include/hw/riscv/shakti_c.h

   1 /*
   2  * Shakti C-class SoC emulation
   3  *
   4  * Copyright (c) 2021 Vijai Kumar K <vijai@behindbytes.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2 or later, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along with
  16  * this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef HW_SHAKTI_C_H
  20 #define HW_SHAKTI_C_H
  21
  22 #include "hw/riscv/riscv_hart.h"
  23 #include "hw/boards.h"
  24 #include "hw/char/shakti_uart.h"
  25
  26 #define TYPE_RISCV_SHAKTI_SOC "riscv.shakti.cclass.soc"
  27 #define RISCV_SHAKTI_SOC(obj) \
  28     OBJECT_CHECK(ShaktiCSoCState, (obj), TYPE_RISCV_SHAKTI_SOC)
  29
  30 typedef struct ShaktiCSoCState {
  31     /*< private >*/
  32     DeviceState parent_obj;
  33
  34     /*< public >*/
  35     RISCVHartArrayState cpus;
  36     DeviceState *plic;
  37     ShaktiUartState uart;
  38     MemoryRegion rom;
  39
  40 } ShaktiCSoCState;
  41
  42 #define TYPE_RISCV_SHAKTI_MACHINE MACHINE_TYPE_NAME("shakti_c")
  43 #define RISCV_SHAKTI_MACHINE(obj) \
  44     OBJECT_CHECK(ShaktiCMachineState, (obj), TYPE_RISCV_SHAKTI_MACHINE)
  45 typedef struct ShaktiCMachineState {
  46     /*< private >*/
  47     MachineState parent_obj;
  48
  49     /*< public >*/
  50     ShaktiCSoCState soc;
  51 } ShaktiCMachineState;
  52
  53 enum {
  54     SHAKTI_C_ROM,
  55     SHAKTI_C_RAM,
  56     SHAKTI_C_UART,
  57     SHAKTI_C_GPIO,
  58     SHAKTI_C_PLIC,
  59     SHAKTI_C_CLINT,
  60     SHAKTI_C_I2C,
  61 };
  62
  63 #define SHAKTI_C_PLIC_HART_CONFIG "MS"
  64 /* Including Interrupt ID 0 (no interrupt)*/
  65 #define SHAKTI_C_PLIC_NUM_SOURCES 28
  66 /* Excluding Priority 0 */
  67 #define SHAKTI_C_PLIC_NUM_PRIORITIES 2
  68 #define SHAKTI_C_PLIC_PRIORITY_BASE 0x00
  69 #define SHAKTI_C_PLIC_PENDING_BASE 0x1000
  70 #define SHAKTI_C_PLIC_ENABLE_BASE 0x2000
  71 #define SHAKTI_C_PLIC_ENABLE_STRIDE 0x80
  72 #define SHAKTI_C_PLIC_CONTEXT_BASE 0x200000
  73 #define SHAKTI_C_PLIC_CONTEXT_STRIDE 0x1000
  74
  75 #endif