aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-realview/platsmp.c
diff options
context:
space:
mode:
authorCatalin Marinas <catalin.marinas@arm.com>2008-02-04 17:39:00 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-02-04 17:52:24 +0000
commit7dd19e755dbe481ae42590dbd921dfd47e94779c (patch)
tree66056a17aa12457f8b5f91995fe774958a1d3534 /arch/arm/mach-realview/platsmp.c
parent0fc2a1616f37175ff0cf54b99e9b76f7717a3f10 (diff)
[ARM] 4818/1: RealView: Add core-tile detection
This patch adds the core-tile detection and only enables devices if the corresponding tile is present. It currently detects the ARM11MPCore via the core_tile_eb11mp() macro. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 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.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c
index 0186c80c904..de2b7159557 100644
--- a/arch/arm/mach-realview/platsmp.c
+++ b/arch/arm/mach-realview/platsmp.c
@@ -18,6 +18,7 @@
#include <asm/hardware/arm_scu.h>
#include <asm/hardware.h>
#include <asm/io.h>
+#include <asm/mach-types.h>
extern void realview_secondary_startup(void);
@@ -31,9 +32,13 @@ static unsigned int __init get_core_count(void)
{
unsigned int ncores;
- ncores = __raw_readl(__io_address(REALVIEW_EB11MP_SCU_BASE) + SCU_CONFIG);
+ if (machine_is_realview_eb() && core_tile_eb11mp()) {
+ ncores = __raw_readl(__io_address(REALVIEW_EB11MP_SCU_BASE) + SCU_CONFIG);
+ ncores = (ncores & 0x03) + 1;
+ } else
+ ncores = 1;
- return (ncores & 0x03) + 1;
+ return ncores;
}
static DEFINE_SPINLOCK(boot_lock);
@@ -193,7 +198,8 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
* dummy (!CONFIG_LOCAL_TIMERS), it was already registers in
* realview_timer_init
*/
- local_timer_setup(cpu);
+ if (machine_is_realview_eb() && core_tile_eb11mp())
+ local_timer_setup(cpu);
#endif
/*