Make the csc and function interrupts ISA on shutdown. This should

help with the hanging problem on reboot.  Note: we need to do the
other things as well.  Also, turn off the bits in the stat change
interrupt mask and the cardbus interrupt mask as well in an attempt to
shut off all interrupt sources.

1 files changed, 13 insertions, 1 deletions

diff --git a/sys/pccard/pcic_pci.c b/sys/pccard/pcic_pci.c
index 4f66cc5..d939ccd 100644
--- a/sys/pccard/pcic_pci.c
+++ b/sys/pccard/pcic_pci.c
@@ -1007,6 +1007,12 @@ pcic_pci_shutdown(device_t dev)
 	sp = &sc->slots[0];
 
 	/*
+	 * Make the chips use ISA again.
+	 */
+	sc->chip->func_intr_way(&sc->slots[0], pcic_iw_isa);
+	sc->chip->csc_intr_way(&sc->slots[0], pcic_iw_isa);
+
+	/*
 	 * Turn off the power to the slot in an attempt to
 	 * keep the system from hanging on reboot.  We also turn off
 	 * card interrupts in an attempt to control interrupt storms.
@@ -1015,8 +1021,11 @@ pcic_pci_shutdown(device_t dev)
 	 * to INT_GEN is that the card is placed into "reset" mode
 	 * where nothing happens until it is taken out of "reset"
 	 * mode.
+	 *
+	 * Also, turn off the generation of status interrupts too.
 	 */
 	sp->putb(sp, PCIC_INT_GEN, 0);
+	sp->putb(sp, PCIC_STAT_INT, 0);
 	sp->putb(sp, PCIC_POWER, 0);
 
 	/*
@@ -1026,8 +1035,11 @@ pcic_pci_shutdown(device_t dev)
 	 * normal course of operations, so we do it here too.  We can't
 	 * lose any interrupts after this point, so go ahead and ack
 	 * everything.  The bits in INT_GEN clear upon reading them.
+	 * We also set the interrupt mask to 0, in an effort to avoid
+	 * getting further interrupts.
 	 */
-	bus_space_write_4(sp->bst, sp->bsh, 0, 0xffffffff);
+	bus_space_write_4(sp->bst, sp->bsh, CB_SOCKET_MASK, 0);
+	bus_space_write_4(sp->bst, sp->bsh, CB_SOCKET_EVENT, 0xffffffff);
 	sp->getb(sp, PCIC_STAT_CHG);
 }