smallsolar/u-boot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dm: cache: add the pl310 cache controller driver

Browse Source 
Add a PL310 cache controller driver that is usually found on
ARMv7(32-bit) devices. The driver configures the cache settings that can
be found in the device tree files.

This initial revision only configures basic settings(data & instruction
prefetch, shared-override, data & tag latency). I believe these are the
settings that affect performance the most. Comprehensive settings can be
done by the OS.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
This commit is contained in:
Dinh Nguyen
2019-04-23 16:55:04 -05:00
committed by Tom Rini
parent 84b124db35
commit 88ebf5830f
3 changed files with 86 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/cache/Kconfig vendored
View File

@@ -13,4 +13,13 @@ config CACHE
is usually located on the same chip. This uclass can be used for
configuring settings that be found from a device tree file.
config L2X0_CACHE
tristate "PL310 cache driver"
select CACHE
depends on ARM
help
This driver is for the PL310 cache controller commonly found on
ARMv7(32-bit) devices. The driver configures the cache settings
found in the device tree.
endmenu