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1c77c410 MC |
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 | #define TYPE_SIFIVE_CLINT "riscv.sifive.clint" | |
24 | ||
25 | #define SIFIVE_CLINT(obj) \ | |
26 | OBJECT_CHECK(SiFiveCLINTState, (obj), TYPE_SIFIVE_CLINT) | |
27 | ||
28 | typedef struct SiFiveCLINTState { | |
29 | /*< private >*/ | |
30 | SysBusDevice parent_obj; | |
31 | ||
32 | /*< public >*/ | |
33 | MemoryRegion mmio; | |
34 | uint32_t num_harts; | |
35 | uint32_t sip_base; | |
36 | uint32_t timecmp_base; | |
37 | uint32_t time_base; | |
38 | uint32_t aperture_size; | |
39 | } SiFiveCLINTState; | |
40 | ||
41 | DeviceState *sifive_clint_create(hwaddr addr, hwaddr size, uint32_t num_harts, | |
42 | uint32_t sip_base, uint32_t timecmp_base, uint32_t time_base); | |
43 | ||
44 | enum { | |
45 | SIFIVE_SIP_BASE = 0x0, | |
46 | SIFIVE_TIMECMP_BASE = 0x4000, | |
47 | SIFIVE_TIME_BASE = 0xBFF8 | |
48 | }; | |
49 | ||
2a8756ed MC |
50 | enum { |
51 | SIFIVE_CLINT_TIMEBASE_FREQ = 10000000 | |
52 | }; | |
53 | ||
1c77c410 | 54 | #endif |