picoxcell: remove custom ioremap implementation

Nicolas Pitre's generic ioremap() patch set means that we don't need
this any more.
Signed-off-by: Jamie Iles <jamie@jamieiles.com>

arch/arm/mach-picoxcell/include/mach/io.h

@@ -19,11 +19,4 @@
 /* No PCI possible on picoxcell. */
 #define __mem_pci(a)		(a)
 
-#define __arch_ioremap	picoxcell_ioremap
-#define __arch_iounmap	picoxcell_iounmap
-
-extern void __iomem *picoxcell_ioremap(unsigned long phys, size_t size,
-				       unsigned int type);
-extern void picoxcell_iounmap(volatile void __iomem *addr);
-
 #endif /* __ASM_ARM_ARCH_IO_H */

arch/arm/mach-picoxcell/include/mach/vmalloc.h

-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#define VMALLOC_END		0xFE000000UL

arch/arm/mach-picoxcell/io.c

@@ -30,27 +30,3 @@ void __init picoxcell_map_io(void)
 
 	iotable_init(&io_map, 1);
 }
-
-void __iomem *picoxcell_ioremap(unsigned long p, size_t size,
-				unsigned int type)
-{
-	if (unlikely(size == 0))
-		return NULL;
-
-	if (p >= PICOXCELL_PERIPH_BASE &&
-	    p < PICOXCELL_PERIPH_BASE + PICOXCELL_PERIPH_LENGTH)
-		return IO_ADDRESS(p);
-
-	return __arm_ioremap_caller(p, size, type,
-				    __builtin_return_address(0));
-}
-EXPORT_SYMBOL_GPL(picoxcell_ioremap);
-
-void picoxcell_iounmap(volatile void __iomem *addr)
-{
-	unsigned long virt = (unsigned long)addr;
-
-	if (virt >= VMALLOC_START && virt < VMALLOC_END)
-		__iounmap(addr);
-}
-EXPORT_SYMBOL_GPL(picoxcell_iounmap);