70 static void keystone_rproc_dsp_reset(struct keystone_rproc *ksproc)  in keystone_rproc_dsp_reset()  argument
72 	reset_control_assert(ksproc->reset);  in keystone_rproc_dsp_reset()
76 static int keystone_rproc_dsp_boot(struct keystone_rproc *ksproc, u32 boot_addr)  in keystone_rproc_dsp_boot()  argument
81 		dev_err(ksproc->dev, "invalid boot address 0x%x, must be aligned on a 1KB boundary\n",  in keystone_rproc_dsp_boot()
86 	ret = regmap_write(ksproc->dev_ctrl, ksproc->boot_offset, boot_addr);  in keystone_rproc_dsp_boot()
88 		dev_err(ksproc->dev, "regmap_write of boot address failed, status = %d\n",  in keystone_rproc_dsp_boot()
93 	reset_control_deassert(ksproc->reset);  in keystone_rproc_dsp_boot()
111 	struct keystone_rproc *ksproc = dev_id;  in keystone_rproc_exception_interrupt()  local
113 	rproc_report_crash(ksproc->rproc, RPROC_FATAL_ERROR);  in keystone_rproc_exception_interrupt()
143 	struct keystone_rproc *ksproc =  in handle_event()  local
146 	rproc_vq_interrupt(ksproc->rproc, 0);  in handle_event()
147 	rproc_vq_interrupt(ksproc->rproc, 1);  in handle_event()
155 	struct keystone_rproc *ksproc = dev_id;  in keystone_rproc_vring_interrupt()  local
157 	schedule_work(&ksproc->workqueue);  in keystone_rproc_vring_interrupt()
171 	struct keystone_rproc *ksproc = rproc->priv;  in keystone_rproc_start()  local
174 	INIT_WORK(&ksproc->workqueue, handle_event);  in keystone_rproc_start()
176 	ret = request_irq(ksproc->irq_ring, keystone_rproc_vring_interrupt, 0,  in keystone_rproc_start()
177 			  dev_name(ksproc->dev), ksproc);  in keystone_rproc_start()
179 		dev_err(ksproc->dev, "failed to enable vring interrupt, ret = %d\n",  in keystone_rproc_start()
184 	ret = request_irq(ksproc->irq_fault, keystone_rproc_exception_interrupt,  in keystone_rproc_start()
185 			  0, dev_name(ksproc->dev), ksproc);  in keystone_rproc_start()
187 		dev_err(ksproc->dev, "failed to enable exception interrupt, ret = %d\n",  in keystone_rproc_start()
192 	ret = keystone_rproc_dsp_boot(ksproc, rproc->bootaddr);  in keystone_rproc_start()
199 	free_irq(ksproc->irq_fault, ksproc);  in keystone_rproc_start()
201 	free_irq(ksproc->irq_ring, ksproc);  in keystone_rproc_start()
202 	flush_work(&ksproc->workqueue);  in keystone_rproc_start()
215 	struct keystone_rproc *ksproc = rproc->priv;  in keystone_rproc_stop()  local
217 	keystone_rproc_dsp_reset(ksproc);  in keystone_rproc_stop()
218 	free_irq(ksproc->irq_fault, ksproc);  in keystone_rproc_stop()
219 	free_irq(ksproc->irq_ring, ksproc);  in keystone_rproc_stop()
220 	flush_work(&ksproc->workqueue);  in keystone_rproc_stop()
233 	struct keystone_rproc *ksproc = rproc->priv;  in keystone_rproc_kick()  local
235 	if (WARN_ON(ksproc->kick_gpio < 0))  in keystone_rproc_kick()
238 	gpio_set_value(ksproc->kick_gpio, 1);  in keystone_rproc_kick()
251 	struct keystone_rproc *ksproc = rproc->priv;  in keystone_rproc_da_to_va()  local
261 	for (i = 0; i < ksproc->num_mems; i++) {  in keystone_rproc_da_to_va()
262 		bus_addr = ksproc->mem[i].bus_addr;  in keystone_rproc_da_to_va()
263 		dev_addr = ksproc->mem[i].dev_addr;  in keystone_rproc_da_to_va()
264 		size = ksproc->mem[i].size;  in keystone_rproc_da_to_va()
271 				va = ksproc->mem[i].cpu_addr + offset;  in keystone_rproc_da_to_va()
