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Diffstat (limited to 'target/linux/brcm47xx/patches-3.6/546-bcma-set-the-pmu-watchdog-if-available.patch')
-rw-r--r--target/linux/brcm47xx/patches-3.6/546-bcma-set-the-pmu-watchdog-if-available.patch57
1 files changed, 57 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.6/546-bcma-set-the-pmu-watchdog-if-available.patch b/target/linux/brcm47xx/patches-3.6/546-bcma-set-the-pmu-watchdog-if-available.patch
new file mode 100644
index 0000000000..651415eb9b
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.6/546-bcma-set-the-pmu-watchdog-if-available.patch
@@ -0,0 +1,57 @@
+--- a/drivers/bcma/driver_chipcommon.c
++++ b/drivers/bcma/driver_chipcommon.c
+@@ -31,6 +31,28 @@ static u32 bcma_chipco_alp_clock(struct
+ return 20000000;
+ }
+
++static u32 bcma_chipco_watchdog_get_max_timer(struct bcma_drv_cc *cc)
++{
++ struct bcma_bus *bus = cc->core->bus;
++ u32 nb;
++
++ if (cc->capabilities & BCMA_CC_CAP_PMU) {
++ if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706)
++ nb = 32;
++ else if (cc->core->id.rev < 26)
++ nb = 16;
++ else
++ nb = (cc->core->id.rev >= 37) ? 32 : 24;
++ } else {
++ nb = 28;
++ }
++ if (nb == 32)
++ return 0xffffffff;
++ else
++ return (1 << nb) - 1;
++}
++
++
+ void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc)
+ {
+ if (cc->early_setup_done)
+@@ -87,8 +109,23 @@ void bcma_core_chipcommon_init(struct bc
+ /* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
+ void bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks)
+ {
+- /* instant NMI */
+- bcma_cc_write32(cc, BCMA_CC_WATCHDOG, ticks);
++ u32 maxt;
++ enum bcma_clkmode clkmode;
++
++ maxt = bcma_chipco_watchdog_get_max_timer(cc);
++ if (cc->capabilities & BCMA_CC_CAP_PMU) {
++ if (ticks == 1)
++ ticks = 2;
++ else if (ticks > maxt)
++ ticks = maxt;
++ bcma_cc_write32(cc, BCMA_CC_PMU_WATCHDOG, ticks);
++ } else {
++ clkmode = ticks ? BCMA_CLKMODE_FAST : BCMA_CLKMODE_DYNAMIC;
++ bcma_core_set_clockmode(cc->core, clkmode);
++ if (ticks > maxt)
++ ticks = maxt;
++ bcma_cc_write32(cc, BCMA_CC_WATCHDOG, ticks);
++ }
+ }
+
+ void bcma_chipco_irq_mask(struct bcma_drv_cc *cc, u32 mask, u32 value)