diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5c075f5..32cd5f1 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -161,7 +161,8 @@
 	def_bool y
 
 config NO_IOPORT
-	bool
+	def_bool !PCI
+	depends on !SH_CAYMAN && !SH_SH4202_MICRODEV
 
 config IO_TRAPPED
 	bool
diff --git a/arch/sh/boards/board-secureedge5410.c b/arch/sh/boards/board-secureedge5410.c
index 32f875e..f968f17 100644
--- a/arch/sh/boards/board-secureedge5410.c
+++ b/arch/sh/boards/board-secureedge5410.c
@@ -29,8 +29,6 @@
  */
 static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id)
 {
-	ctrl_delay();	/* dummy read */
-
 	printk("SnapGear: erase switch interrupt!\n");
 
 	return IRQ_HANDLED;
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index 60ee09a..a09c77d 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -382,14 +382,13 @@
 	struct pci_channel *chan = dev->sysdata;
 
 	if (unlikely(!chan->io_map_base)) {
-		chan->io_map_base = generic_io_base;
+		chan->io_map_base = sh_io_port_base;
 
 		if (pci_domains_supported)
 			panic("To avoid data corruption io_map_base MUST be "
 			      "set with multiple PCI domains.");
 	}
 
-
 	return (void __iomem *)(chan->io_map_base + port);
 }
 
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index b237d52..89ab2c5 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -1,5 +1,6 @@
 #ifndef __ASM_SH_IO_H
 #define __ASM_SH_IO_H
+
 /*
  * Convention:
  *    read{b,w,l,q}/write{b,w,l,q} are for PCI,
@@ -15,12 +16,6 @@
  * SuperH specific I/O (raw I/O to on-chip CPU peripherals). In practice
  * these have the same semantics as the __raw variants, and as such, all
  * new code should be using the __raw versions.
- *
- * All ISA I/O routines are wrapped through the machine vector. If a
- * board does not provide overrides, a generic set that are copied in
- * from the default machine vector are used instead. These are largely
- * for old compat code for I/O offseting to SuperIOs, all of which are
- * better handled through the machvec ioport mapping routines these days.
  */
 #include <linux/errno.h>
 #include <asm/cache.h>
@@ -31,39 +26,10 @@
 #include <asm-generic/iomap.h>
 
 #ifdef __KERNEL__
-/*
- * Depending on which platform we are running on, we need different
- * I/O functions.
- */
-#define __IO_PREFIX	generic
+#define __IO_PREFIX     generic
 #include <asm/io_generic.h>
 #include <asm/io_trapped.h>
 
-#ifdef CONFIG_HAS_IOPORT
-
-#define inb(p)			sh_mv.mv_inb((p))
-#define inw(p)			sh_mv.mv_inw((p))
-#define inl(p)			sh_mv.mv_inl((p))
-#define outb(x,p)		sh_mv.mv_outb((x),(p))
-#define outw(x,p)		sh_mv.mv_outw((x),(p))
-#define outl(x,p)		sh_mv.mv_outl((x),(p))
-
-#define inb_p(p)		sh_mv.mv_inb_p((p))
-#define inw_p(p)		sh_mv.mv_inw_p((p))
-#define inl_p(p)		sh_mv.mv_inl_p((p))
-#define outb_p(x,p)		sh_mv.mv_outb_p((x),(p))
-#define outw_p(x,p)		sh_mv.mv_outw_p((x),(p))
-#define outl_p(x,p)		sh_mv.mv_outl_p((x),(p))
-
-#define insb(p,b,c)		sh_mv.mv_insb((p), (b), (c))
-#define insw(p,b,c)		sh_mv.mv_insw((p), (b), (c))
-#define insl(p,b,c)		sh_mv.mv_insl((p), (b), (c))
-#define outsb(p,b,c)		sh_mv.mv_outsb((p), (b), (c))
-#define outsw(p,b,c)		sh_mv.mv_outsw((p), (b), (c))
-#define outsl(p,b,c)		sh_mv.mv_outsl((p), (b), (c))
-
-#endif
-
 #define __raw_writeb(v,a)	(__chk_io_ptr(a), *(volatile u8  __force *)(a) = (v))
 #define __raw_writew(v,a)	(__chk_io_ptr(a), *(volatile u16 __force *)(a) = (v))
 #define __raw_writel(v,a)	(__chk_io_ptr(a), *(volatile u32 __force *)(a) = (v))
@@ -74,15 +40,196 @@
 #define __raw_readl(a)		(__chk_io_ptr(a), *(volatile u32 __force *)(a))
 #define __raw_readq(a)		(__chk_io_ptr(a), *(volatile u64 __force *)(a))
 
