This commit adds the devicetree binding document that specifies the
spi nand devices support.
Signed-off-by: Peter Pan <peterpandong@xxxxxxxxxx>
---
Documentation/devicetree/bindings/mtd/spi-nand.txt | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/spi-nand.txt
diff --git a/Documentation/devicetree/bindings/mtd/spi-nand.txt b/Documentation/devicetree/bindings/mtd/spi-nand.txt
new file mode 100644
index 0000000..9dd3efd
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/spi-nand.txt
@@ -0,0 +1,22 @@
+* NAND driver for MT29F, GD5F and similar SPI NAND flash chips
+
+Required properties:
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+ representing partitions.
+- compatible : Should be the manufacturer and the name of the chip. Bear in mind
+ the DT binding is not Linux-only, but in case of Linux, see the
+ "spi_nand_id_table" array in drivers/mtd/spi-nand/spi-nand-device.c
+ for the list of supported chips.
+- reg : Chip-Select number
+- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at
+
+Example:
+
+ flash: flash@0 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "micron,mt29f";
+ reg = <0>;
+ spi-max-frequency = <50000000>;
+ };
+
--
1.9.1
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