MTD: pxa3xx-nand: add devicetree bindings
This patch contains a hack to get the DMA resources of the device when
probed from a devicetree node. This can be removed once a generic DMA
controller framework lands.
A mtd_part_parser_data is passed mtd_device_parse_register which
contains a reference to the device node, so MTD partitions can be
added as children.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
diff --git a/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt b/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt
new file mode 100644
index 0000000..f1421e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt
@@ -0,0 +1,31 @@
+PXA3xx NAND DT bindings
+
+Required properties:
+
+ - compatible: Should be "marvell,pxa3xx-nand"
+ - reg: The register base for the controller
+ - interrupts: The interrupt to map
+ - #address-cells: Set to <1> if the node includes partitions
+
+Optional properties:
+
+ - marvell,nand-enable-arbiter: Set to enable the bus arbiter
+ - marvell,nand-keep-config: Set to keep the NAND controller config as set
+ by the bootloader
+ - num-cs: Number of chipselect lines to usw
+
+Example:
+
+ nand0: nand@43100000 {
+ compatible = "marvell,pxa3xx-nand";
+ reg = <0x43100000 90>;
+ interrupts = <45>;
+ #address-cells = <1>;
+
+ marvell,nand-enable-arbiter;
+ marvell,nand-keep-config;
+ num-cs = <1>;
+
+ /* partitions (optional) */
+ };
+