1 * STMicroelectronics Quad Serial Peripheral Interface(QuadSPI)
4 - compatible: should be "st,stm32f469-qspi"
5 - reg: the first contains the register location and length.
6 the second contains the memory mapping address and length
7 - reg-names: should contain the reg names "qspi" "qspi_mm"
8 - interrupts: should contain the interrupt for the device
9 - clocks: the phandle of the clock needed by the QSPI controller
10 - A pinctrl must be defined to set pins in mode of operation for QSPI transfer
13 - resets: must contain the phandle to the reset controller.
15 A spi flash must be a child of the nor_flash node and could have some
16 properties. Also see jedec,spi-nor.txt.
19 - reg: chip-Select number (QSPI controller may connect 2 nor flashes)
20 - spi-max-frequency: max frequency of spi bus
23 - spi-rx-bus-width: see ../spi/spi-bus.txt for the description
28 compatible = "st,stm32f469-qspi";
29 reg = <0xa0001000 0x1000>, <0x90000000 0x10000000>;
30 reg-names = "qspi", "qspi_mm";
32 resets = <&rcc STM32F4_AHB3_RESET(QSPI)>;
33 clocks = <&rcc 0 STM32F4_AHB3_CLOCK(QSPI)>;
34 pinctrl-names = "default";
35 pinctrl-0 = <&pinctrl_qspi0>;
39 spi-rx-bus-width = <4>;
40 spi-max-frequency = <108000000>;