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[PATCH 1/2] dt-bindings: Document the STM32 QSPI bindings

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From: Ludovic Barre <ludovic.barre@st.com>

This patch adds documentation of device tree bindings for the STM32
QSPI controller.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
---
 .../devicetree/bindings/mtd/stm32-quadspi.txt      | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/stm32-quadspi.txt

diff --git a/Documentation/devicetree/bindings/mtd/stm32-quadspi.txt b/Documentation/devicetree/bindings/mtd/stm32-quadspi.txt
new file mode 100644
index 0000000..95a8ebd
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/stm32-quadspi.txt
@@ -0,0 +1,45 @@
+* STMicroelectronics Quad Serial Peripheral Interface(QuadSPI)
+
+Required properties:
+- compatible: should be "st,stm32f469-qspi"
+- reg: contains the register location and length.
+  (optional) the memory mapping address and length
+- reg-names: list of the names corresponding to the previous register
+  Should contain "qspi" to register location
+  (optional) "qspi_mm" if read in memory map mode (improve read throughput)
+- interrupts: should contain the interrupt for the device
+- clocks: the phandle of the clock needed by the QSPI controller
+- A pinctrl must be defined to set pins in mode of operation for QSPI transfer
+
+Optional properties:
+- resets: must contain the phandle to the reset controller.
+
+A spi flash must be a child of the nor_flash node and could have some
+properties. Also see jedec,spi-nor.txt.
+
+Required properties:
+- reg: chip-Select number (QSPI controller may connect 2 nor flashes)
+- spi-max-frequency: max frequency of spi bus
+
+Optional property:
+- spi-rx-bus-width: the bus width (number of data wires)
+
+Example:
+
+qspi: qspi@a0001000 {
+	compatible = "st,stm32f469-qspi";
+	reg = <0xa0001000 0x1000>, <0x90000000 0x10000000>;
+	reg-names = "qspi", "qspi_mm";
+	interrupts = <91>;
+	resets = <&rcc STM32F4_AHB3_RESET(QSPI)>;
+	clocks = <&rcc 0 STM32F4_AHB3_CLOCK(QSPI)>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_qspi0>;
+
+	flash@0 {
+		reg = <0>;
+		spi-rx-bus-width = <4>;
+		spi-max-frequency = <108000000>;
+		...
+	};
+};
-- 
2.7.4

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[PATCH 0/2] mtd: spi-nor: add stm32 qspi driver Ludovic Barre <ludovic.Barre@st.com> - 2017-03-27 15:00 +0200
  [PATCH 2/2] mtd: spi-nor: add driver for STM32 quad spi flash controller Ludovic Barre <ludovic.Barre@st.com> - 2017-03-27 15:00 +0200
    Re: [PATCH 2/2] mtd: spi-nor: add driver for STM32 quad spi flash  controller Marek Vasut <marek.vasut@gmail.com> - 2017-03-29 13:00 +0200
      Re: [PATCH 2/2] mtd: spi-nor: add driver for STM32 quad spi flash  controller Ludovic BARRE <ludovic.barre@st.com> - 2017-03-29 14:30 +0200
        Re: [PATCH 2/2] mtd: spi-nor: add driver for STM32 quad spi flash  controller Marek Vasut <marek.vasut@gmail.com> - 2017-03-29 15:20 +0200
          Re: [PATCH 2/2] mtd: spi-nor: add driver for STM32 quad spi flash  controller Ludovic BARRE <ludovic.barre@st.com> - 2017-03-29 15:40 +0200
            Re: [PATCH 2/2] mtd: spi-nor: add driver for STM32 quad spi flash  controller Marek Vasut <marek.vasut@gmail.com> - 2017-03-29 16:00 +0200
              Re: [PATCH 2/2] mtd: spi-nor: add driver for STM32 quad spi flash  controller Ludovic BARRE <ludovic.barre@st.com> - 2017-03-29 18:50 +0200
                Re: [PATCH 2/2] mtd: spi-nor: add driver for STM32 quad spi flash  controller Marek Vasut <marek.vasut@gmail.com> - 2017-03-30 12:20 +0200
  [PATCH 1/2] dt-bindings: Document the STM32 QSPI bindings Ludovic Barre <ludovic.Barre@st.com> - 2017-03-27 15:00 +0200
  Re: [PATCH 0/2] mtd: spi-nor: add stm32 qspi driver Cyrille Pitchen <cyrille.pitchen@wedev4u.fr> - 2017-03-29 19:30 +0200
    Re: [PATCH 0/2] mtd: spi-nor: add stm32 qspi driver Ludovic BARRE <ludovic.barre@st.com> - 2017-03-30 09:40 +0200
      Re: [PATCH 0/2] mtd: spi-nor: add stm32 qspi driver Marek Vasut <marek.vasut@gmail.com> - 2017-03-30 12:20 +0200
        Re: [PATCH 0/2] mtd: spi-nor: add stm32 qspi driver Ludovic BARRE <ludovic.barre@st.com> - 2017-04-05 18:30 +0200
        Re: [PATCH 0/2] mtd: spi-nor: add stm32 qspi driver Cyrille Pitchen <cyrille.pitchen@wedev4u.fr> - 2017-04-07 00:40 +0200

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