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513b072dde068692bbb7a02ff8166f52c6bf3ac2
[openocd.git] / src / flash / nor / kinetis_ke.c
1 /***************************************************************************
2 * Copyright (C) 2015 by Ivan Meleca *
3 * ivan@artekit.eu *
4 * *
5 * Modified from kinetis.c *
6 * *
7 * Copyright (C) 2011 by Mathias Kuester *
8 * kesmtp@freenet.de *
9 * *
10 * Copyright (C) 2011 sleep(5) ltd *
11 * tomas@sleepfive.com *
12 * *
13 * Copyright (C) 2012 by Christopher D. Kilgour *
14 * techie at whiterocker.com *
15 * *
16 * Copyright (C) 2013 Nemui Trinomius *
17 * nemuisan_kawausogasuki@live.jp *
18 * *
19 * Copyright (C) 2015 Tomas Vanek *
20 * vanekt@fbl.cz *
21 * *
22 * This program is free software; you can redistribute it and/or modify *
23 * it under the terms of the GNU General Public License as published by *
24 * the Free Software Foundation; either version 2 of the License, or *
25 * (at your option) any later version. *
26 * *
27 * This program is distributed in the hope that it will be useful, *
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
30 * GNU General Public License for more details. *
31 * *
32 * You should have received a copy of the GNU General Public License *
33 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
34 ***************************************************************************/
35
36 #ifdef HAVE_CONFIG_H
37 #include "config.h"
38 #endif
39
40 #include "jtag/interface.h"
41 #include "imp.h"
42 #include <helper/binarybuffer.h>
43 #include <target/algorithm.h>
44 #include <target/armv7m.h>
45 #include <target/cortex_m.h>
46
47 /* Addresses */
48 #define SIM_SRSID 0x40048000
49 #define ICS_C1 0x40064000
50 #define ICS_C2 0x40064001
51 #define ICS_C3 0x40064002
52 #define ICS_C4 0x40064003
53 #define ICS_S 0x40064004
54 #define SIM_BUSDIV 0x40048018
55 #define SIM_CLKDIV_KE06 0x40048024
56 #define SIM_CLKDIV_KE04_44_64_80 0x40048024
57 #define SIM_CLKDIV_KE04_16_20_24 0x4004801C
58 #define WDOG_CS1 0x40052000
59
60 #define ICS_C2_BDIV_MASK 0xE0
61 #define ICS_C2_BDIV_SHIFT 5
62 #define ICS_C2_BDIV(x) (((uint8_t)(((uint8_t)(x))<<ICS_C2_BDIV_SHIFT))&ICS_C2_BDIV_MASK)
63 #define ICS_S_LOCK_MASK 0x40
64 #define ICS_C4_SCFTRIM_MASK 0x1
65 #define SIM_CLKDIV_OUTDIV2_MASK 0x1000000
66 #define FTMRX_FCLKDIV_FDIV_MASK 0x3F
67 #define FTMRX_FCLKDIV_FDIV_SHIFT 0
68 #define FTMRX_FCLKDIV_FDIV(x) (((uint8_t)(((uint8_t)(x))<<FTMRX_FCLKDIV_FDIV_SHIFT))&FTMRX_FCLKDIV_FDIV_MASK)
69 #define FTMRX_FCLKDIV_FDIVLCK_MASK 0x40
70 #define FTMRX_FCLKDIV_FDIVLCK_SHIFT 6
71 #define FTMRX_FCLKDIV_FDIVLD_MASK 0x80
72 #define FTMRX_FCLKDIV_FDIVLD_SHIFT 7
73 #define FTMRX_FSTAT_CCIF_MASK 0x80
74 #define FTMRX_FSTAT_MGSTAT0_MASK 0x01
75 #define FTMRX_FSTAT_MGSTAT1_MASK 0x02
76
77 /* Commands */
78 #define FTMRX_CMD_ALLERASED 0x01
79 #define FTMRX_CMD_BLOCKERASED 0x02
80 #define FTMRX_CMD_SECTIONERASED 0x03
81 #define FTMRX_CMD_READONCE 0x04
82 #define FTMRX_CMD_PROGFLASH 0x06
83 #define FTMRX_CMD_PROGONCE 0x07
84 #define FTMRX_CMD_ERASEALL 0x08
85 #define FTMRX_CMD_ERASEBLOCK 0x09
86 #define FTMRX_CMD_ERASESECTOR 0x0A
87 #define FTMRX_CMD_UNSECURE 0x0B
88 #define FTMRX_CMD_VERIFYACCESS 0x0C
89 #define FTMRX_CMD_SETMARGINLVL 0x0D
90 #define FTMRX_CMD_SETFACTORYLVL 0x0E
91 #define FTMRX_CMD_CONFIGNVM 0x0F
92
93 /* Error codes */
94 #define FTMRX_ERROR_ACCERR 0x20
95 #define FTMRX_ERROR_FPVIOL 0x10
96
97 #define KINETIS_KE_SRSID_FAMID(x) ((x >> 28) & 0x0F)
98 #define KINETIS_KE_SRSID_SUBFAMID(x) ((x >> 24) & 0x0F)
99 #define KINETIS_KE_SRSID_PINCOUNT(x) ((x >> 16) & 0x0F)
100
101 #define KINETIS_KE_SRSID_KEX2 0x02
102 #define KINETIS_KE_SRSID_KEX4 0x04
103 #define KINETIS_KE_SRSID_KEX6 0x06
104
105 struct kinetis_ke_flash_bank {
106 uint32_t sector_size;
107 uint32_t protection_size;
108
109 uint32_t sim_srsid;
110 uint32_t ftmrx_fclkdiv_addr;
111 uint32_t ftmrx_fccobix_addr;
112 uint32_t ftmrx_fstat_addr;
113 uint32_t ftmrx_fprot_addr;
114 uint32_t ftmrx_fccobhi_addr;
115 uint32_t ftmrx_fccoblo_addr;
116 };
117
118 #define MDM_REG_STAT 0x00
119 #define MDM_REG_CTRL 0x04
120 #define MDM_REG_ID 0xfc
121
122 #define MDM_STAT_FMEACK (1<<0)
123 #define MDM_STAT_FREADY (1<<1)
124 #define MDM_STAT_SYSSEC (1<<2)
125 #define MDM_STAT_SYSRES (1<<3)
126 #define MDM_STAT_FMEEN (1<<5)
127 #define MDM_STAT_BACKDOOREN (1<<6)
128 #define MDM_STAT_LPEN (1<<7)
129 #define MDM_STAT_VLPEN (1<<8)
130 #define MDM_STAT_LLSMODEXIT (1<<9)
131 #define MDM_STAT_VLLSXMODEXIT (1<<10)
132 #define MDM_STAT_CORE_HALTED (1<<16)
133 #define MDM_STAT_CORE_SLEEPDEEP (1<<17)
134 #define MDM_STAT_CORESLEEPING (1<<18)
135
136 #define MEM_CTRL_FMEIP (1<<0)
137 #define MEM_CTRL_DBG_DIS (1<<1)
138 #define MEM_CTRL_DBG_REQ (1<<2)
139 #define MEM_CTRL_SYS_RES_REQ (1<<3)
140 #define MEM_CTRL_CORE_HOLD_RES (1<<4)
141 #define MEM_CTRL_VLLSX_DBG_REQ (1<<5)
142 #define MEM_CTRL_VLLSX_DBG_ACK (1<<6)
143 #define MEM_CTRL_VLLSX_STAT_ACK (1<<7)
144
145 #define MDM_ACCESS_TIMEOUT 3000 /* iterations */
146
147 static int kinetis_ke_mdm_write_register(struct adiv5_dap *dap, unsigned reg, uint32_t value)
148 {
149 int retval;
150 LOG_DEBUG("MDM_REG[0x%02x] <- %08" PRIX32, reg, value);
151
