1 // SPDX-License-Identifier: GPL-2.0-or-later
57 		np = dev->of_node;  in rockchip_get_core_reset()
77 	 * We need to soft reset the cpu when we turn off the cpu power domain,  in pmu_set_power_domain()
87 			pr_err("%s: could not update power domain\n",  in pmu_set_power_domain()
92 		ret = -1;  in pmu_set_power_domain()
96 				pr_err("%s: could not read power domain state\n",  in pmu_set_power_domain()
122 		return -ENXIO;  in rockchip_boot_secondary()
128 		return -ENXIO;  in rockchip_boot_secondary()
159  * rockchip_smp_prepare_sram - populate necessary sram block
160  * Starting cores execute the code residing at the start of the on-chip sram
161  * after power-on. Therefore make sure, this sram region is reserved and
163  * core to the real startup code in ram into the sram-region.
164  * @node: mmio-sram device node
166 static int __init rockchip_smp_prepare_sram(struct device_node *node)  in rockchip_smp_prepare_sram()  argument
168 	unsigned int trampoline_sz = &rockchip_secondary_trampoline_end -  in rockchip_smp_prepare_sram()
174 	ret = of_address_to_resource(node, 0, &res);  in rockchip_smp_prepare_sram()
176 		pr_err("%s: could not get address for node %pOF\n",  in rockchip_smp_prepare_sram()
177 		       __func__, node);  in rockchip_smp_prepare_sram()
185 		return -EINVAL;  in rockchip_smp_prepare_sram()
202 	.name = "rockchip-pmu",
210 	struct device_node *node;  in rockchip_smp_prepare_pmu()  local
214 	 * This function is only called via smp_ops->smp_prepare_cpu().  in rockchip_smp_prepare_pmu()
215 	 * That only happens if a "/cpus" device tree node exists  in rockchip_smp_prepare_pmu()
216 	 * and has an "enable-method" property that selects the SMP  in rockchip_smp_prepare_pmu()
219 	node = of_find_node_by_path("/cpus");  in rockchip_smp_prepare_pmu()
221 	pmu = syscon_regmap_lookup_by_phandle(node, "rockchip,pmu");  in rockchip_smp_prepare_pmu()
222 	of_node_put(node);  in rockchip_smp_prepare_pmu()
226 	pmu = syscon_regmap_lookup_by_compatible("rockchip,rk3066-pmu");  in rockchip_smp_prepare_pmu()
232 	node = of_find_compatible_node(NULL, NULL, "rockchip,rk3066-pmu");  in rockchip_smp_prepare_pmu()
233 	if (!node) {  in rockchip_smp_prepare_pmu()
234 		pr_err("%s: could not find pmu dt node\n", __func__);  in rockchip_smp_prepare_pmu()
235 		return -ENODEV;  in rockchip_smp_prepare_pmu()
238 	pmu_base = of_iomap(node, 0);  in rockchip_smp_prepare_pmu()
239 	of_node_put(node);  in rockchip_smp_prepare_pmu()
242 		return -ENOMEM;  in rockchip_smp_prepare_pmu()
260 	struct device_node *node;  in rockchip_smp_prepare_cpus()  local
263 	node = of_find_compatible_node(NULL, NULL, "rockchip,rk3066-smp-sram");  in rockchip_smp_prepare_cpus()
264 	if (!node) {  in rockchip_smp_prepare_cpus()
265 		pr_err("%s: could not find sram dt node\n", __func__);  in rockchip_smp_prepare_cpus()
269 	sram_base_addr = of_iomap(node, 0);  in rockchip_smp_prepare_cpus()
272 		of_node_put(node);  in rockchip_smp_prepare_cpus()
277 		of_node_put(node);  in rockchip_smp_prepare_cpus()
282 		/* enable the SCU power domain */  in rockchip_smp_prepare_cpus()
285 		of_node_put(node);  in rockchip_smp_prepare_cpus()
286 		node = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");  in rockchip_smp_prepare_cpus()
287 		if (!node) {  in rockchip_smp_prepare_cpus()
292 		scu_base_addr = of_iomap(node, 0);  in rockchip_smp_prepare_cpus()
295 			of_node_put(node);  in rockchip_smp_prepare_cpus()
320 		if (rockchip_smp_prepare_sram(node)) {  in rockchip_smp_prepare_cpus()
321 			of_node_put(node);  in rockchip_smp_prepare_cpus()
326 	of_node_put(node);  in rockchip_smp_prepare_cpus()
342 	 * prior to having the power domain disabled.  in rockchip_cpu_kill()
376 CPU_METHOD_OF_DECLARE(rk3036_smp, "rockchip,rk3036-smp", &rk3036_smp_ops);
377 CPU_METHOD_OF_DECLARE(rk3066_smp, "rockchip,rk3066-smp", &rockchip_smp_ops);