diff options
Diffstat (limited to 'src/target/xtensa/xtensa_chip.c')
| -rw-r--r-- | src/target/xtensa/xtensa_chip.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/target/xtensa/xtensa_chip.c b/src/target/xtensa/xtensa_chip.c new file mode 100644 index 0000000..79aa3e4 --- /dev/null +++ b/src/target/xtensa/xtensa_chip.c @@ -0,0 +1,170 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +/*************************************************************************** + * Xtensa Chip-level Target Support for OpenOCD * + * Copyright (C) 2020-2022 Cadence Design Systems, Inc. * + ***************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "assert.h" +#include <target/target.h> +#include <target/target_type.h> +#include <target/arm_adi_v5.h> +#include <rtos/rtos.h> +#include "xtensa_chip.h" + +int xtensa_chip_init_arch_info(struct target *target, void *arch_info, + struct xtensa_debug_module_config *dm_cfg) +{ + struct xtensa_chip_common *xtensa_chip = (struct xtensa_chip_common *)arch_info; + int ret = xtensa_init_arch_info(target, &xtensa_chip->xtensa, dm_cfg); + if (ret != ERROR_OK) + return ret; + /* All xtensa target structures point back to original xtensa_chip */ + xtensa_chip->xtensa.xtensa_chip = arch_info; + return ERROR_OK; +} + +int xtensa_chip_target_init(struct command_context *cmd_ctx, struct target *target) +{ + return xtensa_target_init(cmd_ctx, target); +} + +int xtensa_chip_arch_state(struct target *target) +{ + return ERROR_OK; +} + +static int xtensa_chip_poll(struct target *target) +{ + enum target_state old_state = target->state; + int ret = xtensa_poll(target); + + 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 + target_call_event_callbacks(target, TARGET_EVENT_HALTED); + } + + return ret; +} + +static int xtensa_chip_virt2phys(struct target *target, + target_addr_t virtual, target_addr_t *physical) +{ + if (physical) { + *physical = virtual; + return ERROR_OK; + } + return ERROR_FAIL; +} + +static const struct xtensa_debug_ops xtensa_chip_dm_dbg_ops = { + .queue_enable = xtensa_dm_queue_enable, + .queue_reg_read = xtensa_dm_queue_reg_read, + .queue_reg_write = xtensa_dm_queue_reg_write +}; + +static const struct xtensa_power_ops xtensa_chip_dm_pwr_ops = { + .queue_reg_read = xtensa_dm_queue_pwr_reg_read, + .queue_reg_write = xtensa_dm_queue_pwr_reg_write +}; + +static int xtensa_chip_target_create(struct target *target, Jim_Interp *interp) +{ + struct xtensa_debug_module_config xtensa_chip_dm_cfg = { + .dbg_ops = &xtensa_chip_dm_dbg_ops, + .pwr_ops = &xtensa_chip_dm_pwr_ops, + .tap = NULL, + .queue_tdi_idle = NULL, + .queue_tdi_idle_arg = NULL, + }; + + xtensa_chip_dm_cfg.tap = target->tap; + LOG_DEBUG("JTAG: %s:%s pos %d", target->tap->chip, target->tap->tapname, target->tap->abs_chain_position); + + struct xtensa_chip_common *xtensa_chip = calloc(1, sizeof(struct xtensa_chip_common)); + if (!xtensa_chip) { + LOG_ERROR("Failed to alloc chip-level memory!"); + return ERROR_FAIL; + } + + int ret = xtensa_chip_init_arch_info(target, xtensa_chip, &xtensa_chip_dm_cfg); + if (ret != ERROR_OK) { + LOG_ERROR("Failed to init arch info!"); + free(xtensa_chip); + return ret; + } + + /*Assume running target. If different, the first poll will fix this. */ + target->state = TARGET_RUNNING; + target->debug_reason = DBG_REASON_NOTHALTED; + return ERROR_OK; +} + +void xtensa_chip_target_deinit(struct target *target) +{ + struct xtensa *xtensa = target_to_xtensa(target); + xtensa_target_deinit(target); + free(xtensa->xtensa_chip); +} + +static int xtensa_chip_examine(struct target *target) +{ + return xtensa_examine(target); +} + +int xtensa_chip_jim_configure(struct target *target, struct jim_getopt_info *goi) +{ + target->has_dap = false; + return JIM_CONTINUE; +} + +/** Methods for generic example of Xtensa-based chip-level targets. */ +struct target_type xtensa_chip_target = { + .name = "xtensa", + + .poll = xtensa_chip_poll, + .arch_state = xtensa_chip_arch_state, + + .halt = xtensa_halt, + .resume = xtensa_resume, + .step = xtensa_step, + + .assert_reset = xtensa_assert_reset, + .deassert_reset = xtensa_deassert_reset, + .soft_reset_halt = xtensa_soft_reset_halt, + + .virt2phys = xtensa_chip_virt2phys, + .mmu = xtensa_mmu_is_enabled, + .read_memory = xtensa_read_memory, + .write_memory = xtensa_write_memory, + + .read_buffer = xtensa_read_buffer, + .write_buffer = xtensa_write_buffer, + + .checksum_memory = xtensa_checksum_memory, + + .get_gdb_reg_list = xtensa_get_gdb_reg_list, + + .add_breakpoint = xtensa_breakpoint_add, + .remove_breakpoint = xtensa_breakpoint_remove, + + .add_watchpoint = xtensa_watchpoint_add, + .remove_watchpoint = xtensa_watchpoint_remove, + + .target_create = xtensa_chip_target_create, + .target_jim_configure = xtensa_chip_jim_configure, + .init_target = xtensa_chip_target_init, + .examine = xtensa_chip_examine, + .deinit_target = xtensa_chip_target_deinit, + + .gdb_query_custom = xtensa_gdb_query_custom, + + .commands = xtensa_command_handlers, +}; |