-#define readb(a)		({ u8  r_ = __raw_readb(a); mb(); r_; })
-#define readw(a)		({ u16 r_ = __raw_readw(a); mb(); r_; })
-#define readl(a)		({ u32 r_ = __raw_readl(a); mb(); r_; })
-#define readq(a)		({ u64 r_ = __raw_readq(a); mb(); r_; })
+#define readb_relaxed(c)	({ u8  __v = __raw_readb(c); __v; })
+#define readw_relaxed(c)	({ u16 __v = le16_to_cpu((__force __le16) \
+					__raw_readw(c)); __v; })
+#define readl_relaxed(c)	({ u32 __v = le32_to_cpu((__force __le32) \
+					__raw_readl(c)); __v; })
+#define readq_relaxed(c)	({ u64 __v = le64_to_cpu((__force __le64) \
+					__raw_readq(c)); __v; })
 
-#define writeb(v,a)		({ __raw_writeb((v),(a)); mb(); })
-#define writew(v,a)		({ __raw_writew((v),(a)); mb(); })
-#define writel(v,a)		({ __raw_writel((v),(a)); mb(); })
-#define writeq(v,a)		({ __raw_writeq((v),(a)); mb(); })
+#define writeb_relaxed(v,c)	((void)__raw_writeb(v,c))
+#define writew_relaxed(v,c)	((void)__raw_writew((__force u16) \
+					cpu_to_le16(v),c))
+#define writel_relaxed(v,c)	((void)__raw_writel((__force u32) \
+					cpu_to_le32(v),c))
+#define writeq_relaxed(v,c)	((void)__raw_writeq((__force u64) \
+					cpu_to_le64(v),c))
+
+#define readb(a)		({ u8  r_ = readb_relaxed(a); rmb(); r_; })
+#define readw(a)		({ u16 r_ = readw_relaxed(a); rmb(); r_; })
+#define readl(a)		({ u32 r_ = readl_relaxed(a); rmb(); r_; })
+#define readq(a)		({ u64 r_ = readq_relaxed(a); rmb(); r_; })
+
+#define writeb(v,a)		({ wmb(); writeb_relaxed((v),(a)); })
+#define writew(v,a)		({ wmb(); writew_relaxed((v),(a)); })
+#define writel(v,a)		({ wmb(); writel_relaxed((v),(a)); })
+#define writeq(v,a)		({ wmb(); writeq_relaxed((v),(a)); })
+
+#define readsb(p,d,l)		__raw_readsb(p,d,l)
+#define readsw(p,d,l)		__raw_readsw(p,d,l)
+#define readsl(p,d,l)		__raw_readsl(p,d,l)
+
+#define writesb(p,d,l)		__raw_writesb(p,d,l)
+#define writesw(p,d,l)		__raw_writesw(p,d,l)
+#define writesl(p,d,l)		__raw_writesl(p,d,l)
+
+#define __BUILD_UNCACHED_IO(bwlq, type)					\
+static inline type read##bwlq##_uncached(unsigned long addr)		\
+{									\
+	type ret;							\
+	jump_to_uncached();						\
+	ret = __raw_read##bwlq(addr);					\
+	back_to_cached();						\
+	return ret;							\
+}									\
+									\
+static inline void write##bwlq##_uncached(type v, unsigned long addr)	\
+{									\
+	jump_to_uncached();						\
+	__raw_write##bwlq(v, addr);					\
+	back_to_cached();						\
+}
+
+__BUILD_UNCACHED_IO(b, u8)
+__BUILD_UNCACHED_IO(w, u16)
+__BUILD_UNCACHED_IO(l, u32)
+__BUILD_UNCACHED_IO(q, u64)
+
+#define __BUILD_MEMORY_STRING(pfx, bwlq, type)				\
+									\
+static inline void							\
+pfx##writes##bwlq(volatile void __iomem *mem, const void *addr,		\
+		  unsigned int count)					\
+{									\
+	const volatile type *__addr = addr;				\
+									\
+	while (count--) {						\
+		__raw_write##bwlq(*__addr, mem);			\
+		__addr++;						\
+	}								\
+}									\
+									\
+static inline void pfx##reads##bwlq(volatile void __iomem *mem,		\
+				    void *addr, unsigned int count)	\
+{									\
