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Heiko Schocher 7e4a9e6dc8 ARM (ARM11): add data cache support, test on Qong board 
Add data cache support for arm1136 systems.

Enable "cache" command on Qong 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
    --------------------------------------------------
    QONG (ARM11)	177s	95s	43s	= x 4.1

    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
    --------------------------------------------------
    QONG (ARM11)	1.54s	0.95s	0.18s	= x 8.6

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

Signed-off-by: Heiko Schocher <hs@denx.de>
 		2010-09-19 19:29:51 +02:00
..
mx31 ARM: */timer.c: fix spelling and vertical alignment 2010-05-21 23:13:18 +02:00
omap24xx ARM: */timer.c: fix spelling and vertical alignment 2010-05-21 23:13:18 +02:00
Makefile arm: Move cpu/$CPU to arch/arm/cpu/$CPU 2010-04-13 09:13:24 +02:00
config.mk arm: Move cpu/$CPU to arch/arm/cpu/$CPU 2010-04-13 09:13:24 +02:00
cpu.c ARM1136: Fix cache_flush() error and correct cpu_init_crit() comments 2010-06-01 06:44:09 -05:00
start.S ARM (ARM11): add data cache support, test on Qong board 2010-09-19 19:29:51 +02:00
u-boot.lds arm: Move cpu/$CPU to arch/arm/cpu/$CPU 2010-04-13 09:13:24 +02:00