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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/arm/mach-lpc32xx/include/mach/hardware.h | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/arm/mach-lpc32xx/include/mach/hardware.h')
-rw-r--r-- | arch/arm/mach-lpc32xx/include/mach/hardware.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/mach-lpc32xx/include/mach/hardware.h b/arch/arm/mach-lpc32xx/include/mach/hardware.h new file mode 100644 index 00000000..33e1dde3 --- /dev/null +++ b/arch/arm/mach-lpc32xx/include/mach/hardware.h @@ -0,0 +1,34 @@ +/* + * arch/arm/mach-lpc32xx/include/mach/hardware.h + * + * Copyright (c) 2005 MontaVista Software, Inc. <source@mvista.com> + * + * 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. + */ + +#ifndef __ASM_ARCH_HARDWARE_H +#define __ASM_ARCH_HARDWARE_H + +/* + * Start of virtual addresses for IO devices + */ +#define IO_BASE 0xF0000000 + +/* + * This macro relies on fact that for all HW i/o addresses bits 20-23 are 0 + */ +#define IO_ADDRESS(x) (((((x) & 0xff000000) >> 4) | ((x) & 0xfffff)) |\ + IO_BASE) + +#define io_p2v(x) ((void __iomem *) (unsigned long) IO_ADDRESS(x)) +#define io_v2p(x) ((((x) & 0x0ff00000) << 4) | ((x) & 0x000fffff)) + +#endif |