1 // SPDX-License-Identifier: GPL-2.0-only
3 * Qualcomm ADSP/SLPI Peripheral Image Loader for MSM8974 and MSM8996
5 * Copyright (C) 2016 Linaro Ltd
6 * Copyright (C) 2014 Sony Mobile Communications AB
7 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
10 #include <linux/clk.h>
11 #include <linux/firmware.h>
12 #include <linux/interrupt.h>
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/of_address.h>
16 #include <linux/of_device.h>
17 #include <linux/platform_device.h>
18 #include <linux/qcom_scm.h>
19 #include <linux/regulator/consumer.h>
20 #include <linux/remoteproc.h>
21 #include <linux/soc/qcom/mdt_loader.h>
22 #include <linux/soc/qcom/smem.h>
23 #include <linux/soc/qcom/smem_state.h>
25 #include "qcom_common.h"
26 #include "qcom_q6v5.h"
27 #include "remoteproc_internal.h"
30 int crash_reason_smem;
31 const char *firmware_name;
36 const char *sysmon_name;
44 struct qcom_q6v5 q6v5;
47 struct clk *aggre2_clk;
49 struct regulator *cx_supply;
50 struct regulator *px_supply;
53 int crash_reason_smem;
56 struct completion start_done;
57 struct completion stop_done;
60 phys_addr_t mem_reloc;
64 struct qcom_rproc_glink glink_subdev;
65 struct qcom_rproc_subdev smd_subdev;
66 struct qcom_rproc_ssr ssr_subdev;
67 struct qcom_sysmon *sysmon;
70 static int adsp_load(struct rproc *rproc, const struct firmware *fw)
72 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
74 return qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
75 adsp->mem_region, adsp->mem_phys, adsp->mem_size,
80 static int adsp_start(struct rproc *rproc)
82 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
85 qcom_q6v5_prepare(&adsp->q6v5);
87 ret = clk_prepare_enable(adsp->xo);
91 ret = clk_prepare_enable(adsp->aggre2_clk);
95 ret = regulator_enable(adsp->cx_supply);
97 goto disable_aggre2_clk;
99 ret = regulator_enable(adsp->px_supply);
101 goto disable_cx_supply;
103 ret = qcom_scm_pas_auth_and_reset(adsp->pas_id);
106 "failed to authenticate image and release reset\n");
107 goto disable_px_supply;
110 ret = qcom_q6v5_wait_for_start(&adsp->q6v5, msecs_to_jiffies(5000));
111 if (ret == -ETIMEDOUT) {
112 dev_err(adsp->dev, "start timed out\n");
113 qcom_scm_pas_shutdown(adsp->pas_id);
114 goto disable_px_supply;
120 regulator_disable(adsp->px_supply);
122 regulator_disable(adsp->cx_supply);
124 clk_disable_unprepare(adsp->aggre2_clk);
126 clk_disable_unprepare(adsp->xo);
131 static void qcom_pas_handover(struct qcom_q6v5 *q6v5)
133 struct qcom_adsp *adsp = container_of(q6v5, struct qcom_adsp, q6v5);
135 regulator_disable(adsp->px_supply);
136 regulator_disable(adsp->cx_supply);
137 clk_disable_unprepare(adsp->aggre2_clk);
138 clk_disable_unprepare(adsp->xo);
141 static int adsp_stop(struct rproc *rproc)
143 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
147 ret = qcom_q6v5_request_stop(&adsp->q6v5);
148 if (ret == -ETIMEDOUT)
149 dev_err(adsp->dev, "timed out on wait\n");
151 ret = qcom_scm_pas_shutdown(adsp->pas_id);
153 dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
155 handover = qcom_q6v5_unprepare(&adsp->q6v5);
157 qcom_pas_handover(&adsp->q6v5);
162 static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len)
164 struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
167 offset = da - adsp->mem_reloc;
168 if (offset < 0 || offset + len > adsp->mem_size)
171 return adsp->mem_region + offset;
174 static const struct rproc_ops adsp_ops = {
177 .da_to_va = adsp_da_to_va,
178 .parse_fw = qcom_register_dump_segments,
182 static int adsp_init_clock(struct qcom_adsp *adsp)
186 adsp->xo = devm_clk_get(adsp->dev, "xo");
187 if (IS_ERR(adsp->xo)) {
188 ret = PTR_ERR(adsp->xo);
189 if (ret != -EPROBE_DEFER)
190 dev_err(adsp->dev, "failed to get xo clock");
194 if (adsp->has_aggre2_clk) {
195 adsp->aggre2_clk = devm_clk_get(adsp->dev, "aggre2");
196 if (IS_ERR(adsp->aggre2_clk)) {
197 ret = PTR_ERR(adsp->aggre2_clk);
198 if (ret != -EPROBE_DEFER)
200 "failed to get aggre2 clock");
208 static int adsp_init_regulator(struct qcom_adsp *adsp)
210 adsp->cx_supply = devm_regulator_get(adsp->dev, "cx");