152 retval = dap_queue_ap_write(dap_ap(dap, 1), reg, value);
153 if (retval != ERROR_OK) {
154 LOG_DEBUG("MDM: failed to queue a write request");
155 return retval;
156 }
157
158 retval = dap_run(dap);
159 if (retval != ERROR_OK) {
160 LOG_DEBUG("MDM: dap_run failed");
161 return retval;
162 }
163
164 return ERROR_OK;
165 }
166
167 static int kinetis_ke_mdm_read_register(struct adiv5_dap *dap, unsigned reg, uint32_t *result)
168 {
169 int retval;
170 retval = dap_queue_ap_read(dap_ap(dap, 1), reg, result);
171 if (retval != ERROR_OK) {
172 LOG_DEBUG("MDM: failed to queue a read request");
173 return retval;
174 }
175
176 retval = dap_run(dap);
177 if (retval != ERROR_OK) {
178 LOG_DEBUG("MDM: dap_run failed");
179 return retval;
180 }
181
182 LOG_DEBUG("MDM_REG[0x%02x]: %08" PRIX32, reg, *result);
183 return ERROR_OK;
184 }
185
186 static int kinetis_ke_mdm_poll_register(struct adiv5_dap *dap, unsigned reg, uint32_t mask, uint32_t value)
187 {
188 uint32_t val;
189 int retval;
190 int timeout = MDM_ACCESS_TIMEOUT;
191
192 do {
193 retval = kinetis_ke_mdm_read_register(dap, reg, &val);
194 if (retval != ERROR_OK || (val & mask) == value)
195 return retval;
196
197 alive_sleep(1);
198 } while (timeout--);
199
200 LOG_DEBUG("MDM: polling timed out");
201 return ERROR_FAIL;
202 }
203
204 static int kinetis_ke_prepare_flash(struct flash_bank *bank)
205 {
206 struct target *target = bank->target;
207 struct kinetis_ke_flash_bank *kinfo = bank->driver_priv;
208 uint8_t c2, c3, c4, s = 0;
209 uint16_t trim_value = 0;
210 uint16_t timeout = 0;
211 uint32_t bus_clock = 0;
212 uint32_t bus_reg_val = 0;
213 uint32_t bus_reg_addr = 0;
214 uint32_t flash_clk_div;
215 uint8_t fclkdiv;
216 int result;
217
218 /*
219 * The RM states that the flash clock has to be set to 1MHz for writing and
220 * erasing operations (otherwise it can damage the flash).
221 * This function configures the entire clock tree to make sure we
222 * run at the specified clock. We'll set FEI mode running from the ~32KHz
223 * internal clock. So we need to:
224 * - Trim internal clock.
225 * - Configure the divider for ICSOUTCLK (ICS module).
226 * - Configure the divider to get a bus clock (SIM module).
227 * - Configure the flash clock that depends on the bus clock.
228 *
229 * For MKE02_40 and MKE02_20 we set ICSOUTCLK = 20MHz and bus clock = 20MHz.
230 * For MKE04 and MKE06 we run at ICSOUTCLK = 48MHz and bus clock = 24MHz.
231 */
232
233 /*
234 * Trim internal clock
235 */
236 switch (KINETIS_KE_SRSID_SUBFAMID(kinfo->sim_srsid)) {
237
238 case KINETIS_KE_SRSID_KEX2:
239 /* Both KE02_20 and KE02_40 should get the same trim value */
240 trim_value = 0x4C;
241 break;
242
243 case KINETIS_KE_SRSID_KEX4:
244 trim_value = 0x54;
245 break;
246
247 case KINETIS_KE_SRSID_KEX6:
248 trim_value = 0x58;
249 break;
250 }
251
252 result = target_read_u8(target, ICS_C4, &c4);
253 if (result != ERROR_OK)
254 return result;
255
256 c3 = trim_value;
257 c4 = (c4 & ~(ICS_C4_SCFTRIM_MASK)) | ((trim_value >> 8) & 0x01);
258
259 result = target_write_u8(target, ICS_C3, c3);
260 if (result != ERROR_OK)
261 return result;
262
263 result = target_write_u8(target, ICS_C4, c4);
264 if (result != ERROR_OK)
265 return result;
266
267 result = target_read_u8(target, ICS_S, &s);
268 if (result != ERROR_OK)
269 return result;
270
271 /* Wait */
272 while (!(s & ICS_S_LOCK_MASK)) {
273
274 if (timeout <= 1000) {
275 timeout++;
276 alive_sleep(1);
277 } else {
278 return ERROR_FAIL;
279 }
280
281 result = target_read_u8(target, ICS_S, &s);
282 if (result != ERROR_OK)
283 return result;
284 }
285
286 /* ... trim done ... */
287
288 /*
289 * Configure SIM (bus clock)
290 */
291 switch (KINETIS_KE_SRSID_SUBFAMID(kinfo->sim_srsid)) {
292
293 /* KE02 sub-family operates on SIM_BUSDIV */
294 case KINETIS_KE_SRSID_KEX2:
295 bus_reg_val = 0;
296 bus_reg_addr = SIM_BUSDIV;
297 bus_clock = 20000000;
298 break;
299
300 /* KE04 and KE06 sub-family operates on SIM_CLKDIV
301 * Clocks are divided by:
302 * DIV1 = core clock = 48MHz
303 * DIV2 = bus clock = 24Mhz
304 * DIV3 = timer clocks
305 * So we need to configure SIM_CLKDIV, DIV1 and DIV2 value
306 */
307 case KINETIS_KE_SRSID_KEX4:
308 /* KE04 devices have the SIM_CLKDIV register at a different offset
309 * depending on the pin count. */
310 switch (KINETIS_KE_SRSID_PINCOUNT(kinfo->sim_srsid)) {
311
312 /* 16, 20 and 24 pins */
313 case 1:
314 case 2:
315 case 3:
316 bus_reg_addr = SIM_CLKDIV_KE04_16_20_24;
317 break;
318
319 /* 44, 64 and 80 pins */
320 case 5:
321 case 7:
322 case 8:
323 bus_reg_addr = SIM_CLKDIV_KE04_44_64_80;
324 break;
325
326 default:
327 LOG_ERROR("KE04 - Unknown pin count");
328 return ERROR_FAIL;
329 }
330
331 bus_reg_val = SIM_CLKDIV_OUTDIV2_MASK;
332 bus_clock = 24000000;
333 break;
334
335 case KINETIS_KE_SRSID_KEX6:
336 bus_reg_val = SIM_CLKDIV_OUTDIV2_MASK;
337 bus_reg_addr = SIM_CLKDIV_KE06;
338 bus_clock = 24000000;
339 break;
340 }
341
342 result = target_write_u32(target, bus_reg_addr, bus_reg_val);
343 if (result != ERROR_OK)
344 return result;
345
346 /*
347 * Configure ICS to FEI (internal source)
348 */
349 result = target_read_u8(target, ICS_C2, &c2);
350 if (result != ERROR_OK)
351 return result;
352
