xref: /openbmc/linux/drivers/input/rmi4/rmi_f34v7.c (revision 82e6fdd6)
1 /*
2  * Copyright (c) 2016, Zodiac Inflight Innovations
3  * Copyright (c) 2007-2016, Synaptics Incorporated
4  * Copyright (C) 2012 Alexandra Chin <alexandra.chin@tw.synaptics.com>
5  * Copyright (C) 2012 Scott Lin <scott.lin@tw.synaptics.com>
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License version 2 as published by
9  * the Free Software Foundation.
10  */
11 
12 #include <linux/bitops.h>
13 #include <linux/kernel.h>
14 #include <linux/rmi.h>
15 #include <linux/firmware.h>
16 #include <linux/delay.h>
17 #include <linux/slab.h>
18 #include <linux/jiffies.h>
19 #include <asm/unaligned.h>
20 
21 #include "rmi_driver.h"
22 #include "rmi_f34.h"
23 
24 static int rmi_f34v7_read_flash_status(struct f34_data *f34)
25 {
26 	u8 status;
27 	u8 command;
28 	int ret;
29 
30 	ret = rmi_read_block(f34->fn->rmi_dev,
31 			f34->fn->fd.data_base_addr + f34->v7.off.flash_status,
32 			&status,
33 			sizeof(status));
34 	if (ret < 0) {
35 		rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
36 			"%s: Error %d reading flash status\n", __func__, ret);
37 		return ret;
38 	}
39 
40 	f34->v7.in_bl_mode = status >> 7;
41 	f34->v7.flash_status = status & 0x1f;
42 
43 	if (f34->v7.flash_status != 0x00) {
44 		dev_err(&f34->fn->dev, "%s: status=%d, command=0x%02x\n",
45 			__func__, f34->v7.flash_status, f34->v7.command);
46 	}
47 
48 	ret = rmi_read_block(f34->fn->rmi_dev,
49 			f34->fn->fd.data_base_addr + f34->v7.off.flash_cmd,
50 			&command,
51 			sizeof(command));
52 	if (ret < 0) {
53 		dev_err(&f34->fn->dev, "%s: Failed to read flash command\n",
54 			__func__);
55 		return ret;
56 	}
57 
58 	f34->v7.command = command;
59 
60 	return 0;
61 }
62 
63 static int rmi_f34v7_wait_for_idle(struct f34_data *f34, int timeout_ms)
64 {
65 	unsigned long timeout;
66 
67 	timeout = msecs_to_jiffies(timeout_ms);
68 
69 	if (!wait_for_completion_timeout(&f34->v7.cmd_done, timeout)) {
70 		dev_warn(&f34->fn->dev, "%s: Timed out waiting for idle status\n",
71 			 __func__);
72 		return -ETIMEDOUT;
73 	}
74 
75 	return 0;
76 }
77 
78 static int rmi_f34v7_write_command_single_transaction(struct f34_data *f34,
79 						      u8 cmd)
80 {
81 	int ret;
82 	u8 base;
83 	struct f34v7_data_1_5 data_1_5;
84 
85 	base = f34->fn->fd.data_base_addr;
86 
87 	memset(&data_1_5, 0, sizeof(data_1_5));
88 
89 	switch (cmd) {
90 	case v7_CMD_ERASE_ALL:
91 		data_1_5.partition_id = CORE_CODE_PARTITION;
92 		data_1_5.command = CMD_V7_ERASE_AP;
93 		break;
94 	case v7_CMD_ERASE_UI_FIRMWARE:
95 		data_1_5.partition_id = CORE_CODE_PARTITION;
96 		data_1_5.command = CMD_V7_ERASE;
97 		break;
98 	case v7_CMD_ERASE_BL_CONFIG:
99 		data_1_5.partition_id = GLOBAL_PARAMETERS_PARTITION;
100 		data_1_5.command = CMD_V7_ERASE;
101 		break;
102 	case v7_CMD_ERASE_UI_CONFIG:
103 		data_1_5.partition_id = CORE_CONFIG_PARTITION;
104 		data_1_5.command = CMD_V7_ERASE;
105 		break;
106 	case v7_CMD_ERASE_DISP_CONFIG:
107 		data_1_5.partition_id = DISPLAY_CONFIG_PARTITION;
108 		data_1_5.command = CMD_V7_ERASE;
109 		break;
110 	case v7_CMD_ERASE_FLASH_CONFIG:
111 		data_1_5.partition_id = FLASH_CONFIG_PARTITION;
112 		data_1_5.command = CMD_V7_ERASE;
113 		break;
114 	case v7_CMD_ERASE_GUEST_CODE:
115 		data_1_5.partition_id = GUEST_CODE_PARTITION;
116 		data_1_5.command = CMD_V7_ERASE;
117 		break;
118 	case v7_CMD_ENABLE_FLASH_PROG:
119 		data_1_5.partition_id = BOOTLOADER_PARTITION;
120 		data_1_5.command = CMD_V7_ENTER_BL;
121 		break;
122 	}
123 
124 	data_1_5.payload[0] = f34->bootloader_id[0];
125 	data_1_5.payload[1] = f34->bootloader_id[1];
126 
127 	ret = rmi_write_block(f34->fn->rmi_dev,
128 			base + f34->v7.off.partition_id,
129 			&data_1_5, sizeof(data_1_5));
130 	if (ret < 0) {
131 		dev_err(&f34->fn->dev,
132 			"%s: Failed to write single transaction command\n",
133 			__func__);
134 		return ret;
135 	}
136 
137 	return 0;
138 }
139 
140 static int rmi_f34v7_write_command(struct f34_data *f34, u8 cmd)
141 {
142 	int ret;
143 	u8 base;
144 	u8 command;
145 
146 	base = f34->fn->fd.data_base_addr;
147 
148 	switch (cmd) {
149 	case v7_CMD_WRITE_FW:
150 	case v7_CMD_WRITE_CONFIG:
151 	case v7_CMD_WRITE_GUEST_CODE:
152 		command = CMD_V7_WRITE;
153 		break;
154 	case v7_CMD_READ_CONFIG:
155 		command = CMD_V7_READ;
156 		break;
157 	case v7_CMD_ERASE_ALL:
158 		command = CMD_V7_ERASE_AP;
159 		break;
160 	case v7_CMD_ERASE_UI_FIRMWARE:
161 	case v7_CMD_ERASE_BL_CONFIG:
162 	case v7_CMD_ERASE_UI_CONFIG:
163 	case v7_CMD_ERASE_DISP_CONFIG:
164 	case v7_CMD_ERASE_FLASH_CONFIG:
165 	case v7_CMD_ERASE_GUEST_CODE:
166 		command = CMD_V7_ERASE;
167 		break;
168 	case v7_CMD_ENABLE_FLASH_PROG:
169 		command = CMD_V7_ENTER_BL;
170 		break;
171 	default:
172 		dev_err(&f34->fn->dev, "%s: Invalid command 0x%02x\n",
173 			__func__, cmd);
174 		return -EINVAL;
175 	}
176 
177 	f34->v7.command = command;
178 
179 	switch (cmd) {
180 	case v7_CMD_ERASE_ALL:
181 	case v7_CMD_ERASE_UI_FIRMWARE:
