3 files changed, 63 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-gpio.txt b/Documentation/devicetree/bindings/spi/spi-gpio.txt
index 8a824be15754..a95603bcf6ff 100644
--- a/Documentation/devicetree/bindings/spi/spi-gpio.txt
+++ b/Documentation/devicetree/bindings/spi/spi-gpio.txt
@@ -8,8 +8,10 @@ Required properties:
  - gpio-sck: GPIO spec for the SCK line to use
  - gpio-miso: GPIO spec for the MISO line to use
  - gpio-mosi: GPIO spec for the MOSI line to use
- - cs-gpios: GPIOs to use for chipselect lines
- - num-chipselects: number of chipselect lines
+ - cs-gpios: GPIOs to use for chipselect lines.
+             Not needed if num-chipselects = <0>.
+ - num-chipselects: Number of chipselect lines. Should be <0> if a single device
+                    with no chip select is connected.
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/spi/spi-img-spfi.txt b/Documentation/devicetree/bindings/spi/spi-img-spfi.txt
new file mode 100644
index 000000000000..c7dd50fb8eb2
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-img-spfi.txt
@@ -0,0 +1,37 @@
+IMG Synchronous Peripheral Flash Interface (SPFI) controller
+
+Required properties:
+- compatible: Must be "img,spfi".
+- reg: Must contain the base address and length of the SPFI registers.
+- interrupts: Must contain the SPFI interrupt.
+- clocks: Must contain an entry for each entry in clock-names.
+  See ../clock/clock-bindings.txt for details.
+- clock-names: Must include the following entries:
+  - spfi: SPI operating clock
+  - sys: SPI system interface clock
+- dmas: Must contain an entry for each entry in dma-names.
+  See ../dma/dma.txt for details.
+- dma-names: Must include the following entries:
+  - rx
+  - tx
+- #address-cells: Must be 1.
+- #size-cells: Must be 0.
+
+Optional properties:
+- img,supports-quad-mode: Should be set if the interface supports quad mode
+  SPI transfers.
+
+Example:
+
+spi@18100f00 {
+	compatible = "img,spfi";
+	reg = <0x18100f00 0x100>;
+	interrupts = <GIC_SHARED 22 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&spi_clk>, <&system_clk>;
+	clock-names = "spfi", "sys";
+	dmas = <&mdc 9 0xffffffff 0>, <&mdc 10 0xffffffff 0>;
+	dma-names = "rx", "tx";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+};
diff --git a/Documentation/devicetree/bindings/spi/spi-meson.txt b/Documentation/devicetree/bindings/spi/spi-meson.txt
new file mode 100644
index 000000000000..bb52a86f3365
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-meson.txt
@@ -0,0 +1,22 @@
+Amlogic Meson SPI controllers
+
+* SPIFC (SPI Flash Controller)
+
+The Meson SPIFC is a controller optimized for communication with SPI
+NOR memories, without DMA support and a 64-byte unified transmit /
+receive buffer.
+
+Required properties:
+ - compatible: should be "amlogic,meson6-spifc"
+ - reg: physical base address and length of the controller registers
+ - clocks: phandle of the input clock for the baud rate generator
+ - #address-cells: should be 1
+ - #size-cells: should be 0
+
+	spi@c1108c80 {
+		compatible = "amlogic,meson6-spifc";
+		reg = <0xc1108c80 0x80>;
+		clocks = <&clk81>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};