| TI QSPI controller. |
| |
| Required properties: |
| - compatible : should be "ti,dra7xxx-qspi" or "ti,am4372-qspi". |
| - reg: Should contain QSPI registers location and length. |
| - reg-names: Should contain the resource reg names. |
| - qspi_base: Qspi configuration register Address space |
| - qspi_mmap: Memory mapped Address space |
| - (optional) qspi_ctrlmod: Control module Address space |
| - interrupts: should contain the qspi interrupt number. |
| - #address-cells, #size-cells : Must be present if the device has sub-nodes |
| - ti,hwmods: Name of the hwmod associated to the QSPI |
| |
| Recommended properties: |
| - spi-max-frequency: Definition as per |
| Documentation/devicetree/bindings/spi/spi-bus.txt |
| |
| Optional properties: |
| - syscon-chipselects: Handle to system control region contains QSPI |
| chipselect register and offset of that register. |
| |
| Example: |
| |
| qspi: qspi@4b300000 { |
| compatible = "ti,dra7xxx-qspi"; |
| reg = <0x47900000 0x100>, <0x30000000 0x3ffffff>; |
| reg-names = "qspi_base", "qspi_mmap"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| spi-max-frequency = <25000000>; |
| ti,hwmods = "qspi"; |
| }; |
| |
| For dra7xx: |
| qspi: qspi@4b300000 { |
| compatible = "ti,dra7xxx-qspi"; |
| reg = <0x4b300000 0x100>, |
| <0x5c000000 0x4000000>, |
| reg-names = "qspi_base", "qspi_mmap"; |
| syscon-chipselects = <&scm_conf 0x558>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| spi-max-frequency = <48000000>; |
| ti,hwmods = "qspi"; |
| }; |