182 	case v7_CMD_ERASE_BL_CONFIG:
183 	case v7_CMD_ERASE_UI_CONFIG:
184 	case v7_CMD_ERASE_DISP_CONFIG:
185 	case v7_CMD_ERASE_FLASH_CONFIG:
186 	case v7_CMD_ERASE_GUEST_CODE:
187 	case v7_CMD_ENABLE_FLASH_PROG:
188 		ret = rmi_f34v7_write_command_single_transaction(f34, cmd);
189 		if (ret < 0)
190 			return ret;
191 		else
192 			return 0;
193 	default:
194 		break;
195 	}
196 
197 	rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: writing cmd %02X\n",
198 		__func__, command);
199 
200 	ret = rmi_write_block(f34->fn->rmi_dev,
201 			base + f34->v7.off.flash_cmd,
202 			&command, sizeof(command));
203 	if (ret < 0) {
204 		dev_err(&f34->fn->dev, "%s: Failed to write flash command\n",
205 			__func__);
206 		return ret;
207 	}
208 
209 	return 0;
210 }
211 
212 static int rmi_f34v7_write_partition_id(struct f34_data *f34, u8 cmd)
213 {
214 	int ret;
215 	u8 base;
216 	u8 partition;
217 
218 	base = f34->fn->fd.data_base_addr;
219 
220 	switch (cmd) {
221 	case v7_CMD_WRITE_FW:
222 		partition = CORE_CODE_PARTITION;
223 		break;
224 	case v7_CMD_WRITE_CONFIG:
225 	case v7_CMD_READ_CONFIG:
226 		if (f34->v7.config_area == v7_UI_CONFIG_AREA)
227 			partition = CORE_CONFIG_PARTITION;
228 		else if (f34->v7.config_area == v7_DP_CONFIG_AREA)
229 			partition = DISPLAY_CONFIG_PARTITION;
230 		else if (f34->v7.config_area == v7_PM_CONFIG_AREA)
231 			partition = GUEST_SERIALIZATION_PARTITION;
232 		else if (f34->v7.config_area == v7_BL_CONFIG_AREA)
233 			partition = GLOBAL_PARAMETERS_PARTITION;
234 		else if (f34->v7.config_area == v7_FLASH_CONFIG_AREA)
235 			partition = FLASH_CONFIG_PARTITION;
236 		break;
237 	case v7_CMD_WRITE_GUEST_CODE:
238 		partition = GUEST_CODE_PARTITION;
239 		break;
240 	case v7_CMD_ERASE_ALL:
241 		partition = CORE_CODE_PARTITION;
242 		break;
243 	case v7_CMD_ERASE_BL_CONFIG:
244 		partition = GLOBAL_PARAMETERS_PARTITION;
245 		break;
246 	case v7_CMD_ERASE_UI_CONFIG:
247 		partition = CORE_CONFIG_PARTITION;
248 		break;
249 	case v7_CMD_ERASE_DISP_CONFIG:
250 		partition = DISPLAY_CONFIG_PARTITION;
251 		break;
252 	case v7_CMD_ERASE_FLASH_CONFIG:
253 		partition = FLASH_CONFIG_PARTITION;
254 		break;
255 	case v7_CMD_ERASE_GUEST_CODE:
256 		partition = GUEST_CODE_PARTITION;
257 		break;
258 	case v7_CMD_ENABLE_FLASH_PROG:
259 		partition = BOOTLOADER_PARTITION;
260 		break;
261 	default:
262 		dev_err(&f34->fn->dev, "%s: Invalid command 0x%02x\n",
263 			__func__, cmd);
264 		return -EINVAL;
265 	}
266 
267 	ret = rmi_write_block(f34->fn->rmi_dev,
268 			base + f34->v7.off.partition_id,
269 			&partition, sizeof(partition));
270 	if (ret < 0) {
271 		dev_err(&f34->fn->dev, "%s: Failed to write partition ID\n",
272 			__func__);
273 		return ret;
274 	}
275 
276 	return 0;
277 }
278 
279 static int rmi_f34v7_read_partition_table(struct f34_data *f34)
280 {
281 	int ret;
282 	unsigned long timeout;
283 	u8 base;
284 	__le16 length;
285 	u16 block_number = 0;
286 
287 	base = f34->fn->fd.data_base_addr;
288 
289 	f34->v7.config_area = v7_FLASH_CONFIG_AREA;
290 
291 	ret = rmi_f34v7_write_partition_id(f34, v7_CMD_READ_CONFIG);
292 	if (ret < 0)
293 		return ret;
294 
295 	ret = rmi_write_block(f34->fn->rmi_dev,
296 			base + f34->v7.off.block_number,
297 			&block_number, sizeof(block_number));
298 	if (ret < 0) {
299 		dev_err(&f34->fn->dev, "%s: Failed to write block number\n",
300 			__func__);
301 		return ret;
302 	}
303 
304 	put_unaligned_le16(f34->v7.flash_config_length, &length);
305 
306 	ret = rmi_write_block(f34->fn->rmi_dev,
307 			base + f34->v7.off.transfer_length,
308 			&length, sizeof(length));
309 	if (ret < 0) {
310 		dev_err(&f34->fn->dev, "%s: Failed to write transfer length\n",
311 			__func__);
312 		return ret;
313 	}
314 
315 	init_completion(&f34->v7.cmd_done);
316 
317 	ret = rmi_f34v7_write_command(f34, v7_CMD_READ_CONFIG);
318 	if (ret < 0) {
319 		dev_err(&f34->fn->dev, "%s: Failed to write command\n",
320 			__func__);
321 		return ret;
322 	}
323 
324 	timeout = msecs_to_jiffies(F34_WRITE_WAIT_MS);
325 	while (time_before(jiffies, timeout)) {
326 		usleep_range(5000, 6000);
327 		rmi_f34v7_read_flash_status(f34);
328 
329 		if (f34->v7.command == v7_CMD_IDLE &&
330 		    f34->v7.flash_status == 0x00) {
331 			break;
332 		}
333 	}
334 
335 	ret = rmi_read_block(f34->fn->rmi_dev,
336 			base + f34->v7.off.payload,
337 			f34->v7.read_config_buf,
338 			f34->v7.partition_table_bytes);
339 	if (ret < 0) {
340 		dev_err(&f34->fn->dev, "%s: Failed to read block data\n",
341 			__func__);
342 		return ret;
343 	}
344 
345 	return 0;
346 }
347 
348 static void rmi_f34v7_parse_partition_table(struct f34_data *f34,
349 					    const void *partition_table,
350 					    struct block_count *blkcount,
351 					    struct physical_address *phyaddr)
352 {
353 	int i;
354 	int index;
355 	u16 partition_length;
356 	u16 physical_address;
357 	const struct partition_table *ptable;
358 
359 	for (i = 0; i < f34->v7.partitions; i++) {
360 		index = i * 8 + 2;
