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ARM: dts: list the CPU nodes for EXYNOS5250 

Instead of having to specify the number for CPUs in EXYNOS5250 in
platsmp.c file, let the number of CPUs be determined by having this
information listed in EXYNOS5250 device tree file.

Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Chander Kashyap 2013-06-19 00:29:34 +09:00 committed by Kukjin Kim
parent e6c21cbab5
commit 1897d2f32f
2 changed files with 23 additions and 3 deletions
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16
arch/arm/boot/dts/exynos5250.dtsi
View File

@ -52,6 +52,22 @@
pinctrl3 = &pinctrl_3;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <0>;
};
cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a15";
reg = <1>;
};
};
pd_gsc: gsc-power-domain@0x10044000 {
compatible = "samsung,exynos4210-pd";
reg = <0x10044000 0x20>;

10
arch/arm/mach-exynos/platsmp.c
View File

@ -180,10 +180,14 @@ static void __init exynos_smp_init_cpus(void)
void __iomem *scu_base = scu_base_addr();
unsigned int i, ncores;
if (soc_is_exynos5250())
ncores = 2;
else
if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9)
ncores = scu_base ? scu_get_core_count(scu_base) : 1;
else
/*
* CPU Nodes are passed thru DT and set_cpu_possible
* is set by "arm_dt_init_cpu_maps".
*/
return;
/* sanity check */
if (ncores > nr_cpu_ids) {