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Diffstat (limited to 'arch/m32r/platforms/mappi/io.c')
-rw-r--r--arch/m32r/platforms/mappi/io.c325
1 files changed, 325 insertions, 0 deletions
diff --git a/arch/m32r/platforms/mappi/io.c b/arch/m32r/platforms/mappi/io.c
new file mode 100644
index 000000000000..ac1c396d477d
--- /dev/null
+++ b/arch/m32r/platforms/mappi/io.c
@@ -0,0 +1,325 @@
+/*
+ * linux/arch/m32r/platforms/mappi/io.c
+ *
+ * Typical I/O routines for Mappi board.
+ *
+ * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
+ * Hitoshi Yamamoto
+ */
+
+#include <asm/m32r.h>
+#include <asm/page.h>
+#include <asm/io.h>
+#include <asm/byteorder.h>
+
+#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
+#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)
+#define M32R_PCC_IOSTART1 0x2000
+#define M32R_PCC_IOEND1 (M32R_PCC_IOSTART1 + M32R_PCC_IOMAP_SIZE - 1)
+
+extern void pcc_ioread(int, unsigned long, void *, size_t, size_t, int);
+extern void pcc_iowrite(int, unsigned long, void *, size_t, size_t, int);
+#endif /* CONFIG_PCMCIA && CONFIG_M32R_PCC */
+
+#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 + 0x0C000000);
+}
+
+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 (unsigned char) *(volatile unsigned short *)portp;
+}
+
+static inline unsigned short _ne_inw(void *portp)
+{
+ unsigned short tmp;
+
+ tmp = *(volatile unsigned short *)portp;
+ return le16_to_cpu(tmp);
+}
+
+static inline void _ne_outb(unsigned char b, void *portp)
+{
+ *(volatile unsigned short *)portp = (unsigned short)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 >= 0x300 && port < 0x320)
+ return _ne_inb(PORT2ADDR_NE(port));
+ else
+#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
+ if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ unsigned char b;
+ pcc_ioread(0, port, &b, sizeof(b), 1, 0);
+ return b;
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ unsigned char b;
+ pcc_ioread(1, port, &b, sizeof(b), 1, 0);
+ return b;
+ } else
+#endif
+
+ return *(volatile unsigned char *)PORT2ADDR(port);
+}
+
+unsigned short _inw(unsigned long port)
+{
+ if (port >= 0x300 && port < 0x320)
+ return _ne_inw(PORT2ADDR_NE(port));
+ else
+#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
+ if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ unsigned short w;
+ pcc_ioread(0, port, &w, sizeof(w), 1, 0);
+ return w;
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ unsigned short w;
+ pcc_ioread(1, 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_PCC)
+ if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ unsigned long l;
+ pcc_ioread(0, port, &l, sizeof(l), 1, 0);
+ return l;
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ unsigned short l;
+ pcc_ioread(1, 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 >= 0x300 && port < 0x320)
+ _ne_outb(b, PORT2ADDR_NE(port));
+ else
+#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
+ if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ pcc_iowrite(0, port, &b, sizeof(b), 1, 0);
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ pcc_iowrite(1, port, &b, sizeof(b), 1, 0);
+ } else
+#endif
+ *(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
+#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
+ if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ pcc_iowrite(0, port, &w, sizeof(w), 1, 0);
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ pcc_iowrite(1, 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_PCC)
+ if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ pcc_iowrite(0, port, &l, sizeof(l), 1, 0);
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ pcc_iowrite(1, 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)
+{
+ unsigned short *buf = addr;
+ unsigned short *portp;
+
+ if (port >= 0x300 && port < 0x320){
+ portp = PORT2ADDR_NE(port);
+ while (count--)
+ *buf++ = *(volatile unsigned char *)portp;
+#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
+ } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ pcc_ioread(0, port, (void *)addr, sizeof(unsigned char),
+ count, 1);
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ pcc_ioread(1, port, (void *)addr, sizeof(unsigned char),
+ count, 1);
+#endif
+ } else {
+ 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);
+#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
+ } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ pcc_ioread(0, port, (void *)addr, sizeof(unsigned short),
+ count, 1);
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ pcc_ioread(1, port, (void *)addr, sizeof(unsigned short),
+ count, 1);
+#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 >= 0x300 && port < 0x320) {
+ portp = PORT2ADDR_NE(port);
+ while (count--)
+ _ne_outb(*buf++, portp);
+#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
+ } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ pcc_iowrite(0, port, (void *)addr, sizeof(unsigned char),
+ count, 1);
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ pcc_iowrite(1, 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 >= 0x300 && port < 0x320) {
+ portp = PORT2ADDR_NE(port);
+ while (count--)
+ _ne_outw(*buf++, portp);
+#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
+ } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
+ pcc_iowrite(0, port, (void *)addr, sizeof(unsigned short),
+ count, 1);
+ } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
+ pcc_iowrite(1, 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++;
+}
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