361 		ptable = partition_table + index;
362 		partition_length = le16_to_cpu(ptable->partition_length);
363 		physical_address = le16_to_cpu(ptable->start_physical_address);
364 		rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
365 			"%s: Partition entry %d: %*ph\n",
366 			__func__, i, sizeof(struct partition_table), ptable);
367 		switch (ptable->partition_id & 0x1f) {
368 		case CORE_CODE_PARTITION:
369 			blkcount->ui_firmware = partition_length;
370 			phyaddr->ui_firmware = physical_address;
371 			rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
372 				"%s: Core code block count: %d\n",
373 				__func__, blkcount->ui_firmware);
374 			break;
375 		case CORE_CONFIG_PARTITION:
376 			blkcount->ui_config = partition_length;
377 			phyaddr->ui_config = physical_address;
378 			rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
379 				"%s: Core config block count: %d\n",
380 				__func__, blkcount->ui_config);
381 			break;
382 		case DISPLAY_CONFIG_PARTITION:
383 			blkcount->dp_config = partition_length;
384 			phyaddr->dp_config = physical_address;
385 			rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
386 				"%s: Display config block count: %d\n",
387 				__func__, blkcount->dp_config);
388 			break;
389 		case FLASH_CONFIG_PARTITION:
390 			blkcount->fl_config = partition_length;
391 			rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
392 				"%s: Flash config block count: %d\n",
393 				__func__, blkcount->fl_config);
394 			break;
395 		case GUEST_CODE_PARTITION:
396 			blkcount->guest_code = partition_length;
397 			phyaddr->guest_code = physical_address;
398 			rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
399 				"%s: Guest code block count: %d\n",
400 				__func__, blkcount->guest_code);
401 			break;
402 		case GUEST_SERIALIZATION_PARTITION:
403 			blkcount->pm_config = partition_length;
404 			rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
405 				"%s: Guest serialization block count: %d\n",
406 				__func__, blkcount->pm_config);
407 			break;
408 		case GLOBAL_PARAMETERS_PARTITION:
409 			blkcount->bl_config = partition_length;
410 			rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
411 				"%s: Global parameters block count: %d\n",
412 				__func__, blkcount->bl_config);
413 			break;
414 		case DEVICE_CONFIG_PARTITION:
415 			blkcount->lockdown = partition_length;
416 			rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
417 				"%s: Device config block count: %d\n",
418 				__func__, blkcount->lockdown);
419 			break;
420 		}
421 	}
422 }
423 
424 static int rmi_f34v7_read_queries_bl_version(struct f34_data *f34)
425 {
426 	int ret;
427 	u8 base;
428 	int offset;
429 	u8 query_0;
430 	struct f34v7_query_1_7 query_1_7;
431 
432 	base = f34->fn->fd.query_base_addr;
433 
434 	ret = rmi_read_block(f34->fn->rmi_dev,
435 			base,
436 			&query_0,
437 			sizeof(query_0));
438 	if (ret < 0) {
439 		dev_err(&f34->fn->dev,
440 			"%s: Failed to read query 0\n", __func__);
441 		return ret;
442 	}
443 
444 	offset = (query_0 & 0x7) + 1;
445 
446 	ret = rmi_read_block(f34->fn->rmi_dev,
447 			base + offset,
448 			&query_1_7,
449 			sizeof(query_1_7));
450 	if (ret < 0) {
451 		dev_err(&f34->fn->dev, "%s: Failed to read queries 1 to 7\n",
452 			__func__);
453 		return ret;
454 	}
455 
456 	f34->bootloader_id[0] = query_1_7.bl_minor_revision;
457 	f34->bootloader_id[1] = query_1_7.bl_major_revision;
458 
459 	rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "Bootloader V%d.%d\n",
460 		f34->bootloader_id[1], f34->bootloader_id[0]);
461 
462 	return 0;
463 }
464 
465 static int rmi_f34v7_read_queries(struct f34_data *f34)
466 {
467 	int ret;
468 	int i;
469 	u8 base;
470 	int offset;
471 	u8 *ptable;
472 	u8 query_0;
473 	struct f34v7_query_1_7 query_1_7;
474 
475 	base = f34->fn->fd.query_base_addr;
476 
477 	ret = rmi_read_block(f34->fn->rmi_dev,
478 			base,
479 			&query_0,
480 			sizeof(query_0));
481 	if (ret < 0) {
482 		dev_err(&f34->fn->dev,
483 			"%s: Failed to read query 0\n", __func__);
484 		return ret;
485 	}
486 
487 	offset = (query_0 & 0x07) + 1;
488 
489 	ret = rmi_read_block(f34->fn->rmi_dev,
490 			base + offset,
491 			&query_1_7,
492 			sizeof(query_1_7));
493 	if (ret < 0) {
494 		dev_err(&f34->fn->dev, "%s: Failed to read queries 1 to 7\n",
495 			__func__);
496 		return ret;
497 	}
498 
499 	f34->bootloader_id[0] = query_1_7.bl_minor_revision;
500 	f34->bootloader_id[1] = query_1_7.bl_major_revision;
501 
502 	f34->v7.block_size = le16_to_cpu(query_1_7.block_size);
503 	f34->v7.flash_config_length =
504 			le16_to_cpu(query_1_7.flash_config_length);
505 	f34->v7.payload_length = le16_to_cpu(query_1_7.payload_length);
506 
507 	rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: f34->v7.block_size = %d\n",
508 		 __func__, f34->v7.block_size);
509 
510 	f34->v7.off.flash_status = V7_FLASH_STATUS_OFFSET;
511 	f34->v7.off.partition_id = V7_PARTITION_ID_OFFSET;
512 	f34->v7.off.block_number = V7_BLOCK_NUMBER_OFFSET;
