+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* ESP32-S2 target for OpenOCD *
* Copyright (C) 2019 Espressif Systems Ltd. *
- * Author: Alexey Gerenkov <alexey@espressif.com> *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "assert.h"
#include <target/target.h>
#include <target/target_type.h>
+#include <target/semihosting_common.h>
#include "esp_xtensa.h"
-#include "esp32s2.h"
+#include "esp_xtensa_semihosting.h"
/* Overall memory map
* TODO: read memory configuration from target registers */
#define ESP32_S2_DR_REG_UART_BASE 0x3f400000
#define ESP32_S2_REG_UART_BASE(i) (ESP32_S2_DR_REG_UART_BASE + (i) * 0x10000)
#define ESP32_S2_UART_DATE_REG(i) (ESP32_S2_REG_UART_BASE(i) + 0x74)
-
-/* this should map local reg IDs to GDB reg mapping as defined in xtensa-config.c 'rmap' in
- * xtensa-overlay */
-static const unsigned int esp32s2_gdb_regs_mapping[ESP32_S2_NUM_REGS] = {
- XT_REG_IDX_PC,
- XT_REG_IDX_AR0, XT_REG_IDX_AR1, XT_REG_IDX_AR2, XT_REG_IDX_AR3,
- XT_REG_IDX_AR4, XT_REG_IDX_AR5, XT_REG_IDX_AR6, XT_REG_IDX_AR7,
- XT_REG_IDX_AR8, XT_REG_IDX_AR9, XT_REG_IDX_AR10, XT_REG_IDX_AR11,
- XT_REG_IDX_AR12, XT_REG_IDX_AR13, XT_REG_IDX_AR14, XT_REG_IDX_AR15,
- XT_REG_IDX_AR16, XT_REG_IDX_AR17, XT_REG_IDX_AR18, XT_REG_IDX_AR19,
- XT_REG_IDX_AR20, XT_REG_IDX_AR21, XT_REG_IDX_AR22, XT_REG_IDX_AR23,
- XT_REG_IDX_AR24, XT_REG_IDX_AR25, XT_REG_IDX_AR26, XT_REG_IDX_AR27,
- XT_REG_IDX_AR28, XT_REG_IDX_AR29, XT_REG_IDX_AR30, XT_REG_IDX_AR31,
- XT_REG_IDX_AR32, XT_REG_IDX_AR33, XT_REG_IDX_AR34, XT_REG_IDX_AR35,
- XT_REG_IDX_AR36, XT_REG_IDX_AR37, XT_REG_IDX_AR38, XT_REG_IDX_AR39,
- XT_REG_IDX_AR40, XT_REG_IDX_AR41, XT_REG_IDX_AR42, XT_REG_IDX_AR43,
- XT_REG_IDX_AR44, XT_REG_IDX_AR45, XT_REG_IDX_AR46, XT_REG_IDX_AR47,
- XT_REG_IDX_AR48, XT_REG_IDX_AR49, XT_REG_IDX_AR50, XT_REG_IDX_AR51,
- XT_REG_IDX_AR52, XT_REG_IDX_AR53, XT_REG_IDX_AR54, XT_REG_IDX_AR55,
- XT_REG_IDX_AR56, XT_REG_IDX_AR57, XT_REG_IDX_AR58, XT_REG_IDX_AR59,
- XT_REG_IDX_AR60, XT_REG_IDX_AR61, XT_REG_IDX_AR62, XT_REG_IDX_AR63,
- XT_REG_IDX_SAR,
- XT_REG_IDX_WINDOWBASE, XT_REG_IDX_WINDOWSTART, XT_REG_IDX_CONFIGID0, XT_REG_IDX_CONFIGID1,
- XT_REG_IDX_PS, XT_REG_IDX_THREADPTR,
- ESP32_S2_REG_IDX_GPIOOUT,
- XT_REG_IDX_MMID, XT_REG_IDX_IBREAKENABLE, XT_REG_IDX_OCD_DDR,
- XT_REG_IDX_IBREAKA0, XT_REG_IDX_IBREAKA1, XT_REG_IDX_DBREAKA0, XT_REG_IDX_DBREAKA1,
- XT_REG_IDX_DBREAKC0, XT_REG_IDX_DBREAKC1,
- XT_REG_IDX_EPC1, XT_REG_IDX_EPC2, XT_REG_IDX_EPC3, XT_REG_IDX_EPC4,
- XT_REG_IDX_EPC5, XT_REG_IDX_EPC6, XT_REG_IDX_EPC7, XT_REG_IDX_DEPC,
- XT_REG_IDX_EPS2, XT_REG_IDX_EPS3, XT_REG_IDX_EPS4, XT_REG_IDX_EPS5,
