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case 0x1f3: return (void *)(0x0c012802 | NONCACHE_OFFSET);
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case 0x1f4: return (void *)(0x0c012004 | NONCACHE_OFFSET);
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case 0x1f5: return (void *)(0x0c012804 | NONCACHE_OFFSET);
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case 0x1f6: return (void *)(0x0c012006 | NONCACHE_OFFSET);
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case 0x1f7: return (void *)(0x0c012806 | NONCACHE_OFFSET);
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case 0x3f6: return (void *)(0x0c01200e | NONCACHE_OFFSET);
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default: return (void *)&dummy_reg;
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}
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}
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#endif
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/*
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* M32104T-LAN is located in the extended bus space
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* from 0x01000000 to 0x01ffffff on physical address.
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* The base address of LAN controller(LAN91C111) is 0x300.
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*/
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#define LAN_IOSTART (0x300 | NONCACHE_OFFSET)
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#define LAN_IOEND (0x320 | NONCACHE_OFFSET)
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static inline void *_port2addr_ne(unsigned long port)
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{
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return (void *)(port + NONCACHE_OFFSET + 0x01000000);
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}
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static inline void delay(void)
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{
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__asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
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}
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/*
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* NIC I/O function
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*/
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#define PORT2ADDR_NE(port) _port2addr_ne(port)
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static inline unsigned char _ne_inb(void *portp)
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{
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return *(volatile unsigned char *)portp;
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}
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static inline unsigned short _ne_inw(void *portp)
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{
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return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
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}
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static inline void _ne_insb(void *portp, void *addr, unsigned long count)
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{
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unsigned char *buf = (unsigned char *)addr;
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while (count--)
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*buf++ = _ne_inb(portp);
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}
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static inline void _ne_outb(unsigned char b, void *portp)
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{
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*(volatile unsigned char *)portp = b;
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}
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static inline void _ne_outw(unsigned short w, void *portp)
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{
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*(volatile unsigned short *)portp = cpu_to_le16(w);
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}
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unsigned char _inb(unsigned long port)
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{
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if (port >= LAN_IOSTART && port < LAN_IOEND)
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return _ne_inb(PORT2ADDR_NE(port));
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return *(volatile unsigned char *)PORT2ADDR(port);
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}
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unsigned short _inw(unsigned long port)
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{
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if (port >= LAN_IOSTART && port < LAN_IOEND)
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return _ne_inw(PORT2ADDR_NE(port));
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return *(volatile unsigned short *)PORT2ADDR(port);
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}
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unsigned long _inl(unsigned long port)
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{
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return *(volatile unsigned long *)PORT2ADDR(port);
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}
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unsigned char _inb_p(unsigned long port)
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{
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unsigned char v = _inb(port);
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delay();
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return (v);
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}
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unsigned short _inw_p(unsigned long port)
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{
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unsigned short v = _inw(port);
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delay();
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return (v);
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}
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unsigned long _inl_p(unsigned long port)
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{
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unsigned long v = _inl(port);
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delay();
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return (v);
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}
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void _outb(unsigned char b, unsigned long port)
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{
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if (port >= LAN_IOSTART && port < LAN_IOEND)
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_ne_outb(b, PORT2ADDR_NE(port));
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else
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*(volatile unsigned char *)PORT2ADDR(port) = b;
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}
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void _outw(unsigned short w, unsigned long port)
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{
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if (port >= LAN_IOSTART && port < LAN_IOEND)
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_ne_outw(w, PORT2ADDR_NE(port));
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else
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*(volatile unsigned short *)PORT2ADDR(port) = w;
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}
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void _outl(unsigned long l, unsigned long port)
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{
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*(volatile unsigned long *)PORT2ADDR(port) = l;
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}
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void _outb_p(unsigned char b, unsigned long port)
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{
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_outb(b, port);
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delay();
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}
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void _outw_p(unsigned short w, unsigned long port)
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{
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_outw(w, port);
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delay();
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}
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void _outl_p(unsigned long l, unsigned long port)
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{
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_outl(l, port);
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delay();
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}
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void _insb(unsigned int port, void *addr, unsigned long count)
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{
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if (port >= LAN_IOSTART && port < LAN_IOEND)
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_ne_insb(PORT2ADDR_NE(port), addr, count);
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else {
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unsigned char *buf = addr;
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unsigned char *portp = PORT2ADDR(port);
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while (count--)
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*buf++ = *(volatile unsigned char *)portp;
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}
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}
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void _insw(unsigned int port, void *addr, unsigned long count)
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{
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unsigned short *buf = addr;
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unsigned short *portp;
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if (port >= LAN_IOSTART && port < LAN_IOEND) {
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/*
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* This portion is only used by smc91111.c to read data
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* from the DATA_REG. Do not swap the data.
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*/
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portp = PORT2ADDR_NE(port);
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while (count--)
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*buf++ = *(volatile unsigned short *)portp;
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
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} else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
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count, 1);
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#endif
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#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
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} else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
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portp = __port2addr_ata(port);
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while (count--)
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*buf++ = *(volatile unsigned short *)portp;
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#endif
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} else {
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portp = PORT2ADDR(port);
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while (count--)
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*buf++ = *(volatile unsigned short *)portp;
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}
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}
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void _insl(unsigned int port, void *addr, unsigned long count)
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{
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unsigned long *buf = addr;
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unsigned long *portp;
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portp = PORT2ADDR(port);
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while (count--)
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*buf++ = *(volatile unsigned long *)portp;
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}
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void _outsb(unsigned int port, const void *addr, unsigned long count)
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{
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const unsigned char *buf = addr;
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unsigned char *portp;
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if (port >= LAN_IOSTART && port < LAN_IOEND) {
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portp = PORT2ADDR_NE(port);
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while (count--)
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_ne_outb(*buf++, portp);
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} else {
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portp = PORT2ADDR(port);
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while (count--)
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*(volatile unsigned char *)portp = *buf++;
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}
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}
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void _outsw(unsigned int port, const void *addr, unsigned long count)
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{
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const unsigned short *buf = addr;
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unsigned short *portp;
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if (port >= LAN_IOSTART && port < LAN_IOEND) {
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/*
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* This portion is only used by smc91111.c to write data
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* into the DATA_REG. Do not swap the data.
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*/
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portp = PORT2ADDR_NE(port);
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while (count--)
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*(volatile unsigned short *)portp = *buf++;
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#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
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} else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
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portp = __port2addr_ata(port);
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while (count--)
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*(volatile unsigned short *)portp = *buf++;
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#endif
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
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} else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
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count, 1);
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#endif
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} else {
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portp = PORT2ADDR(port);
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while (count--)
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*(volatile unsigned short *)portp = *buf++;
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}
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}
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void _outsl(unsigned int port, const void *addr, unsigned long count)
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{
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const unsigned long *buf = addr;
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unsigned char *portp;
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portp = PORT2ADDR(port);
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while (count--)
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*(volatile unsigned long *)portp = *buf++;
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}
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