513 	f34->v7.off.transfer_length = V7_TRANSFER_LENGTH_OFFSET;
514 	f34->v7.off.flash_cmd = V7_COMMAND_OFFSET;
515 	f34->v7.off.payload = V7_PAYLOAD_OFFSET;
516 
517 	f34->v7.has_display_cfg = query_1_7.partition_support[1] & HAS_DISP_CFG;
518 	f34->v7.has_guest_code =
519 			query_1_7.partition_support[1] & HAS_GUEST_CODE;
520 
521 	if (query_0 & HAS_CONFIG_ID) {
522 		u8 f34_ctrl[CONFIG_ID_SIZE];
523 
524 		ret = rmi_read_block(f34->fn->rmi_dev,
525 				f34->fn->fd.control_base_addr,
526 				f34_ctrl,
527 				sizeof(f34_ctrl));
528 		if (ret)
529 			return ret;
530 
531 		/* Eat leading zeros */
532 		for (i = 0; i < sizeof(f34_ctrl) - 1 && !f34_ctrl[i]; i++)
533 			/* Empty */;
534 
535 		snprintf(f34->configuration_id, sizeof(f34->configuration_id),
536 			 "%*phN", (int)sizeof(f34_ctrl) - i, f34_ctrl + i);
537 
538 		rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "Configuration ID: %s\n",
539 			f34->configuration_id);
540 	}
541 
542 	f34->v7.partitions = 0;
543 	for (i = 0; i < sizeof(query_1_7.partition_support); i++)
544 		f34->v7.partitions += hweight8(query_1_7.partition_support[i]);
545 
546 	rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: Supported partitions: %*ph\n",
547 		__func__, sizeof(query_1_7.partition_support),
548 		query_1_7.partition_support);
549 
550 
551 	f34->v7.partition_table_bytes = f34->v7.partitions * 8 + 2;
552 
553 	f34->v7.read_config_buf = devm_kzalloc(&f34->fn->dev,
554 			f34->v7.partition_table_bytes,
555 			GFP_KERNEL);
556 	if (!f34->v7.read_config_buf) {
557 		f34->v7.read_config_buf_size = 0;
558 		return -ENOMEM;
559 	}
560 
561 	f34->v7.read_config_buf_size = f34->v7.partition_table_bytes;
562 	ptable = f34->v7.read_config_buf;
563 
564 	ret = rmi_f34v7_read_partition_table(f34);
565 	if (ret < 0) {
566 		dev_err(&f34->fn->dev, "%s: Failed to read partition table\n",
567 				__func__);
568 		return ret;
569 	}
570 
571 	rmi_f34v7_parse_partition_table(f34, ptable,
572 					&f34->v7.blkcount, &f34->v7.phyaddr);
573 
574 	return 0;
575 }
576 
577 static int rmi_f34v7_check_ui_firmware_size(struct f34_data *f34)
578 {
579 	u16 block_count;
580 
581 	block_count = f34->v7.img.ui_firmware.size / f34->v7.block_size;
582 	f34->update_size += block_count;
583 
584 	if (block_count != f34->v7.blkcount.ui_firmware) {
585 		dev_err(&f34->fn->dev,
586 			"UI firmware size mismatch: %d != %d\n",
587 			block_count, f34->v7.blkcount.ui_firmware);
588 		return -EINVAL;
589 	}
590 
591 	return 0;
592 }
593 
594 static int rmi_f34v7_check_ui_config_size(struct f34_data *f34)
595 {
596 	u16 block_count;
597 
598 	block_count = f34->v7.img.ui_config.size / f34->v7.block_size;
599 	f34->update_size += block_count;
600 
601 	if (block_count != f34->v7.blkcount.ui_config) {
602 		dev_err(&f34->fn->dev, "UI config size mismatch\n");
603 		return -EINVAL;
604 	}
605 
606 	return 0;
607 }
608 
609 static int rmi_f34v7_check_dp_config_size(struct f34_data *f34)
610 {
611 	u16 block_count;
612 
613 	block_count = f34->v7.img.dp_config.size / f34->v7.block_size;
614 	f34->update_size += block_count;
615 
616 	if (block_count != f34->v7.blkcount.dp_config) {
617 		dev_err(&f34->fn->dev, "Display config size mismatch\n");
618 		return -EINVAL;
619 	}
620 
621 	return 0;
622 }
623 
624 static int rmi_f34v7_check_guest_code_size(struct f34_data *f34)
625 {
626 	u16 block_count;
627 
628 	block_count = f34->v7.img.guest_code.size / f34->v7.block_size;
629 	f34->update_size += block_count;
630 
631 	if (block_count != f34->v7.blkcount.guest_code) {
632 		dev_err(&f34->fn->dev, "Guest code size mismatch\n");
633 		return -EINVAL;
634 	}
635 
636 	return 0;
637 }
638 
639 static int rmi_f34v7_check_bl_config_size(struct f34_data *f34)
640 {
641 	u16 block_count;
642 
643 	block_count = f34->v7.img.bl_config.size / f34->v7.block_size;
644 	f34->update_size += block_count;
645 
646 	if (block_count != f34->v7.blkcount.bl_config) {
647 		dev_err(&f34->fn->dev, "Bootloader config size mismatch\n");
648 		return -EINVAL;
649 	}
650 
651 	return 0;
652 }
653 
654 static int rmi_f34v7_erase_config(struct f34_data *f34)
655 {
656 	int ret;
657 
658 	dev_info(&f34->fn->dev, "Erasing config...\n");
659 
660 	init_completion(&f34->v7.cmd_done);
661 
662 	switch (f34->v7.config_area) {
663 	case v7_UI_CONFIG_AREA:
664 		ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_UI_CONFIG);
665 		if (ret < 0)
666 			return ret;
667 		break;
668 	case v7_DP_CONFIG_AREA:
669 		ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_DISP_CONFIG);
670 		if (ret < 0)
671 			return ret;
672 		break;
673 	case v7_BL_CONFIG_AREA:
674 		ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_BL_CONFIG);
675 		if (ret < 0)
676 			return ret;
677 		break;
678 	}
679 
680 	ret = rmi_f34v7_wait_for_idle(f34, F34_ERASE_WAIT_MS);
681 	if (ret < 0)
682 		return ret;
683 
684 	return 0;
685 }
686 
687 static int rmi_f34v7_erase_guest_code(struct f34_data *f34)
688 {
689 	int ret;
690 
