ARM: highbank: retry wfi on reset request

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@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

diff --git a/arch/arm/mach-highbank/system.c b/arch/arm/mach-highbank/system.c
index 82c27230d4a93e657ca4c4a4e1e79439c422bbae..86e37cd9376cc7a522a17a65ca39cc127dd7deeb 100644 (file)
--- 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();
 }