1DDR PHY Front End (DPFE) for Broadcom STB 2========================================= 3 4DPFE and the DPFE firmware provide an interface for the host CPU to 5communicate with the DCPU, which resides inside the DDR PHY. 6 7There are three memory regions for interacting with the DCPU. These are 8specified in a single reg property. 9 10Required properties: 11 - compatible: must be "brcm,bcm7271-dpfe-cpu", "brcm,bcm7268-dpfe-cpu" 12 or "brcm,dpfe-cpu" 13 - reg: must reference three register ranges 14 - start address and length of the DCPU register space 15 - start address and length of the DCPU data memory space 16 - start address and length of the DCPU instruction memory space 17 - reg-names: must contain "dpfe-cpu", "dpfe-dmem", and "dpfe-imem"; 18 they must be in the same order as the register declarations 19 20Example: 21 dpfe_cpu0: dpfe-cpu@f1132000 { 22 compatible = "brcm,bcm7271-dpfe-cpu", "brcm,dpfe-cpu"; 23 reg = <0xf1132000 0x180 24 0xf1134000 0x1000 25 0xf1138000 0x4000>; 26 reg-names = "dpfe-cpu", "dpfe-dmem", "dpfe-imem"; 27 }; 28