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authorAlexandre Bounine <alexandre.bounine@idt.com>2010-10-27 15:34:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-27 18:03:15 -0700
commitdd5648c9f53b5cbd9f948d752624400545f979fb (patch)
tree9092a86701a6b4fa5cd722d4f3fc8b803d08b94c /drivers/rapidio/switches/idtcps.c
parent68fe4df5d21294401959fa61d5a7094705ed8f6f (diff)
downloadop-kernel-dev-dd5648c9f53b5cbd9f948d752624400545f979fb.zip
op-kernel-dev-dd5648c9f53b5cbd9f948d752624400545f979fb.tar.gz
rapidio: add default handler for error-stopped state
The default error-stopped state handler provides recovery mechanism as defined by RIO specification. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Micha Nelissen <micha@neli.hopto.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio/switches/idtcps.c')
-rw-r--r--drivers/rapidio/switches/idtcps.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/rapidio/switches/idtcps.c b/drivers/rapidio/switches/idtcps.c
index 2c790c1..fc9f637 100644
--- a/drivers/rapidio/switches/idtcps.c
+++ b/drivers/rapidio/switches/idtcps.c
@@ -117,6 +117,10 @@ idtcps_get_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
static int idtcps_switch_init(struct rio_dev *rdev, int do_enum)
{
+ struct rio_mport *mport = rdev->net->hport;
+ u16 destid = rdev->rswitch->destid;
+ u8 hopcount = rdev->rswitch->hopcount;
+
pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
rdev->rswitch->add_entry = idtcps_route_add_entry;
rdev->rswitch->get_entry = idtcps_route_get_entry;
@@ -126,6 +130,12 @@ static int idtcps_switch_init(struct rio_dev *rdev, int do_enum)
rdev->rswitch->em_init = NULL;
rdev->rswitch->em_handle = NULL;
+ if (do_enum) {
+ /* set TVAL = ~50us */
+ rio_mport_write_config_32(mport, destid, hopcount,
+ rdev->phys_efptr + RIO_PORT_LINKTO_CTL_CSR, 0x8e << 8);
+ }
+
return 0;
}
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