blob: f1b147c96d44277691b1bd4f6eb2e5401c7e0035 [file] [log] [blame]
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -07001/*
Avaneesh Kumar Dwivedi90a068e2017-01-30 20:33:08 +05302 * Qualcomm ADSP/SLPI Peripheral Image Loader for MSM8974 and MSM8996
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -07003 *
4 * Copyright (C) 2016 Linaro Ltd
5 * Copyright (C) 2014 Sony Mobile Communications AB
6 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 */
17
Sarangdhar Joshif33a7352016-10-25 13:57:26 -070018#include <linux/clk.h>
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070019#include <linux/firmware.h>
20#include <linux/interrupt.h>
21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/of_address.h>
24#include <linux/of_device.h>
25#include <linux/platform_device.h>
26#include <linux/qcom_scm.h>
27#include <linux/regulator/consumer.h>
28#include <linux/remoteproc.h>
Bjorn Andersson2aad40d2017-01-27 03:12:57 -080029#include <linux/soc/qcom/mdt_loader.h>
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070030#include <linux/soc/qcom/smem.h>
31#include <linux/soc/qcom/smem_state.h>
32
Bjorn Anderssonbde440e2017-01-27 02:28:32 -080033#include "qcom_common.h"
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070034#include "remoteproc_internal.h"
35
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +053036struct adsp_data {
37 int crash_reason_smem;
38 const char *firmware_name;
39 int pas_id;
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +053040 bool has_aggre2_clk;
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +053041};
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070042
43struct qcom_adsp {
44 struct device *dev;
45 struct rproc *rproc;
46
47 int wdog_irq;
48 int fatal_irq;
49 int ready_irq;
50 int handover_irq;
51 int stop_ack_irq;
52
53 struct qcom_smem_state *state;
54 unsigned stop_bit;
55
Sarangdhar Joshif33a7352016-10-25 13:57:26 -070056 struct clk *xo;
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +053057 struct clk *aggre2_clk;
Sarangdhar Joshif33a7352016-10-25 13:57:26 -070058
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070059 struct regulator *cx_supply;
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +053060 struct regulator *px_supply;
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070061
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +053062 int pas_id;
63 int crash_reason_smem;
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +053064 bool has_aggre2_clk;
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +053065
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070066 struct completion start_done;
67 struct completion stop_done;
68
69 phys_addr_t mem_phys;
70 phys_addr_t mem_reloc;
71 void *mem_region;
72 size_t mem_size;
Bjorn Andersson4b489212017-01-29 14:05:50 -080073
74 struct qcom_rproc_subdev smd_subdev;
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070075};
76
77static int adsp_load(struct rproc *rproc, const struct firmware *fw)
78{
79 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070080
Bjorn Andersson7f0dd072017-01-27 02:17:23 -080081 return qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
82 adsp->mem_region, adsp->mem_phys, adsp->mem_size);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070083}
84
85static const struct rproc_fw_ops adsp_fw_ops = {
86 .find_rsc_table = qcom_mdt_find_rsc_table,
87 .load = adsp_load,
88};
89
90static int adsp_start(struct rproc *rproc)
91{
92 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
93 int ret;
94
Sarangdhar Joshif33a7352016-10-25 13:57:26 -070095 ret = clk_prepare_enable(adsp->xo);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -070096 if (ret)
97 return ret;
98
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +053099 ret = clk_prepare_enable(adsp->aggre2_clk);
100 if (ret)
101 goto disable_xo_clk;
102
Sarangdhar Joshif33a7352016-10-25 13:57:26 -0700103 ret = regulator_enable(adsp->cx_supply);
104 if (ret)