353 c2 &= ~ICS_C2_BDIV_MASK;
354
355 switch (KINETIS_KE_SRSID_SUBFAMID(kinfo->sim_srsid)) {
356
357 case KINETIS_KE_SRSID_KEX2:
358 /* Note: since there are two KE02 types, the KE02_40 @ 40MHz and the
359 * KE02_20 @ 20MHz, we divide here the ~40MHz ICSFLLCLK down to 20MHz,
360 * for compatibility.
361 */
362 c2 |= ICS_C2_BDIV(1);
363 break;
364
365 case KINETIS_KE_SRSID_KEX4:
366 case KINETIS_KE_SRSID_KEX6:
367 /* For KE04 and KE06, the ICSFLLCLK can be 48MHz. */
368 c2 |= ICS_C2_BDIV(0);
369 break;
370 }
371
372 result = target_write_u8(target, ICS_C2, c2);
373 if (result != ERROR_OK)
374 return result;
375
376 /* Internal clock as reference (IREFS = 1) */
377 result = target_write_u8(target, ICS_C1, 4);
378 if (result != ERROR_OK)
379 return result;
380
381 /* Wait for FLL to lock */
382 result = target_read_u8(target, ICS_S, &s);
383 if (result != ERROR_OK)
384 return result;
385
386 while (!(s & ICS_S_LOCK_MASK)) {
387
388 if (timeout <= 1000) {
389 timeout++;
390 alive_sleep(1);
391 } else {
392 return ERROR_FLASH_OPERATION_FAILED;
393 }
394
395 result = target_read_u8(target, ICS_S, &s);
396 if (result != ERROR_OK)
397 return result;
398 }
399
400 /*
401 * Configure flash clock to 1MHz.
402 */
403 flash_clk_div = bus_clock / 1000000L - 1;
404
405 /* Check if the FCLKDIV register is locked */
406 result = target_read_u8(target, kinfo->ftmrx_fclkdiv_addr, &fclkdiv);
407 if (result != ERROR_OK)
408 return result;
409
410 if (!(fclkdiv & FTMRX_FCLKDIV_FDIVLCK_MASK)) {
411 /* Unlocked. Check if the register was configured, and if so, if it has the right value */
412 if ((fclkdiv & FTMRX_FCLKDIV_FDIVLD_MASK) &&
413 ((fclkdiv & FTMRX_FCLKDIV_FDIV_MASK) != FTMRX_FCLKDIV_FDIV(flash_clk_div))) {
414 LOG_WARNING("Flash clock was already set and contains an invalid value.");
415 LOG_WARNING("Please reset the target.");
416 return ERROR_FAIL;
417 }
418
419 /* Finally, configure the flash clock */
420 fclkdiv = (fclkdiv & ~(FTMRX_FCLKDIV_FDIV_MASK)) | FTMRX_FCLKDIV_FDIV(flash_clk_div);
421 result = target_write_u8(target, kinfo->ftmrx_fclkdiv_addr, fclkdiv);
422 if (result != ERROR_OK)
423 return result;
424 } else {
425 /* Locked. Check if the current value is correct. */
426 if ((fclkdiv & FTMRX_FCLKDIV_FDIV_MASK) != FTMRX_FCLKDIV_FDIV(flash_clk_div)) {
427 LOG_WARNING("Flash clock register is locked and contains an invalid value.");
428 LOG_WARNING("Please reset the target.");
429 return ERROR_FAIL;
430 }
431 }
432
433 LOG_INFO("Flash clock ready");
434 return ERROR_OK;
435 }
436
437 static int kinetis_ke_stop_watchdog(struct target *target)
438 {
439 struct working_area *watchdog_algorithm;
440 struct armv7m_algorithm armv7m_info;
441 int retval;
442 uint8_t cs1;
443
444 static const uint8_t watchdog_code[] = {
445 #include "../../../contrib/loaders/flash/kinetis_ke/kinetis_ke_watchdog.inc"
446 };
447
448 if (target->state != TARGET_HALTED) {
449 LOG_ERROR("Target not halted");
450 return ERROR_TARGET_NOT_HALTED;
451 }
452
453 /* Check if the watchdog is enabled */
454 retval = target_read_u8(target, WDOG_CS1, &cs1);
455 if (retval != ERROR_OK)
456 return retval;
457
458 if (!(cs1 & 0x80)) {
459 /* Already stopped */
460 return ERROR_OK;
461 }
462
463 /* allocate working area with watchdog code */
464 if (target_alloc_working_area(target, sizeof(watchdog_code), &watchdog_algorithm) != ERROR_OK) {
465 LOG_WARNING("No working area available for watchdog algorithm");
466 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
467 }
468
469 retval = target_write_buffer(target, watchdog_algorithm->address,
470 sizeof(watchdog_code), watchdog_code);
471 if (retval != ERROR_OK)
472 return retval;
473
474 armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
475 armv7m_info.core_mode = ARM_MODE_THREAD;
476
477 retval = target_run_algorithm(target, 0, NULL, 0, NULL,
478 watchdog_algorithm->address, 0, 100000, &armv7m_info);
479 if (retval != ERROR_OK) {
480 LOG_ERROR("Error executing Kinetis KE watchdog algorithm");
481 } else {
482 LOG_INFO("Watchdog stopped");
483 }
484
485 target_free_working_area(target, watchdog_algorithm);
486
487 return retval;
488 }
489
490 COMMAND_HANDLER(kinetis_ke_disable_wdog_handler)
491 {
492 struct target *target = get_current_target(CMD_CTX);
493
494 if (CMD_ARGC > 0)
495 return ERROR_COMMAND_SYNTAX_ERROR;
496
497 return kinetis_ke_stop_watchdog(target);
498 }
499
500 COMMAND_HANDLER(kinetis_ke_mdm_mass_erase)
501 {
502 struct target *target = get_current_target(CMD_CTX);
503 struct cortex_m_common *cortex_m = target_to_cm(target);
504 struct adiv5_dap *dap = cortex_m->armv7m.arm.dap;
505
506 if (!dap) {
507 LOG_ERROR("Cannot perform mass erase with a high-level adapter");
508 return ERROR_FAIL;
509 }
510
511 int retval;
512
513 /* According to chapter 18.3.7.2 of the KE02 reference manual */
514
515 /* assert SRST */
516 if (jtag_get_reset_config() & RESET_HAS_SRST)
517 adapter_assert_reset();
518
519 /*
520 * 1. Reset the device by asserting RESET pin or DAP_CTRL[3]
521 */
522 retval = kinetis_ke_mdm_write_register(dap, MDM_REG_CTRL, MEM_CTRL_SYS_RES_REQ);
523 if (retval != ERROR_OK)
524 return retval;
525
526 /*
527 * ... Read the MDM-AP status register until the Flash Ready bit sets...
