1 // SPDX-License-Identifier: GPL-2.0-or-later
10 #include <linux/of.h>
13 #include <linux/reset.h>
23 #define MESON_SMP_SRAM_CPU_CTRL_ADDR_REG(c)	(0x04 + ((c - 1) << 2))
31 #define MESON_CPU_PWR_A9_MEM_PD0_M(c)		(0x0f << (32 - (c * 4)))
106 	meson_smp_prepare_cpus("arm,cortex-a5-scu", "amlogic,meson8b-pmu",  in meson8b_smp_prepare_cpus()
107 			       "amlogic,meson8b-smp-sram");  in meson8b_smp_prepare_cpus()
112 	meson_smp_prepare_cpus("arm,cortex-a9-scu", "amlogic,meson8-pmu",  in meson8_smp_prepare_cpus()
113 			       "amlogic,meson8-smp-sram");  in meson8_smp_prepare_cpus()
121 	 * system without power-cycling, or when taking the CPU offline and  in meson_smp_begin_secondary_boot()
143 			return -ETIMEDOUT;  in meson_smp_finalize_secondary_boot()
163 		pr_err("Couldn't get the reset controller for CPU%d\n", cpu);  in meson8_smp_boot_secondary()
169 	/* Reset enable */  in meson8_smp_boot_secondary()
172 		pr_err("Failed to assert CPU%d reset\n", cpu);  in meson8_smp_boot_secondary()
173 		goto out;  in meson8_smp_boot_secondary()
181 		goto out;  in meson8_smp_boot_secondary()
190 		pr_err("Error when disabling isolation of CPU%d\n", cpu);  in meson8_smp_boot_secondary()
191 		goto out;  in meson8_smp_boot_secondary()
194 	/* Reset disable */  in meson8_smp_boot_secondary()
197 		pr_err("Failed to de-assert CPU%d reset\n", cpu);  in meson8_smp_boot_secondary()
198 		goto out;  in meson8_smp_boot_secondary()
203 		goto out;  in meson8_smp_boot_secondary()
205 out:  in meson8_smp_boot_secondary()
220 		pr_err("Couldn't get the reset controller for CPU%d\n", cpu);  in meson8b_smp_boot_secondary()
231 		goto out;  in meson8b_smp_boot_secondary()
236 	/* Reset enable */  in meson8b_smp_boot_secondary()
239 		pr_err("Failed to assert CPU%d reset\n", cpu);  in meson8b_smp_boot_secondary()
240 		goto out;  in meson8b_smp_boot_secondary()
248 		goto out;  in meson8b_smp_boot_secondary()
256 		goto out;  in meson8b_smp_boot_secondary()
266 		goto out;  in meson8b_smp_boot_secondary()
273 		pr_err("Error when disabling isolation of CPU%d\n", cpu);  in meson8b_smp_boot_secondary()
274 		goto out;  in meson8b_smp_boot_secondary()
277 	/* Reset disable */  in meson8b_smp_boot_secondary()
280 		pr_err("Failed to de-assert CPU%d reset\n", cpu);  in meson8b_smp_boot_secondary()
281 		goto out;  in meson8b_smp_boot_secondary()
286 		goto out;  in meson8b_smp_boot_secondary()
288 out:  in meson8b_smp_boot_secondary()
326 		pr_err("Error while waiting for SCU power-off on CPU%d\n",  in meson8_smp_cpu_kill()
328 		return -ETIMEDOUT;  in meson8_smp_cpu_kill()
347 		pr_err("Couldn't change sleep status of CPU%d\n", cpu);  in meson8_smp_cpu_kill()
368 		pr_err("Error while waiting for SCU power-off on CPU%d\n",  in meson8b_smp_cpu_kill()
370 		return -ETIMEDOUT;  in meson8b_smp_cpu_kill()
397 		pr_err("Couldn't change sleep status of CPU%d\n", cpu);  in meson8b_smp_cpu_kill()
405 		pr_err("Couldn't power down the memory of CPU%d\n", cpu);  in meson8b_smp_cpu_kill()
431 CPU_METHOD_OF_DECLARE(meson8_smp, "amlogic,meson8-smp", &meson8_smp_ops);
432 CPU_METHOD_OF_DECLARE(meson8b_smp, "amlogic,meson8b-smp", &meson8b_smp_ops);