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-rw-r--r--arch/arm64/kernel/cpu_ops.c22
1 files changed, 5 insertions, 17 deletions
diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c
index aa0c9e78dbe1..e2ba274612cf 100644
--- a/arch/arm64/kernel/cpu_ops.c
+++ b/arch/arm64/kernel/cpu_ops.c
@@ -78,22 +78,10 @@ int __init cpu_read_ops(struct device_node *dn, int cpu)
78 78
79void __init cpu_read_bootcpu_ops(void) 79void __init cpu_read_bootcpu_ops(void)
80{ 80{
81 struct device_node *dn = NULL; 81 struct device_node *dn = of_get_cpu_node(0, NULL);
82 u64 mpidr = cpu_logical_map(0); 82 if (!dn) {
83 83 pr_err("Failed to find device node for boot cpu\n");
84 while ((dn = of_find_node_by_type(dn, "cpu"))) { 84 return;
85 u64 hwid;
86 const __be32 *prop;
87
88 prop = of_get_property(dn, "reg", NULL);
89 if (!prop)
90 continue;
91
92 hwid = of_read_number(prop, of_n_addr_cells(dn));
93 if (hwid == mpidr) {
94 cpu_read_ops(dn, 0);
95 of_node_put(dn);
96 return;
97 }
98 } 85 }
86 cpu_read_ops(dn, 0);
99} 87}