drivers: memory: Introduce Marvell EBU Device Bus driver
Marvell EBU SoCs such as Armada 370/XP, Orion5x (88f5xxx) and
Discovery (mv78xx0) supports a Device Bus controller to access several
kinds of memories and I/O devices (NOR, NAND, SRAM, FPGA).
This commit adds a driver to handle this controller. So far only
Armada 370, Armada XP and Discovery SoCs are supported.
The driver must be registered through a device tree node;
as explained in the binding document.
For each child node in the device tree, this driver will:
* set timing parameters
* register a child device
* setup an address decoding window, using the mbus driver
Keep in mind the address decoding window setup is only a temporary hack.
This code will be removed from this devbus driver as soon as a proper device
tree binding for the mbus driver is added.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/memory/Kconfig b/drivers/memory/Kconfig
index 067f311..29a11db 100644
--- a/drivers/memory/Kconfig
+++ b/drivers/memory/Kconfig
@@ -20,6 +20,16 @@
parameters and other settings during frequency, voltage and
temperature changes
+config MVEBU_DEVBUS
+ bool "Marvell EBU Device Bus Controller"
+ default y
+ depends on PLAT_ORION && OF
+ help
+ This driver is for the Device Bus controller available in some
+ Marvell EBU SoCs such as Discovery (mv78xx0), Orion (88f5xxx) and
+ Armada 370 and Armada XP. This controller allows to handle flash
+ devices such as NOR, NAND, SRAM, and FPGA.
+
config TEGRA20_MC
bool "Tegra20 Memory Controller(MC) driver"
default y