2022-06-26 21:10:08 +00:00
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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Introduce ARCv2 architecture related code
This patch is an initial bump of ARC-specific code
which implements the ARCv2 target(EMSK board) initializing
routine and some basic remote connection/load/continue
functionality.
Changes:
03.12.2019:
-Add return value checks.
-Using static code analizer next fixes were made:
Mem leak in functions:
arc_jtag_read_memory,arc_jtag_read_memory,
arc_jtag_write_registers, arc_jtag_read_registers,
jim_arc_add_reg_type_flags, jim_arc_add_reg_type_struct,
arc_build_reg_cache, arc_mem_read.
Dead code in "arc_mem_read";
In arc_save_context, arc_restore_context correct arguments
in"memset" calls.
In "build_bcr_reg_cache", "arc_build_reg_cache" check
if list is not empty.
29.12.2019
-Moved code from arc_v2.c to arc.c
-Added checks of the result of calloc/malloc calls
-Reworked arc_cmd.c: replaced spagetty code with functions
-Moved to one style in if statements - to "if(!bla)"
-Changed Licence headers
22.01.2020
-Removed unused variables in arc_common
-Renamed register operation functions
-Introduced arc_deinit_target function
-Fixed interrupt handling in halt/resume:
* add irq_state field in arc_common
* fix irq enable/disable calls ( now STATUS32 register is used)
-Switched from buf_set(get)_us32() usage to target_buffer_set(get)_u32()
-Made some cleanup
30.01.2020
-Removed redundant arc_register struct, moved target link to arc_reg_desc
-Introduced link to BCR reg cache in arc_common for freeing memory.
-Now arc_deinit_target frees all arc-related allocated memory.
Valgrind shows no memory leaks.
-Inroduced arch description in arc.c
01.02.2020
-Remove small memory allocations in arc_init_reg. Instead created reg_value
and feature fields in arc_reg_desc.
-Add return value for arc_init_reg() func.
-Replaced some integer constants(61,62,63) with defines.
-Removed redundant conversions in arc_reg_get_field().
-Moved iccm/dccm configuration code from arc_configure()
to separate functions.
19.02.2020
-Change sizeof(struct) to sizeof(*ptr) in allocations
-Changed if/while(ptr != NULL) to if/while(ptr)
-Removed unused variables from struct arc_jtag
-Add additional structs to arc_reg_data_type
to reduce amount of memory allocations calls
and simplifying memory freeing.
-Add helper arc_reg_bitfield_t struct which includes
reg_data_type_bitfield object and char[] name. Reduces
memory allocations calls.
-Add limit for reg_type/reg_type_field names(20 symbols).
-Add in jim_arc_add_reg_type*() functions additional
argnument checks(amount of field/name size).
-In jim_arc_add_reg_type*() reduced amount of memory allocations.
-Cleanup of jim_arc_add_reg_type*() functions.
-For commands update ".usage" fields according docopt.
-Cleanup in arc_jtag.c
-Renamed functions which require jtag_exeutre_queue() to arc_jtag_enque_*()
-Add arc_jtag_enque_register_rw() function, which r/w to jtag ir/dr regs
during regiter r/w.
24.02:
-Change include guards in arc* files according coding style
-Remove _t suffix in struct arc_reg_bitfield_t
-Some cleanup
Change-Id: I6ab0e82b12e6ddb683c9d13dfb7dd6f49a30cb9f
Signed-off-by: Evgeniy Didin <didin@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Reviewed-on: http://openocd.zylin.com/5332
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
2020-01-27 12:22:27 +00:00
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/***************************************************************************
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* Copyright (C) 2013-2014,2019-2020 Synopsys, Inc. *
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* Frank Dols <frank.dols@synopsys.com> *
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* Mischa Jonker <mischa.jonker@synopsys.com> *
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* Anton Kolesov <anton.kolesov@synopsys.com> *
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* Evgeniy Didin <didin@synopsys.com> *
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***************************************************************************/
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#ifndef OPENOCD_TARGET_ARC_JTAG_H
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#define OPENOCD_TARGET_ARC_JTAG_H
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#define ARC_TRANSACTION_CMD_REG 0x9 /* Command to perform */
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#define ARC_TRANSACTION_CMD_REG_LENGTH 4
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/* Jtag status register, value is placed in IR to read jtag status register */
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#define ARC_JTAG_STATUS_REG 0x8
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#define ARC_JTAG_ADDRESS_REG 0xA /* SoC address to access */
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#define ARC_JTAG_DATA_REG 0xB /* Data read/written from SoC */
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/* Jtag status register field */
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#define ARC_JTAG_STAT_RU 0x10
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/* ARC Jtag transactions */
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#define ARC_JTAG_WRITE_TO_MEMORY 0x0
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#define ARC_JTAG_WRITE_TO_CORE_REG 0x1
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#define ARC_JTAG_WRITE_TO_AUX_REG 0x2
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#define ARC_JTAG_CMD_NOP 0x3
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#define ARC_JTAG_READ_FROM_MEMORY 0x4
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#define ARC_JTAG_READ_FROM_CORE_REG 0x5
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#define ARC_JTAG_READ_FROM_AUX_REG 0x6
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#define ARC_JTAG_CORE_REG 0x0
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#define ARC_JTAG_AUX_REG 0x1
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struct arc_jtag {
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struct jtag_tap *tap;
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uint32_t cur_trans;
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};
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/* ----- Exported JTAG functions ------------------------------------------- */
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int arc_jtag_startup(struct arc_jtag *jtag_info);
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int arc_jtag_status(struct arc_jtag *const jtag_info, uint32_t *const value);
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int arc_jtag_write_core_reg(struct arc_jtag *jtag_info, uint32_t *addr,
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uint32_t count, const uint32_t *buffer);
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int arc_jtag_read_core_reg(struct arc_jtag *jtag_info, uint32_t *addr,
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uint32_t count, uint32_t *buffer);
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int arc_jtag_write_core_reg_one(struct arc_jtag *jtag_info, uint32_t addr,
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const uint32_t buffer);
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int arc_jtag_read_core_reg_one(struct arc_jtag *jtag_info, uint32_t addr,
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uint32_t *buffer);
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int arc_jtag_write_aux_reg(struct arc_jtag *jtag_info, uint32_t *addr,
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uint32_t count, const uint32_t *buffer);
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int arc_jtag_write_aux_reg_one(struct arc_jtag *jtag_info, uint32_t addr,
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uint32_t value);
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int arc_jtag_read_aux_reg(struct arc_jtag *jtag_info, uint32_t *addr,
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uint32_t count, uint32_t *buffer);
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int arc_jtag_read_aux_reg_one(struct arc_jtag *jtag_info, uint32_t addr,
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uint32_t *value);
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int arc_jtag_write_memory(struct arc_jtag *jtag_info, uint32_t addr,
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uint32_t count, const uint32_t *buffer);
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int arc_jtag_read_memory(struct arc_jtag *jtag_info, uint32_t addr,
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uint32_t count, uint32_t *buffer, bool slow_memory);
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#endif /* OPENOCD_TARGET_ARC_JTAG_H */
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