diff options
Diffstat (limited to 'arch/arm/mach-ixp23xx/include/mach/io.h')
| -rw-r--r-- | arch/arm/mach-ixp23xx/include/mach/io.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp23xx/include/mach/io.h b/arch/arm/mach-ixp23xx/include/mach/io.h new file mode 100644 index 00000000..a1749d0f --- /dev/null +++ b/arch/arm/mach-ixp23xx/include/mach/io.h @@ -0,0 +1,52 @@ +/* + * arch/arm/mach-ixp23xx/include/mach/io.h + * + * Original Author: Naeem M Afzal <naeem.m.afzal@intel.com> + * Maintainer: Deepak Saxena <dsaxena@plexity.net> + * + * Copyright (C) 2003-2005 Intel Corp. + * Copyright (C) 2005 MontaVista Software, Inc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_IO_H +#define __ASM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xffffffff + +#define __io(p) ((void __iomem*)((p) + IXP23XX_PCI_IO_VIRT)) +#define __mem_pci(a) (a) + +static inline void __iomem * +ixp23xx_ioremap(unsigned long addr, unsigned long size, unsigned int mtype) +{ + if (addr >= IXP23XX_PCI_MEM_START && + addr <= IXP23XX_PCI_MEM_START + IXP23XX_PCI_MEM_SIZE) { + if (addr + size > IXP23XX_PCI_MEM_START + IXP23XX_PCI_MEM_SIZE) + return NULL; + + return (void __iomem *) + ((addr - IXP23XX_PCI_MEM_START) + IXP23XX_PCI_MEM_VIRT); + } + + return __arm_ioremap(addr, size, mtype); +} + +static inline void +ixp23xx_iounmap(void __iomem *addr) +{ + if ((((u32)addr) >= IXP23XX_PCI_MEM_VIRT) && + (((u32)addr) < IXP23XX_PCI_MEM_VIRT + IXP23XX_PCI_MEM_SIZE)) + return; + + __iounmap(addr); +} + +#define __arch_ioremap ixp23xx_ioremap +#define __arch_iounmap ixp23xx_iounmap + + +#endif |