ARM: mach-mvebu: remove redundant DT parsing and validation

arm_dt_init_cpu_maps parses the device tree, validates and sets the
cpu_possible_mask appropriately. It is unnecessary to do another DT
parse to get the number of cpus, use num_possible_cpus instead.

Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Acked-by: Gregory Clement <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 1 insertions, 18 deletions

diff --git a/arch/arm/mach-mvebu/platsmp.c b/arch/arm/mach-mvebu/platsmp.c
index 93f2f3ab45f1..9ccbbdb89a4d 100644
--- a/arch/arm/mach-mvebu/platsmp.c
+++ b/arch/arm/mach-mvebu/platsmp.c
@@ -88,28 +88,11 @@ static int __cpuinit armada_xp_boot_secondary(unsigned int cpu,
 
 static void __init armada_xp_smp_init_cpus(void)
 {
-        struct device_node *np;
-        unsigned int i, ncores;
+        unsigned int ncores = num_possible_cpus();
 
-        np = of_find_node_by_name(NULL, "cpus");
-        if (!np)
-                panic("No 'cpus' node found\n");
-
-        ncores = of_get_child_count(np);
         if (ncores == 0 || ncores > ARMADA_XP_MAX_CPUS)
                 panic("Invalid number of CPUs in DT\n");
 
-        /* Limit possible CPUs to defconfig */
-        if (ncores > nr_cpu_ids) {
-                pr_warn("SMP: %d CPUs physically present. Only %d configured.",
-                        ncores, nr_cpu_ids);
-                pr_warn("Clipping CPU count to %d\n", nr_cpu_ids);
-                ncores = nr_cpu_ids;
-        }
-
-        for (i = 0; i < ncores; i++)
-                set_cpu_possible(i, true);
-
         set_smp_cross_call(armada_mpic_send_doorbell);
 }