1 /* 2 * SiFive CLINT (Core Local Interruptor) interface 3 * 4 * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu 5 * Copyright (c) 2017 SiFive, Inc. 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms and conditions of the GNU General Public License, 9 * version 2 or later, as published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 * You should have received a copy of the GNU General Public License along with 17 * this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef HW_SIFIVE_CLINT_H 21 #define HW_SIFIVE_CLINT_H 22 23 #include "hw/sysbus.h" 24 25 #define TYPE_SIFIVE_CLINT "riscv.sifive.clint" 26 27 #define SIFIVE_CLINT(obj) \ 28 OBJECT_CHECK(SiFiveCLINTState, (obj), TYPE_SIFIVE_CLINT) 29 30 typedef struct SiFiveCLINTState { 31 /*< private >*/ 32 SysBusDevice parent_obj; 33 34 /*< public >*/ 35 MemoryRegion mmio; 36 uint32_t hartid_base; 37 uint32_t num_harts; 38 uint32_t sip_base; 39 uint32_t timecmp_base; 40 uint32_t time_base; 41 uint32_t aperture_size; 42 uint32_t timebase_freq; 43 qemu_irq *timer_irqs; 44 qemu_irq *soft_irqs; 45 } SiFiveCLINTState; 46 47 DeviceState *sifive_clint_create(hwaddr addr, hwaddr size, 48 uint32_t hartid_base, uint32_t num_harts, uint32_t sip_base, 49 uint32_t timecmp_base, uint32_t time_base, uint32_t timebase_freq, 50 bool provide_rdtime); 51 52 enum { 53 SIFIVE_SIP_BASE = 0x0, 54 SIFIVE_TIMECMP_BASE = 0x4000, 55 SIFIVE_TIME_BASE = 0xBFF8 56 }; 57 58 enum { 59 SIFIVE_CLINT_TIMEBASE_FREQ = 10000000 60 }; 61 62 #endif 63