1Integrated Flash Controller 2 3Properties: 4- name : Should be ifc 5- compatible : should contain "fsl,ifc". The version of the integrated 6 flash controller can be found in the IFC_REV register at 7 offset zero. 8 9- #address-cells : Should be either two or three. The first cell is the 10 chipselect number, and the remaining cells are the 11 offset into the chipselect. 12- #size-cells : Either one or two, depending on how large each chipselect 13 can be. 14- reg : Offset and length of the register set for the device 15- interrupts: IFC may have one or two interrupts. If two interrupt 16 specifiers are present, the first is the "common" 17 interrupt (CM_EVTER_STAT), and the second is the NAND 18 interrupt (NAND_EVTER_STAT). If there is only one, 19 that interrupt reports both types of event. 20 21- little-endian : If this property is absent, the big-endian mode will 22 be in use as default for registers. 23 24- ranges : Each range corresponds to a single chipselect, and covers 25 the entire access window as configured. 26 27Child device nodes describe the devices connected to IFC such as NOR (e.g. 28cfi-flash) and NAND (fsl,ifc-nand). There might be board specific devices 29like FPGAs, CPLDs, etc. 30 31Example: 32 33 ifc@ffe1e000 { 34 compatible = "fsl,ifc", "simple-bus"; 35 #address-cells = <2>; 36 #size-cells = <1>; 37 reg = <0x0 0xffe1e000 0 0x2000>; 38 interrupts = <16 2 19 2>; 39 little-endian; 40 41 /* NOR, NAND Flashes and CPLD on board */ 42 ranges = <0x0 0x0 0x0 0xee000000 0x02000000 43 0x1 0x0 0x0 0xffa00000 0x00010000 44 0x3 0x0 0x0 0xffb00000 0x00020000>; 45 46 flash@0,0 { 47 #address-cells = <1>; 48 #size-cells = <1>; 49 compatible = "cfi-flash"; 50 reg = <0x0 0x0 0x2000000>; 51 bank-width = <2>; 52 device-width = <1>; 53 54 partition@0 { 55 /* 32MB for user data */ 56 reg = <0x0 0x02000000>; 57 label = "NOR Data"; 58 }; 59 }; 60 61 flash@1,0 { 62 #address-cells = <1>; 63 #size-cells = <1>; 64 compatible = "fsl,ifc-nand"; 65 reg = <0x1 0x0 0x10000>; 66 67 partition@0 { 68 /* This location must not be altered */ 69 /* 1MB for u-boot Bootloader Image */ 70 reg = <0x0 0x00100000>; 71 label = "NAND U-Boot Image"; 72 read-only; 73 }; 74 }; 75 76 cpld@3,0 { 77 #address-cells = <1>; 78 #size-cells = <1>; 79 compatible = "fsl,p1010rdb-cpld"; 80 reg = <0x3 0x0 0x000001f>; 81 }; 82 }; 83