+	volatile type *__addr = addr;					\
+									\
+	while (count--) {						\
+		*__addr = __raw_read##bwlq(mem);			\
+		__addr++;						\
+	}								\
+}
+
+__BUILD_MEMORY_STRING(__raw_, b, u8)
+__BUILD_MEMORY_STRING(__raw_, w, u16)
+
+#ifdef CONFIG_SUPERH32
+void __raw_writesl(void __iomem *addr, const void *data, int longlen);
+void __raw_readsl(const void __iomem *addr, void *data, int longlen);
+#else
+__BUILD_MEMORY_STRING(__raw_, l, u32)
+#endif
+
+__BUILD_MEMORY_STRING(__raw_, q, u64)
+
+#ifdef CONFIG_HAS_IOPORT
+
+/*
+ * Slowdown I/O port space accesses for antique hardware.
+ */
+#undef CONF_SLOWDOWN_IO
+
+/*
+ * On SuperH I/O ports are memory mapped, so we access them using normal
+ * load/store instructions. sh_io_port_base is the virtual address to
+ * which all ports are being mapped.
+ */
+extern const unsigned long sh_io_port_base;
+
+static inline void __set_io_port_base(unsigned long pbase)
+{
+	*(unsigned long *)&sh_io_port_base = pbase;
+	barrier();
+}
+
+#ifdef CONFIG_GENERIC_IOMAP
+#define __ioport_map ioport_map
+#else
+extern void __iomem *__ioport_map(unsigned long addr, unsigned int size);
+#endif
+
+#ifdef CONF_SLOWDOWN_IO
+#define SLOW_DOWN_IO __raw_readw(sh_io_port_base)
+#else
+#define SLOW_DOWN_IO
+#endif
+
+#define __BUILD_IOPORT_SINGLE(pfx, bwlq, type, p, slow)			\
+									\
+static inline void pfx##out##bwlq##p(type val, unsigned long port)	\
+{									\
+	volatile type *__addr;						\
+									\
+	__addr = __ioport_map(port, sizeof(type));			\
+	*__addr = val;							\
+	slow;								\
+}									\
+									\
+static inline type pfx##in##bwlq##p(unsigned long port)			\
+{									\
+	volatile type *__addr;						\
+	type __val;							\
+									\
+	__addr = __ioport_map(port, sizeof(type));			\
+	__val = *__addr;						\
+	slow;								\
+									\
+	return __val;							\
+}
+
+#define __BUILD_IOPORT_PFX(bus, bwlq, type)				\
+	__BUILD_IOPORT_SINGLE(bus, bwlq, type, ,)			\
+	__BUILD_IOPORT_SINGLE(bus, bwlq, type, _p, SLOW_DOWN_IO)
+
+#define BUILDIO_IOPORT(bwlq, type)					\
+	__BUILD_IOPORT_PFX(, bwlq, type)
+
+BUILDIO_IOPORT(b, u8)
+BUILDIO_IOPORT(w, u16)
+BUILDIO_IOPORT(l, u32)
+BUILDIO_IOPORT(q, u64)
+
+#define __BUILD_IOPORT_STRING(bwlq, type)				\
+									\
+static inline void outs##bwlq(unsigned long port, const void *addr,	\
+			      unsigned int count)			\
+{									\
+	const volatile type *__addr = addr;				\
+									\
+	while (count--) {						\
+		out##bwlq(*__addr, port);				\
+		__addr++;						\
+	}								\
+}									\
+									\
+static inline void ins##bwlq(unsigned long port, void *addr,		\
+			     unsigned int count)			\
+{									\
+	volatile type *__addr = addr;					\
+									\
+	while (count--) {						\
+		*__addr = in##bwlq(port);				\
+		__addr++;						\
+	}								\
+}
+
+__BUILD_IOPORT_STRING(b, u8)
+__BUILD_IOPORT_STRING(w, u16)
+__BUILD_IOPORT_STRING(l, u32)
+__BUILD_IOPORT_STRING(q, u64)
+
+#endif
 
 /*
  * Legacy SuperH on-chip I/O functions
@@ -130,139 +277,11 @@
 	__raw_writeq(v, addr);
 }
 
