include/hw/misc/allwinner-a10-dramc.h

   1 /*
   2  * Allwinner A10 DRAM Controller emulation
   3  *
   4  * Copyright (C) 2022 Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
   5  *
   6  *  This file is derived from Allwinner H3 DRAMC,
   7  *  by Niek Linnenbank.
   8  *
   9  * This program is free software: you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation, either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #ifndef HW_MISC_ALLWINNER_A10_DRAMC_H
  24 #define HW_MISC_ALLWINNER_A10_DRAMC_H
  25
  26 #include "qom/object.h"
  27 #include "hw/sysbus.h"
  28 #include "hw/register.h"
  29
  30 /**
  31  * @name Constants
  32  * @{
  33  */
  34
  35 /** Size of register I/O address space used by DRAMC device */
  36 #define AW_A10_DRAMC_IOSIZE        (0x1000)
  37
  38 /** Total number of known registers */
  39 #define AW_A10_DRAMC_REGS_NUM      (AW_A10_DRAMC_IOSIZE / sizeof(uint32_t))
  40
  41 /** @} */
  42
  43 /**
  44  * @name Object model
  45  * @{
  46  */
  47
  48 #define TYPE_AW_A10_DRAMC    "allwinner-a10-dramc"
  49 OBJECT_DECLARE_SIMPLE_TYPE(AwA10DramControllerState, AW_A10_DRAMC)
  50
  51 /** @} */
  52
  53 /**
  54  * Allwinner A10 DRAMC object instance state.
  55  */
  56 struct AwA10DramControllerState {
  57     /*< private >*/
  58     SysBusDevice parent_obj;
  59     /*< public >*/
  60
  61     /** Maps I/O registers in physical memory */
  62     MemoryRegion iomem;
  63
  64     /** Array of hardware registers */
  65     uint32_t regs[AW_A10_DRAMC_REGS_NUM];
  66 };
  67
  68 #endif /* HW_MISC_ALLWINNER_A10_DRAMC_H */