30b34b3f2e34f7bd55449d8b3c6fe189b5930cf0
[openocd.git] / src / target / lakemont.h
1 /*
2 * Copyright(c) 2013 Intel Corporation.
3 *
4 * Adrian Burns (adrian.burns@intel.com)
5 * Thomas Faust (thomas.faust@intel.com)
6 * Ivan De Cesaris (ivan.de.cesaris@intel.com)
7 * Julien Carreno (julien.carreno@intel.com)
8 * Jeffrey Maxwell (jeffrey.r.maxwell@intel.com)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
23 *
24 * Contact Information:
25 * Intel Corporation
26 */
27
28 /*
29 * @file
30 * This is the interface to the probemode operations for Lakemont 1 (LMT1).
31 */
32
33 #ifndef LAKEMONT_H
34 #define LAKEMONT_H
35 #include <jtag/jtag.h>
36 #include <helper/types.h>
37
38 /* The Intel Quark SoC X1000 Core is codenamed lakemont */
39
40 #define LMT_IRLEN 8
41
42 /* lakemont tap instruction opcodes */
43 #define IDCODE 2
44 #define SUBMITPIR 3
45 #define PROBEMODE 4
46 #define WRPIR 6
47 #define RDWRPDR 8
48 #define TAPSTATUS 11
49 #define BYPASS 255
50 #define NOT_NULL 2
51
52 /* DR sizes */
53 #define ID_SIZE 32
54 #define PM_SIZE 1
55 #define PIR_SIZE 64
56 #define PDR_SIZE 32
57 #define TS_SIZE 32
58 #define BP_SIZE 1
59 #define MAX_SCAN_SIZE PIR_SIZE
60
61 /* needed during lakemont probemode */
62 #define NOT_PMREG 0xfe
63 #define NOT_AVAIL_REG 0xff
64 #define PM_DSB ((uint32_t)0x00000000)
65 #define PM_DSL ((uint32_t)0xFFFFFFFF)
66 #define PM_DSAR ((uint32_t)0x004F9300)
67 #define PM_DR7 ((uint32_t)0x00000400)
68 #define DELAY_SUBMITPIR 0 /* for now 0 is working */
69
70 /* lakemont tapstatus bits */
71 #define TS_PRDY_BIT ((uint32_t)0x00000001)
72 #define TS_EN_PM_BIT ((uint32_t)0x00000002)
73 #define TS_PM_BIT ((uint32_t)0x00000004)
74 #define TS_PMCR_BIT ((uint32_t)0x00000008)
75 #define TS_SBP_BIT ((uint32_t)0x00000010)
76
77 struct lakemont_core_reg {
78 uint32_t num;
79 struct target *target;
80 struct x86_32_common *x86_32_common;
81 uint64_t op;
82 uint8_t pm_idx;
83 };
84
85 struct scan_blk {
86 uint8_t out[MAX_SCAN_SIZE]; /* scanned out to the tap */
87 uint8_t in[MAX_SCAN_SIZE]; /* in to our capture buf */
88 struct scan_field field;
89 };
90
91 #define I(name) (((struct lakemont_core_reg *)x86_32->cache->reg_list[name].arch_info)->pm_idx)
92
93 int lakemont_init_target(struct command_context *cmd_ctx, struct target *t);
94 int lakemont_init_arch_info(struct target *t, struct x86_32_common *x86_32);
95 int lakemont_poll(struct target *t);
96 int lakemont_arch_state(struct target *t);
97 int lakemont_halt(struct target *t);
98 int lakemont_resume(struct target *t, int current, uint32_t address,
99 int handle_breakpoints, int debug_execution);
100 int lakemont_step(struct target *t, int current,
101 uint32_t address, int handle_breakpoints);
102 int lakemont_reset_assert(struct target *t);
103 int lakemont_reset_deassert(struct target *t);
104
105 #endif /* LAKEMONT_H */