-extern unsigned long generic_io_base;
-
-static inline void ctrl_delay(void)
-{
-	__raw_readw(generic_io_base);
-}
-
-#define __BUILD_UNCACHED_IO(bwlq, type)					\
-static inline type read##bwlq##_uncached(unsigned long addr)		\
-{									\
-	type ret;							\
-	jump_to_uncached();						\
-	ret = __raw_read##bwlq(addr);					\
-	back_to_cached();						\
-	return ret;							\
-}									\
-									\
-static inline void write##bwlq##_uncached(type v, unsigned long addr)	\
-{									\
-	jump_to_uncached();						\
-	__raw_write##bwlq(v, addr);					\
-	back_to_cached();						\
-}
-
-__BUILD_UNCACHED_IO(b, u8)
-__BUILD_UNCACHED_IO(w, u16)
-__BUILD_UNCACHED_IO(l, u32)
-__BUILD_UNCACHED_IO(q, u64)
-
-#define __BUILD_MEMORY_STRING(bwlq, type)				\
-									\
-static inline void __raw_writes##bwlq(volatile void __iomem *mem,	\
-				const void *addr, unsigned int count)	\
-{									\
-	const volatile type *__addr = addr;				\
-									\
-	while (count--) {						\
-		__raw_write##bwlq(*__addr, mem);			\
-		__addr++;						\
-	}								\
-}									\
-									\
-static inline void __raw_reads##bwlq(volatile void __iomem *mem,	\
-			       void *addr, unsigned int count)		\
-{									\
-	volatile type *__addr = addr;					\
-									\
-	while (count--) {						\
-		*__addr = __raw_read##bwlq(mem);			\
-		__addr++;						\
-	}								\
-}
-
-__BUILD_MEMORY_STRING(b, u8)
-__BUILD_MEMORY_STRING(w, u16)
-
-#ifdef CONFIG_SUPERH32
-void __raw_writesl(void __iomem *addr, const void *data, int longlen);
-void __raw_readsl(const void __iomem *addr, void *data, int longlen);
-#else
-__BUILD_MEMORY_STRING(l, u32)
-#endif
-
-__BUILD_MEMORY_STRING(q, u64)
-
-#define writesb			__raw_writesb
-#define writesw			__raw_writesw
-#define writesl			__raw_writesl
-
-#define readsb			__raw_readsb
-#define readsw			__raw_readsw
-#define readsl			__raw_readsl
-
-#define readb_relaxed(a)	readb(a)
-#define readw_relaxed(a)	readw(a)
-#define readl_relaxed(a)	readl(a)
-#define readq_relaxed(a)	readq(a)
-
-#ifndef CONFIG_GENERIC_IOMAP
-/* Simple MMIO */
-#define ioread8(a)		__raw_readb(a)
-#define ioread16(a)		__raw_readw(a)
-#define ioread16be(a)		be16_to_cpu(__raw_readw((a)))
-#define ioread32(a)		__raw_readl(a)
-#define ioread32be(a)		be32_to_cpu(__raw_readl((a)))
-
-#define iowrite8(v,a)		__raw_writeb((v),(a))
-#define iowrite16(v,a)		__raw_writew((v),(a))
-#define iowrite16be(v,a)	__raw_writew(cpu_to_be16((v)),(a))
-#define iowrite32(v,a)		__raw_writel((v),(a))
-#define iowrite32be(v,a)	__raw_writel(cpu_to_be32((v)),(a))
-
-#define ioread8_rep(a, d, c)	__raw_readsb((a), (d), (c))
-#define ioread16_rep(a, d, c)	__raw_readsw((a), (d), (c))
-#define ioread32_rep(a, d, c)	__raw_readsl((a), (d), (c))
-
-#define iowrite8_rep(a, s, c)	__raw_writesb((a), (s), (c))
-#define iowrite16_rep(a, s, c)	__raw_writesw((a), (s), (c))
-#define iowrite32_rep(a, s, c)	__raw_writesl((a), (s), (c))
-#endif
-
-#define mmio_insb(p,d,c)	__raw_readsb(p,d,c)
-#define mmio_insw(p,d,c)	__raw_readsw(p,d,c)
-#define mmio_insl(p,d,c)	__raw_readsl(p,d,c)
-
-#define mmio_outsb(p,s,c)	__raw_writesb(p,s,c)
-#define mmio_outsw(p,s,c)	__raw_writesw(p,s,c)
-#define mmio_outsl(p,s,c)	__raw_writesl(p,s,c)
+#define IO_SPACE_LIMIT 0xffffffff
 
 /* synco on SH-4A, otherwise a nop */
 #define mmiowb()		wmb()
 
