1 // SPDX-License-Identifier: GPL-2.0
13 #include <linux/soc/renesas/rcar-rst.h>
22 				 struct rproc_mem_entry *mem)  in rcar_rproc_mem_alloc()  argument
24 	struct device *dev = &rproc->dev;  in rcar_rproc_mem_alloc()
27 	dev_dbg(dev, "map memory: %pa+%zx\n", &mem->dma, mem->len);  in rcar_rproc_mem_alloc()
28 	va = ioremap_wc(mem->dma, mem->len);  in rcar_rproc_mem_alloc()
31 			&mem->dma, mem->len);  in rcar_rproc_mem_alloc()
32 		return -ENOMEM;  in rcar_rproc_mem_alloc()
36 	mem->va = va;  in rcar_rproc_mem_alloc()
42 				   struct rproc_mem_entry *mem)  in rcar_rproc_mem_release()  argument
44 	dev_dbg(&rproc->dev, "unmap memory: %pa\n", &mem->dma);  in rcar_rproc_mem_release()
45 	iounmap(mem->va);  in rcar_rproc_mem_release()
52 	struct device *dev = rproc->dev.parent;  in rcar_rproc_prepare()
53 	struct device_node *np = dev->of_node;  in rcar_rproc_prepare()
55 	struct rproc_mem_entry *mem;  in rcar_rproc_prepare()  local
60 	of_phandle_iterator_init(&it, np, "memory-region", NULL, 0);  in rcar_rproc_prepare()
65 			dev_err(&rproc->dev,  in rcar_rproc_prepare()
66 				"unable to acquire memory-region\n");  in rcar_rproc_prepare()
67 			return -EINVAL;  in rcar_rproc_prepare()
70 		if (rmem->base > U32_MAX)  in rcar_rproc_prepare()
71 			return -EINVAL;  in rcar_rproc_prepare()
73 		/* No need to translate pa to da, R-Car use same map */  in rcar_rproc_prepare()
74 		da = rmem->base;  in rcar_rproc_prepare()
75 		mem = rproc_mem_entry_init(dev, NULL,  in rcar_rproc_prepare()
76 					   rmem->base,  in rcar_rproc_prepare()
77 					   rmem->size, da,  in rcar_rproc_prepare()
80 					   it.node->name);  in rcar_rproc_prepare()
82 		if (!mem)  in rcar_rproc_prepare()
83 			return -ENOMEM;  in rcar_rproc_prepare()
85 		rproc_add_carveout(rproc, mem);  in rcar_rproc_prepare()
97 		dev_info(&rproc->dev, "No resource table in elf\n");  in rcar_rproc_parse_fw()
104 	struct rcar_rproc *priv = rproc->priv;  in rcar_rproc_start()
107 	if (!rproc->bootaddr)  in rcar_rproc_start()
108 		return -EINVAL;  in rcar_rproc_start()
110 	err = rcar_rst_set_rproc_boot_addr(rproc->bootaddr);  in rcar_rproc_start()
112 		dev_err(&rproc->dev, "failed to set rproc boot addr\n");  in rcar_rproc_start()
116 	err = reset_control_deassert(priv->rst);  in rcar_rproc_start()
118 		dev_err(&rproc->dev, "failed to deassert reset\n");  in rcar_rproc_start()
125 	struct rcar_rproc *priv = rproc->priv;  in rcar_rproc_stop()
128 	err = reset_control_assert(priv->rst);  in rcar_rproc_stop()
130 		dev_err(&rproc->dev, "failed to assert reset\n");  in rcar_rproc_stop()
149 	struct device *dev = &pdev->dev;  in rcar_rproc_probe()
150 	struct device_node *np = dev->of_node;  in rcar_rproc_probe()
155 	rproc = devm_rproc_alloc(dev, np->name, &rcar_rproc_ops,  in rcar_rproc_probe()
158 		return -ENOMEM;  in rcar_rproc_probe()
160 	priv = rproc->priv;  in rcar_rproc_probe()
162 	priv->rst = devm_reset_control_get_exclusive(dev, NULL);  in rcar_rproc_probe()
163 	if (IS_ERR(priv->rst)) {  in rcar_rproc_probe()
164 		ret = PTR_ERR(priv->rst);  in rcar_rproc_probe()
179 	rproc->auto_boot = false;  in rcar_rproc_probe()
197 	struct device *dev = &pdev->dev;  in rcar_rproc_remove()
205 	{ .compatible = "renesas,rcar-cr7" },
215 		.name = "rcar-rproc",
223 MODULE_DESCRIPTION("Renesas R-Car Gen3 remote processor control driver");