From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- arch/sh/include/mach-common/mach/mangle-port.h | 49 ++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 arch/sh/include/mach-common/mach/mangle-port.h (limited to 'arch/sh/include/mach-common/mach/mangle-port.h') diff --git a/arch/sh/include/mach-common/mach/mangle-port.h b/arch/sh/include/mach-common/mach/mangle-port.h new file mode 100644 index 00000000..4ca1769a --- /dev/null +++ b/arch/sh/include/mach-common/mach/mangle-port.h @@ -0,0 +1,49 @@ +/* + * SH version cribbed from the MIPS copy: + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2003, 2004 Ralf Baechle + */ +#ifndef __MACH_COMMON_MANGLE_PORT_H +#define __MACH_COMMON_MANGLE_PORT_H + +/* + * Sane hardware offers swapping of PCI/ISA I/O space accesses in hardware; + * less sane hardware forces software to fiddle with this... + * + * Regardless, if the host bus endianness mismatches that of PCI/ISA, then + * you can't have the numerical value of data and byte addresses within + * multibyte quantities both preserved at the same time. Hence two + * variations of functions: non-prefixed ones that preserve the value + * and prefixed ones that preserve byte addresses. The latters are + * typically used for moving raw data between a peripheral and memory (cf. + * string I/O functions), hence the "__mem_" prefix. + */ +#if defined(CONFIG_SWAP_IO_SPACE) + +# define ioswabb(x) (x) +# define __mem_ioswabb(x) (x) +# define ioswabw(x) le16_to_cpu(x) +# define __mem_ioswabw(x) (x) +# define ioswabl(x) le32_to_cpu(x) +# define __mem_ioswabl(x) (x) +# define ioswabq(x) le64_to_cpu(x) +# define __mem_ioswabq(x) (x) + +#else + +# define ioswabb(x) (x) +# define __mem_ioswabb(x) (x) +# define ioswabw(x) (x) +# define __mem_ioswabw(x) cpu_to_le16(x) +# define ioswabl(x) (x) +# define __mem_ioswabl(x) cpu_to_le32(x) +# define ioswabq(x) (x) +# define __mem_ioswabq(x) cpu_to_le32(x) + +#endif + +#endif /* __MACH_COMMON_MANGLE_PORT_H */ -- cgit