1 /***************************************************************************
2 * Copyright (C) 2006 by Magnus Lundin *
5 * Copyright (C) 2008 by Spencer Oliver *
6 * spen@spen-soft.co.uk *
8 * Copyright (C) 2019-2021, Ampere Computing LLC *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
15 * This program is distributed in the hope that it will be useful, *
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
18 * GNU General Public License for more details. *
20 * You should have received a copy of the GNU General Public License *
21 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
22 ***************************************************************************/
24 #ifndef OPENOCD_TARGET_ARM_ADI_V5_H
25 #define OPENOCD_TARGET_ARM_ADI_V5_H
29 * This defines formats and data structures used to talk to ADIv5 entities.
30 * Those include a DAP, different types of Debug Port (DP), and memory mapped
31 * resources accessed through a MEM-AP.
34 #include <helper/list.h>
36 #include "helper/bits.h"
38 /* JEP106 ID for ARM */
41 /* three-bit ACK values for SWD access (sent LSB first) */
42 #define SWD_ACK_OK 0x1
43 #define SWD_ACK_WAIT 0x2
44 #define SWD_ACK_FAULT 0x4
49 #define BANK_REG(bank, reg) (((bank) << 4) | (reg))
51 /* A[3:0] for DP registers; A[1:0] are always zero.
52 * - JTAG accesses all of these via JTAG_DP_DPACC, except for
53 * IDCODE (JTAG_DP_IDCODE) and ABORT (JTAG_DP_ABORT).
54 * - SWD accesses these directly, sometimes needing SELECT.DPBANKSEL
56 #define DP_DPIDR BANK_REG(0x0, 0x0) /* DPv1+: ro */
57 #define DP_ABORT BANK_REG(0x0, 0x0) /* DPv1+: SWD: wo */
58 #define DP_DPIDR1 BANK_REG(0x1, 0x0) /* DPv3: ro */
59 #define DP_BASEPTR0 BANK_REG(0x2, 0x0) /* DPv3: ro */
60 #define DP_BASEPTR1 BANK_REG(0x3, 0x0) /* DPv3: ro */
61 #define DP_CTRL_STAT BANK_REG(0x0, 0x4) /* DPv0+: rw */
62 #define DP_DLCR BANK_REG(0x1, 0x4) /* DPv1+: SWD: rw */
63 #define DP_TARGETID BANK_REG(0x2, 0x4) /* DPv2: ro */
64 #define DP_DLPIDR BANK_REG(0x3, 0x4) /* DPv2: ro */
65 #define DP_EVENTSTAT BANK_REG(0x4, 0x4) /* DPv2: ro */
66 #define DP_SELECT1 BANK_REG(0x5, 0x4) /* DPv3: ro */
67 #define DP_RESEND BANK_REG(0x0, 0x8) /* DPv1+: SWD: ro */
68 #define DP_SELECT BANK_REG(0x0, 0x8) /* DPv0+: JTAG: rw; SWD: wo */
69 #define DP_RDBUFF BANK_REG(0x0, 0xC) /* DPv0+: ro */
70 #define DP_TARGETSEL BANK_REG(0x0, 0xC) /* DPv2: SWD: wo */
72 #define DLCR_TO_TRN(dlcr) ((uint32_t)(1 + ((3 & (dlcr)) >> 8))) /* 1..4 clocks */
74 /* Fields of DP_DPIDR register */
75 #define DP_DPIDR_VERSION_SHIFT 12
76 #define DP_DPIDR_VERSION_MASK (0xFUL << DP_DPIDR_VERSION_SHIFT)
78 /* Fields of the DP's AP ABORT register */
79 #define DAPABORT (1UL << 0)
80 #define STKCMPCLR (1UL << 1) /* SWD-only */
81 #define STKERRCLR (1UL << 2) /* SWD-only */
82 #define WDERRCLR (1UL << 3) /* SWD-only */
