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| author | Tudor Laurentiu <laurentiu.tudor@freescale.com> | 2013-03-05 17:52:49 +0200 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2013-06-25 18:14:45 -0500 |
| commit | 3978bdb4ed653342b0be66c031bf61b72cc55d60 (patch) | |
| tree | 6bf077e8fe4300e4a672448438a3f3bebbf24717 /drivers/watchdog/booke_wdt.c | |
| parent | a16d8aa4726a944ffc1616689ae34ff6a902faba (diff) | |
| download | op-kernel-dev-3978bdb4ed653342b0be66c031bf61b72cc55d60.zip op-kernel-dev-3978bdb4ed653342b0be66c031bf61b72cc55d60.tar.gz | |
powerpc/watchdog: Don't enable interrupt on PPC64 BookE
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.Tudor@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'drivers/watchdog/booke_wdt.c')
| -rw-r--r-- | 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 a8dbceb3..f1b8d55 100644 --- a/drivers/watchdog/booke_wdt.c +++ b/drivers/watchdog/booke_wdt.c @@ -138,6 +138,14 @@ 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); } |
