ARM: SoC: convert Tegra to SMP operations

Convert Tegra to use struct smp_operations to provide its SMP
and CPU hotplug operations.

Tested on Harmony.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 16 insertions, 4 deletions

diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c
index 1a208dbf682f..24bfb6534c21 100644
--- a/arch/arm/mach-tegra/platsmp.c
+++ b/arch/arm/mach-tegra/platsmp.c
@@ -32,6 +32,8 @@
 #include "flowctrl.h"
 #include "reset.h"
 
+#include "common.h"
+
 extern void tegra_secondary_startup(void);
 
 static void __iomem *scu_base = IO_ADDRESS(TEGRA_ARM_PERIF_BASE);
@@ -50,7 +52,7 @@ static void __iomem *scu_base = IO_ADDRESS(TEGRA_ARM_PERIF_BASE);
 #define CPU_CLOCK(cpu)  (0x1<<(8+cpu))
 #define CPU_RESET(cpu)  (0x1111ul<<(cpu))
 
-void __cpuinit platform_secondary_init(unsigned int cpu)
+static void __cpuinit tegra_secondary_init(unsigned int cpu)
 {
         /*
          * if any interrupts are already enabled for the primary
@@ -117,7 +119,7 @@ static int tegra30_power_up_cpu(unsigned int cpu)
         return 0;
 }
 
-int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int __cpuinit tegra_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
         int status;
 
@@ -165,7 +167,7 @@ done:
  * Initialise the CPU possible map early - this describes the CPUs
  * which may be present or become present in the system.
  */
-void __init smp_init_cpus(void)
+static void __init tegra_smp_init_cpus(void)
 {
         unsigned int i, ncores = scu_get_core_count(scu_base);
 
@@ -181,8 +183,18 @@ void __init smp_init_cpus(void)
         set_smp_cross_call(gic_raise_softirq);
 }
 
-void __init platform_smp_prepare_cpus(unsigned int max_cpus)
+static void __init tegra_smp_prepare_cpus(unsigned int max_cpus)
 {
         tegra_cpu_reset_handler_init();
         scu_enable(scu_base);
 }
+
+struct smp_operations tegra_smp_ops __initdata = {
+        .smp_init_cpus          = tegra_smp_init_cpus,
+        .smp_prepare_cpus       = tegra_smp_prepare_cpus,
+        .smp_secondary_init     = tegra_secondary_init,
+        .smp_boot_secondary     = tegra_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+        .cpu_die                = tegra_cpu_die,
+#endif
+};