83 #define ORUNERRCLR (1UL << 4) /* SWD-only */
85 /* Fields of register DP_DPIDR1 */
86 #define DP_DPIDR1_ASIZE_MASK (0x7F)
87 #define DP_DPIDR1_ERRMODE BIT(7)
89 /* Fields of the DP's CTRL/STAT register */
90 #define CORUNDETECT (1UL << 0)
91 #define SSTICKYORUN (1UL << 1)
92 /* 3:2 - transaction mode (e.g. pushed compare) */
93 #define SSTICKYCMP (1UL << 4)
94 #define SSTICKYERR (1UL << 5)
95 #define READOK (1UL << 6) /* SWD-only */
96 #define WDATAERR (1UL << 7) /* SWD-only */
97 /* 11:8 - mask lanes for pushed compare or verify ops */
98 /* 21:12 - transaction counter */
99 #define CDBGRSTREQ (1UL << 26)
100 #define CDBGRSTACK (1UL << 27)
101 #define CDBGPWRUPREQ (1UL << 28)
102 #define CDBGPWRUPACK (1UL << 29)
103 #define CSYSPWRUPREQ (1UL << 30)
104 #define CSYSPWRUPACK (1UL << 31)
106 #define DP_DLPIDR_PROTVSN 1u
108 #define DP_SELECT_APSEL 0xFF000000
109 #define DP_SELECT_APBANK 0x000000F0
110 #define DP_SELECT_DPBANK 0x0000000F
111 #define DP_SELECT_INVALID 0x00FFFF00 /* Reserved bits one */
113 #define DP_APSEL_MAX (255)
114 #define DP_APSEL_INVALID (-1)
116 #define DP_TARGETSEL_INVALID 0xFFFFFFFFU
117 #define DP_TARGETSEL_DPID_MASK 0x0FFFFFFFU
118 #define DP_TARGETSEL_INSTANCEID_MASK 0xF0000000U
119 #define DP_TARGETSEL_INSTANCEID_SHIFT 28
122 /* MEM-AP register addresses */
123 #define ADIV5_MEM_AP_REG_CSW (0x00)
124 #define ADIV5_MEM_AP_REG_TAR (0x04)
125 #define ADIV5_MEM_AP_REG_TAR64 (0x08) /* RW: Large Physical Address Extension */
126 #define ADIV5_MEM_AP_REG_DRW (0x0C) /* RW: Data Read/Write register */
127 #define ADIV5_MEM_AP_REG_BD0 (0x10) /* RW: Banked Data register 0-3 */
128 #define ADIV5_MEM_AP_REG_BD1 (0x14)
129 #define ADIV5_MEM_AP_REG_BD2 (0x18)
130 #define ADIV5_MEM_AP_REG_BD3 (0x1C)
131 #define ADIV5_MEM_AP_REG_MBT (0x20) /* --: Memory Barrier Transfer register */
132 #define ADIV5_MEM_AP_REG_BASE64 (0xF0) /* RO: Debug Base Address (LA) register */
133 #define ADIV5_MEM_AP_REG_CFG (0xF4) /* RO: Configuration register */
134 #define ADIV5_MEM_AP_REG_BASE (0xF8) /* RO: Debug Base Address register */
136 #define ADIV6_MEM_AP_REG_CSW (0xD00 + ADIV5_MEM_AP_REG_CSW)
137 #define ADIV6_MEM_AP_REG_TAR (0xD00 + ADIV5_MEM_AP_REG_TAR)
138 #define ADIV6_MEM_AP_REG_TAR64 (0xD00 + ADIV5_MEM_AP_REG_TAR64)
139 #define ADIV6_MEM_AP_REG_DRW (0xD00 + ADIV5_MEM_AP_REG_DRW)
140 #define ADIV6_MEM_AP_REG_BD0 (0xD00 + ADIV5_MEM_AP_REG_BD0)
141 #define ADIV6_MEM_AP_REG_BD1 (0xD00 + ADIV5_MEM_AP_REG_BD1)
142 #define ADIV6_MEM_AP_REG_BD2 (0xD00 + ADIV5_MEM_AP_REG_BD2)
143 #define ADIV6_MEM_AP_REG_BD3 (0xD00 + ADIV5_MEM_AP_REG_BD3)
144 #define ADIV6_MEM_AP_REG_MBT (0xD00 + ADIV5_MEM_AP_REG_MBT)
145 #define ADIV6_MEM_AP_REG_BASE64 (0xD00 + ADIV5_MEM_AP_REG_BASE64)
146 #define ADIV6_MEM_AP_REG_CFG (0xD00 + ADIV5_MEM_AP_REG_CFG)
147 #define ADIV6_MEM_AP_REG_BASE (0xD00 + ADIV5_MEM_AP_REG_BASE)