- XT_REG_IDX_EPS6, XT_REG_IDX_EPS7,
- XT_REG_IDX_EXCSAVE1, XT_REG_IDX_EXCSAVE2, XT_REG_IDX_EXCSAVE3, XT_REG_IDX_EXCSAVE4,
- XT_REG_IDX_EXCSAVE5, XT_REG_IDX_EXCSAVE6, XT_REG_IDX_EXCSAVE7, XT_REG_IDX_CPENABLE,
- XT_REG_IDX_INTERRUPT, XT_REG_IDX_INTSET, XT_REG_IDX_INTCLEAR, XT_REG_IDX_INTENABLE,
- XT_REG_IDX_VECBASE, XT_REG_IDX_EXCCAUSE, XT_REG_IDX_DEBUGCAUSE, XT_REG_IDX_CCOUNT,
- XT_REG_IDX_PRID, XT_REG_IDX_ICOUNT, XT_REG_IDX_ICOUNTLEVEL, XT_REG_IDX_EXCVADDR,
- XT_REG_IDX_CCOMPARE0, XT_REG_IDX_CCOMPARE1, XT_REG_IDX_CCOMPARE2,
- XT_REG_IDX_MISC0, XT_REG_IDX_MISC1, XT_REG_IDX_MISC2, XT_REG_IDX_MISC3,
- XT_REG_IDX_A0, XT_REG_IDX_A1, XT_REG_IDX_A2, XT_REG_IDX_A3,
- XT_REG_IDX_A4, XT_REG_IDX_A5, XT_REG_IDX_A6, XT_REG_IDX_A7,
- XT_REG_IDX_A8, XT_REG_IDX_A9, XT_REG_IDX_A10, XT_REG_IDX_A11,
- XT_REG_IDX_A12, XT_REG_IDX_A13, XT_REG_IDX_A14, XT_REG_IDX_A15,
- XT_REG_IDX_PWRCTL, XT_REG_IDX_PWRSTAT, XT_REG_IDX_ERISTAT,
- XT_REG_IDX_CS_ITCTRL, XT_REG_IDX_CS_CLAIMSET, XT_REG_IDX_CS_CLAIMCLR,
- XT_REG_IDX_CS_LOCKACCESS, XT_REG_IDX_CS_LOCKSTATUS, XT_REG_IDX_CS_AUTHSTATUS,
- XT_REG_IDX_FAULT_INFO,
- XT_REG_IDX_TRAX_ID, XT_REG_IDX_TRAX_CTRL, XT_REG_IDX_TRAX_STAT,
- XT_REG_IDX_TRAX_DATA, XT_REG_IDX_TRAX_ADDR, XT_REG_IDX_TRAX_PCTRIGGER,
- XT_REG_IDX_TRAX_PCMATCH, XT_REG_IDX_TRAX_DELAY, XT_REG_IDX_TRAX_MEMSTART,
- XT_REG_IDX_TRAX_MEMEND,
- XT_REG_IDX_PMG, XT_REG_IDX_PMPC, XT_REG_IDX_PM0, XT_REG_IDX_PM1,
- XT_REG_IDX_PMCTRL0, XT_REG_IDX_PMCTRL1, XT_REG_IDX_PMSTAT0, XT_REG_IDX_PMSTAT1,
- XT_REG_IDX_OCD_ID, XT_REG_IDX_OCD_DCRCLR, XT_REG_IDX_OCD_DCRSET, XT_REG_IDX_OCD_DSR,
-};
-
-static const struct xtensa_user_reg_desc esp32s2_user_regs[ESP32_S2_NUM_REGS - XT_NUM_REGS] = {
- { "gpio_out", 0x00, 0, 32, &xtensa_user_reg_u32_type },
-};
-
-static const struct xtensa_config esp32s2_xtensa_cfg = {
- .density = true,
- .aregs_num = XT_AREGS_NUM_MAX,
- .windowed = true,
- .coproc = true,
- .miscregs_num = 4,
- .reloc_vec = true,
- .proc_id = true,
- .threadptr = true,
- .user_regs_num = ARRAY_SIZE(esp32s2_user_regs),
- .user_regs = esp32s2_user_regs,
- .fetch_user_regs = xtensa_fetch_user_regs_u32,
- .queue_write_dirty_user_regs = xtensa_queue_write_dirty_user_regs_u32,
- .gdb_general_regs_num = ESP32_S2_NUM_REGS_G_COMMAND,
- .gdb_regs_mapping = esp32s2_gdb_regs_mapping,
- .irom = {
- .count = 2,
- .regions = {
- {
- .base = ESP32_S2_IROM_LOW,
- .size = ESP32_S2_IROM_HIGH - ESP32_S2_IROM_LOW,
- .access = XT_MEM_ACCESS_READ,
- },
- {
- .base = ESP32_S2_IROM_MASK_LOW,
- .size = ESP32_S2_IROM_MASK_HIGH - ESP32_S2_IROM_MASK_LOW,
