ARM: actions: remove boot_lock and pen_release

The actions SMP implementation has several issues:

1. pen_release is only ever read and compared to -1, and is defined in
arch/arm/kernel/smp.c to be -1. This test will always succeed.

2. we are already guaranteed to be single threaded while bringing up a
CPU, so the spinlock makes no sense, remove it.

3. owl_secondary_startup() is not referenced nor defined, the prototype
is redundant, remove it.

Signed-off-by: Russell King <[e-mail]>

arch/arm/mach-actions/platsmp.c

···
 static void __iomem *timer_base_addr;
 static int ncores;
 
-static DEFINE_SPINLOCK(boot_lock);
-
-void owl_secondary_startup(void);
-
 static int s500_wakeup_secondary(unsigned int cpu)
 {
 	int ret;
···
 
 static int s500_smp_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	unsigned long timeout;
 	int ret;
 
 	ret = s500_wakeup_secondary(cpu);
···
 
 	udelay(10);
 
-	spin_lock(&boot_lock);
-
 	smp_send_reschedule(cpu);
-
-	timeout = jiffies + (1 * HZ);
-	while (time_before(jiffies, timeout)) {
-		if (pen_release == -1)
-			break;
-	}
 
 	writel(0, timer_base_addr + OWL_CPU1_ADDR + (cpu - 1) * 4);
 	writel(0, timer_base_addr + OWL_CPU1_FLAG + (cpu - 1) * 4);
-
-	spin_unlock(&boot_lock);
 
 	return 0;
 }