ARM: shmobile: Kill off sh73a0 scu_base_addr() function

Replace scu_base_addr() with a static shmobile_scu_base
variable and introduce SH73A0_SCU_BASE.

Later in the series the shmobile_scu_base variable will be
made into a global variable so this is preparation only.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/smp-sh73a0.c

@@ -39,13 +39,12 @@
 
 #define PSTR_SHUTDOWN_MODE	3
 
-static void __iomem *scu_base_addr(void)
-{
-	return (void __iomem *)0xf0000000;
-}
+#define SH73A0_SCU_BASE IOMEM(0xf0000000)
+
+static void __iomem *shmobile_scu_base;
 
 #ifdef CONFIG_HAVE_ARM_TWD
-static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29);
+static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, SH73A0_SCU_BASE + 0x600, 29);
 void __init sh73a0_register_twd(void)
 {
 	twd_local_timer_register(&twd_local_timer);
@@ -71,21 +70,22 @@ static int __cpuinit sh73a0_boot_secondary(unsigned int cpu, struct task_struct
 
 static void __init sh73a0_smp_prepare_cpus(unsigned int max_cpus)
 {
-	scu_enable(scu_base_addr());
+	scu_enable(shmobile_scu_base);
 
 	/* Map the reset vector (in headsmp-sh73a0.S) */
 	__raw_writel(0, APARMBAREA);      /* 4k */
 	__raw_writel(__pa(sh73a0_secondary_vector), SBAR);
 
 	/* enable cache coherency on booting CPU */
-	scu_power_mode(scu_base_addr(), SCU_PM_NORMAL);
+	scu_power_mode(shmobile_scu_base, SCU_PM_NORMAL);
 }
 
 static void __init sh73a0_smp_init_cpus(void)
 {
-	unsigned int ncores = scu_get_core_count(scu_base_addr());
+	/* setup sh73a0 specific SCU base */
+	shmobile_scu_base = SH73A0_SCU_BASE;
 
-	shmobile_smp_init_cpus(ncores);
+	shmobile_smp_init_cpus(scu_get_core_count(shmobile_scu_base));
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
@@ -121,7 +121,7 @@ static void sh73a0_cpu_die(unsigned int cpu)
 	flush_cache_all();
 
 	/* Set power off mode. This takes the CPU out of the MP cluster */
-	scu_power_mode(scu_base_addr(), SCU_PM_POWEROFF);
+	scu_power_mode(shmobile_scu_base, SCU_PM_POWEROFF);
 
 	/* Enter shutdown mode */
 	cpu_do_idle();