- .access = XT_MEM_ACCESS_READ,
- },
- }
- },
- .iram = {
- .count = 2,
- .regions = {
- {
- .base = ESP32_S2_IRAM_LOW,
- .size = ESP32_S2_IRAM_HIGH - ESP32_S2_IRAM_LOW,
- .access = XT_MEM_ACCESS_READ | XT_MEM_ACCESS_WRITE,
- },
- {
- .base = ESP32_S2_RTC_IRAM_LOW,
- .size = ESP32_S2_RTC_IRAM_HIGH - ESP32_S2_RTC_IRAM_LOW,
- .access = XT_MEM_ACCESS_READ | XT_MEM_ACCESS_WRITE,
- },
- }
- },
- .drom = {
- .count = 2,
- .regions = {
- {
- .base = ESP32_S2_DROM0_LOW,
- .size = ESP32_S2_DROM0_HIGH - ESP32_S2_DROM0_LOW,
- .access = XT_MEM_ACCESS_READ,
- },
- {
- .base = ESP32_S2_DROM1_LOW,
- .size = ESP32_S2_DROM1_HIGH - ESP32_S2_DROM1_LOW,
- .access = XT_MEM_ACCESS_READ,
- },
- }
- },
- .dram = {
- .count = 6,
- .regions = {
- {
- .base = ESP32_S2_DRAM_LOW,
- .size = ESP32_S2_DRAM_HIGH - ESP32_S2_DRAM_LOW,
- .access = XT_MEM_ACCESS_READ | XT_MEM_ACCESS_WRITE,
- },
- {
- .base = ESP32_S2_RTC_DRAM_LOW,
- .size = ESP32_S2_RTC_DRAM_HIGH - ESP32_S2_RTC_DRAM_LOW,
- .access = XT_MEM_ACCESS_READ | XT_MEM_ACCESS_WRITE,
- },
- {
- .base = ESP32_S2_RTC_DATA_LOW,
- .size = ESP32_S2_RTC_DATA_HIGH - ESP32_S2_RTC_DATA_LOW,
- .access = XT_MEM_ACCESS_READ | XT_MEM_ACCESS_WRITE,
- },
- {
- .base = ESP32_S2_EXTRAM_DATA_LOW,
- .size = ESP32_S2_EXTRAM_DATA_HIGH - ESP32_S2_EXTRAM_DATA_LOW,
- .access = XT_MEM_ACCESS_READ | XT_MEM_ACCESS_WRITE,
- },
- {
- .base = ESP32_S2_DR_REG_LOW,
- .size = ESP32_S2_DR_REG_HIGH - ESP32_S2_DR_REG_LOW,
- .access = XT_MEM_ACCESS_READ | XT_MEM_ACCESS_WRITE,
- },
- {
- .base = ESP32_S2_SYS_RAM_LOW,
- .size = ESP32_S2_SYS_RAM_HIGH - ESP32_S2_SYS_RAM_LOW,
- .access = XT_MEM_ACCESS_READ | XT_MEM_ACCESS_WRITE,
- },
- }
- },
- .exc = {
- .enabled = true,
- },
- .irq = {
- .enabled = true,
- .irq_num = 32,
- },
- .high_irq = {
- .enabled = true,
- .excm_level = 3,
- .nmi_num = 1,
- },
- .tim_irq = {
- .enabled = true,
- .comp_num = 3,
- },
- .debug = {
- .enabled = true,
- .irq_level = 6,
- .ibreaks_num = 2,
- .dbreaks_num = 2,
- .icount_sz = 32,
- },
- .trace = {
- .enabled = true,
- .mem_sz = ESP32_S2_TRACEMEM_BLOCK_SZ,
- },
-};
-
struct esp32s2_common {
struct esp_xtensa_common esp_xtensa;
};
return ERROR_OK;
}
-int esp32s2_soft_reset_halt(struct target *target)
+static int esp32s2_soft_reset_halt(struct target *target)
{
LOG_TARGET_DEBUG(target, "begin");
int res = esp32s2_soc_reset(target);
if (res != ERROR_OK)
return res;
- return xtensa_assert_reset(target);
+ return xtensa_soft_reset_halt(target);
}
static int esp32s2_set_peri_reg_mask(struct target *target,
alive_sleep(10);
xtensa_poll(target);
if (timeval_ms() >= timeout) {