149 #define MEM_AP_REG_CSW(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_CSW : ADIV5_MEM_AP_REG_CSW)
150 #define MEM_AP_REG_TAR(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_TAR : ADIV5_MEM_AP_REG_TAR)
151 #define MEM_AP_REG_TAR64(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_TAR64 : ADIV5_MEM_AP_REG_TAR64)
152 #define MEM_AP_REG_DRW(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_DRW : ADIV5_MEM_AP_REG_DRW)
153 #define MEM_AP_REG_BD0(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_BD0 : ADIV5_MEM_AP_REG_BD0)
154 #define MEM_AP_REG_BD1(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_BD1 : ADIV5_MEM_AP_REG_BD1)
155 #define MEM_AP_REG_BD2(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_BD2 : ADIV5_MEM_AP_REG_BD2)
156 #define MEM_AP_REG_BD3(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_BD3 : ADIV5_MEM_AP_REG_BD3)
157 #define MEM_AP_REG_MBT(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_MBT : ADIV5_MEM_AP_REG_MBT)
158 #define MEM_AP_REG_BASE64(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_BASE64 : ADIV5_MEM_AP_REG_BASE64)
159 #define MEM_AP_REG_CFG(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_CFG : ADIV5_MEM_AP_REG_CFG)
160 #define MEM_AP_REG_BASE(dap) (is_adiv6(dap) ? ADIV6_MEM_AP_REG_BASE : ADIV5_MEM_AP_REG_BASE)
162 /* Generic AP register address */
163 #define ADIV5_AP_REG_IDR (0xFC) /* RO: Identification Register */
164 #define ADIV6_AP_REG_IDR (0xD00 + ADIV5_AP_REG_IDR)
165 #define AP_REG_IDR(dap) (is_adiv6(dap) ? ADIV6_AP_REG_IDR : ADIV5_AP_REG_IDR)
167 /* Fields of the MEM-AP's CSW register */
168 #define CSW_SIZE_MASK 7
172 #define CSW_ADDRINC_MASK (3UL << 4)
173 #define CSW_ADDRINC_OFF 0UL
174 #define CSW_ADDRINC_SINGLE (1UL << 4)
175 #define CSW_ADDRINC_PACKED (2UL << 4)
176 #define CSW_DEVICE_EN (1UL << 6)
177 #define CSW_TRIN_PROG (1UL << 7)
179 /* All fields in bits 12 and above are implementation-defined
180 * Defaults for AHB/AXI in "Standard Memory Access Port Definitions" from ADI
181 * Some bits are shared between buses
183 #define CSW_SPIDEN (1UL << 23)
184 #define CSW_DBGSWENABLE (1UL << 31)
186 /* AHB: Privileged */
187 #define CSW_AHB_HPROT1 (1UL << 25)
188 /* AHB: set HMASTER signals to AHB-AP ID */
189 #define CSW_AHB_MASTER_DEBUG (1UL << 29)
190 /* AHB5: non-secure access via HNONSEC
191 * AHB3: SBO, UNPREDICTABLE if zero */
192 #define CSW_AHB_SPROT (1UL << 30)
193 /* AHB: initial value of csw_default */
194 #define CSW_AHB_DEFAULT (CSW_AHB_HPROT1 | CSW_AHB_MASTER_DEBUG | CSW_DBGSWENABLE)
196 /* AXI: Privileged */
197 #define CSW_AXI_ARPROT0_PRIV (1UL << 28)
198 /* AXI: Non-secure */
199 #define CSW_AXI_ARPROT1_NONSEC (1UL << 29)
200 /* AXI: initial value of csw_default */
201 #define CSW_AXI_DEFAULT (CSW_AXI_ARPROT0_PRIV | CSW_AXI_ARPROT1_NONSEC | CSW_DBGSWENABLE)