-#define IO_SPACE_LIMIT 0xffffffff
-
-#ifdef CONFIG_HAS_IOPORT
-
-/*
- * This function provides a method for the generic case where a
- * board-specific ioport_map simply needs to return the port + some
- * arbitrary port base.
- *
- * We use this at board setup time to implicitly set the port base, and
- * as a result, we can use the generic ioport_map.
- */
-static inline void __set_io_port_base(unsigned long pbase)
-{
-	generic_io_base = pbase;
-}
-
-#define __ioport_map(p, n) sh_mv.mv_ioport_map((p), (n))
-
-#endif
-
 /* We really want to try and get these to memcpy etc */
 void memcpy_fromio(void *, const volatile void __iomem *, unsigned long);
 void memcpy_toio(volatile void __iomem *, const void *, unsigned long);
@@ -395,10 +414,6 @@
 #define ioremap_nocache	ioremap
 #define iounmap		__iounmap
 
-#define maybebadio(port) \
-	printk(KERN_ERR "bad PC-like io %s:%u for port 0x%lx at 0x%08x\n", \
-	       __func__, __LINE__, (port), (u32)__builtin_return_address(0))
-
 /*
  * Convert a physical pointer to a virtual kernel pointer for /dev/mem
  * access
diff --git a/arch/sh/include/asm/io_generic.h b/arch/sh/include/asm/io_generic.h
index 491df93..b5f6956 100644
--- a/arch/sh/include/asm/io_generic.h
+++ b/arch/sh/include/asm/io_generic.h
@@ -11,31 +11,6 @@
 #error "Don't include this header without a valid system prefix"
 #endif
 
-u8 IO_CONCAT(__IO_PREFIX,inb)(unsigned long);
-u16 IO_CONCAT(__IO_PREFIX,inw)(unsigned long);
-u32 IO_CONCAT(__IO_PREFIX,inl)(unsigned long);
-
-void IO_CONCAT(__IO_PREFIX,outb)(u8, unsigned long);
-void IO_CONCAT(__IO_PREFIX,outw)(u16, unsigned long);
-void IO_CONCAT(__IO_PREFIX,outl)(u32, unsigned long);
-
-u8 IO_CONCAT(__IO_PREFIX,inb_p)(unsigned long);
-u16 IO_CONCAT(__IO_PREFIX,inw_p)(unsigned long);
-u32 IO_CONCAT(__IO_PREFIX,inl_p)(unsigned long);
-void IO_CONCAT(__IO_PREFIX,outb_p)(u8, unsigned long);
-void IO_CONCAT(__IO_PREFIX,outw_p)(u16, unsigned long);
-void IO_CONCAT(__IO_PREFIX,outl_p)(u32, unsigned long);
-
-void IO_CONCAT(__IO_PREFIX,insb)(unsigned long, void *dst, unsigned long count);
-void IO_CONCAT(__IO_PREFIX,insw)(unsigned long, void *dst, unsigned long count);
-void IO_CONCAT(__IO_PREFIX,insl)(unsigned long, void *dst, unsigned long count);
-void IO_CONCAT(__IO_PREFIX,outsb)(unsigned long, const void *src, unsigned long count);
-void IO_CONCAT(__IO_PREFIX,outsw)(unsigned long, const void *src, unsigned long count);
-void IO_CONCAT(__IO_PREFIX,outsl)(unsigned long, const void *src, unsigned long count);
-
-void *IO_CONCAT(__IO_PREFIX,ioremap)(unsigned long offset, unsigned long size);
-void IO_CONCAT(__IO_PREFIX,iounmap)(void *addr);
-
 void __iomem *IO_CONCAT(__IO_PREFIX,ioport_map)(unsigned long addr, unsigned int size);
 void IO_CONCAT(__IO_PREFIX,ioport_unmap)(void __iomem *addr);
 void IO_CONCAT(__IO_PREFIX,mem_init)(void);
diff --git a/arch/sh/include/asm/machvec.h b/arch/sh/include/asm/machvec.h
index a0b0cf7..dd5d6e5 100644
--- a/arch/sh/include/asm/machvec.h
+++ b/arch/sh/include/asm/machvec.h
@@ -23,27 +23,6 @@
 	void (*mv_init_irq)(void);
 
