1 // SPDX-License-Identifier: GPL-2.0-or-later
35 static struct regmap *pmu;  variable
43 	ret = regmap_read(pmu, PMU_PWRDN_ST, &val);  in pmu_power_domain_is_on()
57 		np = dev->of_node;  in rockchip_get_core_reset()
85 		ret = regmap_update_bits(pmu, PMU_PWRDN_CON, BIT(pd), val);  in pmu_set_power_domain()
92 		ret = -1;  in pmu_set_power_domain()
120 	if (!sram_base_addr || (has_pmu && !pmu)) {  in rockchip_boot_secondary()
121 		pr_err("%s: sram or pmu missing for cpu boot\n", __func__);  in rockchip_boot_secondary()
122 		return -ENXIO;  in rockchip_boot_secondary()
128 		return -ENXIO;  in rockchip_boot_secondary()
146 		 * (e.g: cpu frequency, bootrom frequency, sram frequency, ...)  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
168 	unsigned int trampoline_sz = &rockchip_secondary_trampoline_end -  in rockchip_smp_prepare_sram()
185 		return -EINVAL;  in rockchip_smp_prepare_sram()
188 	/* set the boot function for the sram code */  in rockchip_smp_prepare_sram()
191 	/* copy the trampoline to sram, that runs during startup of the core */  in rockchip_smp_prepare_sram()
202 	.name = "rockchip-pmu",
214 	 * This function is only called via smp_ops->smp_prepare_cpu().  in rockchip_smp_prepare_pmu()
216 	 * and has an "enable-method" property that selects the SMP  in rockchip_smp_prepare_pmu()
221 	pmu = syscon_regmap_lookup_by_phandle(node, "rockchip,pmu");  in rockchip_smp_prepare_pmu()
223 	if (!IS_ERR(pmu))  in rockchip_smp_prepare_pmu()
226 	pmu = syscon_regmap_lookup_by_compatible("rockchip,rk3066-pmu");  in rockchip_smp_prepare_pmu()
227 	if (!IS_ERR(pmu))  in rockchip_smp_prepare_pmu()
230 	/* fallback, create our own regmap for the pmu area */  in rockchip_smp_prepare_pmu()
231 	pmu = NULL;  in rockchip_smp_prepare_pmu()
232 	node = of_find_compatible_node(NULL, NULL, "rockchip,rk3066-pmu");  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()
241 		pr_err("%s: could not map pmu registers\n", __func__);  in rockchip_smp_prepare_pmu()
242 		return -ENOMEM;  in rockchip_smp_prepare_pmu()
245 	pmu = regmap_init_mmio(NULL, pmu_base, &rockchip_pmu_regmap_config);  in rockchip_smp_prepare_pmu()
246 	if (IS_ERR(pmu)) {  in rockchip_smp_prepare_pmu()
247 		int ret = PTR_ERR(pmu);  in rockchip_smp_prepare_pmu()
250 		pmu = NULL;  in rockchip_smp_prepare_pmu()
263 	node = of_find_compatible_node(NULL, NULL, "rockchip,rk3066-smp-sram");  in rockchip_smp_prepare_cpus()
265 		pr_err("%s: could not find sram dt node\n", __func__);  in rockchip_smp_prepare_cpus()
271 		pr_err("%s: could not map sram registers\n", __func__);  in rockchip_smp_prepare_cpus()
291 		node = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");  in rockchip_smp_prepare_cpus()
373 CPU_METHOD_OF_DECLARE(rk3036_smp, "rockchip,rk3036-smp", &rk3036_smp_ops);
374 CPU_METHOD_OF_DECLARE(rk3066_smp, "rockchip,rk3066-smp", &rockchip_smp_ops);