/* * linux/arch/m32r/kernel/io_m32700ut.c * * Typical I/O routines for M32700UT board. * * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata, * Hitoshi Yamamoto, Takeo Takahashi * * This file is subject to the terms and conditions of the GNU General * Public License. See the file "COPYING" in the main directory of this * archive for more details. */ #include <linux/config.h> #include <asm/m32r.h> #include <asm/page.h> #include <asm/io.h> #include <asm/byteorder.h> #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) #include <linux/types.h> #define M32R_PCC_IOMAP_SIZE 0x1000 #define M32R_PCC_IOSTART0 0x1000 #define M32R_PCC_IOEND0 (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1) extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int); extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int); extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int); extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int); #endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */ #define PORT2ADDR(port) _port2addr(port) #define PORT2ADDR_USB(port) _port2addr_usb(port) static inline void *_port2addr(unsigned long port) { return (void *)(port | NONCACHE_OFFSET); } #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC) static inline void *__port2addr_ata(unsigned long port) { static int dummy_reg; switch (port) { case 0x1f0: return (void *)(0x0c002000 | NONCACHE_OFFSET); case 0x1f1: return (void *)(0x0c012800 | NONCACHE_OFFSET); case 0x1f2: return (void *)(0x0c012002 | NONCACHE_OFFSET); case 0x1f3: return (void *)(0x0c012802 | NONCACHE_OFFSET); case 0x1f4: return (void *)(0x0c012004 | NONCACHE_OFFSET); case 0x1f5: return (void *)(0x0c012804 | NONCACHE_OFFSET); case 0x1f6: return (void *)(0x0c012006 | NONCACHE_OFFSET); case 0x1f7: return (void *)(0x0c012806 | NONCACHE_OFFSET); case 0x3f6: return (void *)(0x0c01200e | NONCACHE_OFFSET); default: return (void *)&dummy_reg; } } #endif /* * M32700UT-LAN is located in the extended bus space * from 0x10000000 to 0x13ffffff on physical address. * The base address of LAN controller(LAN91C111) is 0x300. */ #define LAN_IOSTART (0x300 | NONCACHE_OFFSET) #define LAN_IOEND (0x320 | NONCACHE_OFFSET) static inline void *_port2addr_ne(unsigned long port) { return (void *)(port + 0x10000000); } static inline void *_port2addr_usb(unsigned long port) { return (void *)((port & 0x0f) + NONCACHE_OFFSET + 0x10303000); } static inline void delay(void) { __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory"); } /* * NIC I/O function */ #define PORT2ADDR_NE(port) _port2addr_ne(port) static inline unsigned char _ne_inb(void *portp) { return *(volatile unsigned char *)portp; } static inline unsigned short _ne_inw(void *portp) { return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp); } static inline void _ne_insb(void *portp, void *addr, unsigned long count) { unsigned char *buf = (unsigned char *)addr; while (count--) *buf++ = _ne_inb(portp); } static inline void _ne_outb(unsigned char b, void *portp) { *(volatile unsigned char *)portp = b; } static inline void _ne_outw(unsigned short w, void *portp) { *(volatile unsigned short *)portp = cpu_to_le16(w); } unsigned char _inb(unsigned long port) { if (port >= LAN_IOSTART && port < LAN_IOEND) return _ne_inb(PORT2ADDR_NE(port)); #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC) else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) { return *(volatile unsigned char *)__port2addr_ata(port); } #endif #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { unsigned char b; pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0); return b; } else #endif return *(volatile unsigned char *)PORT2ADDR(port); } unsigned short _inw(unsigned long port) { if (port >= LAN_IOSTART && port < LAN_IOEND) return _ne_inw(PORT2ADDR_NE(port)); #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC) else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) { return *(volatile unsigned short *)__port2addr_ata(port); } #endif #if defined(CONFIG_USB) else if(port >= 0x340 && port < 0x3a0) return *(volatile unsigned short *)PORT2ADDR_USB(port); #endif #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { unsigned short w; pcc_ioread_word(0, port, &w, sizeof(w), 1, 0); return w; } else #endif return *(volatile unsigned short *)PORT2ADDR(port); } unsigned long _inl(unsigned long port) { #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { unsigned long l; pcc_ioread_word(0, port, &l, sizeof(l), 1, 0); return l; } else #endif return *(volatile unsigned long *)PORT2ADDR(port); } unsigned char _inb_p(unsigned long port) { unsigned char v = _inb(port); delay(); return (v); } unsigned short _inw_p(unsigned long port) { unsigned short v = _inw(port); delay(); return (v); } unsigned long _inl_p(unsigned long port) { unsigned long v = _inl(port); delay(); return (v); } void _outb(unsigned char b, unsigned long port) { if (port >= LAN_IOSTART && port < LAN_IOEND) _ne_outb(b, PORT2ADDR_NE(port)); else #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC) if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) { *(volatile unsigned char *)__port2addr_ata(port) = b; } else #endif #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0); } else #endif *(volatile unsigned char *)PORT2ADDR(port) = b; } void _outw(unsigned short w, unsigned long port) { if (port >= LAN_IOSTART && port < LAN_IOEND) _ne_outw(w, PORT2ADDR_NE(port)); else #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC) if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) { *(volatile unsigned short *)__port2addr_ata(port) = w; } else #endif #if defined(CONFIG_USB) if(port >= 0x340 && port < 0x3a0) *(volatile unsigned short *)PORT2ADDR_USB(port) = w; else #endif #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0); } else #endif *(volatile unsigned short *)PORT2ADDR(port) = w; } void _outl(unsigned long l, unsigned long port) { #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0); } else #endif *(volatile unsigned long *)PORT2ADDR(port) = l; } void _outb_p(unsigned char b, unsigned long port) { _outb(b, port); delay(); } void _outw_p(unsigned short w, unsigned long port) { _outw(w, port); delay(); } void _outl_p(unsigned long l, unsigned long port) { _outl(l, port); delay(); } void _insb(unsigned int port, void *addr, unsigned long count) { if (port >= LAN_IOSTART && port < LAN_IOEND) _ne_insb(PORT2ADDR_NE(port), addr, count); #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC) else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) { unsigned char *buf = addr; unsigned char *portp = __port2addr_ata(port); while (count--) *buf++ = *(volatile unsigned char *)portp; } #endif #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { pcc_ioread_byte(0, port, (void *)addr, sizeof(unsigned char), count, 1); } #endif else { unsigned char *buf = addr; unsigned char *portp = PORT2ADDR(port); while (count--) *buf++ = *(volatile unsigned char *)portp; } } void _insw(unsigned int port, void *addr, unsigned long count) { unsigned short *buf = addr; unsigned short *portp; if (port >= LAN_IOSTART && port < LAN_IOEND) { /* * This portion is only used by smc91111.c to read data * from the DATA_REG. Do not swap the data. */ portp = PORT2ADDR_NE(port); while (count--) *buf++ = *(volatile unsigned short *)portp; #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short), count, 1); #endif #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC) } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) { portp = __port2addr_ata(port); while (count--) *buf++ = *(volatile unsigned short *)portp; #endif } else { portp = PORT2ADDR(port); while (count--) *buf++ = *(volatile unsigned short *)portp; } } void _insl(unsigned int port, void *addr, unsigned long count) { unsigned long *buf = addr; unsigned long *portp; portp = PORT2ADDR(port); while (count--) *buf++ = *(volatile unsigned long *)portp; } void _outsb(unsigned int port, const void *addr, unsigned long count) { const unsigned char *buf = addr; unsigned char *portp; if (port >= LAN_IOSTART && port < LAN_IOEND) { portp = PORT2ADDR_NE(port); while (count--) _ne_outb(*buf++, portp); #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC) } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) { portp = __port2addr_ata(port); while (count--) *(volatile unsigned char *)portp = *buf++; #endif #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char), count, 1); #endif } else { portp = PORT2ADDR(port); while (count--) *(volatile unsigned char *)portp = *buf++; } } void _outsw(unsigned int port, const void *addr, unsigned long count) { const unsigned short *buf = addr; unsigned short *portp; if (port >= LAN_IOSTART && port < LAN_IOEND) { /* * This portion is only used by smc91111.c to write data * into the DATA_REG. Do not swap the data. */ portp = PORT2ADDR_NE(port); while (count--) *(volatile unsigned short *)portp = *buf++; #if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC) } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) { portp = __port2addr_ata(port); while (count--) *(volatile unsigned short *)portp = *buf++; #endif #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC) } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) { pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short), count, 1); #endif } else { portp = PORT2ADDR(port); while (count--) *(volatile unsigned short *)portp = *buf++; } } void _outsl(unsigned int port, const void *addr, unsigned long count) { const unsigned long *buf = addr; unsigned char *portp; portp = PORT2ADDR(port); while (count--) *(volatile unsigned long *)portp = *buf++; }