46ea178b7a
Modify _port2addr*() routines in arch/m32r/kernel/io_*.c to use NONCACHE_OFFSET instead of hard-coding of a constant address. This modification is also required to support an M3A-ZA36 FPGA eva board in case an MMU-less synthesizable m32r core is used. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
326 lines
8.2 KiB
C
326 lines
8.2 KiB
C
/*
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* linux/arch/m32r/kernel/io_mappi.c
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*
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* Typical I/O routines for Mappi board.
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*
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* Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
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* Hitoshi Yamamoto
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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_PCC)
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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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#define M32R_PCC_IOSTART1 0x2000
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#define M32R_PCC_IOEND1 (M32R_PCC_IOSTART1 + M32R_PCC_IOMAP_SIZE - 1)
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extern void pcc_ioread(int, unsigned long, void *, size_t, size_t, int);
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extern void pcc_iowrite(int, unsigned long, void *, size_t, size_t, int);
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#endif /* CONFIG_PCMCIA && CONFIG_M32R_PCC */
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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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static inline void *_port2addr_ne(unsigned long port)
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{
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return (void *)((port<<1) + NONCACHE_OFFSET + 0x0C000000);
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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 (unsigned char) *(volatile unsigned short *)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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unsigned short tmp;
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tmp = *(volatile unsigned short *)portp;
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return le16_to_cpu(tmp);
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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 short *)portp = (unsigned short)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 >= 0x300 && port < 0x320)
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return _ne_inb(PORT2ADDR_NE(port));
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else
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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unsigned char b;
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pcc_ioread(0, port, &b, sizeof(b), 1, 0);
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return b;
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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unsigned char b;
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pcc_ioread(1, port, &b, sizeof(b), 1, 0);
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return b;
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} else
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#endif
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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 >= 0x300 && port < 0x320)
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return _ne_inw(PORT2ADDR_NE(port));
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else
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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unsigned short w;
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pcc_ioread(0, port, &w, sizeof(w), 1, 0);
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return w;
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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unsigned short w;
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pcc_ioread(1, port, &w, sizeof(w), 1, 0);
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return w;
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} else
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#endif
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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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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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unsigned long l;
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pcc_ioread(0, port, &l, sizeof(l), 1, 0);
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return l;
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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unsigned short l;
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pcc_ioread(1, port, &l, sizeof(l), 1, 0);
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return l;
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} else
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#endif
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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 >= 0x300 && port < 0x320)
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_ne_outb(b, PORT2ADDR_NE(port));
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else
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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pcc_iowrite(0, port, &b, sizeof(b), 1, 0);
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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pcc_iowrite(1, port, &b, sizeof(b), 1, 0);
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} else
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#endif
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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 >= 0x300 && port < 0x320)
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_ne_outw(w, PORT2ADDR_NE(port));
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else
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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pcc_iowrite(0, port, &w, sizeof(w), 1, 0);
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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pcc_iowrite(1, port, &w, sizeof(w), 1, 0);
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} else
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#endif
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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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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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pcc_iowrite(0, port, &l, sizeof(l), 1, 0);
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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pcc_iowrite(1, port, &l, sizeof(l), 1, 0);
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} else
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#endif
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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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unsigned short *buf = addr;
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unsigned short *portp;
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if (port >= 0x300 && port < 0x320){
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portp = PORT2ADDR_NE(port);
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while (count--)
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*buf++ = *(volatile unsigned char *)portp;
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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} else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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pcc_ioread(0, port, (void *)addr, sizeof(unsigned char),
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count, 1);
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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pcc_ioread(1, port, (void *)addr, sizeof(unsigned char),
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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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*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 >= 0x300 && port < 0x320) {
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portp = PORT2ADDR_NE(port);
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while (count--)
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*buf++ = _ne_inw(portp);
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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} else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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pcc_ioread(0, port, (void *)addr, sizeof(unsigned short),
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count, 1);
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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pcc_ioread(1, 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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*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 >= 0x300 && port < 0x320) {
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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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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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} else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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pcc_iowrite(0, port, (void *)addr, sizeof(unsigned char),
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count, 1);
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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pcc_iowrite(1, port, (void *)addr, sizeof(unsigned char),
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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 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 >= 0x300 && port < 0x320) {
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portp = PORT2ADDR_NE(port);
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while (count--)
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_ne_outw(*buf++, portp);
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#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
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} else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
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pcc_iowrite(0, port, (void *)addr, sizeof(unsigned short),
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count, 1);
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} else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
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pcc_iowrite(1, 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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