1 // SPDX-License-Identifier: GPL-2.0+
33 		 "Auto-boot the remote processor [default=false]");
53  * struct vpu - Ingenic VPU remoteproc private structure
55  * @clks: pointers to the VPU and AUX clocks
61 struct vpu {  struct
69 static int ingenic_rproc_prepare(struct rproc *rproc)  in ingenic_rproc_prepare()  argument
71 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_prepare()  argument
75 	ret = clk_bulk_prepare_enable(ARRAY_SIZE(vpu->clks), vpu->clks);  in ingenic_rproc_prepare()
77 		dev_err(vpu->dev, "Unable to start clocks: %d\n", ret);  in ingenic_rproc_prepare()
82 static int ingenic_rproc_unprepare(struct rproc *rproc)  in ingenic_rproc_unprepare()  argument
84 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_unprepare()  local
86 	clk_bulk_disable_unprepare(ARRAY_SIZE(vpu->clks), vpu->clks);  in ingenic_rproc_unprepare()
91 static int ingenic_rproc_start(struct rproc *rproc)  in ingenic_rproc_start()  argument
93 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_start()  local
96 	enable_irq(vpu->irq);  in ingenic_rproc_start()
100 	writel(ctrl, vpu->aux_base + REG_AUX_CTRL);  in ingenic_rproc_start()
105 static int ingenic_rproc_stop(struct rproc *rproc)  in ingenic_rproc_stop()  argument
107 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_stop()  local
109 	disable_irq(vpu->irq);  in ingenic_rproc_stop()
112 	writel(AUX_CTRL_SW_RESET, vpu->aux_base + REG_AUX_CTRL);  in ingenic_rproc_stop()
117 static void ingenic_rproc_kick(struct rproc *rproc, int vqid)  in ingenic_rproc_kick()  argument
119 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_kick()  local
121 	writel(vqid, vpu->aux_base + REG_CORE_MSG);  in ingenic_rproc_kick()
124 static void *ingenic_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)  in ingenic_rproc_da_to_va()  argument
126 	struct vpu *vpu = rproc->priv;  in ingenic_rproc_da_to_va()  local
131 		const struct vpu_mem_info *info = &vpu->mem_info[i];  in ingenic_rproc_da_to_va()
132 		const struct vpu_mem_map *map = info->map;  in ingenic_rproc_da_to_va()
134 		if (da >= map->da && (da + len) < (map->da + info->len)) {  in ingenic_rproc_da_to_va()
135 			va = info->base + (da - map->da);  in ingenic_rproc_da_to_va()
154 	struct rproc *rproc = data;  in vpu_interrupt()  local
155 	struct vpu *vpu = rproc->priv;  in vpu_interrupt()  local
158 	vring = readl(vpu->aux_base + REG_AUX_MSG);  in vpu_interrupt()
161 	writel(0, vpu->aux_base + REG_AUX_MSG_ACK);  in vpu_interrupt()
163 	return rproc_vq_interrupt(rproc, vring);  in vpu_interrupt()
168 	struct device *dev = &pdev->dev;  in ingenic_rproc_probe()
170 	struct rproc *rproc;  in ingenic_rproc_probe()  local
171 	struct vpu *vpu;  in ingenic_rproc_probe()  local
175 	rproc = devm_rproc_alloc(dev, "ingenic-vpu",  in ingenic_rproc_probe()
176 				 &ingenic_rproc_ops, NULL, sizeof(*vpu));  in ingenic_rproc_probe()
177 	if (!rproc)  in ingenic_rproc_probe()
178 		return -ENOMEM;  in ingenic_rproc_probe()
180 	rproc->auto_boot = auto_boot;  in ingenic_rproc_probe()
182 	vpu = rproc->priv;  in ingenic_rproc_probe()
183 	vpu->dev = &pdev->dev;  in ingenic_rproc_probe()
184 	platform_set_drvdata(pdev, vpu);  in ingenic_rproc_probe()
187 	vpu->aux_base = devm_ioremap_resource(dev, mem);  in ingenic_rproc_probe()
188 	if (IS_ERR(vpu->aux_base)) {  in ingenic_rproc_probe()
190 		return PTR_ERR(vpu->aux_base);  in ingenic_rproc_probe()
197 		vpu->mem_info[i].base = devm_ioremap_resource(dev, mem);  in ingenic_rproc_probe()
198 		if (IS_ERR(vpu->mem_info[i].base)) {  in ingenic_rproc_probe()
199 			ret = PTR_ERR(vpu->mem_info[i].base);  in ingenic_rproc_probe()
204 		vpu->mem_info[i].len = resource_size(mem);  in ingenic_rproc_probe()
205 		vpu->mem_info[i].map = &vpu_mem_map[i];  in ingenic_rproc_probe()
208 	vpu->clks[0].id = "vpu";  in ingenic_rproc_probe()
209 	vpu->clks[1].id = "aux";  in ingenic_rproc_probe()
211 	ret = devm_clk_bulk_get(dev, ARRAY_SIZE(vpu->clks), vpu->clks);  in ingenic_rproc_probe()
217 	vpu->irq = platform_get_irq(pdev, 0);  in ingenic_rproc_probe()
218 	if (vpu->irq < 0)  in ingenic_rproc_probe()
219 		return vpu->irq;  in ingenic_rproc_probe()
221 	ret = devm_request_irq(dev, vpu->irq, vpu_interrupt, IRQF_NO_AUTOEN,  in ingenic_rproc_probe()
222 			       "VPU", rproc);  in ingenic_rproc_probe()
228 	ret = devm_rproc_add(dev, rproc);  in ingenic_rproc_probe()
238 	{ .compatible = "ingenic,jz4770-vpu-rproc", },
246 		.name = "ingenic-vpu",