[PATCH 15/19] UBUNTU: SAUCE: ARM: highbank: retry wfi on reset request

[Ike Panhc]

From: Rob Herring <rob.herring at calxeda.com>

BugLink: http://launchpad.net/bugs/1059432

In some cases, an interrupt can occur and prevent cause failure to enter
wfi. This causes reset to hang. Retrying the wfi should be enough to
prevent reset from hanging.

Signed-off-by: Rob Herring <rob.herring at calxeda.com>
Signed-off-by: Ike Panhc <ike.pan at canonical.com>
---
 arch/arm/mach-highbank/system.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c
index 82c2723..86e37cd 100644
--- a/arch/arm/mach-highbank/system.c
+++ b/arch/arm/mach-highbank/system.c
@@ -28,6 +28,7 @@ void highbank_restart(char mode, const char *cmd)
 		hignbank_set_pwr_soft_reset();
 
 	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
-	cpu_do_idle();
+	while (1)
+		cpu_do_idle();
 }
 
-- 
1.7.9.5