528 */
529 retval = kinetis_ke_mdm_poll_register(dap, MDM_REG_STAT,
530 MDM_STAT_FREADY | MDM_STAT_SYSRES,
531 MDM_STAT_FREADY);
532 if (retval != ERROR_OK) {
533 LOG_ERROR("MDM : flash ready timeout");
534 return retval;
535 }
536
537 /*
538 * 2. Set DAP_CTRL[0] bit to invoke debug mass erase via SWD
539 * 3. Release reset by deasserting RESET pin or DAP_CTRL[3] bit via SWD.
540 */
541 retval = kinetis_ke_mdm_write_register(dap, MDM_REG_CTRL, MEM_CTRL_FMEIP);
542 if (retval != ERROR_OK)
543 return retval;
544
545 /* As a sanity check make sure that device started mass erase procedure */
546 retval = kinetis_ke_mdm_poll_register(dap, MDM_REG_STAT,
547 MDM_STAT_FMEACK, MDM_STAT_FMEACK);
548 if (retval != ERROR_OK)
549 return retval;
550
551 /*
552 * 4. Wait till DAP_CTRL[0] bit is cleared (after mass erase completes,
553 * DAP_CTRL[0] bit is cleared automatically).
554 */
555 retval = kinetis_ke_mdm_poll_register(dap, MDM_REG_CTRL,
556 MEM_CTRL_FMEIP,
557 0);
558 if (retval != ERROR_OK)
559 return retval;
560
561 if (jtag_get_reset_config() & RESET_HAS_SRST)
562 adapter_deassert_reset();
563
564 return ERROR_OK;
565 }
566
567 static const uint32_t kinetis_ke_known_mdm_ids[] = {
568 0x001C0020, /* Kinetis-L/M/V/E/KE Series */
569 };
570
571 /*
572 * This function implements the procedure to connect to
573 * SWD/JTAG on Kinetis K and L series of devices as it is described in
574 * AN4835 "Production Flash Programming Best Practices for Kinetis K-
575 * and L-series MCUs" Section 4.1.1
576 */
577 COMMAND_HANDLER(kinetis_ke_check_flash_security_status)
578 {
579 struct target *target = get_current_target(CMD_CTX);
580 struct cortex_m_common *cortex_m = target_to_cm(target);
581 struct adiv5_dap *dap = cortex_m->armv7m.arm.dap;
582
583 if (!dap) {
584 LOG_WARNING("Cannot check flash security status with a high-level adapter");
585 return ERROR_OK;
586 }
587
588 uint32_t val;
589 int retval;
590
591 /*
592 * ... The MDM-AP ID register can be read to verify that the
593 * connection is working correctly...
594 */
595 retval = kinetis_ke_mdm_read_register(dap, MDM_REG_ID, &val);
596 if (retval != ERROR_OK) {
597 LOG_ERROR("MDM: failed to read ID register");
598 goto fail;
599 }
600
601 bool found = false;
602 for (size_t i = 0; i < ARRAY_SIZE(kinetis_ke_known_mdm_ids); i++) {
603 if (val == kinetis_ke_known_mdm_ids[i]) {
604 found = true;
605 break;
606 }
607 }
608
609 if (!found)
610 LOG_WARNING("MDM: unknown ID %08" PRIX32, val);
611
612 /*
613 * ... Read the MDM-AP status register until the Flash Ready bit sets...
614 */
615 retval = kinetis_ke_mdm_poll_register(dap, MDM_REG_STAT,
616 MDM_STAT_FREADY,
617 MDM_STAT_FREADY);
618 if (retval != ERROR_OK) {
619 LOG_ERROR("MDM: flash ready timeout");
620 goto fail;
621 }
622
623 /*
624 * ... Read the System Security bit to determine if security is enabled.
625 * If System Security = 0, then proceed. If System Security = 1, then
626 * communication with the internals of the processor, including the
627 * flash, will not be possible without issuing a mass erase command or
628 * unsecuring the part through other means (backdoor key unlock)...
