1 * Freescale Quad Serial Peripheral Interface(QuadSPI)
4 - compatible : Should be "fsl,vf610-qspi", "fsl,imx6sx-qspi",
5 "fsl,imx7d-qspi", "fsl,imx6ul-qspi",
8 "fsl,ls2080a-qspi" followed by "fsl,ls1021a-qspi",
9 "fsl,ls1043a-qspi" followed by "fsl,ls1021a-qspi"
10 - reg : the first contains the register location and length,
11 the second contains the memory mapping address and length
12 - reg-names: Should contain the reg names "QuadSPI" and "QuadSPI-memory"
13 - interrupts : Should contain the interrupt for the device
14 - clocks : The clocks needed by the QuadSPI controller
15 - clock-names : the name of the clocks
18 - fsl,qspi-has-second-chip: The controller has two buses, bus A and bus B.
19 Each bus can be connected with two NOR flashes.
20 Most of the time, each bus only has one NOR flash
21 connected, this is the default case.
22 But if there are two NOR flashes connected to the
23 bus, you should enable this property.
24 (Please check the board's schematic.)
25 - big-endian : That means the IP register is big endian
29 qspi0: quadspi@40044000 {
30 compatible = "fsl,vf610-qspi";
31 reg = <0x40044000 0x1000>, <0x20000000 0x10000000>;
32 reg-names = "QuadSPI", "QuadSPI-memory";
33 interrupts = <0 24 IRQ_TYPE_LEVEL_HIGH>;
34 clocks = <&clks VF610_CLK_QSPI0_EN>,
35 <&clks VF610_CLK_QSPI0>;
36 clock-names = "qspi_en", "qspi";