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95c6f6d34d
u-boot-brain/arch/arm/lib
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Heiko Schocher 95c6f6d34d ARM V7 (OMAP): add data cache support, test on Beagle board 
Add data cache support for ARM V7 systems. Used cache flush
functions from linux:arch/arm/mm/cache-v7.S developed from
Catalin Marinas.

Enable "cache" command on Beagle 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
    --------------------------------------------------
    Beagle (Cortex A8)	116s	106s	30.3s	= x 3.8

    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
    --------------------------------------------------
    Beagle (Cortex A8)	1.84s	1.64s	0.12s	= x 15.3

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

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Ben Gardiner<bengardiner@nanometrics.ca>
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 V7 (OMAP): add data cache support, test on Beagle 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