629 */
630 retval = kinetis_ke_mdm_read_register(dap, MDM_REG_STAT, &val);
631 if (retval != ERROR_OK) {
632 LOG_ERROR("MDM: failed to read MDM_REG_STAT");
633 goto fail;
634 }
635
636 if (val & MDM_STAT_SYSSEC) {
637 jtag_poll_set_enabled(false);
638
639 LOG_WARNING("*********** ATTENTION! ATTENTION! ATTENTION! ATTENTION! **********");
640 LOG_WARNING("**** ****");
641 LOG_WARNING("**** Your Kinetis MCU is in secured state, which means that, ****");
642 LOG_WARNING("**** with exception for very basic communication, JTAG/SWD ****");
643 LOG_WARNING("**** interface will NOT work. In order to restore its ****");
644 LOG_WARNING("**** functionality please issue 'kinetis_ke mdm mass_erase' ****");
645 LOG_WARNING("**** command, power cycle the MCU and restart OpenOCD. ****");
646 LOG_WARNING("**** ****");
647 LOG_WARNING("*********** ATTENTION! ATTENTION! ATTENTION! ATTENTION! **********");
648 } else {
649 LOG_INFO("MDM: Chip is unsecured. Continuing.");
650 jtag_poll_set_enabled(true);
651 }
652
653 return ERROR_OK;
654
655 fail:
656 LOG_ERROR("MDM: Failed to check security status of the MCU. Cannot proceed further");
657 jtag_poll_set_enabled(false);
658 return retval;
659 }
660
661 FLASH_BANK_COMMAND_HANDLER(kinetis_ke_flash_bank_command)
662 {
663 struct kinetis_ke_flash_bank *bank_info;
664
665 if (CMD_ARGC < 6)
666 return ERROR_COMMAND_SYNTAX_ERROR;
667
668 LOG_INFO("add flash_bank kinetis_ke %s", bank->name);
669
670 bank_info = malloc(sizeof(struct kinetis_ke_flash_bank));
671
672 memset(bank_info, 0, sizeof(struct kinetis_ke_flash_bank));
673
674 bank->driver_priv = bank_info;
675
676 return ERROR_OK;
677 }
678
679 /* Kinetis Program-LongWord Microcodes */
680 static uint8_t kinetis_ke_flash_write_code[] = {
681 #include "../../../contrib/loaders/flash/kinetis_ke/kinetis_ke_flash.inc"
682 };
683
684 static int kinetis_ke_write_words(struct flash_bank *bank, const uint8_t *buffer,
685 uint32_t offset, uint32_t words)
686 {
687 struct kinetis_ke_flash_bank *kinfo = bank->driver_priv;
688 struct target *target = bank->target;
689 uint32_t ram_buffer_size = 512 + 16;
690 struct working_area *write_algorithm;
691 struct working_area *source;
692 uint32_t address = bank->base + offset;
693 struct reg_param reg_params[4];
694 struct armv7m_algorithm armv7m_info;
695 int retval = ERROR_OK;
696 uint32_t flash_code_size;
697
698 LOG_INFO("Kinetis KE: FLASH Write ...");
699
700 /* allocate working area with flash programming code */
701 if (target_alloc_working_area(target, sizeof(kinetis_ke_flash_write_code),
702 &write_algorithm) != ERROR_OK) {
703 LOG_WARNING("no working area available, can't do block memory writes");
704 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
705 }
706
707 /* Patch the FTMRx registers addresses */
708 flash_code_size = sizeof(kinetis_ke_flash_write_code);
709 buf_set_u32(&kinetis_ke_flash_write_code[flash_code_size-16], 0, 32, kinfo->ftmrx_fstat_addr);
710 buf_set_u32(&kinetis_ke_flash_write_code[flash_code_size-12], 0, 32, kinfo->ftmrx_fccobix_addr);
711 buf_set_u32(&kinetis_ke_flash_write_code[flash_code_size-8], 0, 32, kinfo->ftmrx_fccobhi_addr);
712 buf_set_u32(&kinetis_ke_flash_write_code[flash_code_size-4], 0, 32, kinfo->ftmrx_fccoblo_addr);
713
714 retval = target_write_buffer(target, write_algorithm->address,
715 sizeof(kinetis_ke_flash_write_code), kinetis_ke_flash_write_code);
716 if (retval != ERROR_OK)
717 return retval;
718
719 /* memory buffer */
720 if (target_alloc_working_area(target, ram_buffer_size, &source) != ERROR_OK) {
721 /* free working area, write algorithm already allocated */
722 target_free_working_area(target, write_algorithm);
723
724 LOG_WARNING("No large enough working area available, can't do block memory writes");
725 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
726 }
727
728 armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
729 armv7m_info.core_mode = ARM_MODE_THREAD;
730
731 init_reg_param(&reg_params[0], "r0", 32, PARAM_IN_OUT);
732 init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
733 init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
734 init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT);
735
736 buf_set_u32(reg_params[0].value, 0, 32, address);
737 buf_set_u32(reg_params[1].value, 0, 32, words);
738 buf_set_u32(reg_params[2].value, 0, 32, source->address);
739 buf_set_u32(reg_params[3].value, 0, 32, source->address + source->size);
740
741 retval = target_run_flash_async_algorithm(target, buffer, words, 4,
742 0, NULL,
743 4, reg_params,
744 source->address, source->size,
745 write_algorithm->address, 0,
746 &armv7m_info);
747
748 if (retval == ERROR_FLASH_OPERATION_FAILED) {
749 if (buf_get_u32(reg_params[0].value, 0, 32) & FTMRX_ERROR_ACCERR)
750 LOG_ERROR("flash access error");
751
752 if (buf_get_u32(reg_params[0].value, 0, 32) & FTMRX_ERROR_FPVIOL)
753 LOG_ERROR("flash protection violation");
754 }
755
756 target_free_working_area(target, source);
757 target_free_working_area(target, write_algorithm);
758
759 destroy_reg_param(&reg_params[0]);
760 destroy_reg_param(&reg_params[1]);
761 destroy_reg_param(&reg_params[2]);
762 destroy_reg_param(&reg_params[3]);
763
764 return retval;
765 }
766
767 static int kinetis_ke_protect(struct flash_bank *bank, int set,
