From: Tudor Laurentiu <laurentiu.tu...@freescale.com>
Critical interrupts are not handled on PPC64 BookE machines,
so when the first watchdog interrupt fires the machine will
freeze without a warning until it's rebooted by the second
watchdog trigger.
Plus, the interrupt isn't used anyway since the driver
expects a usermode app to ping the watchdog periodically.
Signed-off-by: Laurentiu Tudor <laurentiu.tu...@freescale.com>
---
drivers/watchdog/booke_wdt.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
index c0bc92d..5eb2040 100644
--- a/drivers/watchdog/booke_wdt.c
+++ b/drivers/watchdog/booke_wdt.c
@@ -122,6 +122,14 @@ static void __booke_wdt_enable(void *data)
val &= ~WDTP_MASK;
val |= (TCR_WIE|TCR_WRC(WRC_CHIP)|WDTP(booke_wdt_period));
+#ifdef CONFIG_PPC_BOOK3E_64
+ /*
+ * Crit ints are currently broken on PPC64 Book-E, so
+ * just disable them for now.
+ */
+ val &= ~TCR_WIE;
+#endif
+
mtspr(SPRN_TCR, val);
}
--
1.7.6.5
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
