[PATCH linux dev-4.13 v1 1/2] dt-binding: mtd: document NPCM7xx SPI DT bindings
Tomer Maimon
tmaimon77 at gmail.com
Wed Dec 27 23:10:36 AEDT 2017
Added device tree binding documentation for Nuvoton
NPCM7xx Serial Peripheral Interface (SPI) NOR
Signed-off-by: Tomer Maimon <tmaimon77 at gmail.com>
---
Documentation/devicetree/bindings/mtd/npcm-spi.txt | 31 ++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100755 Documentation/devicetree/bindings/mtd/npcm-spi.txt
diff --git a/Documentation/devicetree/bindings/mtd/npcm-spi.txt b/Documentation/devicetree/bindings/mtd/npcm-spi.txt
new file mode 100755
index 000000000000..3c30271c3712
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/npcm-spi.txt
@@ -0,0 +1,31 @@
+* Nuvoton Serial Peripheral Interface(SPI)
+
+Required properties:
+ - compatible : "nuvoton,npcm750-spi" for NPCM750 BMC
+ - #address-cells : should be 1.
+ - #size-cells : should be 0.
+ - reg : the first contains the register location and length,
+ the second contains the memory mapping address and length
+ - reg-names: Should contain the reg names "control" and "memory"
+ - clocks : phandle of SPI reference clock.
+
+Optional properties:
+ - chip-max-address-map: Chip maximum address mapping for direct use.
+ the maximum address map size:
+ NPCM7xx - 0x8000000 (128Mb)
+
+Example:
+
+spi0: spi at fb000000 {
+ compatible = "nuvoton,npcm750-spi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0xfb000000 0x1000>, <0x80000000 0x10000000>;
+ reg-names = "control", "memory";
+ chip-max-address-map = <0x8000000>;
+ clocks = <&clk NPCM7XX_CLK_AHB>;
+ spi-nor at 0 {
+ ...
+ };
+};
+
--
2.14.1
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