Lines Matching +full:scmi +full:- +full:smc
1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) STMicroelectronics 2018 - All Rights Reserved
8 #include <linux/arm-smccc.h>
9 #include <linux/dma-mapping.h>
99 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_pa_to_da()
102 for (i = 0; i < ddata->nb_rmems; i++) { in stm32_rproc_pa_to_da()
103 p_mem = &ddata->rmems[i]; in stm32_rproc_pa_to_da()
105 if (pa < p_mem->bus_addr || in stm32_rproc_pa_to_da()
106 pa >= p_mem->bus_addr + p_mem->size) in stm32_rproc_pa_to_da()
108 *da = pa - p_mem->bus_addr + p_mem->dev_addr; in stm32_rproc_pa_to_da()
109 dev_dbg(rproc->dev.parent, "pa %pa to da %llx\n", &pa, *da); in stm32_rproc_pa_to_da()
113 return -EINVAL; in stm32_rproc_pa_to_da()
119 struct device *dev = rproc->dev.parent; in stm32_rproc_mem_alloc()
122 dev_dbg(dev, "map memory: %pad+%zx\n", &mem->dma, mem->len); in stm32_rproc_mem_alloc()
123 va = (__force void *)ioremap_wc(mem->dma, mem->len); in stm32_rproc_mem_alloc()
126 &mem->dma, mem->len); in stm32_rproc_mem_alloc()
127 return -ENOMEM; in stm32_rproc_mem_alloc()
131 mem->va = va; in stm32_rproc_mem_alloc()
139 dev_dbg(rproc->dev.parent, "unmap memory: %pa\n", &mem->dma); in stm32_rproc_mem_release()
140 iounmap((__force __iomem void *)mem->va); in stm32_rproc_mem_release()
148 struct device *parent, *dev = &pdev->dev; in stm32_rproc_of_memory_translations()
154 parent = dev->parent; in stm32_rproc_of_memory_translations()
155 np = parent->of_node; in stm32_rproc_of_memory_translations()
157 cnt = of_property_count_elems_of_size(np, "dma-ranges", in stm32_rproc_of_memory_translations()
160 dev_err(dev, "%s: dma-ranges property not defined\n", __func__); in stm32_rproc_of_memory_translations()
161 return -EINVAL; in stm32_rproc_of_memory_translations()
166 return -ENOMEM; in stm32_rproc_of_memory_translations()
169 return -ENOMEM; in stm32_rproc_of_memory_translations()
173 ret = of_property_read_u32_array(np, "dma-ranges", in stm32_rproc_of_memory_translations()
176 dev_err(dev, "error while get dma-ranges property: %x\n", ret); in stm32_rproc_of_memory_translations()
190 ddata->rmems = p_mems; in stm32_rproc_of_memory_translations()
191 ddata->nb_rmems = cnt; in stm32_rproc_of_memory_translations()
200 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_mbox_idx()
203 for (i = 0; i < ARRAY_SIZE(ddata->mb); i++) { in stm32_rproc_mbox_idx()
204 if (!strncmp(ddata->mb[i].name, name, strlen(name))) in stm32_rproc_mbox_idx()
207 dev_err(&rproc->dev, "mailbox %s not found\n", name); in stm32_rproc_mbox_idx()
209 return -EINVAL; in stm32_rproc_mbox_idx()
214 struct device *dev = rproc->dev.parent; in stm32_rproc_prepare()
215 struct device_node *np = dev->of_node; in stm32_rproc_prepare()
231 return -EINVAL; in stm32_rproc_prepare()
242 "%.*s", strchrnul(res.name, '@') - res.name, in stm32_rproc_prepare()
256 return -ENOMEM; in stm32_rproc_prepare()
267 dev_warn(&rproc->dev, "no resource table found for this firmware\n"); in stm32_rproc_parse_fw()
