1 files changed, 126 insertions, 0 deletions

diff --git a/arch/sh/boards/titan/io.c b/arch/sh/boards/titan/io.c
new file mode 100644
index 00000000000..4730c1dd697
--- /dev/null
+++ b/arch/sh/boards/titan/io.c
@@ -0,0 +1,126 @@
+/*
+ *      I/O routines for Titan
+ */
+#include <linux/pci.h>
+#include <asm/machvec.h>
+#include <asm/addrspace.h>
+#include <asm/titan.h>
+#include <asm/io.h>
+
+static inline unsigned int port2adr(unsigned int port)
+{
+        maybebadio((unsigned long)port);
+        return port;
+}
+
+u8 titan_inb(unsigned long port)
+{
+        if (PXSEG(port))
+                return ctrl_inb(port);
+        else if (is_pci_ioaddr(port))
+                return ctrl_inb(pci_ioaddr(port));
+        return ctrl_inw(port2adr(port)) & 0xff;
+}
+
+u8 titan_inb_p(unsigned long port)
+{
+        u8 v;
+
+        if (PXSEG(port))
+                v = ctrl_inb(port);
+        else if (is_pci_ioaddr(port))
+                v = ctrl_inb(pci_ioaddr(port));
+        else
+                v = ctrl_inw(port2adr(port)) & 0xff;
+        ctrl_delay();
+        return v;
+}
+
+u16 titan_inw(unsigned long port)
+{
+        if (PXSEG(port))
+                return ctrl_inw(port);
+        else if (is_pci_ioaddr(port))
+                return ctrl_inw(pci_ioaddr(port));
+        else if (port >= 0x2000)
+                return ctrl_inw(port2adr(port));
+        else
+                maybebadio(port);
+        return 0;
+}
+
+u32 titan_inl(unsigned long port)
+{
+        if (PXSEG(port))
+                return ctrl_inl(port);
+        else if (is_pci_ioaddr(port))
+                return ctrl_inl(pci_ioaddr(port));
+        else if (port >= 0x2000)
+                return ctrl_inw(port2adr(port));
+        else
+                maybebadio(port);
+        return 0;
+}
+
+void titan_outb(u8 value, unsigned long port)
+{
+        if (PXSEG(port))
+                ctrl_outb(value, port);
+        else if (is_pci_ioaddr(port))
+                ctrl_outb(value, pci_ioaddr(port));
+        else
+                ctrl_outw(value, port2adr(port));
+}
+
+void titan_outb_p(u8 value, unsigned long port)
+{
+        if (PXSEG(port))
+                ctrl_outb(value, port);
+        else if (is_pci_ioaddr(port))
+                ctrl_outb(value, pci_ioaddr(port));
+        else
+                ctrl_outw(value, port2adr(port));
+        ctrl_delay();
+}
+
+void titan_outw(u16 value, unsigned long port)
+{
+        if (PXSEG(port))
+                ctrl_outw(value, port);
+        else if (is_pci_ioaddr(port))
+                ctrl_outw(value, pci_ioaddr(port));
+        else if (port >= 0x2000)
+                ctrl_outw(value, port2adr(port));
+        else
+                maybebadio(port);
+}
+
+void titan_outl(u32 value, unsigned long port)
+{
+        if (PXSEG(port))
+                ctrl_outl(value, port);
+        else if (is_pci_ioaddr(port))
+                ctrl_outl(value, pci_ioaddr(port));
+        else
+                maybebadio(port);
+}
+
+void titan_insl(unsigned long port, void *dst, unsigned long count)
+{
+        maybebadio(port);
+}
+
+void titan_outsl(unsigned long port, const void *src, unsigned long count)
+{
+        maybebadio(port);
+}
+
+void __iomem *titan_ioport_map(unsigned long port, unsigned int size)
+{
+        if (PXSEG(port) || is_pci_memaddr(port))
+                return (void __iomem *)port;
+        else if (is_pci_ioaddr(port))
+                return (void __iomem *)pci_ioaddr(port);
+
+        return (void __iomem *)port2adr(port);
+}