691 	dev_info(&f34->fn->dev, "Erasing guest code...\n");
692 
693 	init_completion(&f34->v7.cmd_done);
694 
695 	ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_GUEST_CODE);
696 	if (ret < 0)
697 		return ret;
698 
699 	ret = rmi_f34v7_wait_for_idle(f34, F34_ERASE_WAIT_MS);
700 	if (ret < 0)
701 		return ret;
702 
703 	return 0;
704 }
705 
706 static int rmi_f34v7_erase_all(struct f34_data *f34)
707 {
708 	int ret;
709 
710 	dev_info(&f34->fn->dev, "Erasing firmware...\n");
711 
712 	init_completion(&f34->v7.cmd_done);
713 
714 	ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_UI_FIRMWARE);
715 	if (ret < 0)
716 		return ret;
717 
718 	ret = rmi_f34v7_wait_for_idle(f34, F34_ERASE_WAIT_MS);
719 	if (ret < 0)
720 		return ret;
721 
722 	f34->v7.config_area = v7_UI_CONFIG_AREA;
723 	ret = rmi_f34v7_erase_config(f34);
724 	if (ret < 0)
725 		return ret;
726 
727 	if (f34->v7.has_display_cfg) {
728 		f34->v7.config_area = v7_DP_CONFIG_AREA;
729 		ret = rmi_f34v7_erase_config(f34);
730 		if (ret < 0)
731 			return ret;
732 	}
733 
734 	if (f34->v7.new_partition_table && f34->v7.has_guest_code) {
735 		ret = rmi_f34v7_erase_guest_code(f34);
736 		if (ret < 0)
737 			return ret;
738 	}
739 
740 	return 0;
741 }
742 
743 static int rmi_f34v7_read_blocks(struct f34_data *f34,
744 				 u16 block_cnt, u8 command)
745 {
746 	int ret;
747 	u8 base;
748 	__le16 length;
749 	u16 transfer;
750 	u16 max_transfer;
751 	u16 remaining = block_cnt;
752 	u16 block_number = 0;
753 	u16 index = 0;
754 
755 	base = f34->fn->fd.data_base_addr;
756 
757 	ret = rmi_f34v7_write_partition_id(f34, command);
758 	if (ret < 0)
759 		return ret;
760 
761 	ret = rmi_write_block(f34->fn->rmi_dev,
762 			base + f34->v7.off.block_number,
763 			&block_number, sizeof(block_number));
764 	if (ret < 0) {
765 		dev_err(&f34->fn->dev, "%s: Failed to write block number\n",
766 			__func__);
767 		return ret;
768 	}
769 
770 	max_transfer = min(f34->v7.payload_length,
771 			   (u16)(PAGE_SIZE / f34->v7.block_size));
772 
773 	do {
774 		transfer = min(remaining, max_transfer);
775 		put_unaligned_le16(transfer, &length);
776 
777 		ret = rmi_write_block(f34->fn->rmi_dev,
778 				base + f34->v7.off.transfer_length,
779 				&length, sizeof(length));
780 		if (ret < 0) {
781 			dev_err(&f34->fn->dev,
782 				"%s: Write transfer length fail (%d remaining)\n",
783 				__func__, remaining);
784 			return ret;
785 		}
786 
787 		init_completion(&f34->v7.cmd_done);
788 
789 		ret = rmi_f34v7_write_command(f34, command);
790 		if (ret < 0)
791 			return ret;
792 
793 		ret = rmi_f34v7_wait_for_idle(f34, F34_ENABLE_WAIT_MS);
794 		if (ret < 0)
795 			return ret;
796 
797 		ret = rmi_read_block(f34->fn->rmi_dev,
798 				base + f34->v7.off.payload,
799 				&f34->v7.read_config_buf[index],
800 				transfer * f34->v7.block_size);
801 		if (ret < 0) {
802 			dev_err(&f34->fn->dev,
803 				"%s: Read block failed (%d blks remaining)\n",
804 				__func__, remaining);
805 			return ret;
806 		}
807 
808 		index += (transfer * f34->v7.block_size);
809 		remaining -= transfer;
810 	} while (remaining);
811 
812 	return 0;
813 }
814 
815 static int rmi_f34v7_write_f34v7_blocks(struct f34_data *f34,
816 					const void *block_ptr, u16 block_cnt,
817 					u8 command)
818 {
819 	int ret;
820 	u8 base;
821 	__le16 length;
822 	u16 transfer;
823 	u16 max_transfer;
824 	u16 remaining = block_cnt;
825 	u16 block_number = 0;
826 
827 	base = f34->fn->fd.data_base_addr;
828 
829 	ret = rmi_f34v7_write_partition_id(f34, command);
830 	if (ret < 0)
831 		return ret;
832 
833 	ret = rmi_write_block(f34->fn->rmi_dev,
834 			base + f34->v7.off.block_number,
835 			&block_number, sizeof(block_number));
836 	if (ret < 0) {
837 		dev_err(&f34->fn->dev, "%s: Failed to write block number\n",
838 			__func__);
839 		return ret;
840 	}
841 
842 	if (f34->v7.payload_length > (PAGE_SIZE / f34->v7.block_size))
843 		max_transfer = PAGE_SIZE / f34->v7.block_size;
844 	else
845 		max_transfer = f34->v7.payload_length;
846 
847 	do {
848 		transfer = min(remaining, max_transfer);
849 		put_unaligned_le16(transfer, &length);
850 
851 		init_completion(&f34->v7.cmd_done);
852 
853 		ret = rmi_write_block(f34->fn->rmi_dev,
854 				base + f34->v7.off.transfer_length,
855 				&length, sizeof(length));
856 		if (ret < 0) {
857 			dev_err(&f34->fn->dev,
858 				"%s: Write transfer length fail (%d remaining)\n",
859 				__func__, remaining);
860 			return ret;
861 		}
862 
863 		ret = rmi_f34v7_write_command(f34, command);
864 		if (ret < 0)
865 			return ret;
866 
867 		ret = rmi_write_block(f34->fn->rmi_dev,
868 				base + f34->v7.off.payload,
869 				block_ptr, transfer * f34->v7.block_size);
870 		if (ret < 0) {
871 			dev_err(&f34->fn->dev,
872 				"%s: Failed writing data (%d blks remaining)\n",
873 				__func__, remaining);
874 			return ret;
875 		}
876 
877 		ret = rmi_f34v7_wait_for_idle(f34, F34_ENABLE_WAIT_MS);
878 		if (ret < 0)
879 			return ret;
880 
881 		block_ptr += (transfer * f34->v7.block_size);
