ARM: OMAP4+: move errata initialization to omap4_pm_init_early

Move all OMAP4 PM errata initializations to centralized location in
omap4_pm_init_early. This allows for users to utilize the erratas
in various submodules as needed.

Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-omap2/pm44xx.c

@@ -24,6 +24,8 @@
 #include "powerdomain.h"
 #include "pm.h"
 
+u16 pm44xx_errata;
+
 struct power_state {
 	struct powerdomain *pwrdm;
 	u32 next_state;
@@ -198,6 +200,19 @@ static inline int omap4_init_static_deps(void)
 	return ret;
 }
 
+/**
+ * omap4_pm_init_early - Does early initialization necessary for OMAP4+ devices
+ *
+ * Initializes basic stuff for power management functionality.
+ */
+int __init omap4_pm_init_early(void)
+{
+	if (cpu_is_omap446x())
+		pm44xx_errata |= PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD;
+
+	return 0;
+}
+
 /**
  * omap4_pm_init - Init routine for OMAP4+ devices
  *