Documentation/devicetree/bindings/spi/ti_qspi.txt

   1 TI QSPI controller.
   2
   3 Required properties:
   4 - compatible : should be "ti,dra7xxx-qspi" or "ti,am4372-qspi".
   5 - reg: Should contain QSPI registers location and length.
   6 - reg-names: Should contain the resource reg names.
   7         - qspi_base: Qspi configuration register Address space
   8         - qspi_mmap: Memory mapped Address space
   9         - (optional) qspi_ctrlmod: Control module Address space
  10 - interrupts: should contain the qspi interrupt number.
  11 - #address-cells, #size-cells : Must be present if the device has sub-nodes
  12 - ti,hwmods: Name of the hwmod associated to the QSPI
  13
  14 Recommended properties:
  15 - spi-max-frequency: Definition as per
  16                      Documentation/devicetree/bindings/spi/spi-bus.txt
  17
  18 Optional properties:
  19 - syscon-chipselects: Handle to system control region contains QSPI
  20                       chipselect register and offset of that register.
  21
  22 Example:
  23
  24 For am4372:
  25 qspi: qspi@4b300000 {
  26         compatible = "ti,am4372-qspi";
  27         reg = <0x47900000 0x100>, <0x30000000 0x4000000>;
  28         reg-names = "qspi_base", "qspi_mmap";
  29         #address-cells = <1>;
  30         #size-cells = <0>;
  31         spi-max-frequency = <25000000>;
  32         ti,hwmods = "qspi";
  33 };
  34
  35 For dra7xx:
  36 qspi: qspi@4b300000 {
  37         compatible = "ti,dra7xxx-qspi";
  38         reg = <0x4b300000 0x100>,
  39               <0x5c000000 0x4000000>,
  40         reg-names = "qspi_base", "qspi_mmap";
  41         syscon-chipselects = <&scm_conf 0x558>;
  42         #address-cells = <1>;
  43         #size-cells = <0>;
  44         spi-max-frequency = <48000000>;
  45         ti,hwmods = "qspi";
  46 };