quark_d20xx.c

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// SPDX-License-Identifier: GPL-2.0-or-later
 
/*
 * Copyright(c) 2015-2016 Intel Corporation.
 *
 * Jessica Gomez (jessica.gomez.hernandez@intel.com)
 * Ivan De Cesaris (ivan.de.cesaris@intel.com)
 *
 * Contact Information:
 * Intel Corporation
 */
 
/*
 * @file
 * Debugger for Intel Quark D20xx
 * The CPU TAP (Lakemont TAP) is used for software debug and the CLTAP is
 * used for SoC level operations.
 *
 * Reference document:
 * Intel Quark microcontroller D2000 Debug Operations (web search for doc num 333241)
 */
 
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
 
#include <helper/log.h>
 
#include "target.h"
#include "target_type.h"
#include "breakpoints.h"
#include "lakemont.h"
#include "x86_32_common.h"
 
static int quark_d20xx_target_create(struct target *t, Jim_Interp *interp)
{
    struct x86_32_common *x86_32 = calloc(1, sizeof(struct x86_32_common));
    if (!x86_32) {
        LOG_ERROR("%s out of memory", __func__);
        return ERROR_FAIL;
    }
    x86_32_common_init_arch_info(t, x86_32);
    lakemont_init_arch_info(t, x86_32);
    x86_32->core_type = LMT3_5;
    return ERROR_OK;
}
 
static int quark_d20xx_init_target(struct command_context *cmd_ctx, struct target *t)
{
    return lakemont_init_target(cmd_ctx, t);
}
 
static int quark_d20xx_reset_deassert(struct target *t)
{
    int retval;
 
    /* Can't detect if a warm reset happened while halted but we can make the
     * openocd and target state consistent here if in probe mode already
     */
    if (!check_not_halted(t)) {
        retval = lakemont_update_after_probemode_entry(t);
        if (retval != ERROR_OK) {
            LOG_ERROR("%s core state update fail", __func__);
            return retval;
        }
        /* resume target if reset mode is run */
        if (!t->reset_halt) {
            retval = lakemont_resume(t, 1, 0, 0, 0);
            if (retval != ERROR_OK) {
                LOG_ERROR("%s could not resume target", __func__);
                return retval;
            }
        }
    }
 
    return ERROR_OK;
}
 
struct target_type quark_d20xx_target = {
    .name = "quark_d20xx",
    .target_create = quark_d20xx_target_create,
    .init_target = quark_d20xx_init_target,
    /* lakemont probemode specific code */
    .poll = lakemont_poll,
    .arch_state = lakemont_arch_state,
    .halt = lakemont_halt,
    .resume = lakemont_resume,
    .step = lakemont_step,
    .assert_reset = lakemont_reset_assert,
    .deassert_reset = quark_d20xx_reset_deassert,
    /* common x86 code */
    .commands = x86_32_command_handlers,
    .get_gdb_reg_list = x86_32_get_gdb_reg_list,
    .read_memory = x86_32_common_read_memory,
    .write_memory = x86_32_common_write_memory,
    .add_breakpoint = x86_32_common_add_breakpoint,
    .remove_breakpoint = x86_32_common_remove_breakpoint,
    .add_watchpoint = x86_32_common_add_watchpoint,
    .remove_watchpoint = x86_32_common_remove_watchpoint,
    .virt2phys = x86_32_common_virt2phys,
    .read_phys_memory = x86_32_common_read_phys_mem,
    .write_phys_memory = x86_32_common_write_phys_mem,
    .mmu = x86_32_common_mmu,
};