203 /* APB: initial value of csw_default */
204 #define CSW_APB_DEFAULT (CSW_DBGSWENABLE)
206 /* Fields of the MEM-AP's CFG register */
207 #define MEM_AP_REG_CFG_BE BIT(0)
208 #define MEM_AP_REG_CFG_LA BIT(1)
209 #define MEM_AP_REG_CFG_LD BIT(2)
210 #define MEM_AP_REG_CFG_INVALID 0xFFFFFFF8
212 /* Fields of the MEM-AP's IDR register */
213 #define AP_REG_IDR_REVISION_MASK (0xF0000000)
214 #define AP_REG_IDR_REVISION_SHIFT (28)
215 #define AP_REG_IDR_DESIGNER_MASK (0x0FFE0000)
216 #define AP_REG_IDR_DESIGNER_SHIFT (17)
217 #define AP_REG_IDR_CLASS_MASK (0x0001E000)
218 #define AP_REG_IDR_CLASS_SHIFT (13)
219 #define AP_REG_IDR_VARIANT_MASK (0x000000F0)
220 #define AP_REG_IDR_VARIANT_SHIFT (4)
221 #define AP_REG_IDR_TYPE_MASK (0x0000000F)
222 #define AP_REG_IDR_TYPE_SHIFT (0)
224 #define AP_REG_IDR_CLASS_NONE (0x0)
225 #define AP_REG_IDR_CLASS_COM (0x1)
226 #define AP_REG_IDR_CLASS_MEM_AP (0x8)
228 #define AP_REG_IDR_VALUE(d, c, t) (\
229 (((d) << AP_REG_IDR_DESIGNER_SHIFT) & AP_REG_IDR_DESIGNER_MASK) | \
230 (((c) << AP_REG_IDR_CLASS_SHIFT) & AP_REG_IDR_CLASS_MASK) | \
231 (((t) << AP_REG_IDR_TYPE_SHIFT) & AP_REG_IDR_TYPE_MASK) \
234 #define AP_TYPE_MASK (AP_REG_IDR_DESIGNER_MASK | AP_REG_IDR_CLASS_MASK | AP_REG_IDR_TYPE_MASK)
236 /* FIXME: not SWD specific; should be renamed, e.g. adiv5_special_seq */
237 enum swd_special_seq {
248 * This represents an ARM Debug Interface (v5) Access Port (AP).
249 * Most common is a MEM-AP, for memory access.
253 * DAP this AP belongs to.
255 struct adiv5_dap *dap;
263 * Default value for (MEM-AP) AP_REG_CSW register.
265 uint32_t csw_default;
268 * Cache for (MEM-AP) AP_REG_CSW register value. This is written to
269 * configure an access mode, such as autoincrementing AP_REG_TAR during
270 * word access. "-1" indicates no cached value.
275 * Cache for (MEM-AP) AP_REG_TAR register value This is written to
276 * configure the address being read or written
277 * "-1" indicates no cached value.
279 target_addr_t tar_value;
282 * Configures how many extra tck clocks are added after starting a
283 * MEM-AP access before we try to read its status (and/or result).
285 uint32_t memaccess_tck;
287 /* Size of TAR autoincrement block, ARM ADI Specification requires at least 10 bits */
288 uint32_t tar_autoincr_block;
290 /* true if packed transfers are supported by the MEM-AP */
291 bool packed_transfers;
293 /* true if unaligned memory access is not supported by the MEM-AP */
294 bool unaligned_access_bad;
296 /* true if tar_value is in sync with TAR register */
299 /* MEM AP configuration register indicating LPAE support */
302 /* references counter */
303 unsigned int refcount;
305 /* AP referenced during config. Never put it, even when refcount reaches zero */
306 bool config_ap_never_release;
311 * This represents an ARM Debug Interface (v5) Debug Access Port (DAP).
