ARM: shmobile: Use shared SCU SMP boot code on r8a7779

Use shared SCU code on r8a7779 for SMP boot.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 12 insertions, 11 deletions

diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index bb3adae7de0f..1963d0d42afb 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -84,33 +84,34 @@ static int r8a7779_platform_cpu_kill(unsigned int cpu)
 static int __cpuinit r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
         struct r8a7779_pm_ch *ch = NULL;
-        int ret = -EIO;
+        unsigned int lcpu = cpu_logical_map(cpu);
+        int ret;
 
-        cpu = cpu_logical_map(cpu);
+        ret = shmobile_smp_scu_boot_secondary(cpu, idle);
+        if (ret)
+                return ret;
 
-        if (cpu < ARRAY_SIZE(r8a7779_ch_cpu))
-                ch = r8a7779_ch_cpu[cpu];
+        if (lcpu < ARRAY_SIZE(r8a7779_ch_cpu))
+                ch = r8a7779_ch_cpu[lcpu];
 
         if (ch)
                 ret = r8a7779_sysc_power_up(ch);
+        else
+                ret = -EIO;
 
         return ret;
 }
 
 static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus)
 {
-
-        /* setup r8a7779 specific SCU base */
-        shmobile_scu_base = IOMEM(R8A7779_SCU_BASE);
-        scu_enable(shmobile_scu_base);
-
         /* Map the reset vector (in headsmp-scu.S, headsmp.S) */
         __raw_writel(__pa(shmobile_boot_vector), AVECR);
         shmobile_boot_fn = virt_to_phys(shmobile_boot_scu);
         shmobile_boot_arg = (unsigned long)shmobile_scu_base;
 
-        /* enable cache coherency on booting CPU */
-        scu_power_mode(shmobile_scu_base, SCU_PM_NORMAL);
+        /* setup r8a7779 specific SCU bits */
+        shmobile_scu_base = IOMEM(R8A7779_SCU_BASE);
+        shmobile_smp_scu_prepare_cpus(max_cpus);
 
         r8a7779_pm_init();