memory: Describe the MEMORY Kconfig entry

Write short description about the entire memory controllers section.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

diff --git a/drivers/memory/Kconfig b/drivers/memory/Kconfig
index 04368ee..d46f21d 100644 (file)
--- a/drivers/memory/Kconfig
+++ b/drivers/memory/Kconfig
@@ -5,6 +5,12 @@
 
 menuconfig MEMORY
        bool "Memory Controller drivers"
+       help
+         This option allows to enable specific memory controller drivers,
+         useful mostly on embedded systems.  These could be controllers
+         for DRAM (SDR, DDR), ROM, SRAM and others.  The drivers features
+         vary from memory tuning and frequency scaling to enabling
+         access to attached peripherals through memory bus.
 
 if MEMORY