1/*************************************************************************************** 2* Copyright (c) 2020-2021 Institute of Computing Technology, Chinese Academy of Sciences 3* Copyright (c) 2020-2021 Peng Cheng Laboratory 4* 5* XiangShan is licensed under Mulan PSL v2. 6* You can use this software according to the terms and conditions of the Mulan PSL v2. 7* You may obtain a copy of Mulan PSL v2 at: 8* http://license.coscl.org.cn/MulanPSL2 9* 10* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, 11* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, 12* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. 13* 14* See the Mulan PSL v2 for more details. 15***************************************************************************************/ 16 17package device 18 19import chisel3._ 20import chisel3.util._ 21import difftest.common.DifftestFlash 22import org.chipsalliance.cde.config.Parameters 23import freechips.rocketchip.diplomacy.AddressSet 24 25class AXI4Flash 26( 27 address: Seq[AddressSet] 28)(implicit p: Parameters) 29 extends AXI4SlaveModule(address, executable = false) 30{ 31 32 override lazy val module = new AXI4SlaveModuleImp(this){ 33 def getOffset(addr: UInt) = addr(15,0) 34 35 val flash = DifftestFlash() 36 flash.en := in.ar.fire 37 flash.addr := Cat(0.U(16.W), getOffset(raddr)) 38 39 in.r.bits.data := flash.data 40 } 41} 42