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +0530105 goto disable_aggre2_clk;
106
107 ret = regulator_enable(adsp->px_supply);
108 if (ret)
109 goto disable_cx_supply;
Sarangdhar Joshif33a7352016-10-25 13:57:26 -0700110
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530111 ret = qcom_scm_pas_auth_and_reset(adsp->pas_id);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700112 if (ret) {
113 dev_err(adsp->dev,
114 "failed to authenticate image and release reset\n");
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +0530115 goto disable_px_supply;
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700116 }
117
118 ret = wait_for_completion_timeout(&adsp->start_done,
119 msecs_to_jiffies(5000));
120 if (!ret) {
121 dev_err(adsp->dev, "start timed out\n");
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530122 qcom_scm_pas_shutdown(adsp->pas_id);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700123 ret = -ETIMEDOUT;
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +0530124 goto disable_px_supply;
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700125 }
126
127 ret = 0;
128
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +0530129disable_px_supply:
130 regulator_disable(adsp->px_supply);
131disable_cx_supply:
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700132 regulator_disable(adsp->cx_supply);
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +0530133disable_aggre2_clk:
134 clk_disable_unprepare(adsp->aggre2_clk);
135disable_xo_clk:
Sarangdhar Joshif33a7352016-10-25 13:57:26 -0700136 clk_disable_unprepare(adsp->xo);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700137
138 return ret;
139}
140
141static int adsp_stop(struct rproc *rproc)
142{
143 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
144 int ret;
145
146 qcom_smem_state_update_bits(adsp->state,
147 BIT(adsp->stop_bit),
148 BIT(adsp->stop_bit));
149
150 ret = wait_for_completion_timeout(&adsp->stop_done,
151 msecs_to_jiffies(5000));
152 if (ret == 0)
153 dev_err(adsp->dev, "timed out on wait\n");
154
155 qcom_smem_state_update_bits(adsp->state,
156 BIT(adsp->stop_bit),
157 0);
158
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530159 ret = qcom_scm_pas_shutdown(adsp->pas_id);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700160 if (ret)
161 dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
162
163 return ret;
164}
165
166static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
167{
168 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
169 int offset;
170
171 offset = da - adsp->mem_reloc;
172 if (offset < 0 || offset + len > adsp->mem_size)
173 return NULL;
174
175 return adsp->mem_region + offset;
176}
177
178static const struct rproc_ops adsp_ops = {
179 .start = adsp_start,
180 .stop = adsp_stop,
181 .da_to_va = adsp_da_to_va,
182};
183
184static irqreturn_t adsp_wdog_interrupt(int irq, void *dev)
185{
186 struct qcom_adsp *adsp = dev;
187
188 rproc_report_crash(adsp->rproc, RPROC_WATCHDOG);
189
190 return IRQ_HANDLED;
191}
192
193static irqreturn_t adsp_fatal_interrupt(int irq, void *dev)
194{
195 struct qcom_adsp *adsp = dev;
196 size_t len;
197 char *msg;
198
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530199 msg = qcom_smem_get(QCOM_SMEM_HOST_ANY, adsp->crash_reason_smem, &len);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700200 if (!IS_ERR(msg) && len > 0 && msg[0])
201 dev_err(adsp->dev, "fatal error received: %s\n", msg);
202
203 rproc_report_crash(adsp->rproc, RPROC_FATAL_ERROR);
204
205 if (!IS_ERR(msg))
206 msg[0] = '\0';
207
208 return IRQ_HANDLED;
209}
210
211static irqreturn_t adsp_ready_interrupt(int irq, void *dev)
212{
213 return IRQ_HANDLED;
214}
215
216static irqreturn_t adsp_handover_interrupt(int irq, void *dev)
217{
218 struct qcom_adsp *adsp = dev;
219
220 complete(&adsp->start_done);
221
222 return IRQ_HANDLED;
223}
224
225static irqreturn_t adsp_stop_ack_interrupt(int irq, void *dev)
226{
