LXR qemu/include/hw/nvram/xlnx-bbram.h

   1/*
   2 * QEMU model of the Xilinx BBRAM Battery Backed RAM
   3 *
   4 * Copyright (c) 2015-2021 Xilinx Inc.
   5 *
   6 * Written by Edgar E. Iglesias <edgari@xilinx.com>
   7 *
   8 * Permission is hereby granted, free of charge, to any person obtaining a copy
   9 * of this software and associated documentation files (the "Software"), to deal
  10 * in the Software without restriction, including without limitation the rights
  11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12 * copies of the Software, and to permit persons to whom the Software is
  13 * furnished to do so, subject to the following conditions:
  14 *
  15 * The above copyright notice and this permission notice shall be included in
  16 * all copies or substantial portions of the Software.
  17 *
  18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24 * THE SOFTWARE.
  25 */
  26#ifndef XLNX_BBRAM_H
  27#define XLNX_BBRAM_H
  28
  29#include "sysemu/block-backend.h"
  30#include "hw/qdev-core.h"
  31#include "hw/irq.h"
  32#include "hw/sysbus.h"
  33#include "hw/register.h"
  34
  35#define RMAX_XLNX_BBRAM ((0x4c / 4) + 1)
  36
  37#define TYPE_XLNX_BBRAM "xlnx,bbram-ctrl"
  38OBJECT_DECLARE_SIMPLE_TYPE(XlnxBBRam, XLNX_BBRAM);
  39
  40struct XlnxBBRam {
  41    SysBusDevice parent_obj;
  42    qemu_irq irq_bbram;
  43
  44    BlockBackend *blk;
  45
  46    uint32_t crc_zpads;
  47    bool bbram8_wo;
  48    bool blk_ro;
  49
  50    uint32_t regs[RMAX_XLNX_BBRAM];
  51    RegisterInfo regs_info[RMAX_XLNX_BBRAM];
  52};
  53
  54#endif
  55