285 struct rproc *rproc = dev_get_drvdata(mb->client.dev); in stm32_rproc_mb_vq_work()
287 mutex_lock(&rproc->lock); in stm32_rproc_mb_vq_work()
289 if (rproc->state != RPROC_RUNNING && rproc->state != RPROC_ATTACHED) in stm32_rproc_mb_vq_work()
292 if (rproc_vq_interrupt(rproc, mb->vq_id) == IRQ_NONE) in stm32_rproc_mb_vq_work()
293 dev_dbg(&rproc->dev, "no message found in vq%d\n", mb->vq_id); in stm32_rproc_mb_vq_work()
296 mutex_unlock(&rproc->lock); in stm32_rproc_mb_vq_work()
301 struct rproc *rproc = dev_get_drvdata(cl->dev); in stm32_rproc_mb_callback()
303 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_mb_callback()
305 queue_work(ddata->workqueue, &mb->vq_work); in stm32_rproc_mb_callback()
310 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_free_mbox()
313 for (i = 0; i < ARRAY_SIZE(ddata->mb); i++) { in stm32_rproc_free_mbox()
314 if (ddata->mb[i].chan) in stm32_rproc_free_mbox()
315 mbox_free_channel(ddata->mb[i].chan); in stm32_rproc_free_mbox()
316 ddata->mb[i].chan = NULL; in stm32_rproc_free_mbox()
339 .vq_id = -1,
348 .vq_id = -1,
359 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_request_mbox()
360 struct device *dev = &rproc->dev; in stm32_rproc_request_mbox()
367 memcpy(ddata->mb, stm32_rproc_mbox, sizeof(stm32_rproc_mbox)); in stm32_rproc_request_mbox()
370 name = ddata->mb[i].name; in stm32_rproc_request_mbox()
372 cl = &ddata->mb[i].client; in stm32_rproc_request_mbox()
373 cl->dev = dev->parent; in stm32_rproc_request_mbox()
375 ddata->mb[i].chan = mbox_request_channel_byname(cl, name); in stm32_rproc_request_mbox()
376 if (IS_ERR(ddata->mb[i].chan)) { in stm32_rproc_request_mbox()
377 if (PTR_ERR(ddata->mb[i].chan) == -EPROBE_DEFER) { in stm32_rproc_request_mbox()
378 dev_err_probe(dev->parent, in stm32_rproc_request_mbox()
379 PTR_ERR(ddata->mb[i].chan), in stm32_rproc_request_mbox()
385 ddata->mb[i].chan = NULL; in stm32_rproc_request_mbox()
387 if (ddata->mb[i].vq_id >= 0) { in stm32_rproc_request_mbox()
388 INIT_WORK(&ddata->mb[i].vq_work, in stm32_rproc_request_mbox()
396 for (j = i - 1; j >= 0; j--) in stm32_rproc_request_mbox()
397 if (ddata->mb[j].chan) in stm32_rproc_request_mbox()
398 mbox_free_channel(ddata->mb[j].chan); in stm32_rproc_request_mbox()
399 return -EPROBE_DEFER; in stm32_rproc_request_mbox()
404 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_set_hold_boot()
405 struct stm32_syscon hold_boot = ddata->hold_boot; in stm32_rproc_set_hold_boot()
411 * - using SCMI: the hold boot is managed as a reset, in stm32_rproc_set_hold_boot()
412 * - using Linux(no SCMI): the hold boot is managed as a syscon register in stm32_rproc_set_hold_boot()
413 * - using SMC call (deprecated): use SMC reset interface in stm32_rproc_set_hold_boot()
418 if (ddata->hold_boot_rst) { in stm32_rproc_set_hold_boot()
419 /* Use the SCMI reset controller */ in stm32_rproc_set_hold_boot()
421 err = reset_control_deassert(ddata->hold_boot_rst); in stm32_rproc_set_hold_boot()
423 err = reset_control_assert(ddata->hold_boot_rst); in stm32_rproc_set_hold_boot()
