src/target/lakemont.h

   1 /*
   2  * Copyright(c) 2013-2016 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 int lakemont_update_after_probemode_entry(struct target *t);
 105
 106 #endif /* LAKEMONT_H */