312 * A DAP has two types of component: one Debug Port (DP), which is a
313 * transport agent; and at least one Access Port (AP), controlling
316 * There are two basic DP transports: JTAG, and ARM's low pin-count SWD.
317 * Accordingly, this interface is responsible for hiding the transport
318 * differences so upper layer code can largely ignore them.
320 * When the chip is implemented with JTAG-DP or SW-DP, the transport is
321 * fixed as JTAG or SWD, respectively. Chips incorporating SWJ-DP permit
322 * a choice made at board design time (by only using the SWD pins), or
323 * as part of setting up a debug session (if all the dual-role JTAG/SWD
324 * signals are available).
327 const struct dap_ops *ops;
329 /* dap transaction list for WAIT support */
330 struct list_head cmd_journal;
332 /* pool for dap_cmd objects */
333 struct list_head cmd_pool;
335 /* number of dap_cmd objects in the pool */
336 size_t cmd_pool_size;
338 struct jtag_tap *tap;
340 uint32_t dp_ctrl_stat;
342 struct adiv5_ap ap[DP_APSEL_MAX + 1];
344 /* The current manually selected AP by the "dap apsel" command */
348 * Cache for DP_SELECT register. A value of DP_SELECT_INVALID
349 * indicates no cached value and forces rewrite of the register.
353 /* information about current pending SWjDP-AHBAP transaction */
357 * Holds the pointer to the destination word for the last queued read,
358 * for use with posted AP read sequence optimization.
362 /* The TI TMS470 and TMS570 series processors use a BE-32 memory ordering
363 * despite lack of support in the ARMv7 architecture. Memory access through
364 * the AHB-AP has strange byte ordering these processors, and we need to
365 * swizzle appropriately. */
366 bool ti_be_32_quirks;
369 * STLINK adapter need to know if last AP operation was read or write, and
370 * in case of write has to flush it with a dummy read from DP_RDBUFF
372 bool stlink_flush_ap_write;
375 * Signals that an attempt to reestablish communication afresh
376 * should be performed before the next access.
380 /** Flag saying whether to ignore the syspwrupack flag in DAP. Some devices
381 * do not set this bit until later in the bringup sequence */
382 bool ignore_syspwrupack;
384 /** Value to select DP in SWD multidrop mode or DP_TARGETSEL_INVALID */
385 uint32_t multidrop_targetsel;
386 /** TPARTNO and TDESIGNER fields of multidrop_targetsel have been configured */
387 bool multidrop_dp_id_valid;
388 /** TINSTANCE field of multidrop_targetsel has been configured */
389 bool multidrop_instance_id_valid;
392 * Record if enter in SWD required passing through DORMANT
394 bool switch_through_dormant;
396 /** Indicates ADI version (5, 6 or 0 for unknown) being used */
397 unsigned int adi_version;
399 /* ADIv6 only field indicating ROM Table address size */
404 * Transport-neutral representation of queued DAP transactions, supporting
405 * both JTAG and SWD transports. All submitted transactions are logically
406 * queued, until the queue is executed by run(). Some implementations might
407 * execute transactions as soon as they're submitted, but no status is made
408 * available until run().
