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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-05-16 12:51:14 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-05-17 20:00:37 +0200 |
| commit | a8cbcd92bd4bf893085eddf7f58e63ea98503d94 (patch) | |
| tree | 7798cd1487362208793632f4ff0b4a6f579eb0ec /arch/arm/mach-realview/platsmp.c | |
| parent | [ARM] smp: SCU is used on non-realview platforms (diff) | |
| download | linux-a8cbcd92bd4bf893085eddf7f58e63ea98503d94.tar.xz linux-a8cbcd92bd4bf893085eddf7f58e63ea98503d94.zip | |
[ARM] smp: separate SCU support code from realview
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-realview/platsmp.c')
| -rw-r--r-- | arch/arm/mach-realview/platsmp.c | 29 |
1 files changed, 5 insertions, 24 deletions
diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c index c567d3e24447..c862ce19587e 100644 --- a/arch/arm/mach-realview/platsmp.c +++ b/arch/arm/mach-realview/platsmp.c @@ -45,31 +45,12 @@ static void __iomem *scu_base_addr(void) return (void __iomem *)0; } -static unsigned int __init get_core_count(void) +static inline unsigned int get_core_count(void) { - unsigned int ncores; void __iomem *scu_base = scu_base_addr(); - - if (scu_base) { - ncores = __raw_readl(scu_base + SCU_CONFIG); - ncores = (ncores & 0x03) + 1; - } else - ncores = 1; - - return ncores; -} - -/* - * Setup the SCU - */ -static void scu_enable(void) -{ - u32 scu_ctrl; - void __iomem *scu_base = scu_base_addr(); - - scu_ctrl = __raw_readl(scu_base + SCU_CTRL); - scu_ctrl |= 1; - __raw_writel(scu_ctrl, scu_base + SCU_CTRL); + if (scu_base) + return scu_get_core_count(scu_base); + return 1; } static DEFINE_SPINLOCK(boot_lock); @@ -239,7 +220,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) */ percpu_timer_setup(); - scu_enable(); + scu_enable(scu_base_addr()); poke_milo(); } } |