- LOG_TARGET_ERROR(target, "Timed out waiting for CPU to be reset, target state=%d", target->state);
+ LOG_TARGET_ERROR(target, "Timed out waiting for CPU to be reset, target state=%d",
+ target->state);
return ERROR_TARGET_TIMEOUT;
}
}
{
enum target_state old_state = target->state;
int ret = esp_xtensa_poll(target);
+ if (ret != ERROR_OK)
+ return ret;
if (old_state != TARGET_HALTED && target->state == TARGET_HALTED) {
/* Call any event callbacks that are applicable */
if (old_state == TARGET_DEBUG_RUNNING) {
target_call_event_callbacks(target, TARGET_EVENT_DEBUG_HALTED);
} else {
+ if (esp_xtensa_semihosting(target, &ret) == SEMIHOSTING_HANDLED) {
+ struct esp_xtensa_common *esp_xtensa = target_to_esp_xtensa(target);
+ if (ret == ERROR_OK && esp_xtensa->semihost.need_resume) {
+ esp_xtensa->semihost.need_resume = false;
+ /* Resume xtensa_resume will handle BREAK instruction. */
+ ret = target_resume(target, 1, 0, 1, 0);
+ if (ret != ERROR_OK) {
+ LOG_ERROR("Failed to resume target");
+ return ret;
+ }
+ }
+ return ret;
+ }
esp32s2_on_halt(target);
target_call_event_callbacks(target, TARGET_EVENT_HALTED);
}
static int esp32s2_target_init(struct command_context *cmd_ctx, struct target *target)
{
- return esp_xtensa_target_init(cmd_ctx, target);
+ int ret = esp_xtensa_target_init(cmd_ctx, target);
+ if (ret != ERROR_OK)
+ return ret;
+
+ return esp_xtensa_semihosting_init(target);
}
static const struct xtensa_debug_ops esp32s2_dbg_ops = {
.queue_reg_write = xtensa_dm_queue_pwr_reg_write
};
+static const struct esp_semihost_ops esp32s2_semihost_ops = {
+ .prepare = esp32s2_disable_wdts
+};
+
static int esp32s2_target_create(struct target *target, Jim_Interp *interp)
{
struct xtensa_debug_module_config esp32s2_dm_cfg = {
return ERROR_FAIL;
}
- int ret = esp_xtensa_init_arch_info(target, &esp32->esp_xtensa, &esp32s2_xtensa_cfg, &esp32s2_dm_cfg);
+ int ret = esp_xtensa_init_arch_info(target, &esp32->esp_xtensa, &esp32s2_dm_cfg, &esp32s2_semihost_ops);
if (ret != ERROR_OK) {
LOG_ERROR("Failed to init arch info!");
free(esp32);
static const struct command_registration esp32s2_command_handlers[] = {
{
- .name = "xtensa",
+ .chain = xtensa_command_handlers,
+ },
+ {
+ .name = "esp",
+ .usage = "",
+ .chain = esp32_apptrace_command_handlers,
+ },
+ {
+ .name = "arm",
.mode = COMMAND_ANY,
- .help = "Xtensa commands group",
+ .help = "ARM Command Group",
.usage = "",
- .chain = xtensa_command_handlers,
+ .chain = semihosting_common_handlers
},
COMMAND_REGISTRATION_DONE
};
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