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 /* Possible CPU types */
41 #define XSCALE_IXP4XX_PXA2XX 0x0
42 #define XSCALE_PXA3XX 0x4
44 enum xscale_debug_reason
46 XSCALE_DBG_REASON_GENERIC
,
47 XSCALE_DBG_REASON_RESET
,
48 XSCALE_DBG_REASON_TB_FULL
,
51 enum xscale_trace_entry_type
53 XSCALE_TRACE_MESSAGE
= 0x0,
54 XSCALE_TRACE_ADDRESS
= 0x1,
57 struct xscale_trace_entry
60 enum xscale_trace_entry_type type
;
63 struct xscale_trace_data
65 struct xscale_trace_entry
*entries
;
69 uint32_t last_instruction
;
70 unsigned int num_checkpoints
;
71 struct xscale_trace_data
*next
;
76 XSCALE_TRACE_DISABLED
,
83 struct image
*image
; /* source for target opcodes */
84 struct xscale_trace_data
*data
; /* linked list of collected trace data */
85 int buffer_fill
; /* maximum number of trace runs to read */
86 int fill_counter
; /* running count during trace collection */
88 enum arm_state core_state
; /* current core state (ARM, Thumb) */
93 /* armv4/5 common stuff */
94 struct arm armv4_5_common
;
98 /* XScale registers (CP15, DBG) */
99 struct reg_cache
*reg_cache
;
101 /* current state of the debug handler */
102 uint32_t handler_address
;
104 /* target-endian buffers with exception vectors */
105 uint32_t low_vectors
[8];
106 uint32_t high_vectors
[8];
108 /* static low vectors */
109 uint8_t static_low_vectors_set
; /* bit field with static vectors set by the user */
110 uint8_t static_high_vectors_set
; /* bit field with static vectors set by the user */
111 uint32_t static_low_vectors
[8];
112 uint32_t static_high_vectors
[8];
114 /* DCache cleaning */
115 uint32_t cache_clean_address
;
117 /* whether hold_rst and ext_dbg_break should be set */
119 int external_debug_break
;
121 /* breakpoint / watchpoint handling */
131 uint8_t vector_catch
;
133 struct xscale_trace trace
;
135 int arch_debug_reason
;
138 struct armv4_5_mmu_common armv4_5_mmu
;
139 uint32_t cp15_control_reg
;
141 int fast_memory_access
;
147 static inline struct xscale_common
*
148 target_to_xscale(struct target
*target
)
150 return container_of(target
->arch_info
, struct xscale_common
,
156 int dbg_handler_number
;
157 struct target
*target
;
162 XSCALE_MAINID
, /* 0 */
172 XSCALE_IBCR0
, /* 10 */
186 #define ERROR_XSCALE_NO_TRACE_DATA (-700)
188 #endif /* XSCALE_H */