424 } else if (IS_ENABLED(CONFIG_HAVE_ARM_SMCCC) && ddata->hold_boot_smc) { in stm32_rproc_set_hold_boot()
425 /* Use the SMC call */ in stm32_rproc_set_hold_boot()
436 dev_err(&rproc->dev, "failed to set hold boot\n"); in stm32_rproc_set_hold_boot()
447 list_for_each_entry(trace, &rproc->traces, node) { in stm32_rproc_add_coredump_trace()
450 list_for_each_entry(segment, &rproc->dump_segments, node) { in stm32_rproc_add_coredump_trace()
451 if (segment->da == trace->trace_mem.da) { in stm32_rproc_add_coredump_trace()
458 rproc_coredump_add_segment(rproc, trace->trace_mem.da, in stm32_rproc_add_coredump_trace()
459 trace->trace_mem.len); in stm32_rproc_add_coredump_trace()
465 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_start()
471 if (ddata->pdds.map) { in stm32_rproc_start()
472 err = regmap_update_bits(ddata->pdds.map, ddata->pdds.reg, in stm32_rproc_start()
473 ddata->pdds.mask, 0); in stm32_rproc_start()
475 dev_err(&rproc->dev, "failed to clear pdds\n"); in stm32_rproc_start()
496 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_detach()
501 if (idx >= 0 && ddata->mb[idx].chan) { in stm32_rproc_detach()
502 err = mbox_send_message(ddata->mb[idx].chan, "stop"); in stm32_rproc_detach()
504 dev_warn(&rproc->dev, "warning: remote FW detach without ack\n"); in stm32_rproc_detach()
507 /* Allow remote processor to auto-reboot */ in stm32_rproc_detach()
513 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_stop()
517 if (rproc->state != RPROC_OFFLINE && rproc->state != RPROC_CRASHED) { in stm32_rproc_stop()
519 if (idx >= 0 && ddata->mb[idx].chan) { in stm32_rproc_stop()
520 err = mbox_send_message(ddata->mb[idx].chan, "detach"); in stm32_rproc_stop()
522 dev_warn(&rproc->dev, "warning: remote FW shutdown without ack\n"); in stm32_rproc_stop()
530 err = reset_control_assert(ddata->rst); in stm32_rproc_stop()
532 dev_err(&rproc->dev, "failed to assert the reset\n"); in stm32_rproc_stop()
537 if (ddata->pdds.map) { in stm32_rproc_stop()
538 err = regmap_update_bits(ddata->pdds.map, ddata->pdds.reg, in stm32_rproc_stop()
539 ddata->pdds.mask, 1); in stm32_rproc_stop()
541 dev_err(&rproc->dev, "failed to set pdds\n"); in stm32_rproc_stop()
547 if (ddata->m4_state.map) { in stm32_rproc_stop()
548 err = regmap_update_bits(ddata->m4_state.map, in stm32_rproc_stop()
549 ddata->m4_state.reg, in stm32_rproc_stop()
550 ddata->m4_state.mask, in stm32_rproc_stop()
553 dev_err(&rproc->dev, "failed to set copro state\n"); in stm32_rproc_stop()
563 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_kick()
571 if (vqid != ddata->mb[i].vq_id) in stm32_rproc_kick()
573 if (!ddata->mb[i].chan) in stm32_rproc_kick()
575 err = mbox_send_message(ddata->mb[i].chan, "kick"); in stm32_rproc_kick()
577 dev_err(&rproc->dev, "%s: failed (%s, err:%d)\n", in stm32_rproc_kick()
578 __func__, ddata->mb[i].name, err); in stm32_rproc_kick()
586 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_da_to_pa()
587 struct device *dev = rproc->dev.parent; in stm32_rproc_da_to_pa()
591 for (i = 0; i < ddata->nb_rmems; i++) { in stm32_rproc_da_to_pa()