882 		remaining -= transfer;
883 		f34->update_progress += transfer;
884 		f34->update_status = (f34->update_progress * 100) /
885 				     f34->update_size;
886 	} while (remaining);
887 
888 	return 0;
889 }
890 
891 static int rmi_f34v7_write_config(struct f34_data *f34)
892 {
893 	return rmi_f34v7_write_f34v7_blocks(f34, f34->v7.config_data,
894 					    f34->v7.config_block_count,
895 					    v7_CMD_WRITE_CONFIG);
896 }
897 
898 static int rmi_f34v7_write_ui_config(struct f34_data *f34)
899 {
900 	f34->v7.config_area = v7_UI_CONFIG_AREA;
901 	f34->v7.config_data = f34->v7.img.ui_config.data;
902 	f34->v7.config_size = f34->v7.img.ui_config.size;
903 	f34->v7.config_block_count = f34->v7.config_size / f34->v7.block_size;
904 
905 	return rmi_f34v7_write_config(f34);
906 }
907 
908 static int rmi_f34v7_write_dp_config(struct f34_data *f34)
909 {
910 	f34->v7.config_area = v7_DP_CONFIG_AREA;
911 	f34->v7.config_data = f34->v7.img.dp_config.data;
912 	f34->v7.config_size = f34->v7.img.dp_config.size;
913 	f34->v7.config_block_count = f34->v7.config_size / f34->v7.block_size;
914 
915 	return rmi_f34v7_write_config(f34);
916 }
917 
918 static int rmi_f34v7_write_guest_code(struct f34_data *f34)
919 {
920 	return rmi_f34v7_write_f34v7_blocks(f34, f34->v7.img.guest_code.data,
921 					    f34->v7.img.guest_code.size /
922 							f34->v7.block_size,
923 					    v7_CMD_WRITE_GUEST_CODE);
924 }
925 
926 static int rmi_f34v7_write_flash_config(struct f34_data *f34)
927 {
928 	int ret;
929 
930 	f34->v7.config_area = v7_FLASH_CONFIG_AREA;
931 	f34->v7.config_data = f34->v7.img.fl_config.data;
932 	f34->v7.config_size = f34->v7.img.fl_config.size;
933 	f34->v7.config_block_count = f34->v7.config_size / f34->v7.block_size;
934 
935 	if (f34->v7.config_block_count != f34->v7.blkcount.fl_config) {
936 		dev_err(&f34->fn->dev, "%s: Flash config size mismatch\n",
937 			__func__);
938 		return -EINVAL;
939 	}
940 
941 	init_completion(&f34->v7.cmd_done);
942 
943 	ret = rmi_f34v7_write_command(f34, v7_CMD_ERASE_FLASH_CONFIG);
944 	if (ret < 0)
945 		return ret;
946 
947 	rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
948 		"%s: Erase flash config command written\n", __func__);
949 
950 	ret = rmi_f34v7_wait_for_idle(f34, F34_WRITE_WAIT_MS);
951 	if (ret < 0)
952 		return ret;
953 
954 	ret = rmi_f34v7_write_config(f34);
955 	if (ret < 0)
956 		return ret;
957 
958 	return 0;
959 }
960 
961 static int rmi_f34v7_write_partition_table(struct f34_data *f34)
962 {
963 	u16 block_count;
964 	int ret;
965 
966 	block_count = f34->v7.blkcount.bl_config;
967 	f34->v7.config_area = v7_BL_CONFIG_AREA;
968 	f34->v7.config_size = f34->v7.block_size * block_count;
969 	devm_kfree(&f34->fn->dev, f34->v7.read_config_buf);
970 	f34->v7.read_config_buf = devm_kzalloc(&f34->fn->dev,
971 					       f34->v7.config_size, GFP_KERNEL);
972 	if (!f34->v7.read_config_buf) {
973 		f34->v7.read_config_buf_size = 0;
974 		return -ENOMEM;
975 	}
976 
977 	f34->v7.read_config_buf_size = f34->v7.config_size;
978 
979 	ret = rmi_f34v7_read_blocks(f34, block_count, v7_CMD_READ_CONFIG);
980 	if (ret < 0)
981 		return ret;
982 
983 	ret = rmi_f34v7_erase_config(f34);
984 	if (ret < 0)
985 		return ret;
986 
987 	ret = rmi_f34v7_write_flash_config(f34);
988 	if (ret < 0)
989 		return ret;
990 
991 	f34->v7.config_area = v7_BL_CONFIG_AREA;
992 	f34->v7.config_data = f34->v7.read_config_buf;
993 	f34->v7.config_size = f34->v7.img.bl_config.size;
994 	f34->v7.config_block_count = f34->v7.config_size / f34->v7.block_size;
995 
996 	ret = rmi_f34v7_write_config(f34);
997 	if (ret < 0)
998 		return ret;
999 
1000 	return 0;
1001 }
1002 
1003 static int rmi_f34v7_write_firmware(struct f34_data *f34)
1004 {
1005 	u16 blk_count;
1006 
1007 	blk_count = f34->v7.img.ui_firmware.size / f34->v7.block_size;
1008 
1009 	return rmi_f34v7_write_f34v7_blocks(f34, f34->v7.img.ui_firmware.data,
1010 					    blk_count, v7_CMD_WRITE_FW);
1011 }
1012 
1013 static void rmi_f34v7_compare_partition_tables(struct f34_data *f34)
1014 {
1015 	if (f34->v7.phyaddr.ui_firmware != f34->v7.img.phyaddr.ui_firmware) {
1016 		f34->v7.new_partition_table = true;
1017 		return;
1018 	}
1019 
1020 	if (f34->v7.phyaddr.ui_config != f34->v7.img.phyaddr.ui_config) {
1021 		f34->v7.new_partition_table = true;
1022 		return;
1023 	}
1024 
1025 	if (f34->v7.has_display_cfg &&
1026 	    f34->v7.phyaddr.dp_config != f34->v7.img.phyaddr.dp_config) {
1027 		f34->v7.new_partition_table = true;
1028 		return;
1029 	}
1030 
1031 	if (f34->v7.has_guest_code &&
1032 	    f34->v7.phyaddr.guest_code != f34->v7.img.phyaddr.guest_code) {
1033 		f34->v7.new_partition_table = true;
1034 		return;
1035 	}
1036 
1037 	f34->v7.new_partition_table = false;
1038 }
1039 
1040 static void rmi_f34v7_parse_img_header_10_bl_container(struct f34_data *f34,
1041 						       const void *image)
1042 {
1043 	int i;
1044 	int num_of_containers;
1045 	unsigned int addr;
1046 	unsigned int container_id;
1047 	unsigned int length;
