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

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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>
This commit is contained in:
Sudeep KarkadaNagesha 2013-07-23 12:32:42 +01:00 committed by Jason Cooper
parent ad81f0545e
commit a7160b7eaf
1 changed files with 1 additions and 18 deletions
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19
arch/arm/mach-mvebu/platsmp.c
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@ -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);
}