1* NXP Flex Serial Peripheral Interface (FSPI) 2 3Required properties: 4 - compatible : Should be "nxp,lx2160a-fspi" 5 "nxp,imx8qxp-fspi" 6 "nxp,imx8mm-fspi" 7 "nxp,imx8mp-fspi" 8 "nxp,imx8dxl-fspi" 9 10 - reg : First contains the register location and length, 11 Second contains the memory mapping address and length 12 - reg-names : Should contain the resource reg names: 13 - fspi_base: configuration register address space 14 - fspi_mmap: memory mapped address space 15 - interrupts : Should contain the interrupt for the device 16 17Required SPI slave node properties: 18 - reg : There are two buses (A and B) with two chip selects each. 19 This encodes to which bus and CS the flash is connected: 20 - <0>: Bus A, CS 0 21 - <1>: Bus A, CS 1 22 - <2>: Bus B, CS 0 23 - <3>: Bus B, CS 1 24 25Example showing the usage of two SPI NOR slave devices on bus A: 26 27fspi0: spi@20c0000 { 28 compatible = "nxp,lx2160a-fspi"; 29 reg = <0x0 0x20c0000 0x0 0x10000>, <0x0 0x20000000 0x0 0x10000000>; 30 reg-names = "fspi_base", "fspi_mmap"; 31 interrupts = <0 25 0x4>; /* Level high type */ 32 clocks = <&clockgen 4 3>, <&clockgen 4 3>; 33 clock-names = "fspi_en", "fspi"; 34 35 mt35xu512aba0: flash@0 { 36 reg = <0>; 37 .... 38 }; 39 40 mt35xu512aba1: flash@1 { 41 reg = <1>; 42 .... 43 }; 44}; 45