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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/openrisc/include/asm/io.h |
Initial import
Diffstat (limited to 'arch/openrisc/include/asm/io.h')
-rw-r--r-- | arch/openrisc/include/asm/io.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/io.h b/arch/openrisc/include/asm/io.h new file mode 100644 index 000000000..7c691399d --- /dev/null +++ b/arch/openrisc/include/asm/io.h @@ -0,0 +1,52 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_IO_H +#define __ASM_OPENRISC_IO_H + +/* + * PCI: can we really do 0 here if we have no port IO? + */ +#define IO_SPACE_LIMIT 0 + +/* OpenRISC has no port IO */ +#define HAVE_ARCH_PIO_SIZE 1 +#define PIO_RESERVED 0X0UL +#define PIO_OFFSET 0 +#define PIO_MASK 0 + +#include <asm-generic/io.h> +#include <asm/pgtable.h> + +extern void __iomem *__ioremap(phys_addr_t offset, unsigned long size, + pgprot_t prot); + +static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size) +{ + return __ioremap(offset, size, PAGE_KERNEL); +} + +/* #define _PAGE_CI 0x002 */ +static inline void __iomem *ioremap_nocache(phys_addr_t offset, + unsigned long size) +{ + return __ioremap(offset, size, + __pgprot(pgprot_val(PAGE_KERNEL) | _PAGE_CI)); +} + +extern void iounmap(void *addr); +#endif |