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| author | Kukjin Kim <kgene.kim@samsung.com> | 2012-01-25 15:35:57 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-03-14 02:35:15 -0700 |
| commit | e9bba61522a7650b0e4d9952bb3ece81d473a52c (patch) | |
| tree | 7619168da722aaecb9a43837298a161b7f164e79 /arch/arm/mach-exynos/platsmp.c | |
| parent | 330c90a54c82596dfe355163c4d888e51a0fe65b (diff) | |
| download | linux-e9bba61522a7650b0e4d9952bb3ece81d473a52c.tar.gz linux-e9bba61522a7650b0e4d9952bb3ece81d473a52c.tar.bz2 linux-e9bba61522a7650b0e4d9952bb3ece81d473a52c.zip | |
ARM: EXYNOS: add support get_core_count() for EXYNOS5250
The EXYNOS5250 has two Cortex-A15 cores and there's no
need to call scu_enable() in platform_smp_prepare_cpus()
because Cortex-A15 has no regarding scu register which
can be used for getting number of cores.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos/platsmp.c')
| -rw-r--r-- | arch/arm/mach-exynos/platsmp.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index 0f2035a1eb6e..36c3984aaa47 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -166,7 +166,10 @@ void __init smp_init_cpus(void) void __iomem *scu_base = scu_base_addr(); unsigned int i, ncores; - ncores = scu_base ? scu_get_core_count(scu_base) : 1; + if (soc_is_exynos5250()) + ncores = 2; + else + ncores = scu_base ? scu_get_core_count(scu_base) : 1; /* sanity check */ if (ncores > nr_cpu_ids) { @@ -183,8 +186,8 @@ void __init smp_init_cpus(void) void __init platform_smp_prepare_cpus(unsigned int max_cpus) { - - scu_enable(scu_base_addr()); + if (!soc_is_exynos5250()) + scu_enable(scu_base_addr()); /* * Write the address of secondary startup into the |