From f7c086e94e8ce9aad7268af97f73aa6884686f27 Mon Sep 17 00:00:00 2001 From: Dirk Behme Date: Thu, 2 Aug 2007 17:41:14 +0200 Subject: [PATCH 1/2] Move 64bit division from avr32 to generic lib MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- include/{asm-avr32 => }/div64.h | 0 lib_avr32/Makefile | 2 +- lib_generic/Makefile | 2 +- {lib_avr32 => lib_generic}/div64.c | 2 -- 4 files changed, 2 insertions(+), 4 deletions(-) rename include/{asm-avr32 => }/div64.h (100%) rename {lib_avr32 => lib_generic}/div64.c (97%) diff --git a/include/asm-avr32/div64.h b/include/div64.h similarity index 100% rename from include/asm-avr32/div64.h rename to include/div64.h diff --git a/lib_avr32/Makefile b/lib_avr32/Makefile index cf20836023..bb2938fe5c 100644 --- a/lib_avr32/Makefile +++ b/lib_avr32/Makefile @@ -29,7 +29,7 @@ LIB = $(obj)lib$(ARCH).a SOBJS = memset.o -COBJS = board.o interrupts.o avr32_linux.o div64.o +COBJS = board.o interrupts.o avr32_linux.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/lib_generic/Makefile b/lib_generic/Makefile index b2091c5e78..bf377529c2 100644 --- a/lib_generic/Makefile +++ b/lib_generic/Makefile @@ -27,7 +27,7 @@ LIB = $(obj)libgeneric.a COBJS = bzlib.o bzlib_crctable.o bzlib_decompress.o \ bzlib_randtable.o bzlib_huffman.o \ - crc32.o ctype.o display_options.o ldiv.o sha1.o \ + crc32.o ctype.o display_options.o div64.o ldiv.o sha1.o \ string.o vsprintf.o zlib.o SRCS := $(COBJS:.o=.c) diff --git a/lib_avr32/div64.c b/lib_generic/div64.c similarity index 97% rename from lib_avr32/div64.c rename to lib_generic/div64.c index 99726e325d..d9951b597f 100644 --- a/lib_avr32/div64.c +++ b/lib_generic/div64.c @@ -18,8 +18,6 @@ #include -#include - uint32_t __div64_32(uint64_t *n, uint32_t base) { uint64_t rem = *n; From 3a6d56c20989fe27360afe743bd2a7ad4d76e48f Mon Sep 17 00:00:00 2001 From: Dirk Behme Date: Thu, 2 Aug 2007 17:42:08 +0200 Subject: [PATCH 2/2] Make use of generic 64bit division in nand_util.c Use generic 64bit division in nand_util.c. This makes nand_util.c independent of any toolchain 64bit division. Signed-off-by: Dirk Behme --- drivers/nand/nand_util.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/nand/nand_util.c b/drivers/nand/nand_util.c index 88c1df6c20..aee8727039 100644 --- a/drivers/nand/nand_util.c +++ b/drivers/nand/nand_util.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include @@ -208,10 +209,10 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) } if (!opts->quiet) { - int percent = (int) - ((unsigned long long) + unsigned long long n =(unsigned long long) (erase.addr+meminfo->erasesize-opts->offset) - * 100 / erase_length); + * 100; + int percent = (int)do_div(n, erase_length); /* output progress message only at whole percent * steps to reduce the number of messages printed @@ -475,10 +476,9 @@ int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts) imglen -= readlen; if (!opts->quiet) { - int percent = (int) - ((unsigned long long) - (opts->length-imglen) * 100 - / opts->length); + unsigned long long n = (unsigned long long) + (opts->length-imglen) * 100; + int percent = (int)do_div(n, opts->length); /* output progress message only at whole percent * steps to reduce the number of messages printed * on (slow) serial consoles @@ -651,10 +651,9 @@ int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts) } if (!opts->quiet) { - int percent = (int) - ((unsigned long long) - (opts->length-imglen) * 100 - / opts->length); + unsigned long long n = (unsigned long long) + (opts->length-imglen) * 100; + int percent = (int)do_div(n ,opts->length); /* output progress message only at whole percent * steps to reduce the number of messages printed * on (slow) serial consoles