LXR qemu/include/hw/riscv/shakti

   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_H
  20#define HW_SHAKTI_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
  30typedef 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)
  45typedef struct ShaktiCMachineState {
  46    /*< private >*/
  47    MachineState parent_obj;
  48
  49    /*< public >*/
  50    ShaktiCSoCState soc;
  51} ShaktiCMachineState;
  52
  53enum {
  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 0x04
  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
  76