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 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 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