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 typedef struct xscale_jtag_s
34 /* position in JTAG scan chain */
37 /* IR length and instructions */
45 enum xscale_debug_reason
47 XSCALE_DBG_REASON_GENERIC
,
48 XSCALE_DBG_REASON_RESET
,
49 XSCALE_DBG_REASON_TB_FULL
,
52 enum xscale_trace_entry_type
54 XSCALE_TRACE_MESSAGE
= 0x0,
55 XSCALE_TRACE_ADDRESS
= 0x1,
58 typedef struct xscale_trace_entry_s
61 enum xscale_trace_entry_type type
;
62 } xscale_trace_entry_t
;
64 typedef struct xscale_trace_data_s
66 xscale_trace_entry_t
*entries
;
71 struct xscale_trace_data_s
*next
;
72 } xscale_trace_data_t
;
74 typedef struct xscale_trace_s
76 trace_status_t capture_status
; /* current state of capture run */
77 struct image_s
*image
; /* source for target opcodes */
78 xscale_trace_data_t
*data
; /* linked list of collected trace data */
79 int buffer_enabled
; /* whether trace buffer is enabled */
80 int buffer_fill
; /* maximum number of trace runs to read (-1 for wrap-around) */
83 armv4_5_state_t core_state
; /* current core state (ARM, Thumb, Jazelle) */
86 typedef struct xscale_common_s
90 /* XScale registers (CP15, DBG) */
91 reg_cache_t
*reg_cache
;
93 /* pxa250, pxa255, pxa27x, ixp42x, ... */
96 xscale_jtag_t jtag_info
;
98 /* current state of the debug handler */
99 int handler_installed
;
103 /* target-endian buffers with exception vectors */
107 /* static low vectors */
108 u8 static_low_vectors_set
; /* bit field with static vectors set by the user */
109 u8 static_high_vectors_set
; /* bit field with static vectors set by the user */
110 u32 static_low_vectors
[8];
111 u32 static_high_vectors
[8];
113 /* DCache cleaning */
114 u32 cache_clean_address
;
116 /* whether hold_rst and ext_dbg_break should be set */
118 int external_debug_break
;
120 /* breakpoint / watchpoint handling */
132 xscale_trace_t trace
;
134 int arch_debug_reason
;
136 /* armv4/5 common stuff */
137 armv4_5_common_t armv4_5_common
;
140 armv4_5_mmu_common_t armv4_5_mmu
;
141 u32 cp15_control_reg
;
143 /* possible future enhancements that go beyond XScale common stuff */
146 int fast_memory_access
;
149 typedef struct xscale_reg_s
151 int dbg_handler_number
;
157 XSCALE_MAINID
, /* 0 */
167 XSCALE_IBCR0
, /* 10 */
181 #define ERROR_XSCALE_NO_TRACE_DATA (-1500)
183 #endif /* XSCALE_H */
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