411 /** connect operation for SWD */
412 int (*connect)(struct adiv5_dap *dap);
414 /** send a sequence to the DAP */
415 int (*send_sequence)(struct adiv5_dap *dap, enum swd_special_seq seq);
417 /** DP register read. */
418 int (*queue_dp_read)(struct adiv5_dap *dap, unsigned reg,
420 /** DP register write. */
421 int (*queue_dp_write)(struct adiv5_dap *dap, unsigned reg,
424 /** AP register read. */
425 int (*queue_ap_read)(struct adiv5_ap *ap, unsigned reg,
427 /** AP register write. */
428 int (*queue_ap_write)(struct adiv5_ap *ap, unsigned reg,
431 /** AP operation abort. */
432 int (*queue_ap_abort)(struct adiv5_dap *dap, uint8_t *ack);
434 /** Executes all queued DAP operations. */
435 int (*run)(struct adiv5_dap *dap);
437 /** Executes all queued DAP operations but doesn't check
438 * sticky error conditions */
439 int (*sync)(struct adiv5_dap *dap);
441 /** Optional; called at OpenOCD exit */
442 void (*quit)(struct adiv5_dap *dap);
449 AP_TYPE_JTAG_AP = AP_REG_IDR_VALUE(ARM_ID, AP_REG_IDR_CLASS_NONE, 0), /* JTAG-AP */
450 AP_TYPE_COM_AP = AP_REG_IDR_VALUE(ARM_ID, AP_REG_IDR_CLASS_COM, 0), /* COM-AP */
451 AP_TYPE_AHB3_AP = AP_REG_IDR_VALUE(ARM_ID, AP_REG_IDR_CLASS_MEM_AP, 1), /* AHB3 Memory-AP */
452 AP_TYPE_APB_AP = AP_REG_IDR_VALUE(ARM_ID, AP_REG_IDR_CLASS_MEM_AP, 2), /* APB2 or APB3 Memory-AP */
453 AP_TYPE_AXI_AP = AP_REG_IDR_VALUE(ARM_ID, AP_REG_IDR_CLASS_MEM_AP, 4), /* AXI3 or AXI4 Memory-AP */
454 AP_TYPE_AHB5_AP = AP_REG_IDR_VALUE(ARM_ID, AP_REG_IDR_CLASS_MEM_AP, 5), /* AHB5 Memory-AP */
455 AP_TYPE_APB4_AP = AP_REG_IDR_VALUE(ARM_ID, AP_REG_IDR_CLASS_MEM_AP, 6), /* APB4 Memory-AP */
456 AP_TYPE_AXI5_AP = AP_REG_IDR_VALUE(ARM_ID, AP_REG_IDR_CLASS_MEM_AP, 7), /* AXI5 Memory-AP */
457 AP_TYPE_AHB5H_AP = AP_REG_IDR_VALUE(ARM_ID, AP_REG_IDR_CLASS_MEM_AP, 8), /* AHB5 with enhanced HPROT Memory-AP */
460 /* Check the ap->cfg_reg Long Address field (bit 1)
462 * 0b0: The AP only supports physical addresses 32 bits or smaller
463 * 0b1: The AP supports physical addresses larger than 32 bits
465 * @param ap The AP used for reading.
467 * @return true for 64 bit, false for 32 bit
469 static inline bool is_64bit_ap(struct adiv5_ap *ap)
471 return (ap->cfg_reg & MEM_AP_REG_CFG_LA) != 0;
475 * Check if DAP is ADIv6
477 * @param dap The DAP to test
479 * @return true for ADIv6, false for either ADIv5 or unknown version
481 static inline bool is_adiv6(const struct adiv5_dap *dap)
483 return dap->adi_version == 6;
487 * Send an adi-v5 sequence to the DAP.
489 * @param dap The DAP used for reading.
490 * @param seq The sequence to send.
492 * @return ERROR_OK for success, else a fault code.
494 static inline int dap_send_sequence(struct adiv5_dap *dap,
495 enum swd_special_seq seq)
498 return dap->ops->send_sequence(dap, seq);
502 * Queue a DP register read.
503 * Note that not all DP registers are readable; also, that JTAG and SWD
504 * have slight differences in DP register support.
506 * @param dap The DAP used for reading.
507 * @param reg The two-bit number of the DP register being read.
508 * @param data Pointer saying where to store the register's value
509 * (in host endianness).
511 * @return ERROR_OK for success, else a fault code.
513 static inline int dap_queue_dp_read(struct adiv5_dap *dap,
514 unsigned reg, uint32_t *data)
517 return dap->ops->queue_dp_read(dap, reg, data);
521 * Queue a DP register write.
522 * Note that not all DP registers are writable; also, that JTAG and SWD
523 * have slight differences in DP register support.
