1 /***************************************************************************
2 * Copyright (C) 2018 by Square, Inc. *
3 * Steven Stallion <stallion@squareup.com> *
4 * James Zhao <hjz@squareup.com> *
6 * This program is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
11 * This program is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
14 * GNU General Public License for more details. *
16 * You should have received a copy of the GNU General Public License *
17 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
18 ***************************************************************************/
20 #ifndef OPENOCD_TARGET_ESIRISC_H
21 #define OPENOCD_TARGET_ESIRISC_H
23 #include <helper/types.h>
24 #include <target/breakpoints.h>
25 #include <target/register.h>
26 #include <target/target.h>
28 #include "esirisc_jtag.h"
29 #include "esirisc_regs.h"
30 #include "esirisc_trace.h"
32 #define MAX_BREAKPOINTS 8
33 #define MAX_WATCHPOINTS 8
36 #define EID_RESET 0x00
37 #define EID_HARDWARE_FAILURE 0x01
39 #define EID_INST_BREAKPOINT 0x03
40 #define EID_DATA_BREAKPOINT 0x04
41 #define EID_UNSUPPORTED 0x05
42 #define EID_PRIVILEGE_VIOLATION 0x06
43 #define EID_INST_BUS_ERROR 0x07
44 #define EID_DATA_BUS_ERROR 0x08
45 #define EID_ALIGNMENT_ERROR 0x09
46 #define EID_ARITHMETIC_ERROR 0x0a
47 #define EID_SYSTEM_CALL 0x0b
48 #define EID_MEMORY_MANAGEMENT 0x0c
49 #define EID_UNRECOVERABLE 0x0d
50 #define EID_INTERRUPTn 0x20
52 /* Exception Entry Points */
53 #define ENTRY_RESET 0x00
54 #define ENTRY_UNRECOVERABLE 0x01
55 #define ENTRY_HARDWARE_FAILURE 0x02
56 #define ENTRY_RUNTIME 0x03
57 #define ENTRY_MEMORY 0x04
58 #define ENTRY_SYSCALL 0x05
59 #define ENTRY_DEBUG 0x06
60 #define ENTRY_NMI 0x07
61 #define ENTRY_INTERRUPTn 0x08
63 /* Hardware Debug Control */
64 #define HWDC_R (1<<4) /* Reset & Hardware Failure */
65 #define HWDC_I (1<<3) /* Interrupts */
66 #define HWDC_S (1<<2) /* System Calls */
67 #define HWDC_E (1<<1) /* Program Errors */
68 #define HWDC_D (1<<0) /* Debug Exceptions */
71 ESIRISC_CACHE_VON_NEUMANN
,
72 ESIRISC_CACHE_HARVARD
,
75 struct esirisc_common
{
76 struct target
*target
;
77 struct esirisc_jtag jtag_info
;
78 enum esirisc_cache cache_arch
;
81 struct reg_cache
*reg_cache
;
96 struct breakpoint
*breakpoints_p
[MAX_BREAKPOINTS
];
99 struct watchpoint
*watchpoints_p
[MAX_WATCHPOINTS
];
101 struct esirisc_trace trace_info
;
104 union esirisc_memory
{
111 struct esirisc_common
*esirisc
;
116 int (*read
)(struct reg
*reg
);
117 int (*write
)(struct reg
*reg
);
120 static inline struct esirisc_common
*target_to_esirisc(struct target
*target
)
122 return (struct esirisc_common
*)target
->arch_info
;
125 static inline char *esirisc_cache_arch_name(struct esirisc_common
*esirisc
)
127 return esirisc
->cache_arch
== ESIRISC_CACHE_HARVARD
? "harvard" : "von_neumann";
130 static inline bool esirisc_has_cache(struct esirisc_common
*esirisc
)
132 return esirisc
->has_icache
|| esirisc
->has_dcache
;
135 #endif /* OPENOCD_TARGET_ESIRISC_H */
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