 #ifdef CONFIG_HAS_IOPORT
-	u8 (*mv_inb)(unsigned long);
-	u16 (*mv_inw)(unsigned long);
-	u32 (*mv_inl)(unsigned long);
-	void (*mv_outb)(u8, unsigned long);
-	void (*mv_outw)(u16, unsigned long);
-	void (*mv_outl)(u32, unsigned long);
-
-	u8 (*mv_inb_p)(unsigned long);
-	u16 (*mv_inw_p)(unsigned long);
-	u32 (*mv_inl_p)(unsigned long);
-	void (*mv_outb_p)(u8, unsigned long);
-	void (*mv_outw_p)(u16, unsigned long);
-	void (*mv_outl_p)(u32, unsigned long);
-
-	void (*mv_insb)(unsigned long, void *dst, unsigned long count);
-	void (*mv_insw)(unsigned long, void *dst, unsigned long count);
-	void (*mv_insl)(unsigned long, void *dst, unsigned long count);
-	void (*mv_outsb)(unsigned long, const void *src, unsigned long count);
-	void (*mv_outsw)(unsigned long, const void *src, unsigned long count);
-	void (*mv_outsl)(unsigned long, const void *src, unsigned long count);
-
 	void __iomem *(*mv_ioport_map)(unsigned long port, unsigned int size);
 	void (*mv_ioport_unmap)(void __iomem *);
 #endif
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index 8eed6a48..ff80227 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -20,6 +20,11 @@
 	   syscalls_$(BITS).o time.o topology.o traps.o			\
 	   traps_$(BITS).o unwinder.o
 
+ifndef CONFIG_GENERIC_IOMAP
+obj-y				+= iomap.o
+obj-$(CONFIG_HAS_IOPORT)	+= ioport.o
+endif
+
 obj-y				+= cpu/
 obj-$(CONFIG_VSYSCALL)		+= vsyscall/
 obj-$(CONFIG_SMP)		+= smp.o
@@ -39,7 +44,6 @@
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)	+= dwarf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_callchain.o
-obj-$(CONFIG_HAS_IOPORT)	+= io_generic.o
 