525 * @param dap The DAP used for writing.
526 * @param reg The two-bit number of the DP register being written.
527 * @param data Value being written (host endianness)
529 * @return ERROR_OK for success, else a fault code.
531 static inline int dap_queue_dp_write(struct adiv5_dap *dap,
532 unsigned reg, uint32_t data)
535 return dap->ops->queue_dp_write(dap, reg, data);
539 * Queue an AP register read.
541 * @param ap The AP used for reading.
542 * @param reg The number of the AP register being read.
543 * @param data Pointer saying where to store the register's value
544 * (in host endianness).
546 * @return ERROR_OK for success, else a fault code.
548 static inline int dap_queue_ap_read(struct adiv5_ap *ap,
549 unsigned reg, uint32_t *data)
551 assert(ap->dap->ops);
552 if (ap->refcount == 0) {
554 LOG_ERROR("BUG: refcount AP#%" PRIu8 " used without get", ap->ap_num);
556 return ap->dap->ops->queue_ap_read(ap, reg, data);
560 * Queue an AP register write.
562 * @param ap The AP used for writing.
563 * @param reg The number of the AP register being written.
564 * @param data Value being written (host endianness)
566 * @return ERROR_OK for success, else a fault code.
568 static inline int dap_queue_ap_write(struct adiv5_ap *ap,
569 unsigned reg, uint32_t data)
571 assert(ap->dap->ops);
572 if (ap->refcount == 0) {
574 LOG_ERROR("BUG: refcount AP#%" PRIu8 " used without get", ap->ap_num);
576 return ap->dap->ops->queue_ap_write(ap, reg, data);
580 * Queue an AP abort operation. The current AP transaction is aborted,
581 * including any update of the transaction counter. The AP is left in
582 * an unknown state (so it must be re-initialized). For use only after
583 * the AP has reported WAIT status for an extended period.
585 * @param dap The DAP used for writing.
586 * @param ack Pointer to where transaction status will be stored.
588 * @return ERROR_OK for success, else a fault code.
590 static inline int dap_queue_ap_abort(struct adiv5_dap *dap, uint8_t *ack)
593 return dap->ops->queue_ap_abort(dap, ack);
597 * Perform all queued DAP operations, and clear any errors posted in the
598 * CTRL_STAT register when they are done. Note that if more than one AP
599 * operation will be queued, one of the first operations in the queue
600 * should probably enable CORUNDETECT in the CTRL/STAT register.
602 * @param dap The DAP used.
604 * @return ERROR_OK for success, else a fault code.
606 static inline int dap_run(struct adiv5_dap *dap)
609 return dap->ops->run(dap);
612 static inline int dap_sync(struct adiv5_dap *dap)
616 return dap->ops->sync(dap);
620 static inline int dap_dp_read_atomic(struct adiv5_dap *dap, unsigned reg,
625 retval = dap_queue_dp_read(dap, reg, value);
626 if (retval != ERROR_OK)
632 static inline int dap_dp_poll_register(struct adiv5_dap *dap, unsigned reg,
633 uint32_t mask, uint32_t value, int timeout)
636 assert((value & mask) == value);
640 LOG_DEBUG("DAP: poll %x, mask 0x%08" PRIx32 ", value 0x%08" PRIx32,
643 ret = dap_dp_read_atomic(dap, reg, ®val);
647 if ((regval & mask) == value)
654 LOG_DEBUG("DAP: poll %x timeout", reg);
661 /* Queued MEM-AP memory mapped single word transfers. */
662 int mem_ap_read_u32(struct adiv5_ap *ap,
663 target_addr_t address, uint32_t *value);
664 int mem_ap_write_u32(struct adiv5_ap *ap,
665 target_addr_t address, uint32_t value);
667 /* Synchronous MEM-AP memory mapped single word transfers. */
