ARM: at91: soc: Add init_time callback

Introduce an init_time callback to the at91_init_soc structure to be able to
tweak the init_time machine callback on a per-soc basis, instead of having to
rely on a global one.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

Conflicts:
	arch/arm/mach-at91/setup.c

arch/arm/mach-at91/generic.h

@@ -44,6 +44,7 @@ extern void __init at91_sysirq_mask_rtt(u32 rtt_base);
 extern void __init at91_register_devices(void);
 
  /* Timer */
+extern void __init at91_init_time(void);
 extern void at91rm9200_ioremap_st(u32 addr);
 extern void at91rm9200_timer_init(void);
 extern void at91sam926x_ioremap_pit(u32 addr);

arch/arm/mach-at91/setup.c

@@ -416,3 +416,8 @@ void __init at91_register_devices(void)
 {
 	at91_boot_soc.register_devices();
 }
+
+void __init at91_init_time(void)
+{
+	at91_boot_soc.init_time();
+}

arch/arm/mach-at91/soc.h

@@ -13,6 +13,7 @@ struct at91_init_soc {
 	void (*register_clocks)(void);
 	void (*register_devices)(void);
 	void (*init)(void);
+	void (*init_time)(void);
 };
 
 extern struct at91_init_soc at91_boot_soc;