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, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
18 ***************************************************************************/
23 #include "arm_adi_v5.h"
24 #include "armv7a_cache.h"
26 #include "armv4_5_mmu.h"
27 #include "armv4_5_cache.h"
35 #define ARMV7_COMMON_MAGIC 0x0A450999
37 /* VA to PA translation operations opc2 values*/
46 /* L210/L220 cache controller support */
47 struct armv7a_l2x_cache {
52 struct armv7a_cachesize {
54 /* cache dimensionning */
56 uint32_t associativity;
59 /* info for set way operation on cache */
66 struct armv7a_cache_common {
68 struct armv7a_cachesize d_u_size; /* data cache */
69 struct armv7a_cachesize i_size; /* instruction cache */
70 uint32_t dminline; /* minimum d-cache linelen */
71 uint32_t iminline; /* minimum i-cache linelen */
73 int d_u_cache_enabled;
74 int auto_cache_enabled; /* openocd automatic
76 /* l2 external unified cache if some */
78 int (*flush_all_data_cache)(struct target *target);
79 int (*display_cache_info)(struct command_context *cmd_ctx,
80 struct armv7a_cache_common *armv7a_cache);
83 struct armv7a_mmu_common {
84 /* following field mmu working way */
85 int32_t cached; /* 0: not initialized, 1: initialized */
86 uint32_t ttbcr; /* cache for ttbcr register */
87 uint32_t ttbr_mask[2];
88 uint32_t ttbr_range[2];
91 int (*read_physical_memory)(struct target *target, uint32_t address, uint32_t size,
92 uint32_t count, uint8_t *buffer);
93 struct armv7a_cache_common armv7a_cache;
97 struct armv7a_common {
100 struct reg_cache *core_cache;
102 struct adiv5_dap dap;
104 /* Core Debug Unit */
109 bool memory_ap_available;
111 uint8_t multi_processor_system;
119 uint32_t implementor;
121 /* cache specific to V7 Memory Management Unit compatible with v4_5*/
122 struct armv7a_mmu_common armv7a_mmu;
124 int (*examine_debug_reason)(struct target *target);
125 int (*post_debug_entry)(struct target *target);
127 void (*pre_restore_context)(struct target *target);
130 static inline struct armv7a_common *
131 target_to_armv7a(struct target *target)
133 return container_of(target->arch_info, struct armv7a_common, arm);
136 /* register offsets from armv7a.debug_base */
138 /* See ARMv7a arch spec section C10.2 */
139 #define CPUDBG_DIDR 0x000
141 /* See ARMv7a arch spec section C10.3 */
142 #define CPUDBG_WFAR 0x018
143 /* PCSR at 0x084 -or- 0x0a0 -or- both ... based on flags in DIDR */
144 #define CPUDBG_DSCR 0x088
145 #define CPUDBG_DRCR 0x090
146 #define CPUDBG_PRCR 0x310
147 #define CPUDBG_PRSR 0x314
149 /* See ARMv7a arch spec section C10.4 */
150 #define CPUDBG_DTRRX 0x080
151 #define CPUDBG_ITR 0x084
152 #define CPUDBG_DTRTX 0x08c
154 /* See ARMv7a arch spec section C10.5 */
155 #define CPUDBG_BVR_BASE 0x100
156 #define CPUDBG_BCR_BASE 0x140
157 #define CPUDBG_WVR_BASE 0x180
158 #define CPUDBG_WCR_BASE 0x1C0
159 #define CPUDBG_VCR 0x01C
161 /* See ARMv7a arch spec section C10.6 */
162 #define CPUDBG_OSLAR 0x300
163 #define CPUDBG_OSLSR 0x304
164 #define CPUDBG_OSSRR 0x308
165 #define CPUDBG_ECR 0x024
167 /* See ARMv7a arch spec section C10.7 */
168 #define CPUDBG_DSCCR 0x028
170 /* See ARMv7a arch spec section C10.8 */
171 #define CPUDBG_AUTHSTATUS 0xFB8
173 int armv7a_arch_state(struct target *target);
174 int armv7a_identify_cache(struct target *target);
175 int armv7a_init_arch_info(struct target *target, struct armv7a_common *armv7a);
176 int armv7a_mmu_translate_va_pa(struct target *target, uint32_t va,
177 uint32_t *val, int meminfo);
178 int armv7a_mmu_translate_va(struct target *target, uint32_t va, uint32_t *val);
180 int armv7a_handle_cache_info_command(struct command_context *cmd_ctx,
181 struct armv7a_cache_common *armv7a_cache);
183 extern const struct command_registration armv7a_command_handlers[];
185 #endif /* ARMV4_5_H */