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)		+= hw_breakpoint.o
 obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)	+= localtimer.o
diff --git a/arch/sh/kernel/io_generic.c b/arch/sh/kernel/io_generic.c
deleted file mode 100644
index 447d78f..0000000
--- a/arch/sh/kernel/io_generic.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * arch/sh/kernel/io_generic.c
- *
- * Copyright (C) 2000  Niibe Yutaka
- * Copyright (C) 2005 - 2007 Paul Mundt
- *
- * Generic I/O routine. These can be used where a machine specific version
- * is not required.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/module.h>
-#include <linux/io.h>
-#include <asm/machvec.h>
-
-#ifdef CONFIG_CPU_SH3
-/* SH3 has a PCMCIA bug that needs a dummy read from area 6 for a
- * workaround. */
-/* I'm not sure SH7709 has this kind of bug */
-#define dummy_read()	__raw_readb(0xba000000)
-#else
-#define dummy_read()
-#endif
-
-unsigned long generic_io_base = 0;
-
-u8 generic_inb(unsigned long port)
-{
-	return __raw_readb(__ioport_map(port, 1));
-}
-
-u16 generic_inw(unsigned long port)
-{
-	return __raw_readw(__ioport_map(port, 2));
-}
-
-u32 generic_inl(unsigned long port)
-{
-	return __raw_readl(__ioport_map(port, 4));
-}
-
-u8 generic_inb_p(unsigned long port)
-{
-	unsigned long v = generic_inb(port);
-
-	ctrl_delay();
-	return v;
-}
-
-u16 generic_inw_p(unsigned long port)
-{
-	unsigned long v = generic_inw(port);
-
-	ctrl_delay();
-	return v;
-}
-
-u32 generic_inl_p(unsigned long port)
-{
-	unsigned long v = generic_inl(port);
-
-	ctrl_delay();
-	return v;
-}
-
-/*
- * insb/w/l all read a series of bytes/words/longs from a fixed port
- * address. However as the port address doesn't change we only need to
- * convert the port address to real address once.
- */
-
-void generic_insb(unsigned long port, void *dst, unsigned long count)
-{
-	__raw_readsb(__ioport_map(port, 1), dst, count);
-	dummy_read();
-}
-
-void generic_insw(unsigned long port, void *dst, unsigned long count)
-{
-	__raw_readsw(__ioport_map(port, 2), dst, count);
-	dummy_read();
-}
-
-void generic_insl(unsigned long port, void *dst, unsigned long count)
-{
-	__raw_readsl(__ioport_map(port, 4), dst, count);
-	dummy_read();
-}
-
-void generic_outb(u8 b, unsigned long port)
-{
-	__raw_writeb(b, __ioport_map(port, 1));
-}
-
-void generic_outw(u16 b, unsigned long port)
-{
-	__raw_writew(b, __ioport_map(port, 2));
-}
-
-void generic_outl(u32 b, unsigned long port)
-{
-	__raw_writel(b, __ioport_map(port, 4));
-}
-
-void generic_outb_p(u8 b, unsigned long port)
-{
-	generic_outb(b, port);
-	ctrl_delay();
-}
-
-void generic_outw_p(u16 b, unsigned long port)
-{
-	generic_outw(b, port);
-	ctrl_delay();
-}
-
-void generic_outl_p(u32 b, unsigned long port)
-{
-	generic_outl(b, port);
-	ctrl_delay();
-}
-
-/*
- * outsb/w/l all write a series of bytes/words/longs to a fixed port
- * address. However as the port address doesn't change we only need to
- * convert the port address to real address once.
- */
-void generic_outsb(unsigned long port, const void *src, unsigned long count)
-{
-	__raw_writesb(__ioport_map(port, 1), src, count);
-	dummy_read();
-}
-
-void generic_outsw(unsigned long port, const void *src, unsigned long count)
-{
-	__raw_writesw(__ioport_map(port, 2), src, count);
-	dummy_read();
-}
-
-void generic_outsl(unsigned long port, const void *src, unsigned long count)
-{
-	__raw_writesl(__ioport_map(port, 4), src, count);
-	dummy_read();
-}
-
-void __iomem *generic_ioport_map(unsigned long addr, unsigned int size)
-{
-#ifdef P1SEG
-	if (PXSEG(addr) >= P1SEG)
-		return (void __iomem *)addr;
-#endif
-
-	return (void __iomem *)(addr + generic_io_base);
-}
-
-void generic_ioport_unmap(void __iomem *addr)
-{
-}
-
-#ifndef CONFIG_GENERIC_IOMAP
-void __iomem *ioport_map(unsigned long port, unsigned int nr)
-{
-	void __iomem *ret;
-
-	ret = __ioport_map_trapped(port, nr);
-	if (ret)
-		return ret;
-
-	return __ioport_map(port, nr);
-}
-EXPORT_SYMBOL(ioport_map);
-
-void ioport_unmap(void __iomem *addr)
-{
-	sh_mv.mv_ioport_unmap(addr);
-}
-EXPORT_SYMBOL(ioport_unmap);
-#endif /* CONFIG_GENERIC_IOMAP */
diff --git a/arch/sh/kernel/iomap.c b/arch/sh/kernel/iomap.c
new file mode 100644
index 0000000..2e8e8b9
--- /dev/null
+++ b/arch/sh/kernel/iomap.c
@@ -0,0 +1,165 @@
+/*
+ * arch/sh/kernel/iomap.c
+ *
+ * Copyright (C) 2000  Niibe Yutaka
+ * Copyright (C) 2005 - 2007 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/module.h>
+#include <linux/io.h>
+
+unsigned int ioread8(void __iomem *addr)
+{
+	return readb(addr);
+}
+EXPORT_SYMBOL(ioread8);
+
+unsigned int ioread16(void __iomem *addr)
+{