279 				va = ksproc->mem[i].cpu_addr + offset;  in keystone_rproc_da_to_va()
296 					  struct keystone_rproc *ksproc)  in keystone_rproc_of_get_memories()  argument
305 	ksproc->mem = devm_kcalloc(ksproc->dev, num_mems,  in keystone_rproc_of_get_memories()
306 				   sizeof(*ksproc->mem), GFP_KERNEL);  in keystone_rproc_of_get_memories()
307 	if (!ksproc->mem)  in keystone_rproc_of_get_memories()
313 		ksproc->mem[i].cpu_addr = devm_ioremap_resource(dev, res);  in keystone_rproc_of_get_memories()
314 		if (IS_ERR(ksproc->mem[i].cpu_addr)) {  in keystone_rproc_of_get_memories()
317 			return PTR_ERR(ksproc->mem[i].cpu_addr);  in keystone_rproc_of_get_memories()
319 		ksproc->mem[i].bus_addr = res->start;  in keystone_rproc_of_get_memories()
320 		ksproc->mem[i].dev_addr =  in keystone_rproc_of_get_memories()
322 		ksproc->mem[i].size = resource_size(res);  in keystone_rproc_of_get_memories()
325 		memset((__force void *)ksproc->mem[i].cpu_addr, 0,  in keystone_rproc_of_get_memories()
326 		       ksproc->mem[i].size);  in keystone_rproc_of_get_memories()
328 	ksproc->num_mems = num_mems;  in keystone_rproc_of_get_memories()
334 					    struct keystone_rproc *ksproc)  in keystone_rproc_of_get_dev_syscon()  argument
345 	ksproc->dev_ctrl =  in keystone_rproc_of_get_dev_syscon()
347 	if (IS_ERR(ksproc->dev_ctrl)) {  in keystone_rproc_of_get_dev_syscon()
348 		ret = PTR_ERR(ksproc->dev_ctrl);  in keystone_rproc_of_get_dev_syscon()
353 				       &ksproc->boot_offset)) {  in keystone_rproc_of_get_dev_syscon()
365 	struct keystone_rproc *ksproc;  in keystone_rproc_probe()  local
392 			    sizeof(*ksproc));  in keystone_rproc_probe()
397 	ksproc = rproc->priv;  in keystone_rproc_probe()
398 	ksproc->rproc = rproc;  in keystone_rproc_probe()
399 	ksproc->dev = dev;  in keystone_rproc_probe()
401 	ret = keystone_rproc_of_get_dev_syscon(pdev, ksproc);  in keystone_rproc_probe()
405 	ksproc->reset = devm_reset_control_get_exclusive(dev, NULL);  in keystone_rproc_probe()
406 	if (IS_ERR(ksproc->reset)) {  in keystone_rproc_probe()
407 		ret = PTR_ERR(ksproc->reset);  in keystone_rproc_probe()
420 	ret = keystone_rproc_of_get_memories(pdev, ksproc);  in keystone_rproc_probe()
424 	ksproc->irq_ring = platform_get_irq_byname(pdev, "vring");  in keystone_rproc_probe()
425 	if (ksproc->irq_ring < 0) {  in keystone_rproc_probe()
426 		ret = ksproc->irq_ring;  in keystone_rproc_probe()
430 	ksproc->irq_fault = platform_get_irq_byname(pdev, "exception");  in keystone_rproc_probe()
431 	if (ksproc->irq_fault < 0) {  in keystone_rproc_probe()
432 		ret = ksproc->irq_fault;  in keystone_rproc_probe()
436 	ksproc->kick_gpio = of_get_named_gpio_flags(np, "kick-gpios", 0, NULL);  in keystone_rproc_probe()
437 	if (ksproc->kick_gpio < 0) {  in keystone_rproc_probe()
438 		ret = ksproc->kick_gpio;  in keystone_rproc_probe()
448 	ret = reset_control_status(ksproc->reset);  in keystone_rproc_probe()
454 		keystone_rproc_dsp_reset(ksproc);  in keystone_rproc_probe()
464 	platform_set_drvdata(pdev, ksproc);  in keystone_rproc_probe()
481 	struct keystone_rproc *ksproc = platform_get_drvdata(pdev);  in keystone_rproc_remove()  local
483 	rproc_del(ksproc->rproc);  in keystone_rproc_remove()
486 	rproc_free(ksproc->rproc);  in keystone_rproc_remove()