768 unsigned int first, unsigned int last)
769 {
770 LOG_WARNING("kinetis_ke_protect not supported yet");
771 /* FIXME: TODO */
772
773 if (bank->target->state != TARGET_HALTED) {
774 LOG_ERROR("Target not halted");
775 return ERROR_TARGET_NOT_HALTED;
776 }
777
778 return ERROR_FLASH_BANK_INVALID;
779 }
780
781 static int kinetis_ke_protect_check(struct flash_bank *bank)
782 {
783 struct kinetis_ke_flash_bank *kinfo = bank->driver_priv;
784
785 if (bank->target->state != TARGET_HALTED) {
786 LOG_ERROR("Target not halted");
787 return ERROR_TARGET_NOT_HALTED;
788 }
789
790 int result;
791 uint8_t fprot;
792 uint8_t fpopen, fpldis, fphdis;
793 uint8_t fphs, fpls;
794 uint32_t lprot_size = 0, hprot_size = 0;
795 uint32_t lprot_to = 0, hprot_from = 0;
796
797 /* read protection register */
798 result = target_read_u8(bank->target, kinfo->ftmrx_fprot_addr, &fprot);
799
800 if (result != ERROR_OK)
801 return result;
802
803 fpopen = fprot & 0x80;
804 fpldis = fprot & 0x04;
805 fphdis = fprot & 0x20;
806 fphs = (fprot >> 3) & 0x03;
807 fpls = fprot & 0x03;
808
809 /* Fully unprotected? */
810 if (fpopen && fpldis && fphdis) {
811 LOG_WARNING("No flash protection found.");
812
813 for (unsigned int i = 0; i < bank->num_sectors; i++)
814 bank->sectors[i].is_protected = 0;
815
816 kinfo->protection_size = 0;
817 } else {
818 LOG_WARNING("Flash protected. FPOPEN=%i FPLDIS=%i FPHDIS=%i FPLS=%i FPHS=%i",
819 fpopen ? 1 : 0, fpldis ? 1 : 0, fphdis ? 1 : 0, fpls, fphs);
820
821 /* Retrieve which region is protected and how much */
822 if (fpopen) {
823 if (fpldis == 0)
824 lprot_size = (kinfo->sector_size * 4) << fpls;
825
826 if (fphdis == 0)
827 hprot_size = (kinfo->sector_size * 2) << fphs;
828 } else {
829 if (fpldis == 1)
830 lprot_size = (kinfo->sector_size * 4) << fpls;
831
832 if (fphdis == 1)
833 hprot_size = (kinfo->sector_size * 2) << fphs;
834 }
835
836 kinfo->protection_size = lprot_size + hprot_size;
837
838 /* lprot_to indicates up to where the lower region is protected */
839 lprot_to = lprot_size / kinfo->sector_size;
840
841 /* hprot_from indicates from where the upper region is protected */
842 hprot_from = (0x8000 - hprot_size) / kinfo->sector_size;
843
844 for (unsigned int i = 0; i < bank->num_sectors; i++) {
845
846 /* Check if the sector is in the lower region */
847 if (bank->sectors[i].offset < 0x4000) {
848 /* Compare the sector start address against lprot_to */
849 if (lprot_to && (i < lprot_to))
850 bank->sectors[i].is_protected = 1;
851 else
852 bank->sectors[i].is_protected = 0;
853
854 /* Check if the sector is between the lower and upper region
855 * OR after the upper region */
856 } else if (bank->sectors[i].offset < 0x6000 || bank->sectors[i].offset >= 0x8000) {
857 /* If fpopen is 1 then these regions are protected */
858 if (fpopen)
859 bank->sectors[i].is_protected = 0;
860 else
861 bank->sectors[i].is_protected = 1;
862
863 /* Check if the sector is in the upper region */
864 } else if (bank->sectors[i].offset < 0x8000) {
865 if (hprot_from && (i > hprot_from))
866 bank->sectors[i].is_protected = 1;
867 else
868 bank->sectors[i].is_protected = 0;
869 }
870 }
871 }
872
873 return ERROR_OK;
874 }
875
876 static int kinetis_ke_ftmrx_command(struct flash_bank *bank, uint8_t count,
877 uint8_t *FCCOBIX, uint8_t *FCCOBHI, uint8_t *FCCOBLO, uint8_t *fstat)
878 {
879 uint8_t i;
880 int result;
881 struct target *target = bank->target;
882 struct kinetis_ke_flash_bank *kinfo = bank->driver_priv;
883 uint32_t timeout = 0;
884
885 /* Clear error flags */
886 result = target_write_u8(target, kinfo->ftmrx_fstat_addr, 0x30);
887 if (result != ERROR_OK)
888 return result;
889
890 for (i = 0; i < count; i++) {
891 /* Write index */
892 result = target_write_u8(target, kinfo->ftmrx_fccobix_addr, FCCOBIX[i]);
893 if (result != ERROR_OK)
894 return result;
895
896 /* Write high part */
897 result = target_write_u8(target, kinfo->ftmrx_fccobhi_addr, FCCOBHI[i]);
898 if (result != ERROR_OK)
899 return result;
900
901 /* Write low part (that is not always required) */
902 if (FCCOBLO) {
903 result = target_write_u8(target, kinfo->ftmrx_fccoblo_addr, FCCOBLO[i]);
904 if (result != ERROR_OK)
905 return result;
906 }
907 }
908
909 /* Launch the command */
910 result = target_write_u8(target, kinfo->ftmrx_fstat_addr, 0x80);
911 if (result != ERROR_OK)
912 return result;
913
914 /* Wait for it to finish */
915 result = target_read_u8(target, kinfo->ftmrx_fstat_addr, fstat);
916 if (result != ERROR_OK)
917 return result;
918
919 while (!(*fstat & FTMRX_FSTAT_CCIF_MASK)) {
920 if (timeout <= 1000) {
921 timeout++;
922 alive_sleep(1);
923 } else {
924 return ERROR_FLASH_OPERATION_FAILED;
925 }
926
927 result = target_read_u8(target, kinfo->ftmrx_fstat_addr, fstat);
928 if (result != ERROR_OK)
929 return result;
930 }
931
932 return ERROR_OK;
933 }
934
935 COMMAND_HANDLER(kinetis_ke_securing_test)
936 {
937 int result;
938 struct target *target = get_current_target(CMD_CTX);
939 struct flash_bank *bank = NULL;
940 uint32_t address;
941
942 uint8_t FCCOBIX[2], FCCOBHI[2], FCCOBLO[2], fstat;
943
944 result = get_flash_bank_by_addr(target, 0x00000000, true, &bank);
945 if (result != ERROR_OK)
946 return result;
947
948 assert(bank);
949
950 if (target->state != TARGET_HALTED) {
