1 files changed, 135 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-se/7751/io.c b/arch/sh/boards/mach-se/7751/io.c
new file mode 100644
index 000000000000..e8d846cec89d
--- /dev/null
+++ b/arch/sh/boards/mach-se/7751/io.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
+ * Based largely on io_se.c.
+ *
+ * I/O routine for Hitachi 7751 SolutionEngine.
+ *
+ * Initial version only to support LAN access; some
+ * placeholder code from io_se.c left in with the
+ * expectation of later SuperIO and PCMCIA access.
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <asm/se7751.h>
+#include <asm/addrspace.h>
+
+static inline volatile u16 *port2adr(unsigned int port)
+{
+	if (port >= 0x2000)
+		return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
+	maybebadio((unsigned long)port);
+	return (volatile __u16*)port;
+}
+
+/*
+ * General outline: remap really low stuff [eventually] to SuperIO,
+ * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
+ * is mapped through the PCI IO window.  Stuff with high bits (PXSEG)
+ * should be way beyond the window, and is used  w/o translation for
+ * compatibility.
+ */
+unsigned char sh7751se_inb(unsigned long port)
+{
+	if (PXSEG(port))
+		return *(volatile unsigned char *)port;
+	else if (is_pci_ioaddr(port))
+		return *(volatile unsigned char *)pci_ioaddr(port);
+	else
+		return (*port2adr(port)) & 0xff;
+}
+
+unsigned char sh7751se_inb_p(unsigned long port)
+{
+	unsigned char v;
+
+        if (PXSEG(port))
+                v = *(volatile unsigned char *)port;
+	else if (is_pci_ioaddr(port))
+                v = *(volatile unsigned char *)pci_ioaddr(port);
+	else
+		v = (*port2adr(port)) & 0xff;
+	ctrl_delay();
+	return v;
+}
+
+unsigned short sh7751se_inw(unsigned long port)
+{
+        if (PXSEG(port))
+                return *(volatile unsigned short *)port;
+	else if (is_pci_ioaddr(port))
+                return *(volatile unsigned short *)pci_ioaddr(port);
+	else if (port >= 0x2000)
+		return *port2adr(port);
+	else
+		maybebadio(port);
+	return 0;
+}
+
+unsigned int sh7751se_inl(unsigned long port)
+{
+        if (PXSEG(port))
+                return *(volatile unsigned long *)port;
+	else if (is_pci_ioaddr(port))
+                return *(volatile unsigned int *)pci_ioaddr(port);
+	else if (port >= 0x2000)
+		return *port2adr(port);
+	else
+		maybebadio(port);
+	return 0;
+}
+
+void sh7751se_outb(unsigned char value, unsigned long port)
+{
+
+        if (PXSEG(port))
+                *(volatile unsigned char *)port = value;
+	else if (is_pci_ioaddr(port))
+		*((unsigned char*)pci_ioaddr(port)) = value;
+	else
+		*(port2adr(port)) = value;
+}
+
+void sh7751se_outb_p(unsigned char value, unsigned long port)
+{
+        if (PXSEG(port))
+                *(volatile unsigned char *)port = value;
+	else if (is_pci_ioaddr(port))
+		*((unsigned char*)pci_ioaddr(port)) = value;
+	else
+		*(port2adr(port)) = value;
+	ctrl_delay();
+}
+
+void sh7751se_outw(unsigned short value, unsigned long port)
+{
+        if (PXSEG(port))
+                *(volatile unsigned short *)port = value;
+	else if (is_pci_ioaddr(port))
+		*((unsigned short *)pci_ioaddr(port)) = value;
+	else if (port >= 0x2000)
+		*port2adr(port) = value;
+	else
+		maybebadio(port);
+}
+
+void sh7751se_outl(unsigned int value, unsigned long port)
+{
+        if (PXSEG(port))
+                *(volatile unsigned long *)port = value;
+	else if (is_pci_ioaddr(port))
+		*((unsigned long*)pci_ioaddr(port)) = value;
+	else
+		maybebadio(port);
+}
+
+void sh7751se_insl(unsigned long port, void *addr, unsigned long count)
+{
+	maybebadio(port);
+}
+
+void sh7751se_outsl(unsigned long port, const void *addr, unsigned long count)
+{
+	maybebadio(port);
+}