592 p_mem = &ddata->rmems[i]; in stm32_rproc_da_to_pa()
594 if (da < p_mem->dev_addr || in stm32_rproc_da_to_pa()
595 da >= p_mem->dev_addr + p_mem->size) in stm32_rproc_da_to_pa()
598 *pa = da - p_mem->dev_addr + p_mem->bus_addr; in stm32_rproc_da_to_pa()
606 return -EINVAL; in stm32_rproc_da_to_pa()
612 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_get_loaded_rsc_table()
613 struct device *dev = rproc->dev.parent; in stm32_rproc_get_loaded_rsc_table()
619 if (ddata->rsc_va) in stm32_rproc_get_loaded_rsc_table()
622 err = regmap_read(ddata->rsctbl.map, ddata->rsctbl.reg, &rsc_da); in stm32_rproc_get_loaded_rsc_table()
625 return ERR_PTR(-EINVAL); in stm32_rproc_get_loaded_rsc_table()
630 return ERR_PTR(-ENOENT); in stm32_rproc_get_loaded_rsc_table()
636 ddata->rsc_va = devm_ioremap_wc(dev, rsc_pa, RSC_TBL_SIZE); in stm32_rproc_get_loaded_rsc_table()
637 if (IS_ERR_OR_NULL(ddata->rsc_va)) { in stm32_rproc_get_loaded_rsc_table()
640 ddata->rsc_va = NULL; in stm32_rproc_get_loaded_rsc_table()
641 return ERR_PTR(-ENOMEM); in stm32_rproc_get_loaded_rsc_table()
648 * firmware for the resource table. On detach, the remoteproc core re-initializes this in stm32_rproc_get_loaded_rsc_table()
649 * entire area by overwriting it with the initial values stored in rproc->clean_table. in stm32_rproc_get_loaded_rsc_table()
652 return (__force struct resource_table *)ddata->rsc_va; in stm32_rproc_get_loaded_rsc_table()
671 { .compatible = "st,stm32mp1-m4" },
681 syscon->map = syscon_regmap_lookup_by_phandle(np, prop); in stm32_rproc_get_syscon()
682 if (IS_ERR(syscon->map)) { in stm32_rproc_get_syscon()
683 err = PTR_ERR(syscon->map); in stm32_rproc_get_syscon()
684 syscon->map = NULL; in stm32_rproc_get_syscon()
688 err = of_property_read_u32_index(np, prop, 1, &syscon->reg); in stm32_rproc_get_syscon()
692 err = of_property_read_u32_index(np, prop, 2, &syscon->mask); in stm32_rproc_get_syscon()
701 struct device *dev = &pdev->dev; in stm32_rproc_parse_dt()
702 struct device_node *np = dev->of_node; in stm32_rproc_parse_dt()
708 if (irq == -EPROBE_DEFER) in stm32_rproc_parse_dt()
718 ddata->wdg_irq = irq; in stm32_rproc_parse_dt()
720 if (of_property_read_bool(np, "wakeup-source")) { in stm32_rproc_parse_dt()
728 ddata->rst = devm_reset_control_get_optional(dev, "mcu_rst"); in stm32_rproc_parse_dt()
729 if (!ddata->rst) { in stm32_rproc_parse_dt()
731 ddata->rst = devm_reset_control_get_by_index(dev, 0); in stm32_rproc_parse_dt()
733 if (IS_ERR(ddata->rst)) in stm32_rproc_parse_dt()
734 return dev_err_probe(dev, PTR_ERR(ddata->rst), in stm32_rproc_parse_dt()
739 * - using SCMI: the hold boot is managed as a reset in stm32_rproc_parse_dt()
740 * The DT "reset-mames" property should be defined with 2 items: in stm32_rproc_parse_dt()
741 * reset-names = "mcu_rst", "hold_boot"; in stm32_rproc_parse_dt()
742 * - using SMC call (deprecated): use SMC reset interface in stm32_rproc_parse_dt()
743 * The DT "reset-mames" property is optional, "st,syscfg-tz" is required in stm32_rproc_parse_dt()