227 struct qcom_adsp *adsp = dev;
228
229 complete(&adsp->stop_done);
230
231 return IRQ_HANDLED;
232}
233
Sarangdhar Joshif33a7352016-10-25 13:57:26 -0700234static int adsp_init_clock(struct qcom_adsp *adsp)
235{
236 int ret;
237
238 adsp->xo = devm_clk_get(adsp->dev, "xo");
239 if (IS_ERR(adsp->xo)) {
240 ret = PTR_ERR(adsp->xo);
241 if (ret != -EPROBE_DEFER)
242 dev_err(adsp->dev, "failed to get xo clock");
243 return ret;
244 }
245
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +0530246 if (adsp->has_aggre2_clk) {
247 adsp->aggre2_clk = devm_clk_get(adsp->dev, "aggre2");
248 if (IS_ERR(adsp->aggre2_clk)) {
249 ret = PTR_ERR(adsp->aggre2_clk);
250 if (ret != -EPROBE_DEFER)
251 dev_err(adsp->dev,
252 "failed to get aggre2 clock");
253 return ret;
254 }
255 }
256
Sarangdhar Joshif33a7352016-10-25 13:57:26 -0700257 return 0;
258}
259
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700260static int adsp_init_regulator(struct qcom_adsp *adsp)
261{
262 adsp->cx_supply = devm_regulator_get(adsp->dev, "cx");
263 if (IS_ERR(adsp->cx_supply))
264 return PTR_ERR(adsp->cx_supply);
265
266 regulator_set_load(adsp->cx_supply, 100000);
267
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +0530268 adsp->px_supply = devm_regulator_get(adsp->dev, "px");
269 if (IS_ERR(adsp->px_supply))
270 return PTR_ERR(adsp->px_supply);
271
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700272 return 0;
273}
274
275static int adsp_request_irq(struct qcom_adsp *adsp,
276 struct platform_device *pdev,
277 const char *name,
278 irq_handler_t thread_fn)
279{
280 int ret;
281
282 ret = platform_get_irq_byname(pdev, name);
283 if (ret < 0) {
284 dev_err(&pdev->dev, "no %s IRQ defined\n", name);
285 return ret;
286 }
287
288 ret = devm_request_threaded_irq(&pdev->dev, ret,
289 NULL, thread_fn,
290 IRQF_ONESHOT,
291 "adsp", adsp);
292 if (ret)
293 dev_err(&pdev->dev, "request %s IRQ failed\n", name);
294
295 return ret;
296}
297
298static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
299{
300 struct device_node *node;
301 struct resource r;
302 int ret;
303
304 node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
305 if (!node) {
306 dev_err(adsp->dev, "no memory-region specified\n");
307 return -EINVAL;
308 }
309
310 ret = of_address_to_resource(node, 0, &r);
311 if (ret)
312 return ret;
313
314 adsp->mem_phys = adsp->mem_reloc = r.start;
315 adsp->mem_size = resource_size(&r);
316 adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size);
317 if (!adsp->mem_region) {
318 dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
319 &r.start, adsp->mem_size);
320 return -EBUSY;
321 }
322
323 return 0;
324}
325
326static int adsp_probe(struct platform_device *pdev)
327{
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530328 const struct adsp_data *desc;
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700329 struct qcom_adsp *adsp;
330 struct rproc *rproc;
331 int ret;
332
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530333 desc = of_device_get_match_data(&pdev->dev);
334 if (!desc)
335 return -EINVAL;
336
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700337 if (!qcom_scm_is_available())
338 return -EPROBE_DEFER;
339
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530340 if (!qcom_scm_pas_supported(desc->pas_id)) {
341 dev_err(&pdev->dev, "PAS is not available for subsystem\n");
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700342 return -ENXIO;
343 }
344
345 rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530346 desc->firmware_name, sizeof(*adsp));
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700347 if (!rproc) {
348 dev_err(&pdev->dev, "unable to allocate remoteproc\n");
349 return -ENOMEM;
350 }
351
352 rproc->fw_ops = &adsp_fw_ops;
353
354 adsp = (struct qcom_adsp *)rproc->priv;
355 adsp->dev = &pdev->dev;
356 adsp->rproc = rproc;
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530357 adsp->pas_id = desc->pas_id;
358 adsp->crash_reason_smem = desc->crash_reason_smem;
