lakemont.h

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
/*
 * Copyright(c) 2013-2016 Intel Corporation.
 *
 * Adrian Burns (adrian.burns@intel.com)
 * Thomas Faust (thomas.faust@intel.com)
 * Ivan De Cesaris (ivan.de.cesaris@intel.com)
 * Julien Carreno (julien.carreno@intel.com)
 * Jeffrey Maxwell (jeffrey.r.maxwell@intel.com)
 *
 * Contact Information:
 * Intel Corporation
 */
 
/*
 * @file
 * This is the interface to the probemode operations for Lakemont 1 (LMT1).
 */
 
#ifndef OPENOCD_TARGET_LAKEMONT_H
#define OPENOCD_TARGET_LAKEMONT_H
 
#include <jtag/jtag.h>
#include <helper/types.h>
 
/* The Intel Quark SoC X1000 Core is codenamed lakemont */
 
#define LMT_IRLEN       8
 
/* lakemont tap instruction opcodes */
#define IDCODE          2
#define SUBMITPIR       3
#define PROBEMODE       4
#define WRPIR           6
#define RDWRPDR         8
#define TAPSTATUS       11
#define BYPASS          255
#define NOT_NULL        2
 
/* DR sizes */
#define ID_SIZE         32
#define PM_SIZE         1
#define PIR_SIZE        64
#define PDR_SIZE        32
#define TS_SIZE         32
#define BP_SIZE         1
#define MAX_SCAN_SIZE   PIR_SIZE
 
/* needed during lakemont probemode */
#define NOT_PMREG       0xfe
#define NOT_AVAIL_REG       0xff
#define PM_DSB          ((uint32_t)0x00000000)
#define PM_DSL          ((uint32_t)0xFFFFFFFF)
#define PM_DSAR         ((uint32_t)0x004F9300)
#define PM_DR7          ((uint32_t)0x00000400)
#define DELAY_SUBMITPIR     0 /* for now 0 is working */
 
/* lakemont tapstatus bits */
#define TS_PRDY_BIT     ((uint32_t)0x00000001)
#define TS_EN_PM_BIT        ((uint32_t)0x00000002)
#define TS_PM_BIT       ((uint32_t)0x00000004)
#define TS_PMCR_BIT     ((uint32_t)0x00000008)
#define TS_SBP_BIT      ((uint32_t)0x00000010)
 
struct lakemont_core_reg {
    uint32_t num;
    struct target *target;
    struct x86_32_common *x86_32_common;
    uint64_t op;
    uint8_t pm_idx;
};
 
struct scan_blk {
    uint8_t out[MAX_SCAN_SIZE]; /* scanned out to the tap */
    uint8_t in[MAX_SCAN_SIZE]; /* in to our capture buf */
    struct scan_field field;
};
 
#define I(name) (((struct lakemont_core_reg *)x86_32->cache->reg_list[name].arch_info)->pm_idx)
 
int lakemont_init_target(struct command_context *cmd_ctx, struct target *t);
int lakemont_init_arch_info(struct target *t, struct x86_32_common *x86_32);
int lakemont_poll(struct target *t);
int lakemont_arch_state(struct target *t);
int lakemont_halt(struct target *t);
int lakemont_resume(struct target *t, int current, target_addr_t address,
            int handle_breakpoints, int debug_execution);
int lakemont_step(struct target *t, int current,
            target_addr_t address, int handle_breakpoints);
int lakemont_reset_assert(struct target *t);
int lakemont_reset_deassert(struct target *t);
int lakemont_update_after_probemode_entry(struct target *t);
 
#endif /* OPENOCD_TARGET_LAKEMONT_H */