1 // SPDX-License-Identifier: GPL-2.0
14 #include <linux/soc/renesas/rcar-rst.h>
23 				 struct rproc_mem_entry *mem)  in rcar_rproc_mem_alloc()  argument
25 	struct device *dev = &rproc->dev;  in rcar_rproc_mem_alloc()
28 	dev_dbg(dev, "map memory: %pa+%zx\n", &mem->dma, mem->len);  in rcar_rproc_mem_alloc()
29 	va = ioremap_wc(mem->dma, mem->len);  in rcar_rproc_mem_alloc()
32 			&mem->dma, mem->len);  in rcar_rproc_mem_alloc()
33 		return -ENOMEM;  in rcar_rproc_mem_alloc()
37 	mem->va = va;  in rcar_rproc_mem_alloc()
43 				   struct rproc_mem_entry *mem)  in rcar_rproc_mem_release()  argument
45 	dev_dbg(&rproc->dev, "unmap memory: %pa\n", &mem->dma);  in rcar_rproc_mem_release()
46 	iounmap(mem->va);  in rcar_rproc_mem_release()
53 	struct device *dev = rproc->dev.parent;  in rcar_rproc_prepare()
54 	struct device_node *np = dev->of_node;  in rcar_rproc_prepare()
56 	struct rproc_mem_entry *mem;  in rcar_rproc_prepare()  local
61 	of_phandle_iterator_init(&it, np, "memory-region", NULL, 0);  in rcar_rproc_prepare()
67 			dev_err(&rproc->dev,  in rcar_rproc_prepare()
68 				"unable to acquire memory-region\n");  in rcar_rproc_prepare()
69 			return -EINVAL;  in rcar_rproc_prepare()
72 		if (rmem->base > U32_MAX) {  in rcar_rproc_prepare()
74 			return -EINVAL;  in rcar_rproc_prepare()
77 		/* No need to translate pa to da, R-Car use same map */  in rcar_rproc_prepare()
78 		da = rmem->base;  in rcar_rproc_prepare()
79 		mem = rproc_mem_entry_init(dev, NULL,  in rcar_rproc_prepare()
80 					   rmem->base,  in rcar_rproc_prepare()
81 					   rmem->size, da,  in rcar_rproc_prepare()
84 					   it.node->name);  in rcar_rproc_prepare()
86 		if (!mem) {  in rcar_rproc_prepare()
88 			return -ENOMEM;  in rcar_rproc_prepare()
91 		rproc_add_carveout(rproc, mem);  in rcar_rproc_prepare()
103 		dev_info(&rproc->dev, "No resource table in elf\n");  in rcar_rproc_parse_fw()
110 	struct rcar_rproc *priv = rproc->priv;  in rcar_rproc_start()
113 	if (!rproc->bootaddr)  in rcar_rproc_start()
114 		return -EINVAL;  in rcar_rproc_start()
116 	err = rcar_rst_set_rproc_boot_addr(rproc->bootaddr);  in rcar_rproc_start()
118 		dev_err(&rproc->dev, "failed to set rproc boot addr\n");  in rcar_rproc_start()
122 	err = reset_control_deassert(priv->rst);  in rcar_rproc_start()
124 		dev_err(&rproc->dev, "failed to deassert reset\n");  in rcar_rproc_start()
131 	struct rcar_rproc *priv = rproc->priv;  in rcar_rproc_stop()
134 	err = reset_control_assert(priv->rst);  in rcar_rproc_stop()
136 		dev_err(&rproc->dev, "failed to assert reset\n");  in rcar_rproc_stop()
155 	struct device *dev = &pdev->dev;  in rcar_rproc_probe()
156 	struct device_node *np = dev->of_node;  in rcar_rproc_probe()
161 	rproc = devm_rproc_alloc(dev, np->name, &rcar_rproc_ops,  in rcar_rproc_probe()
164 		return -ENOMEM;  in rcar_rproc_probe()
166 	priv = rproc->priv;  in rcar_rproc_probe()
168 	priv->rst = devm_reset_control_get_exclusive(dev, NULL);  in rcar_rproc_probe()
169 	if (IS_ERR(priv->rst)) {  in rcar_rproc_probe()
170 		ret = PTR_ERR(priv->rst);  in rcar_rproc_probe()
185 	rproc->auto_boot = false;  in rcar_rproc_probe()
203 	struct device *dev = &pdev->dev;  in rcar_rproc_remove()
209 	{ .compatible = "renesas,rcar-cr7" },
219 		.name = "rcar-rproc",
227 MODULE_DESCRIPTION("Renesas R-Car Gen3 remote processor control driver");