1 /***************************************************************************
2 * Copyright (C) 2009 by David Brownell *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
16 ***************************************************************************/
18 #ifndef OPENOCD_TARGET_ARMV7A_H
19 #define OPENOCD_TARGET_ARMV7A_H
21 #include "arm_adi_v5.h"
22 #include "armv7a_cache.h"
24 #include "armv4_5_mmu.h"
25 #include "armv4_5_cache.h"
33 #define ARMV7_COMMON_MAGIC 0x0A450999
35 /* VA to PA translation operations opc2 values*/
44 /* L210/L220 cache controller support */
45 struct armv7a_l2x_cache
{
50 struct armv7a_cachesize
{
51 /* cache dimensionning */
53 uint32_t associativity
;
56 /* info for set way operation on cache */
63 /* information about one architecture cache at any level */
64 struct armv7a_arch_cache
{
65 int ctype
; /* cache type, CLIDR encoding */
66 struct armv7a_cachesize d_u_size
; /* data cache */
67 struct armv7a_cachesize i_size
; /* instruction cache */
70 /* common cache information */
71 struct armv7a_cache_common
{
72 int info
; /* -1 invalid, else valid */
73 int loc
; /* level of coherency */
74 uint32_t dminline
; /* minimum d-cache linelen */
75 uint32_t iminline
; /* minimum i-cache linelen */
76 struct armv7a_arch_cache arch
[6]; /* cache info, L1 - L7 */
78 int d_u_cache_enabled
;
79 int auto_cache_enabled
; /* openocd automatic
81 /* outer unified cache if some */
83 int (*flush_all_data_cache
)(struct target
*target
);
86 struct armv7a_mmu_common
{
87 /* following field mmu working way */
88 int32_t cached
; /* 0: not initialized, 1: initialized */
89 uint32_t ttbcr
; /* cache for ttbcr register */
91 uint32_t ttbr_mask
[2];
92 uint32_t ttbr_range
[2];
94 int (*read_physical_memory
)(struct target
*target
, target_addr_t address
, uint32_t size
,
95 uint32_t count
, uint8_t *buffer
);
96 struct armv7a_cache_common armv7a_cache
;
100 struct armv7a_common
{
103 struct reg_cache
*core_cache
;
105 /* Core Debug Unit */
108 struct adiv5_ap
*debug_ap
;
110 uint8_t multi_processor_system
;
118 uint32_t implementor
;
120 /* cache specific to V7 Memory Management Unit compatible with v4_5*/
121 struct armv7a_mmu_common armv7a_mmu
;
123 int (*examine_debug_reason
)(struct target
*target
);
124 int (*post_debug_entry
)(struct target
*target
);
126 void (*pre_restore_context
)(struct target
*target
);
129 static inline struct armv7a_common
*
130 target_to_armv7a(struct target
*target
)
132 return container_of(target
->arch_info
, struct armv7a_common
, arm
);
135 static inline bool is_armv7a(struct armv7a_common
*armv7a
)
137 return armv7a
->common_magic
== ARMV7_COMMON_MAGIC
;
141 /* register offsets from armv7a.debug_base */
143 /* See ARMv7a arch spec section C10.2 */
144 #define CPUDBG_DIDR 0x000
146 /* See ARMv7a arch spec section C10.3 */
147 #define CPUDBG_WFAR 0x018
148 /* PCSR at 0x084 -or- 0x0a0 -or- both ... based on flags in DIDR */
149 #define CPUDBG_DSCR 0x088
150 #define CPUDBG_DRCR 0x090
151 #define CPUDBG_PRCR 0x310
152 #define CPUDBG_PRSR 0x314
154 /* See ARMv7a arch spec section C10.4 */
155 #define CPUDBG_DTRRX 0x080
156 #define CPUDBG_ITR 0x084
157 #define CPUDBG_DTRTX 0x08c
159 /* See ARMv7a arch spec section C10.5 */
160 #define CPUDBG_BVR_BASE 0x100
161 #define CPUDBG_BCR_BASE 0x140
162 #define CPUDBG_WVR_BASE 0x180
163 #define CPUDBG_WCR_BASE 0x1C0
164 #define CPUDBG_VCR 0x01C
166 /* See ARMv7a arch spec section C10.6 */
167 #define CPUDBG_OSLAR 0x300
168 #define CPUDBG_OSLSR 0x304
169 #define CPUDBG_OSSRR 0x308
170 #define CPUDBG_ECR 0x024
172 /* See ARMv7a arch spec section C10.7 */
173 #define CPUDBG_DSCCR 0x028
174 #define CPUDBG_DSMCR 0x02C
176 /* See ARMv7a arch spec section C10.8 */
177 #define CPUDBG_AUTHSTATUS 0xFB8
179 /* Masks for Vector Catch register */
180 #define DBG_VCR_FIQ_MASK ((1 << 31) | (1 << 7))
181 #define DBG_VCR_IRQ_MASK ((1 << 30) | (1 << 6))
182 #define DBG_VCR_DATA_ABORT_MASK ((1 << 28) | (1 << 4))
183 #define DBG_VCR_PREF_ABORT_MASK ((1 << 27) | (1 << 3))
184 #define DBG_VCR_SVC_MASK ((1 << 26) | (1 << 2))
186 int armv7a_arch_state(struct target
*target
);
187 int armv7a_identify_cache(struct target
*target
);
188 int armv7a_init_arch_info(struct target
*target
, struct armv7a_common
*armv7a
);
190 int armv7a_handle_cache_info_command(struct command_context
*cmd_ctx
,
191 struct armv7a_cache_common
*armv7a_cache
);
192 int armv7a_read_ttbcr(struct target
*target
);
194 extern const struct command_registration armv7a_command_handlers
[];
196 #endif /* OPENOCD_TARGET_ARMV7A_H */
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