+	return readw(addr);
+}
+EXPORT_SYMBOL(ioread16);
+
+unsigned int ioread16be(void __iomem *addr)
+{
+	return be16_to_cpu(__raw_readw(addr));
+}
+EXPORT_SYMBOL(ioread16be);
+
+unsigned int ioread32(void __iomem *addr)
+{
+	return readl(addr);
+}
+EXPORT_SYMBOL(ioread32);
+
+unsigned int ioread32be(void __iomem *addr)
+{
+	return be32_to_cpu(__raw_readl(addr));
+}
+EXPORT_SYMBOL(ioread32be);
+
+void iowrite8(u8 val, void __iomem *addr)
+{
+	writeb(val, addr);
+}
+EXPORT_SYMBOL(iowrite8);
+
+void iowrite16(u16 val, void __iomem *addr)
+{
+	writew(val, addr);
+}
+EXPORT_SYMBOL(iowrite16);
+
+void iowrite16be(u16 val, void __iomem *addr)
+{
+	__raw_writew(cpu_to_be16(val), addr);
+}
+EXPORT_SYMBOL(iowrite16be);
+
+void iowrite32(u32 val, void __iomem *addr)
+{
+	writel(val, addr);
+}
+EXPORT_SYMBOL(iowrite32);
+
+void iowrite32be(u32 val, void __iomem *addr)
+{
+	__raw_writel(cpu_to_be32(val), addr);
+}
+EXPORT_SYMBOL(iowrite32be);
+
+/*
+ * These are the "repeat MMIO read/write" functions.
+ * Note the "__raw" accesses, since we don't want to
+ * convert to CPU byte order. We write in "IO byte
+ * order" (we also don't have IO barriers).
+ */
+static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
+{
+	while (--count >= 0) {
+		u8 data = __raw_readb(addr);
+		*dst = data;
+		dst++;
+	}
+}
+
+static inline void mmio_insw(void __iomem *addr, u16 *dst, int count)
+{
+	while (--count >= 0) {
+		u16 data = __raw_readw(addr);
+		*dst = data;
+		dst++;
+	}
+}
+
+static inline void mmio_insl(void __iomem *addr, u32 *dst, int count)
+{
+	while (--count >= 0) {
+		u32 data = __raw_readl(addr);
+		*dst = data;
+		dst++;
+	}
+}
+
+static inline void mmio_outsb(void __iomem *addr, const u8 *src, int count)
+{
+	while (--count >= 0) {
+		__raw_writeb(*src, addr);
+		src++;
+	}
+}
+
+static inline void mmio_outsw(void __iomem *addr, const u16 *src, int count)
+{
+	while (--count >= 0) {
+		__raw_writew(*src, addr);
+		src++;
+	}
+}
+
+static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count)
+{
+	while (--count >= 0) {
+		__raw_writel(*src, addr);
+		src++;
+	}
+}
+
+void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+	mmio_insb(addr, dst, count);
+}
+EXPORT_SYMBOL(ioread8_rep);
+
+void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+	mmio_insw(addr, dst, count);
+}
+EXPORT_SYMBOL(ioread16_rep);
+
+void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
+{
+	mmio_insl(addr, dst, count);
+}
+EXPORT_SYMBOL(ioread32_rep);
+
+void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+	mmio_outsb(addr, src, count);
+}
+EXPORT_SYMBOL(iowrite8_rep);
+
+void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+	mmio_outsw(addr, src, count);
+}
+EXPORT_SYMBOL(iowrite16_rep);
+
+void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
+{
+	mmio_outsl(addr, src, count);
+}
+EXPORT_SYMBOL(iowrite32_rep);
diff --git a/arch/sh/kernel/ioport.c b/arch/sh/kernel/ioport.c
new file mode 100644
index 0000000..e3ad610
--- /dev/null
+++ b/arch/sh/kernel/ioport.c
@@ -0,0 +1,43 @@
+/*
+ * arch/sh/kernel/ioport.c
+ *
+ * Copyright (C) 2000  Niibe Yutaka
+ * Copyright (C) 2005 - 2007 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/module.h>
+#include <linux/io.h>
+
+const unsigned long sh_io_port_base __read_mostly = -1;
+EXPORT_SYMBOL(sh_io_port_base);
+
+void __iomem *__ioport_map(unsigned long addr, unsigned int size)
+{
+	if (sh_mv.mv_ioport_map)
+		return sh_mv.mv_ioport_map(addr, size);
+
+	return (void __iomem *)(addr + sh_io_port_base);
+}
+EXPORT_SYMBOL(__ioport_map);
+
+void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+	void __iomem *ret;
+
+	ret = __ioport_map_trapped(port, nr);
+	if (ret)
+		return ret;
+
+	return __ioport_map(port, nr);
+}
+EXPORT_SYMBOL(ioport_map);
+
+void ioport_unmap(void __iomem *addr)
+{
+	if (sh_mv.mv_ioport_unmap)
+		sh_mv.mv_ioport_unmap(addr);
+}
+EXPORT_SYMBOL(ioport_unmap);
diff --git a/arch/sh/kernel/machvec.c b/arch/sh/kernel/machvec.c
index 9f9bb63..3d722e4 100644
--- a/arch/sh/kernel/machvec.c
+++ b/arch/sh/kernel/machvec.c
@@ -118,28 +118,6 @@
 		sh_mv.mv_##elem = generic_##elem; \
 } while (0)
 
-#ifdef CONFIG_HAS_IOPORT
-
-#ifdef P2SEG
-	__set_io_port_base(P2SEG);
-#else
-	__set_io_port_base(0);
-#endif
-
-	mv_set(inb);	mv_set(inw);	mv_set(inl);
-	mv_set(outb);	mv_set(outw);	mv_set(outl);
-
-	mv_set(inb_p);	mv_set(inw_p);	mv_set(inl_p);
-	mv_set(outb_p);	mv_set(outw_p);	mv_set(outl_p);
-
-	mv_set(insb);	mv_set(insw);	mv_set(insl);
-	mv_set(outsb);	mv_set(outsw);	mv_set(outsl);
-
-	mv_set(ioport_map);
-	mv_set(ioport_unmap);
-
-#endif
-
 	mv_set(irq_demux);
 	mv_set(mode_pins);
 	mv_set(mem_init);