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Diffstat (limited to 'arch/openrisc/include/asm/io.h')
| -rw-r--r-- | arch/openrisc/include/asm/io.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/io.h b/arch/openrisc/include/asm/io.h new file mode 100644 index 0000000000..5a6f0f16a5 --- /dev/null +++ b/arch/openrisc/include/asm/io.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * 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. + */ + +#ifndef __ASM_OPENRISC_IO_H +#define __ASM_OPENRISC_IO_H + +#include <linux/types.h> +#include <asm/pgalloc.h> +#include <asm/pgtable.h> + +/* + * PCI: We do not use IO ports in OpenRISC + */ +#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 + +/* + * I/O memory mapping functions. + */ +#define _PAGE_IOREMAP (pgprot_val(PAGE_KERNEL) | _PAGE_CI) + +#include <asm-generic/io.h> + +#endif |