arm/kernel/devtree.c

1 // SPDX-License-Identifier: GPL-2.0-only
25 #include <asm/mach-types.h>
37 	const char *method;  in set_smp_ops_by_method()  local
40 	if (of_property_read_string(node, "enable-method", &method))  in set_smp_ops_by_method()
43 	for (; m->method; m++)  in set_smp_ops_by_method()
44 		if (!strcmp(m->method, method)) {  in set_smp_ops_by_method()
45 			smp_set_ops(m->ops);  in set_smp_ops_by_method()
60  * arm_dt_init_cpu_maps - Function retrieves cpu nodes from the device tree
79 	u32 tmp_map[NR_CPUS] = { [0 ... NR_CPUS-1] = MPIDR_INVALID };  in arm_dt_init_cpu_maps()
110 			prop_bytes -= sizeof(*cell);  in arm_dt_init_cpu_maps()
134 		 * requires that if detected the boot CPU must be assigned  in arm_dt_init_cpu_maps()
137 		 * boot CPU MPIDR is detected, this is recorded so that the  in arm_dt_init_cpu_maps()
163 	 * Fallback to an enable-method in the cpus node if nothing found in  in arm_dt_init_cpu_maps()
170 		pr_warn("DT missing boot CPU MPIDR[23:0], fall back to default cpu_logical_map\n");  in arm_dt_init_cpu_maps()
175 	 * Since the boot CPU node contains proper data, and all nodes have  in arm_dt_init_cpu_maps()
200 	*match = m->dt_compat;  in arch_get_next_mach()
205  * setup_machine_fdt - Machine setup when an dtb was passed to the kernel
241 			size -= strlen(prop) + 1;  in setup_machine_fdt()
250 	if (mdesc->dt_fixup)  in setup_machine_fdt()
251 		mdesc->dt_fixup();  in setup_machine_fdt()
256 	__machine_arch_type = mdesc->nr;  in setup_machine_fdt()