[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>
diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c
index 0186c80..de2b715 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 @@
{
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 @@
* 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
/*