From: Tudor Ambarus <tudor.amba...@microchip.com>
Describe the DT bindings for the driver of the Atmel QSPI
controller. Taken form linux v5.1-rc5.
Signed-off-by: Tudor Ambarus <tudor.amba...@microchip.com>
---
v3: no change
v2: no change
doc/device-tree-bindings/spi/atmel-quadspi.txt | 37 ++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
create mode 100644 doc/device-tree-bindings/spi/atmel-quadspi.txt
diff --git a/doc/device-tree-bindings/spi/atmel-quadspi.txt
b/doc/device-tree-bindings/spi/atmel-quadspi.txt
new file mode 100644
index 000000000000..7c40ea694352
--- /dev/null
+++ b/doc/device-tree-bindings/spi/atmel-quadspi.txt
@@ -0,0 +1,37 @@
+* Atmel Quad Serial Peripheral Interface (QSPI)
+
+Required properties:
+- compatible: Should be one of the following:
+ - "atmel,sama5d2-qspi"
+ - "microchip,sam9x60-qspi"
+- reg: Should contain the locations and lengths of the base
registers
+ and the mapped memory.
+- reg-names: Should contain the resource reg names:
+ - qspi_base: configuration register address space
+ - qspi_mmap: memory mapped address space
+- interrupts: Should contain the interrupt for the device.
+- clocks: Should reference the peripheral clock and the QSPI system
+ clock if available.
+- clock-names: Should contain "pclk" for the peripheral clock and "qspick"
+ for the system clock when available.
+- #address-cells: Should be <1>.
+- #size-cells: Should be <0>.
+
+Example:
+
+spi@f0020000 {
+ compatible = "atmel,sama5d2-qspi";
+ reg = <0xf0020000 0x100>, <0xd0000000 0x8000000>;
+ reg-names = "qspi_base", "qspi_mmap";
+ interrupts = <52 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&pmc PMC_TYPE_PERIPHERAL 52>;
+ clock-names = "pclk";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spi0_default>;
+
+ m25p80@0 {
+ ...
+ };
+};
--
2.9.5
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