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