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +0530359 adsp->has_aggre2_clk = desc->has_aggre2_clk;
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700360 platform_set_drvdata(pdev, adsp);
361
362 init_completion(&adsp->start_done);
363 init_completion(&adsp->stop_done);
364
365 ret = adsp_alloc_memory_region(adsp);
366 if (ret)
367 goto free_rproc;
368
Sarangdhar Joshif33a7352016-10-25 13:57:26 -0700369 ret = adsp_init_clock(adsp);
370 if (ret)
371 goto free_rproc;
372
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700373 ret = adsp_init_regulator(adsp);
374 if (ret)
375 goto free_rproc;
376
377 ret = adsp_request_irq(adsp, pdev, "wdog", adsp_wdog_interrupt);
378 if (ret < 0)
379 goto free_rproc;
380 adsp->wdog_irq = ret;
381
382 ret = adsp_request_irq(adsp, pdev, "fatal", adsp_fatal_interrupt);
383 if (ret < 0)
384 goto free_rproc;
385 adsp->fatal_irq = ret;
386
387 ret = adsp_request_irq(adsp, pdev, "ready", adsp_ready_interrupt);
388 if (ret < 0)
389 goto free_rproc;
390 adsp->ready_irq = ret;
391
392 ret = adsp_request_irq(adsp, pdev, "handover", adsp_handover_interrupt);
393 if (ret < 0)
394 goto free_rproc;
395 adsp->handover_irq = ret;
396
397 ret = adsp_request_irq(adsp, pdev, "stop-ack", adsp_stop_ack_interrupt);
398 if (ret < 0)
399 goto free_rproc;
400 adsp->stop_ack_irq = ret;
401
402 adsp->state = qcom_smem_state_get(&pdev->dev, "stop",
403 &adsp->stop_bit);
404 if (IS_ERR(adsp->state)) {
405 ret = PTR_ERR(adsp->state);
406 goto free_rproc;
407 }
408
Bjorn Andersson4b489212017-01-29 14:05:50 -0800409 qcom_add_smd_subdev(rproc, &adsp->smd_subdev);
410
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700411 ret = rproc_add(rproc);
412 if (ret)
413 goto free_rproc;
414
415 return 0;
416
417free_rproc:
Bjorn Andersson90a80d82016-11-19 22:42:55 -0800418 rproc_free(rproc);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700419
420 return ret;
421}
422
423static int adsp_remove(struct platform_device *pdev)
424{
425 struct qcom_adsp *adsp = platform_get_drvdata(pdev);
426
427 qcom_smem_state_put(adsp->state);
428 rproc_del(adsp->rproc);
Bjorn Andersson4b489212017-01-29 14:05:50 -0800429
430 qcom_remove_smd_subdev(adsp->rproc, &adsp->smd_subdev);
Bjorn Andersson90a80d82016-11-19 22:42:55 -0800431 rproc_free(adsp->rproc);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700432
433 return 0;
434}
435
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530436static const struct adsp_data adsp_resource_init = {
437 .crash_reason_smem = 423,
438 .firmware_name = "adsp.mdt",
439 .pas_id = 1,
Avaneesh Kumar Dwivedie323fc02017-01-30 20:33:07 +0530440 .has_aggre2_clk = false,
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530441};
442
Avaneesh Kumar Dwivedi90a068e2017-01-30 20:33:08 +0530443static const struct adsp_data slpi_resource_init = {
444 .crash_reason_smem = 424,
445 .firmware_name = "slpi.mdt",
446 .pas_id = 12,
447 .has_aggre2_clk = true,
448};
449
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700450static const struct of_device_id adsp_of_match[] = {
Avaneesh Kumar Dwivedic7715e42017-01-30 20:33:06 +0530451 { .compatible = "qcom,msm8974-adsp-pil", .data = &adsp_resource_init},
452 { .compatible = "qcom,msm8996-adsp-pil", .data = &adsp_resource_init},
Avaneesh Kumar Dwivedi90a068e2017-01-30 20:33:08 +0530453 { .compatible = "qcom,msm8996-slpi-pil", .data = &slpi_resource_init},
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700454 { },
455};
Bjorn Andersson62423472016-11-19 22:41:56 -0800456MODULE_DEVICE_TABLE(of, adsp_of_match);
Bjorn Anderssonb9e718e2016-08-22 22:57:44 -0700457
458static struct platform_driver adsp_driver = {
459 .probe = adsp_probe,
460 .remove = adsp_remove,
461 .driver = {
462 .name = "qcom_adsp_pil",
463 .of_match_table = adsp_of_match,
464 },
465};
466
467module_platform_driver(adsp_driver);
468MODULE_DESCRIPTION("Qualcomm MSM8974/MSM8996 ADSP Peripherial Image Loader");
469MODULE_LICENSE("GPL v2");