1048 	const void *content;
1049 	const struct container_descriptor *descriptor;
1050 
1051 	num_of_containers = f34->v7.img.bootloader.size / 4 - 1;
1052 
1053 	for (i = 1; i <= num_of_containers; i++) {
1054 		addr = get_unaligned_le32(f34->v7.img.bootloader.data + i * 4);
1055 		descriptor = image + addr;
1056 		container_id = le16_to_cpu(descriptor->container_id);
1057 		content = image + le32_to_cpu(descriptor->content_address);
1058 		length = le32_to_cpu(descriptor->content_length);
1059 		switch (container_id) {
1060 		case BL_CONFIG_CONTAINER:
1061 		case GLOBAL_PARAMETERS_CONTAINER:
1062 			f34->v7.img.bl_config.data = content;
1063 			f34->v7.img.bl_config.size = length;
1064 			break;
1065 		case BL_LOCKDOWN_INFO_CONTAINER:
1066 		case DEVICE_CONFIG_CONTAINER:
1067 			f34->v7.img.lockdown.data = content;
1068 			f34->v7.img.lockdown.size = length;
1069 			break;
1070 		default:
1071 			break;
1072 		}
1073 	}
1074 }
1075 
1076 static void rmi_f34v7_parse_image_header_10(struct f34_data *f34)
1077 {
1078 	unsigned int i;
1079 	unsigned int num_of_containers;
1080 	unsigned int addr;
1081 	unsigned int offset;
1082 	unsigned int container_id;
1083 	unsigned int length;
1084 	const void *image = f34->v7.image;
1085 	const u8 *content;
1086 	const struct container_descriptor *descriptor;
1087 	const struct image_header_10 *header = image;
1088 
1089 	f34->v7.img.checksum = le32_to_cpu(header->checksum);
1090 
1091 	rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: f34->v7.img.checksum=%X\n",
1092 		__func__, f34->v7.img.checksum);
1093 
1094 	/* address of top level container */
1095 	offset = le32_to_cpu(header->top_level_container_start_addr);
1096 	descriptor = image + offset;
1097 
1098 	/* address of top level container content */
1099 	offset = le32_to_cpu(descriptor->content_address);
1100 	num_of_containers = le32_to_cpu(descriptor->content_length) / 4;
1101 
1102 	for (i = 0; i < num_of_containers; i++) {
1103 		addr = get_unaligned_le32(image + offset);
1104 		offset += 4;
1105 		descriptor = image + addr;
1106 		container_id = le16_to_cpu(descriptor->container_id);
1107 		content = image + le32_to_cpu(descriptor->content_address);
1108 		length = le32_to_cpu(descriptor->content_length);
1109 
1110 		rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
1111 			"%s: container_id=%d, length=%d\n", __func__,
1112 			container_id, length);
1113 
1114 		switch (container_id) {
1115 		case UI_CONTAINER:
1116 		case CORE_CODE_CONTAINER:
1117 			f34->v7.img.ui_firmware.data = content;
1118 			f34->v7.img.ui_firmware.size = length;
1119 			break;
1120 		case UI_CONFIG_CONTAINER:
1121 		case CORE_CONFIG_CONTAINER:
1122 			f34->v7.img.ui_config.data = content;
1123 			f34->v7.img.ui_config.size = length;
1124 			break;
1125 		case BL_CONTAINER:
1126 			f34->v7.img.bl_version = *content;
1127 			f34->v7.img.bootloader.data = content;
1128 			f34->v7.img.bootloader.size = length;
1129 			rmi_f34v7_parse_img_header_10_bl_container(f34, image);
1130 			break;
1131 		case GUEST_CODE_CONTAINER:
1132 			f34->v7.img.contains_guest_code = true;
1133 			f34->v7.img.guest_code.data = content;
1134 			f34->v7.img.guest_code.size = length;
1135 			break;
1136 		case DISPLAY_CONFIG_CONTAINER:
1137 			f34->v7.img.contains_display_cfg = true;
1138 			f34->v7.img.dp_config.data = content;
1139 			f34->v7.img.dp_config.size = length;
1140 			break;
1141 		case FLASH_CONFIG_CONTAINER:
1142 			f34->v7.img.contains_flash_config = true;
1143 			f34->v7.img.fl_config.data = content;
1144 			f34->v7.img.fl_config.size = length;
1145 			break;
1146 		case GENERAL_INFORMATION_CONTAINER:
1147 			f34->v7.img.contains_firmware_id = true;
1148 			f34->v7.img.firmware_id =
1149 				get_unaligned_le32(content + 4);
1150 			break;
1151 		default:
1152 			break;
1153 		}
1154 	}
1155 }
1156 
1157 static int rmi_f34v7_parse_image_info(struct f34_data *f34)
1158 {
1159 	const struct image_header_10 *header = f34->v7.image;
1160 
1161 	memset(&f34->v7.img, 0x00, sizeof(f34->v7.img));
1162 
1163 	rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev,
1164 		"%s: header->major_header_version = %d\n",
1165 		__func__, header->major_header_version);
1166 
1167 	switch (header->major_header_version) {
1168 	case IMAGE_HEADER_VERSION_10:
1169 		rmi_f34v7_parse_image_header_10(f34);
1170 		break;
1171 	default:
1172 		dev_err(&f34->fn->dev, "Unsupported image file format %02X\n",
1173 			header->major_header_version);
1174 		return -EINVAL;
1175 	}
1176 
1177 	if (!f34->v7.img.contains_flash_config) {
1178 		dev_err(&f34->fn->dev, "%s: No flash config in fw image\n",
1179 			__func__);
1180 		return -EINVAL;
1181 	}
1182 
1183 	rmi_f34v7_parse_partition_table(f34, f34->v7.img.fl_config.data,
1184 			&f34->v7.img.blkcount, &f34->v7.img.phyaddr);
1185 
1186 	rmi_f34v7_compare_partition_tables(f34);
1187 
1188 	return 0;
1189 }
1190 
1191 int rmi_f34v7_do_reflash(struct f34_data *f34, const struct firmware *fw)
1192 {
1193 	int ret;
