1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
27 #include "armv4_5_mmu.h"
30 #define XSCALE_COMMON_MAGIC 0x58534341
32 /* These four JTAG instructions are architecturally defined.
33 * Lengths are core-specific; originally 5 bits, later 7.
35 #define XSCALE_DBGRX 0x02
36 #define XSCALE_DBGTX 0x10
37 #define XSCALE_LDIC 0x07
38 #define XSCALE_SELDCSR 0x09
40 enum xscale_debug_reason
42 XSCALE_DBG_REASON_GENERIC
,
43 XSCALE_DBG_REASON_RESET
,
44 XSCALE_DBG_REASON_TB_FULL
,
47 enum xscale_trace_entry_type
49 XSCALE_TRACE_MESSAGE
= 0x0,
50 XSCALE_TRACE_ADDRESS
= 0x1,
53 typedef struct xscale_trace_entry_s
56 enum xscale_trace_entry_type type
;
57 } xscale_trace_entry_t
;
59 typedef struct xscale_trace_data_s
61 xscale_trace_entry_t
*entries
;
65 uint32_t last_instruction
;
66 struct xscale_trace_data_s
*next
;
67 } xscale_trace_data_t
;
69 typedef struct xscale_trace_s
71 trace_status_t capture_status
; /* current state of capture run */
72 struct image_s
*image
; /* source for target opcodes */
73 xscale_trace_data_t
*data
; /* linked list of collected trace data */
74 int buffer_enabled
; /* whether trace buffer is enabled */
75 int buffer_fill
; /* maximum number of trace runs to read (-1 for wrap-around) */
78 armv4_5_state_t core_state
; /* current core state (ARM, Thumb, Jazelle) */
81 typedef struct xscale_common_s
85 /* XScale registers (CP15, DBG) */
86 reg_cache_t
*reg_cache
;
88 /* current state of the debug handler */
89 uint32_t handler_address
;
91 /* target-endian buffers with exception vectors */
92 uint32_t low_vectors
[8];
93 uint32_t high_vectors
[8];
95 /* static low vectors */
96 uint8_t static_low_vectors_set
; /* bit field with static vectors set by the user */
97 uint8_t static_high_vectors_set
; /* bit field with static vectors set by the user */
98 uint32_t static_low_vectors
[8];
99 uint32_t static_high_vectors
[8];
101 /* DCache cleaning */
102 uint32_t cache_clean_address
;
104 /* whether hold_rst and ext_dbg_break should be set */
106 int external_debug_break
;
108 /* breakpoint / watchpoint handling */
118 uint8_t vector_catch
;
120 xscale_trace_t trace
;
122 int arch_debug_reason
;
124 /* armv4/5 common stuff */
125 armv4_5_common_t armv4_5_common
;
128 armv4_5_mmu_common_t armv4_5_mmu
;
129 uint32_t cp15_control_reg
;
131 /* possible future enhancements that go beyond XScale common stuff */
134 int fast_memory_access
;
137 typedef struct xscale_reg_s
139 int dbg_handler_number
;
145 XSCALE_MAINID
, /* 0 */
155 XSCALE_IBCR0
, /* 10 */
169 #define ERROR_XSCALE_NO_TRACE_DATA (-1500)
171 #endif /* XSCALE_H */
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