1 /*
2 * Copyright(c) 2015-2016 Intel Corporation.
3 *
4 * Jessica Gomez (jessica.gomez.hernandez@intel.com)
5 * Ivan De Cesaris (ivan.de.cesaris@intel.com)
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 *
20 * Contact Information:
21 * Intel Corporation
22 */
23
24 /*
25 * @file
26 * Debugger for Intel Quark D20xx
27 * The CPU TAP (Lakemont TAP) is used for software debug and the CLTAP is
28 * used for SoC level operations.
29 *
30 * Reference document:
31 * Intel Quark microcontroller D2000 Debug Operations (web search for doc num 333241)
32 */
33
34 #ifdef HAVE_CONFIG_H
35 #include "config.h"
36 #endif
37
38 #include <helper/log.h>
39
40 #include "target.h"
41 #include "target_type.h"
42 #include "breakpoints.h"
43 #include "lakemont.h"
44 #include "x86_32_common.h"
45
quark_d20xx_target_create(struct target * t,Jim_Interp * interp)46 static int quark_d20xx_target_create(struct target *t, Jim_Interp *interp)
47 {
48 struct x86_32_common *x86_32 = calloc(1, sizeof(struct x86_32_common));
49 if (x86_32 == NULL) {
50 LOG_ERROR("%s out of memory", __func__);
51 return ERROR_FAIL;
52 }
53 x86_32_common_init_arch_info(t, x86_32);
54 lakemont_init_arch_info(t, x86_32);
55 x86_32->core_type = LMT3_5;
56 return ERROR_OK;
57 }
58
quark_d20xx_init_target(struct command_context * cmd_ctx,struct target * t)59 static int quark_d20xx_init_target(struct command_context *cmd_ctx, struct target *t)
60 {
61 return lakemont_init_target(cmd_ctx, t);
62 }
63
quark_d20xx_reset_deassert(struct target * t)64 static int quark_d20xx_reset_deassert(struct target *t)
65 {
66 int retval;
67
68 /* Can't detect if a warm reset happened while halted but we can make the
69 * openocd and target state consistent here if in probe mode already
70 */
71 if (!check_not_halted(t)) {
72 retval = lakemont_update_after_probemode_entry(t);
73 if (retval != ERROR_OK) {
74 LOG_ERROR("%s core state update fail", __func__);
75 return retval;
76 }
77 /* resume target if reset mode is run */
78 if (!t->reset_halt) {
79 retval = lakemont_resume(t, 1, 0, 0, 0);
80 if (retval != ERROR_OK) {
81 LOG_ERROR("%s could not resume target", __func__);
82 return retval;
83 }
84 }
85 }
86
87 return ERROR_OK;
88 }
89
90 struct target_type quark_d20xx_target = {
91 .name = "quark_d20xx",
92 .target_create = quark_d20xx_target_create,
93 .init_target = quark_d20xx_init_target,
94 /* lakemont probemode specific code */
95 .poll = lakemont_poll,
96 .arch_state = lakemont_arch_state,
97 .halt = lakemont_halt,
98 .resume = lakemont_resume,
99 .step = lakemont_step,
100 .assert_reset = lakemont_reset_assert,
101 .deassert_reset = quark_d20xx_reset_deassert,
102 /* common x86 code */
103 .commands = x86_32_command_handlers,
104 .get_gdb_reg_list = x86_32_get_gdb_reg_list,
105 .read_memory = x86_32_common_read_memory,
106 .write_memory = x86_32_common_write_memory,
107 .add_breakpoint = x86_32_common_add_breakpoint,
108 .remove_breakpoint = x86_32_common_remove_breakpoint,
109 .add_watchpoint = x86_32_common_add_watchpoint,
110 .remove_watchpoint = x86_32_common_remove_watchpoint,
111 .virt2phys = x86_32_common_virt2phys,
112 .read_phys_memory = x86_32_common_read_phys_mem,
113 .write_phys_memory = x86_32_common_write_phys_mem,
114 .mmu = x86_32_common_mmu,
115 };
116