1194 
1195 	rmi_f34v7_read_queries_bl_version(f34);
1196 
1197 	f34->v7.image = fw->data;
1198 	f34->update_progress = 0;
1199 	f34->update_size = 0;
1200 
1201 	ret = rmi_f34v7_parse_image_info(f34);
1202 	if (ret < 0)
1203 		goto fail;
1204 
1205 	if (!f34->v7.new_partition_table) {
1206 		ret = rmi_f34v7_check_ui_firmware_size(f34);
1207 		if (ret < 0)
1208 			goto fail;
1209 
1210 		ret = rmi_f34v7_check_ui_config_size(f34);
1211 		if (ret < 0)
1212 			goto fail;
1213 
1214 		if (f34->v7.has_display_cfg &&
1215 		    f34->v7.img.contains_display_cfg) {
1216 			ret = rmi_f34v7_check_dp_config_size(f34);
1217 			if (ret < 0)
1218 				goto fail;
1219 		}
1220 
1221 		if (f34->v7.has_guest_code && f34->v7.img.contains_guest_code) {
1222 			ret = rmi_f34v7_check_guest_code_size(f34);
1223 			if (ret < 0)
1224 				goto fail;
1225 		}
1226 	} else {
1227 		ret = rmi_f34v7_check_bl_config_size(f34);
1228 		if (ret < 0)
1229 			goto fail;
1230 	}
1231 
1232 	ret = rmi_f34v7_erase_all(f34);
1233 	if (ret < 0)
1234 		goto fail;
1235 
1236 	if (f34->v7.new_partition_table) {
1237 		ret = rmi_f34v7_write_partition_table(f34);
1238 		if (ret < 0)
1239 			goto fail;
1240 		dev_info(&f34->fn->dev, "%s: Partition table programmed\n",
1241 			 __func__);
1242 	}
1243 
1244 	dev_info(&f34->fn->dev, "Writing firmware (%d bytes)...\n",
1245 		 f34->v7.img.ui_firmware.size);
1246 
1247 	ret = rmi_f34v7_write_firmware(f34);
1248 	if (ret < 0)
1249 		goto fail;
1250 
1251 	dev_info(&f34->fn->dev, "Writing config (%d bytes)...\n",
1252 		 f34->v7.img.ui_config.size);
1253 
1254 	f34->v7.config_area = v7_UI_CONFIG_AREA;
1255 	ret = rmi_f34v7_write_ui_config(f34);
1256 	if (ret < 0)
1257 		goto fail;
1258 
1259 	if (f34->v7.has_display_cfg && f34->v7.img.contains_display_cfg) {
1260 		dev_info(&f34->fn->dev, "Writing display config...\n");
1261 
1262 		ret = rmi_f34v7_write_dp_config(f34);
1263 		if (ret < 0)
1264 			goto fail;
1265 	}
1266 
1267 	if (f34->v7.new_partition_table) {
1268 		if (f34->v7.has_guest_code && f34->v7.img.contains_guest_code) {
1269 			dev_info(&f34->fn->dev, "Writing guest code...\n");
1270 
1271 			ret = rmi_f34v7_write_guest_code(f34);
1272 			if (ret < 0)
1273 				goto fail;
1274 		}
1275 	}
1276 
1277 fail:
1278 	return ret;
1279 }
1280 
1281 static int rmi_f34v7_enter_flash_prog(struct f34_data *f34)
1282 {
1283 	int ret;
1284 
1285 	f34->fn->rmi_dev->driver->set_irq_bits(f34->fn->rmi_dev, f34->fn->irq_mask);
1286 
1287 	ret = rmi_f34v7_read_flash_status(f34);
1288 	if (ret < 0)
1289 		return ret;
1290 
1291 	if (f34->v7.in_bl_mode)
1292 		return 0;
1293 
1294 	init_completion(&f34->v7.cmd_done);
1295 
1296 	ret = rmi_f34v7_write_command(f34, v7_CMD_ENABLE_FLASH_PROG);
1297 	if (ret < 0)
1298 		return ret;
1299 
1300 	ret = rmi_f34v7_wait_for_idle(f34, F34_ENABLE_WAIT_MS);
1301 	if (ret < 0)
1302 		return ret;
1303 
1304 	return 0;
1305 }
1306 
1307 int rmi_f34v7_start_reflash(struct f34_data *f34, const struct firmware *fw)
1308 {
1309 	int ret = 0;
1310 
1311 	f34->fn->rmi_dev->driver->set_irq_bits(f34->fn->rmi_dev, f34->fn->irq_mask);
1312 
1313 	f34->v7.config_area = v7_UI_CONFIG_AREA;
1314 	f34->v7.image = fw->data;
1315 
1316 	ret = rmi_f34v7_parse_image_info(f34);
1317 	if (ret < 0)
1318 		goto exit;
1319 
1320 	if (!f34->v7.force_update && f34->v7.new_partition_table) {
1321 		dev_err(&f34->fn->dev, "%s: Partition table mismatch\n",
1322 				__func__);
1323 		ret = -EINVAL;
1324 		goto exit;
1325 	}
1326 
1327 	dev_info(&f34->fn->dev, "Firmware image OK\n");
1328 
1329 	ret = rmi_f34v7_read_flash_status(f34);
1330 	if (ret < 0)
1331 		goto exit;
1332 
1333 	if (f34->v7.in_bl_mode) {
1334 		dev_info(&f34->fn->dev, "%s: Device in bootloader mode\n",
1335 				__func__);
1336 	}
1337 
1338 	rmi_f34v7_enter_flash_prog(f34);
1339 
1340 	return 0;
1341 
1342 exit:
1343 	return ret;
1344 }
1345 
1346 int rmi_f34v7_probe(struct f34_data *f34)
1347 {
1348 	int ret;
1349 
1350 	/* Read bootloader version */
1351 	ret = rmi_read_block(f34->fn->rmi_dev,
1352 			f34->fn->fd.query_base_addr + V7_BOOTLOADER_ID_OFFSET,
1353 			f34->bootloader_id,
1354 			sizeof(f34->bootloader_id));
1355 	if (ret < 0) {
1356 		dev_err(&f34->fn->dev, "%s: Failed to read bootloader ID\n",
1357 			__func__);
1358 		return ret;
1359 	}
1360 
1361 	if (f34->bootloader_id[1] == '5') {
1362 		f34->bl_version = 5;
1363 	} else if (f34->bootloader_id[1] == '6') {
1364 		f34->bl_version = 6;
1365 	} else if (f34->bootloader_id[1] == 7) {
1366 		f34->bl_version = 7;
1367 	} else {
1368 		dev_err(&f34->fn->dev, "%s: Unrecognized bootloader version\n",
1369 				__func__);
1370 		return -EINVAL;
1371 	}
1372 
1373 	memset(&f34->v7.blkcount, 0x00, sizeof(f34->v7.blkcount));
1374 	memset(&f34->v7.phyaddr, 0x00, sizeof(f34->v7.phyaddr));
1375 
1376 	init_completion(&f34->v7.cmd_done);
1377 
1378 	ret = rmi_f34v7_read_queries(f34);
1379 	if (ret < 0)
1380 		return ret;
1381 
1382 	f34->v7.force_update = true;
1383 	return 0;
1384 }
1385