dm: cache: add the pl310 cache controller driver
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>
diff --git a/drivers/cache/Kconfig b/drivers/cache/Kconfig
index 8b7c9c7..24def7a 100644
--- a/drivers/cache/Kconfig
+++ b/drivers/cache/Kconfig
@@ -13,4 +13,13 @@
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