951 LOG_ERROR("Target not halted");
952 return ERROR_TARGET_NOT_HALTED;
953 }
954
955 address = bank->base + 0x00000400;
956
957 FCCOBIX[0] = 0;
958 FCCOBHI[0] = FTMRX_CMD_ERASESECTOR;
959 FCCOBLO[0] = address >> 16;
960
961 FCCOBIX[1] = 1;
962 FCCOBHI[1] = address >> 8;
963 FCCOBLO[1] = address;
964
965 return kinetis_ke_ftmrx_command(bank, 2, FCCOBIX, FCCOBHI, FCCOBLO, &fstat);
966 }
967
968 static int kinetis_ke_erase(struct flash_bank *bank, unsigned int first,
969 unsigned int last)
970 {
971 int result;
972 uint8_t FCCOBIX[2], FCCOBHI[2], FCCOBLO[2], fstat;
973 bool fcf_erased = false;
974
975 if (bank->target->state != TARGET_HALTED) {
976 LOG_ERROR("Target not halted");
977 return ERROR_TARGET_NOT_HALTED;
978 }
979
980 if ((first > bank->num_sectors) || (last > bank->num_sectors))
981 return ERROR_FLASH_OPERATION_FAILED;
982
983 result = kinetis_ke_prepare_flash(bank);
984 if (result != ERROR_OK)
985 return result;
986
987 for (unsigned int i = first; i <= last; i++) {
988 FCCOBIX[0] = 0;
989 FCCOBHI[0] = FTMRX_CMD_ERASESECTOR;
990 FCCOBLO[0] = (bank->base + bank->sectors[i].offset) >> 16;
991
992 FCCOBIX[1] = 1;
993 FCCOBHI[1] = (bank->base + bank->sectors[i].offset) >> 8;
994 FCCOBLO[1] = (bank->base + bank->sectors[i].offset);
995
996 result = kinetis_ke_ftmrx_command(bank, 2, FCCOBIX, FCCOBHI, FCCOBLO, &fstat);
997
998 if (result != ERROR_OK) {
999 LOG_WARNING("erase sector %u failed", i);
1000 return ERROR_FLASH_OPERATION_FAILED;
1001 }
1002
1003 if (i == 2)
1004 fcf_erased = true;
1005 }
1006
1007 if (fcf_erased) {
1008 LOG_WARNING
1009 ("flash configuration field erased, please reset the device");
1010 }
1011
1012 return ERROR_OK;
1013 }
1014
1015 static int kinetis_ke_write(struct flash_bank *bank, const uint8_t *buffer,
1016 uint32_t offset, uint32_t count)
1017 {
1018 int result;
1019 uint8_t *new_buffer = NULL;
1020 uint32_t words = count / 4;
1021
1022 if (bank->target->state != TARGET_HALTED) {
1023 LOG_ERROR("Target not halted");
1024 return ERROR_TARGET_NOT_HALTED;
1025 }
1026
1027 if (offset > bank->size)
1028 return ERROR_FLASH_BANK_INVALID;
1029
1030 if (offset & 0x3) {
1031 LOG_WARNING("offset 0x%" PRIx32 " breaks the required alignment", offset);
1032 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
1033 }
1034
1035 result = kinetis_ke_stop_watchdog(bank->target);
1036 if (result != ERROR_OK)
1037 return result;
1038
1039 result = kinetis_ke_prepare_flash(bank);
1040 if (result != ERROR_OK)
1041 return result;
1042
1043 if (count & 0x3) {
1044 uint32_t old_count = count;
1045 count = (old_count | 3) + 1;
1046 new_buffer = malloc(count);
1047 if (!new_buffer) {
1048 LOG_ERROR("odd number of bytes to write and no memory "
1049 "for padding buffer");
1050 return ERROR_FAIL;
1051 }
1052
1053 LOG_INFO("odd number of bytes to write (%" PRIu32 "), extending to %" PRIu32 " "
1054 "and padding with 0xff", old_count, count);
1055
1056 memset(new_buffer, 0xff, count);
1057 buffer = memcpy(new_buffer, buffer, old_count);
1058 words++;
1059 }
1060
1061 result = kinetis_ke_write_words(bank, buffer, offset, words);
1062 free(new_buffer);
1063
1064 return result;
1065 }
1066
1067 static int kinetis_ke_probe(struct flash_bank *bank)
1068 {
1069 int result;
1070 uint32_t offset = 0;
1071 struct target *target = bank->target;
1072 struct kinetis_ke_flash_bank *kinfo = bank->driver_priv;
1073
1074 result = target_read_u32(target, SIM_SRSID, &kinfo->sim_srsid);
1075 if (result != ERROR_OK)
1076 return result;
1077
1078 if (KINETIS_KE_SRSID_FAMID(kinfo->sim_srsid) != 0x00) {
1079 LOG_ERROR("Unsupported KE family");
1080 return ERROR_FLASH_OPER_UNSUPPORTED;
1081 }
1082
1083 switch (KINETIS_KE_SRSID_SUBFAMID(kinfo->sim_srsid)) {
1084 case KINETIS_KE_SRSID_KEX2:
1085 LOG_INFO("KE02 sub-family");
1086 break;
1087
1088 case KINETIS_KE_SRSID_KEX4:
1089 LOG_INFO("KE04 sub-family");
1090 break;
1091
1092 case KINETIS_KE_SRSID_KEX6:
1093 LOG_INFO("KE06 sub-family");
1094 break;
1095
1096 default:
1097 LOG_ERROR("Unsupported KE sub-family");
1098 return ERROR_FLASH_OPER_UNSUPPORTED;
1099 }
1100
1101 /* We can only retrieve the ke0x part, but there is no way to know
1102 * the flash size, so assume the maximum flash size for the entire
1103 * sub family.
1104 */
1105 bank->base = 0x00000000;
1106 kinfo->sector_size = 512;
1107
1108 switch (KINETIS_KE_SRSID_SUBFAMID(kinfo->sim_srsid)) {
1109
1110 case KINETIS_KE_SRSID_KEX2:
1111 /* Max. 64KB */
1112 bank->size = 0x00010000;
1113 bank->num_sectors = 128;
1114
1115 /* KE02 uses the FTMRH flash controller,
1116 * and registers have a different offset from the
1117 * FTMRE flash controller. Sort this out here.
1118 */
1119 kinfo->ftmrx_fclkdiv_addr = 0x40020000;
1120 kinfo->ftmrx_fccobix_addr = 0x40020002;
1121 kinfo->ftmrx_fstat_addr = 0x40020006;
1122 kinfo->ftmrx_fprot_addr = 0x40020008;
1123 kinfo->ftmrx_fccobhi_addr = 0x4002000A;
1124 kinfo->ftmrx_fccoblo_addr = 0x4002000B;
1125 break;
1126
1127 case KINETIS_KE_SRSID_KEX6:
1128 case KINETIS_KE_SRSID_KEX4:
1129 /* Max. 128KB */
1130 bank->size = 0x00020000;
1131 bank->num_sectors = 256;
1132
1133 /* KE04 and KE06 use the FTMRE flash controller,
1134 * and registers have a different offset from the
1135 * FTMRH flash controller. Sort this out here.
