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Heiko Schocher c3330e9d6a ARM (ARM926ejs): add data cache support, tested on magnesium and tx25 board 
Enable "cache" command on tx25 and magnesium board and test performance.

    Test 1: Loading 127 MB of data from NAND flash into RAM:

    Instr. Cache        off     on      on
      Data Cache        off     off     on
    --------------------------------------------------
    magnesium           32,6s   22,5s   30s     = x 1,09
    tx25 (29MB only)    9,69s   5,05s   8,16s   = x 1,19

    Test 2: uncompressing a gzipped image from RAM to RAM
            (size compressed: 6.5 MiB, uncompressed: 35 MiB):

    Instr. Cache        off     on      on
      Data Cache        off     off     on
    --------------------------------------------------
    magnesium           4,25s   2,08s   1,72s   = x 2,47
    tx25                4,82s   2,04s   1,84s   = x 2,62

Portions of this work were supported by funding from
the CE Linux Forum.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Alessandro Rubini <rubini@gnudd.com>
2010-09-19 19:29:51 +02:00
..
_ashldi3.S Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
_ashrdi3.S Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
_divsi3.S Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
_lshrdi3.S Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
_modsi3.S Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
_udivsi3.S Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
_umodsi3.S Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
board.c Save environment data to mmc. 2010-09-19 17:47:29 +02:00
bootm.c Make sure that argv[] argument pointers are not modified. 2010-07-04 23:55:42 +02:00
cache-cp15.c ARM: cp15: setup mmu and enable dcache 2010-09-19 19:29:50 +02:00
cache.c ARM (ARM926ejs): add data cache support, tested on magnesium and tx25 board 2010-09-19 19:29:51 +02:00
div0.c Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
eabi_compat.c ARM: add __aeabi_unwind_cpp_pr0() function to avoid linker complaints 2010-05-15 19:50:36 +02:00
interrupts.c Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
Makefile Move lib_$ARCH directories to arch/$ARCH/lib 2010-04-13 09:13:03 +02:00
reset.c Make sure that argv[] argument pointers are not modified. 2010-07-04 23:55:42 +02:00