1*4882a593Smuzhiyun-------------------------------------------------------------------------- 2*4882a593Smuzhiyun= Zynq UltraScale+ MPSoC nvmem firmware driver binding = 3*4882a593Smuzhiyun-------------------------------------------------------------------------- 4*4882a593SmuzhiyunThe nvmem_firmware node provides access to the hardware related data 5*4882a593Smuzhiyunlike soc revision, IDCODE... etc, By using the firmware interface. 6*4882a593Smuzhiyun 7*4882a593SmuzhiyunRequired properties: 8*4882a593Smuzhiyun- compatible: should be "xlnx,zynqmp-nvmem-fw" 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun= Data cells = 11*4882a593SmuzhiyunAre child nodes of silicon id, bindings of which as described in 12*4882a593Smuzhiyunbindings/nvmem/nvmem.txt 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun------- 15*4882a593Smuzhiyun Example 16*4882a593Smuzhiyun------- 17*4882a593Smuzhiyunfirmware { 18*4882a593Smuzhiyun zynqmp_firmware: zynqmp-firmware { 19*4882a593Smuzhiyun compatible = "xlnx,zynqmp-firmware"; 20*4882a593Smuzhiyun method = "smc"; 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun nvmem_firmware { 23*4882a593Smuzhiyun compatible = "xlnx,zynqmp-nvmem-fw"; 24*4882a593Smuzhiyun #address-cells = <1>; 25*4882a593Smuzhiyun #size-cells = <1>; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun /* Data cells */ 28*4882a593Smuzhiyun soc_revision: soc_revision { 29*4882a593Smuzhiyun reg = <0x0 0x4>; 30*4882a593Smuzhiyun }; 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun }; 33*4882a593Smuzhiyun}; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun= Data consumers = 36*4882a593SmuzhiyunAre device nodes which consume nvmem data cells. 37*4882a593Smuzhiyun 38*4882a593SmuzhiyunFor example: 39*4882a593Smuzhiyun pcap { 40*4882a593Smuzhiyun ... 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun nvmem-cells = <&soc_revision>; 43*4882a593Smuzhiyun nvmem-cell-names = "soc_revision"; 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun ... 46*4882a593Smuzhiyun }; 47