1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2015 Altera Corporation
4 * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
5 *
6 * Based on the code posted by Kazuyasu on the Altera Forum at:
7 * http://www.alteraforum.com/forum/showpost.php?p=77003&postcount=20
8 */
9
10#ifndef _ASM_NIOS2_KGDB_H
11#define _ASM_NIOS2_KGDB_H
12
13#define CACHE_FLUSH_IS_SAFE	1
14#define BUFMAX			2048
15
16enum regnames {
17	GDB_R0 = 0,
18	GDB_AT,
19	GDB_R2,
20	GDB_R3,
21	GDB_R4,
22	GDB_R5,
23	GDB_R6,
24	GDB_R7,
25	GDB_R8,
26	GDB_R9,
27	GDB_R10,
28	GDB_R11,
29	GDB_R12,
30	GDB_R13,
31	GDB_R14,
32	GDB_R15,
33	GDB_R16,
34	GDB_R17,
35	GDB_R18,
36	GDB_R19,
37	GDB_R20,
38	GDB_R21,
39	GDB_R22,
40	GDB_R23,
41	GDB_ET,
42	GDB_BT,
43	GDB_GP,
44	GDB_SP,
45	GDB_FP,
46	GDB_EA,
47	GDB_BA,
48	GDB_RA,
49	GDB_PC,
50	GDB_STATUS,
51	GDB_ESTATUS,
52	GDB_BSTATUS,
53	GDB_IENABLE,
54	GDB_IPENDING,
55	GDB_CPUID,
56	GDB_CTL6,
57	GDB_EXCEPTION,
58	GDB_PTEADDR,
59	GDB_TLBACC,
60	GDB_TLBMISC,
61	GDB_ECCINJ,
62	GDB_BADADDR,
63	GDB_CONFIG,
64	GDB_MPUBASE,
65	GDB_MPUACC,
66	/* do not change the last entry or anything below! */
67	GDB_NUMREGBYTES		/* number of registers */
68};
69
70#define GDB_SIZEOF_REG		sizeof(u32)
71#define DBG_MAX_REG_NUM	(49)
72#define NUMREGBYTES		(DBG_MAX_REG_NUM * sizeof(GDB_SIZEOF_REG))
73
74#define BREAK_INSTR_SIZE	4
75static inline void arch_kgdb_breakpoint(void)
76{
77	__asm__ __volatile__("trap 30\n");
78}
79
80#endif /* _ASM_NIOS2_KGDB_H */
81