diff options
| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2011-05-17 15:44:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-18 02:55:22 -0700 |
| commit | 0bf2461fdd9008290cf429e50e4f362dafab4249 (patch) | |
| tree | 03e3ef8e7c55c86e428cbe9cb72af3b95c77035b /drivers/rapidio/switches/tsi57x.c | |
| parent | a085963a2757b9ab0a7ec1cf4a14aa85935c1e2a (diff) | |
rapidio: fix default routing initialization
Fix switch initialization to ensure that all switches have default routing
disabled. This guarantees that no unexpected RapidIO packets arrive to
the default port set by reset and there is no default routing destination
until it is properly configured by software.
This update also unifies handling of unmapped destinations by tsi57x, IDT
Gen1 and IDT Gen2 switches.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Thomas Moll <thomas.moll@sysgo.com>
Cc: <stable@kernel.org> [2.6.37+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio/switches/tsi57x.c')
| -rw-r--r-- | drivers/rapidio/switches/tsi57x.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/rapidio/switches/tsi57x.c b/drivers/rapidio/switches/tsi57x.c index 1a62934bfeb..db8b8028988 100644 --- a/drivers/rapidio/switches/tsi57x.c +++ b/drivers/rapidio/switches/tsi57x.c @@ -303,6 +303,12 @@ static int tsi57x_switch_init(struct rio_dev *rdev, int do_enum) rdev->rswitch->em_init = tsi57x_em_init; rdev->rswitch->em_handle = tsi57x_em_handler; + if (do_enum) { + /* Ensure that default routing is disabled on startup */ + rio_write_config_32(rdev, RIO_STD_RTE_DEFAULT_PORT, + RIO_INVALID_ROUTE); + } + return 0; } |