1 files changed, 54 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.6/550-ssb-set-the-pmu-watchdog-if-available.patch b/target/linux/brcm47xx/patches-3.6/550-ssb-set-the-pmu-watchdog-if-available.patch
new file mode 100644
index 000000000..f7cc07bcd
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/550-ssb-set-the-pmu-watchdog-if-available.patch
@@ -0,0 +1,54 @@
+--- a/drivers/ssb/driver_chipcommon.c
++++ b/drivers/ssb/driver_chipcommon.c
+@@ -288,6 +288,24 @@ static u32 ssb_chipco_alp_clock(struct s
+ 	return 20000000;
+ }
+ 
++static u32 ssb_chipco_watchdog_get_max_timer(struct ssb_chipcommon *cc)
++{
++	u32 nb;
++
++	if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
++		if (cc->dev->id.revision < 26)
++			nb = 16;
++		else
++			nb = (cc->dev->id.revision >= 37) ? 32 : 24;
++	} else {
++		nb = 28;
++	}
++	if (nb == 32)
++		return 0xffffffff;
++	else
++		return (1 << nb) - 1;
++}
++
+ void ssb_chipcommon_init(struct ssb_chipcommon *cc)
+ {
+ 	if (!cc->dev)
+@@ -405,8 +423,24 @@ void ssb_chipco_timing_init(struct ssb_c
+ /* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
+ void ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc, u32 ticks)
+ {
+-	/* instant NMI */
+-	chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
++	u32 maxt;
++	enum ssb_clkmode clkmode;
++
++	maxt = ssb_chipco_watchdog_get_max_timer(cc);
++	if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
++		if (ticks == 1)
++			ticks = 2;
++		else if (ticks > maxt)
++			ticks = maxt;
++		chipco_write32(cc, SSB_CHIPCO_PMU_WATCHDOG, ticks);
++	} else {
++		clkmode = ticks ? SSB_CLKMODE_FAST : SSB_CLKMODE_DYNAMIC;
++		ssb_chipco_set_clockmode(cc, clkmode);
++		if (ticks > maxt)
++			ticks = maxt;
++		/* instant NMI */
++		chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
++	}
+ }
+ 
+ void ssb_chipco_irq_mask(struct ssb_chipcommon *cc, u32 mask, u32 value)