668 int mem_ap_read_atomic_u32(struct adiv5_ap *ap,
669 target_addr_t address, uint32_t *value);
670 int mem_ap_write_atomic_u32(struct adiv5_ap *ap,
671 target_addr_t address, uint32_t value);
673 /* Synchronous MEM-AP memory mapped bus block transfers. */
674 int mem_ap_read_buf(struct adiv5_ap *ap,
675 uint8_t *buffer, uint32_t size, uint32_t count, target_addr_t address);
676 int mem_ap_write_buf(struct adiv5_ap *ap,
677 const uint8_t *buffer, uint32_t size, uint32_t count, target_addr_t address);
679 /* Synchronous, non-incrementing buffer functions for accessing fifos. */
680 int mem_ap_read_buf_noincr(struct adiv5_ap *ap,
681 uint8_t *buffer, uint32_t size, uint32_t count, target_addr_t address);
682 int mem_ap_write_buf_noincr(struct adiv5_ap *ap,
683 const uint8_t *buffer, uint32_t size, uint32_t count, target_addr_t address);
685 /* Initialisation of the debug system, power domains and registers */
686 int dap_dp_init(struct adiv5_dap *dap);
687 int dap_dp_init_or_reconnect(struct adiv5_dap *dap);
688 int mem_ap_init(struct adiv5_ap *ap);
690 /* Invalidate cached DP select and cached TAR and CSW of all APs */
691 void dap_invalidate_cache(struct adiv5_dap *dap);
693 /* Probe Access Ports to find a particular type. Increment AP refcount */
694 int dap_find_get_ap(struct adiv5_dap *dap,
695 enum ap_type type_to_find,
696 struct adiv5_ap **ap_out);
698 /* Return AP with specified ap_num. Increment AP refcount */
699 struct adiv5_ap *dap_get_ap(struct adiv5_dap *dap, unsigned int ap_num);
701 /* Return AP with specified ap_num. Increment AP refcount and keep it non-zero */
702 struct adiv5_ap *dap_get_config_ap(struct adiv5_dap *dap, unsigned int ap_num);
704 /* Decrement AP refcount and release the AP when refcount reaches zero */
705 int dap_put_ap(struct adiv5_ap *ap);
707 /** Check if SWD multidrop configuration is valid */
708 static inline bool dap_is_multidrop(struct adiv5_dap *dap)
710 return dap->multidrop_dp_id_valid && dap->multidrop_instance_id_valid;
713 /* Lookup CoreSight component */
714 int dap_lookup_cs_component(struct adiv5_ap *ap,
715 uint8_t type, target_addr_t *addr, int32_t idx);
719 /* Put debug link into SWD mode */
720 int dap_to_swd(struct adiv5_dap *dap);
722 /* Put debug link into JTAG mode */
723 int dap_to_jtag(struct adiv5_dap *dap);
725 extern const struct command_registration dap_instance_commands[];
727 struct arm_dap_object;
728 extern struct adiv5_dap *dap_instance_by_jim_obj(Jim_Interp *interp, Jim_Obj *o);
729 extern struct adiv5_dap *adiv5_get_dap(struct arm_dap_object *obj);
730 extern int dap_info_command(struct command_invocation *cmd,
731 struct adiv5_ap *ap);
732 extern int dap_register_commands(struct command_context *cmd_ctx);
733 extern const char *adiv5_dap_name(struct adiv5_dap *self);
734 extern const struct swd_driver *adiv5_dap_swd_driver(struct adiv5_dap *self);
735 extern int dap_cleanup_all(void);
737 struct adiv5_private_config {
739 struct adiv5_dap *dap;
742 extern int adiv5_verify_config(struct adiv5_private_config *pc);
743 extern int adiv5_jim_configure(struct target *target, struct jim_getopt_info *goi);
745 struct adiv5_mem_ap_spot {
746 struct adiv5_dap *dap;
751 extern int adiv5_mem_ap_spot_init(struct adiv5_mem_ap_spot *p);
752 extern int adiv5_jim_mem_ap_spot_configure(struct adiv5_mem_ap_spot *cfg,
753 struct jim_getopt_info *goi);
755 #endif /* OPENOCD_TARGET_ARM_ADI_V5_H */