ARM: i.MX6: add i.MX6 specific L2 cache configuration
To improve the performance and power consumption add an i.MX6
specific L2 cache initialization.
This configuration is taken from Freescale's kernel patch
"ENGR00153601 [MX6]Adjust L2 cache parameter" [1]
with two additional improvements:
a) The L2X0_POWER_CTRL has only the two bits we set. So no need
to read the register before. Remove the register read done
in Freescale's patch.
b) In the L2X0_PREFETCH_CTRL register, besides the double linefill (bit[30]),
additionally enable the instruction and data prefetch (bit[29-28]).
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
[1] http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/commit/arch/arm/mach-mx6/mm.c?h=imx_3.0.35_12.09.01&id=814656410b40c67a10b25300e51b0477b2bb96d1
1 file changed