1136 */
1137 kinfo->ftmrx_fclkdiv_addr = 0x40020003;
1138 kinfo->ftmrx_fccobix_addr = 0x40020001;
1139 kinfo->ftmrx_fstat_addr = 0x40020005;
1140 kinfo->ftmrx_fprot_addr = 0x4002000B;
1141 kinfo->ftmrx_fccobhi_addr = 0x40020009;
1142 kinfo->ftmrx_fccoblo_addr = 0x40020008;
1143 break;
1144 }
1145
1146 free(bank->sectors);
1147
1148 assert(bank->num_sectors > 0);
1149 bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
1150
1151 for (unsigned int i = 0; i < bank->num_sectors; i++) {
1152 bank->sectors[i].offset = offset;
1153 bank->sectors[i].size = kinfo->sector_size;
1154 offset += kinfo->sector_size;
1155 bank->sectors[i].is_erased = -1;
1156 bank->sectors[i].is_protected = 1;
1157 }
1158
1159 return ERROR_OK;
1160 }
1161
1162 static int kinetis_ke_auto_probe(struct flash_bank *bank)
1163 {
1164 struct kinetis_ke_flash_bank *kinfo = bank->driver_priv;
1165
1166 if (kinfo->sim_srsid)
1167 return ERROR_OK;
1168
1169 return kinetis_ke_probe(bank);
1170 }
1171
1172 static int kinetis_ke_info(struct flash_bank *bank, struct command_invocation *cmd)
1173 {
1174 command_print_sameline(cmd, "%s driver for flash bank %s at " TARGET_ADDR_FMT,
1175 bank->driver->name, bank->name, bank->base);
1176
1177 return ERROR_OK;
1178 }
1179
1180 static int kinetis_ke_blank_check(struct flash_bank *bank)
1181 {
1182 uint8_t FCCOBIX[3], FCCOBHI[3], FCCOBLO[3], fstat;
1183 uint16_t longwords = 0;
1184 int result;
1185
1186 if (bank->target->state != TARGET_HALTED) {
1187 LOG_ERROR("Target not halted");
1188 return ERROR_TARGET_NOT_HALTED;
1189 }
1190
1191 result = kinetis_ke_prepare_flash(bank);
1192 if (result != ERROR_OK)
1193 return result;
1194
1195 /* check if whole bank is blank */
1196 FCCOBIX[0] = 0;
1197 FCCOBHI[0] = FTMRX_CMD_ALLERASED;
1198
1199 result = kinetis_ke_ftmrx_command(bank, 1, FCCOBIX, FCCOBHI, NULL, &fstat);
1200
1201 if (result != ERROR_OK)
1202 return result;
1203
1204 if (fstat & (FTMRX_FSTAT_MGSTAT0_MASK | FTMRX_FSTAT_MGSTAT1_MASK)) {
1205 /* the whole bank is not erased, check sector-by-sector */
1206 for (unsigned int i = 0; i < bank->num_sectors; i++) {
1207 FCCOBIX[0] = 0;
1208 FCCOBHI[0] = FTMRX_CMD_SECTIONERASED;
1209 FCCOBLO[0] = (bank->base + bank->sectors[i].offset) >> 16;
1210
1211 FCCOBIX[1] = 1;
1212 FCCOBHI[1] = (bank->base + bank->sectors[i].offset) >> 8;
1213 FCCOBLO[1] = (bank->base + bank->sectors[i].offset);
1214
1215 longwords = 128;
1216
1217 FCCOBIX[2] = 2;
1218 FCCOBHI[2] = longwords >> 8;
1219 FCCOBLO[2] = longwords;
1220
1221 result = kinetis_ke_ftmrx_command(bank, 3, FCCOBIX, FCCOBHI, FCCOBLO, &fstat);
1222
1223 if (result == ERROR_OK) {
1224 bank->sectors[i].is_erased = !(fstat & (FTMRX_FSTAT_MGSTAT0_MASK | FTMRX_FSTAT_MGSTAT1_MASK));
1225 } else {
1226 LOG_DEBUG("Ignoring error on PFlash sector blank-check");
1227 bank->sectors[i].is_erased = -1;
1228 }
1229 }
1230 } else {
1231 /* the whole bank is erased, update all sectors */
1232 for (unsigned int i = 0; i < bank->num_sectors; i++)
1233 bank->sectors[i].is_erased = 1;
1234 }
1235
1236 return ERROR_OK;
1237 }
1238
1239 static const struct command_registration kinetis_ke_security_command_handlers[] = {
1240 {
1241 .name = "check_security",
1242 .mode = COMMAND_EXEC,
1243 .help = "",
1244 .usage = "",
1245 .handler = kinetis_ke_check_flash_security_status,
1246 },
1247 {
1248 .name = "mass_erase",
1249 .mode = COMMAND_EXEC,
1250 .help = "",
1251 .usage = "",
1252 .handler = kinetis_ke_mdm_mass_erase,
1253 },
1254 {
1255 .name = "test_securing",
1256 .mode = COMMAND_EXEC,
1257 .help = "",
1258 .usage = "",
1259 .handler = kinetis_ke_securing_test,
1260 },
1261 COMMAND_REGISTRATION_DONE
1262 };
1263
1264 static const struct command_registration kinetis_ke_exec_command_handlers[] = {
1265 {
1266 .name = "mdm",
1267 .mode = COMMAND_ANY,
1268 .help = "",
1269 .usage = "",
1270 .chain = kinetis_ke_security_command_handlers,
1271 },
1272 {
1273 .name = "disable_wdog",
1274 .mode = COMMAND_EXEC,
1275 .help = "Disable the watchdog timer",
1276 .usage = "",
1277 .handler = kinetis_ke_disable_wdog_handler,
1278 },
1279 COMMAND_REGISTRATION_DONE
1280 };
1281
1282 static const struct command_registration kinetis_ke_command_handler[] = {
1283 {
1284 .name = "kinetis_ke",
1285 .mode = COMMAND_ANY,
1286 .help = "Kinetis KE NAND flash controller commands",
1287 .usage = "",
1288 .chain = kinetis_ke_exec_command_handlers,
1289 },
1290 COMMAND_REGISTRATION_DONE
1291 };
1292
1293 const struct flash_driver kinetis_ke_flash = {
1294 .name = "kinetis_ke",
1295 .commands = kinetis_ke_command_handler,
1296 .flash_bank_command = kinetis_ke_flash_bank_command,
1297 .erase = kinetis_ke_erase,
1298 .protect = kinetis_ke_protect,
1299 .write = kinetis_ke_write,
1300 .read = default_flash_read,
1301 .probe = kinetis_ke_probe,
1302 .auto_probe = kinetis_ke_auto_probe,
1303 .erase_check = kinetis_ke_blank_check,
1304 .protect_check = kinetis_ke_protect_check,
1305 .info = kinetis_ke_info,
1306 .free_driver_priv = default_flash_free_driver_priv,
1307 };
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