744 * - default(no SCMI, no SMC): the hold boot is managed as a syscon register in stm32_rproc_parse_dt()
745 * The DT "reset-mames" property is optional, "st,syscfg-holdboot" is required in stm32_rproc_parse_dt()
748 ddata->hold_boot_rst = devm_reset_control_get_optional(dev, "hold_boot"); in stm32_rproc_parse_dt()
749 if (IS_ERR(ddata->hold_boot_rst)) in stm32_rproc_parse_dt()
750 return dev_err_probe(dev, PTR_ERR(ddata->hold_boot_rst), in stm32_rproc_parse_dt()
753 if (!ddata->hold_boot_rst && IS_ENABLED(CONFIG_HAVE_ARM_SMCCC)) { in stm32_rproc_parse_dt()
754 /* Manage the MCU_BOOT using SMC call */ in stm32_rproc_parse_dt()
755 err = stm32_rproc_get_syscon(np, "st,syscfg-tz", &tz); in stm32_rproc_parse_dt()
762 ddata->hold_boot_smc = tzen & tz.mask; in stm32_rproc_parse_dt()
766 if (!ddata->hold_boot_rst && !ddata->hold_boot_smc) { in stm32_rproc_parse_dt()
768 err = stm32_rproc_get_syscon(np, "st,syscfg-holdboot", in stm32_rproc_parse_dt()
769 &ddata->hold_boot); in stm32_rproc_parse_dt()
776 err = stm32_rproc_get_syscon(np, "st,syscfg-pdds", &ddata->pdds); in stm32_rproc_parse_dt()
780 *auto_boot = of_property_read_bool(np, "st,auto-boot"); in stm32_rproc_parse_dt()
786 err = stm32_rproc_get_syscon(np, "st,syscfg-m4-state", in stm32_rproc_parse_dt()
787 &ddata->m4_state); in stm32_rproc_parse_dt()
790 ddata->m4_state.map = NULL; in stm32_rproc_parse_dt()
799 err = stm32_rproc_get_syscon(np, "st,syscfg-rsc-tbl", in stm32_rproc_parse_dt()
800 &ddata->rsctbl); in stm32_rproc_parse_dt()
813 if (!ddata->m4_state.map) { in stm32_rproc_get_m4_status()
822 return regmap_read(ddata->m4_state.map, ddata->m4_state.reg, state); in stm32_rproc_get_m4_status()
827 struct device *dev = &pdev->dev; in stm32_rproc_probe()
829 struct device_node *np = dev->of_node; in stm32_rproc_probe()
841 if (ret < 0 && ret != -EINVAL) in stm32_rproc_probe()
844 rproc = devm_rproc_alloc(dev, np->name, &st_rproc_ops, fw_name, sizeof(*ddata)); in stm32_rproc_probe()
846 return -ENOMEM; in stm32_rproc_probe()
848 ddata = rproc->priv; in stm32_rproc_probe()
852 ret = stm32_rproc_parse_dt(pdev, ddata, &rproc->auto_boot); in stm32_rproc_probe()
865 rproc->state = RPROC_DETACHED; in stm32_rproc_probe()
867 rproc->has_iommu = false; in stm32_rproc_probe()
868 ddata->workqueue = create_workqueue(dev_name(dev)); in stm32_rproc_probe()
869 if (!ddata->workqueue) { in stm32_rproc_probe()
871 ret = -ENOMEM; in stm32_rproc_probe()
890 destroy_workqueue(ddata->workqueue); in stm32_rproc_probe()
904 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_remove()
905 struct device *dev = &pdev->dev; in stm32_rproc_remove()
907 if (atomic_read(&rproc->power) > 0) in stm32_rproc_remove()
912 destroy_workqueue(ddata->workqueue); in stm32_rproc_remove()
923 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_suspend()
926 return enable_irq_wake(ddata->wdg_irq); in stm32_rproc_suspend()
934 struct stm32_rproc *ddata = rproc->priv; in stm32_rproc_resume()
937 return disable_irq_wake(ddata->wdg_irq); in stm32_rproc_resume()
949 .name = "stm32-rproc",