211 if (IS_ERR(adsp->cx_supply))
212 return PTR_ERR(adsp->cx_supply);
214 regulator_set_load(adsp->cx_supply, 100000);
216 adsp->px_supply = devm_regulator_get(adsp->dev, "px");
217 return PTR_ERR_OR_ZERO(adsp->px_supply);
220 static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
222 struct device_node *node;
226 node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
228 dev_err(adsp->dev, "no memory-region specified\n");
232 ret = of_address_to_resource(node, 0, &r);
236 adsp->mem_phys = adsp->mem_reloc = r.start;
237 adsp->mem_size = resource_size(&r);
238 adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size);
239 if (!adsp->mem_region) {
240 dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
241 &r.start, adsp->mem_size);
248 static int adsp_probe(struct platform_device *pdev)
250 const struct adsp_data *desc;
251 struct qcom_adsp *adsp;
256 desc = of_device_get_match_data(&pdev->dev);
260 if (!qcom_scm_is_available())
261 return -EPROBE_DEFER;
263 fw_name = desc->firmware_name;
264 ret = of_property_read_string(pdev->dev.of_node, "firmware-name",
266 if (ret < 0 && ret != -EINVAL)
269 rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
270 fw_name, sizeof(*adsp));
272 dev_err(&pdev->dev, "unable to allocate remoteproc\n");
276 adsp = (struct qcom_adsp *)rproc->priv;
277 adsp->dev = &pdev->dev;
279 adsp->pas_id = desc->pas_id;
280 adsp->has_aggre2_clk = desc->has_aggre2_clk;
281 platform_set_drvdata(pdev, adsp);
283 ret = adsp_alloc_memory_region(adsp);
287 ret = adsp_init_clock(adsp);
291 ret = adsp_init_regulator(adsp);
295 ret = qcom_q6v5_init(&adsp->q6v5, pdev, rproc, desc->crash_reason_smem,
300 qcom_add_glink_subdev(rproc, &adsp->glink_subdev);
301 qcom_add_smd_subdev(rproc, &adsp->smd_subdev);
302 qcom_add_ssr_subdev(rproc, &adsp->ssr_subdev, desc->ssr_name);
303 adsp->sysmon = qcom_add_sysmon_subdev(rproc,
306 if (IS_ERR(adsp->sysmon)) {
307 ret = PTR_ERR(adsp->sysmon);
311 ret = rproc_add(rproc);
323 static int adsp_remove(struct platform_device *pdev)
325 struct qcom_adsp *adsp = platform_get_drvdata(pdev);
327 rproc_del(adsp->rproc);
329 qcom_remove_glink_subdev(adsp->rproc, &adsp->glink_subdev);
330 qcom_remove_sysmon_subdev(adsp->sysmon);
331 qcom_remove_smd_subdev(adsp->rproc, &adsp->smd_subdev);
332 qcom_remove_ssr_subdev(adsp->rproc, &adsp->ssr_subdev);
333 rproc_free(adsp->rproc);
338 static const struct adsp_data adsp_resource_init = {
339 .crash_reason_smem = 423,
340 .firmware_name = "adsp.mdt",
342 .has_aggre2_clk = false,
344 .sysmon_name = "adsp",
348 static const struct adsp_data cdsp_resource_init = {
349 .crash_reason_smem = 601,
350 .firmware_name = "cdsp.mdt",
352 .has_aggre2_clk = false,
354 .sysmon_name = "cdsp",
358 static const struct adsp_data slpi_resource_init = {
359 .crash_reason_smem = 424,
360 .firmware_name = "slpi.mdt",
362 .has_aggre2_clk = true,
364 .sysmon_name = "slpi",
368 static const struct adsp_data wcss_resource_init = {
369 .crash_reason_smem = 421,
370 .firmware_name = "wcnss.mdt",
373 .sysmon_name = "wcnss",
377 static const struct of_device_id adsp_of_match[] = {
378 { .compatible = "qcom,msm8974-adsp-pil", .data = &adsp_resource_init},
379 { .compatible = "qcom,msm8996-adsp-pil", .data = &adsp_resource_init},
380 { .compatible = "qcom,msm8996-slpi-pil", .data = &slpi_resource_init},
381 { .compatible = "qcom,qcs404-adsp-pas", .data = &adsp_resource_init },
382 { .compatible = "qcom,qcs404-cdsp-pas", .data = &cdsp_resource_init },
383 { .compatible = "qcom,qcs404-wcss-pas", .data = &wcss_resource_init },
384 { .compatible = "qcom,sdm845-adsp-pas", .data = &adsp_resource_init},
385 { .compatible = "qcom,sdm845-cdsp-pas", .data = &cdsp_resource_init},
388 MODULE_DEVICE_TABLE(of, adsp_of_match);
390 static struct platform_driver adsp_driver = {
392 .remove = adsp_remove,
394 .name = "qcom_q6v5_pas",
395 .of_match_table = adsp_of_match,
399 module_platform_driver(adsp_driver);
400 MODULE_DESCRIPTION("Qualcomm Hexagon v5 Peripheral Authentication Service driver");
401 MODULE_LICENSE("GPL v2");