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| author | Dirk Behme <dirk.behme@googlemail.com> | 2007-08-02 17:41:14 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2007-08-10 10:33:34 +0200 |
| commit | f7c086e94e8ce9aad7268af97f73aa6884686f27 (patch) | |
| tree | f6027f3aa957584b779daeb26efba7326630a8e8 /include/asm-avr32 | |
| parent | a22806469a8f2b69c829f4fd5361fdebd0cb01b4 (diff) | |
| download | u-boot-imx-f7c086e94e8ce9aad7268af97f73aa6884686f27.zip u-boot-imx-f7c086e94e8ce9aad7268af97f73aa6884686f27.tar.gz u-boot-imx-f7c086e94e8ce9aad7268af97f73aa6884686f27.tar.bz2 | |
Move 64bit division from avr32 to generic lib
Move the 64bit division from lib_avr32 to lib_generic. With this, all
boards can do_div/__div64_32 if needed, not only avr one. Code is put
to lib_generic, so no larger memory footprint if not used. No code
modifications. Thanks for proposal by Håvard Skinnemoen.
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Diffstat (limited to 'include/asm-avr32')
| -rw-r--r-- | include/asm-avr32/div64.h | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/include/asm-avr32/div64.h b/include/asm-avr32/div64.h deleted file mode 100644 index 2e0ba83..0000000 --- a/include/asm-avr32/div64.h +++ /dev/null @@ -1,39 +0,0 @@ -#ifndef _ASM_GENERIC_DIV64_H -#define _ASM_GENERIC_DIV64_H -/* - * Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com> - * Based on former asm-ppc/div64.h and asm-m68knommu/div64.h - * - * The semantics of do_div() are: - * - * uint32_t do_div(uint64_t *n, uint32_t base) - * { - * uint32_t remainder = *n % base; - * *n = *n / base; - * return remainder; - * } - * - * NOTE: macro parameter n is evaluated multiple times, - * beware of side effects! - */ - -#include <linux/types.h> - -extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor); - -/* The unnecessary pointer compare is there - * to check for type safety (n must be 64bit) - */ -# define do_div(n,base) ({ \ - uint32_t __base = (base); \ - uint32_t __rem; \ - (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ - if (((n) >> 32) == 0) { \ - __rem = (uint32_t)(n) % __base; \ - (n) = (uint32_t)(n) / __base; \ - } else \ - __rem = __div64_32(&(n), __base); \ - __rem; \ - }) - -#endif /* _ASM_GENERIC_DIV64_H */ |