1 files changed, 228 insertions, 0 deletions

diff --git a/arch/m32r/platforms/oaks32r/io.c b/arch/m32r/platforms/oaks32r/io.c
new file mode 100644
index 000000000000..364a3b2e8907
--- /dev/null
+++ b/arch/m32r/platforms/oaks32r/io.c
@@ -0,0 +1,228 @@
+/*
+ *  linux/arch/m32r/platforms/oaks32r/io.c
+ *
+ *  Typical I/O routines for OAKS32R board.
+ *
+ *  Copyright (c) 2001-2005  Hiroyuki Kondo, Hirokazu Takata,
+ *                           Hitoshi Yamamoto, Mamoru Sakugawa
+ */
+
+#include <asm/m32r.h>
+#include <asm/page.h>
+#include <asm/io.h>
+
+#define PORT2ADDR(port)  _port2addr(port)
+
+static inline void *_port2addr(unsigned long port)
+{
+        return (void *)(port | NONCACHE_OFFSET);
+}
+
+static inline  void *_port2addr_ne(unsigned long port)
+{
+        return (void *)((port<<1) + NONCACHE_OFFSET + 0x02000000);
+}
+
+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+1);
+}
+
+static inline unsigned short _ne_inw(void *portp)
+{
+        unsigned short tmp;
+
+        tmp = *(unsigned short *)(portp) & 0xff;
+        tmp |= *(unsigned short *)(portp+2) << 8;
+        return tmp;
+}
+
+static inline  void _ne_insb(void *portp, void *addr, unsigned long count)
+{
+        unsigned char *buf = addr;
+        while (count--)
+                *buf++ = *(volatile unsigned char *)(portp+1);
+}
+
+static inline void _ne_outb(unsigned char b, void *portp)
+{
+        *(volatile unsigned char *)(portp+1) = b;
+}
+
+static inline void _ne_outw(unsigned short w, void *portp)
+{
+        *(volatile unsigned short *)portp =  (w >> 8);
+        *(volatile unsigned short *)(portp+2) =  (w & 0xff);
+}
+
+unsigned char _inb(unsigned long port)
+{
+        if (port >= 0x300 && port < 0x320)
+                return _ne_inb(PORT2ADDR_NE(port));
+
+        return *(volatile unsigned char *)PORT2ADDR(port);
+}
+
+unsigned short _inw(unsigned long port)
+{
+        if (port >= 0x300 && port < 0x320)
+                return _ne_inw(PORT2ADDR_NE(port));
+
+        return *(volatile unsigned short *)PORT2ADDR(port);
+}
+
+unsigned long _inl(unsigned long port)
+{
+        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 >= 0x300 && port < 0x320)
+                _ne_outb(b, PORT2ADDR_NE(port));
+        else
+                *(volatile unsigned char *)PORT2ADDR(port) = b;
+}
+
+void _outw(unsigned short w, unsigned long port)
+{
+        if (port >= 0x300 && port < 0x320)
+                _ne_outw(w, PORT2ADDR_NE(port));
+        else
+                *(volatile unsigned short *)PORT2ADDR(port) = w;
+}
+
+void _outl(unsigned long l, unsigned long port)
+{
+        *(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 >= 0x300 && port < 0x320)
+                _ne_insb(PORT2ADDR_NE(port), addr, count);
+        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 >= 0x300 && port < 0x320) {
+                portp = PORT2ADDR_NE(port);
+                while (count--)
+                        *buf++ = _ne_inw(portp);
+        } 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 >= 0x300 && port < 0x320) {
+                portp = PORT2ADDR_NE(port);
+                while (count--)
+                        _ne_outb(*buf++, portp);
+        } 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 >= 0x300 && port < 0x320) {
+                portp = PORT2ADDR_NE(port);
+                while (count--)
+                        _ne_outw(*buf++, portp);
+        } 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++;
+}