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| author | Carlos Sanchez <csanchez@windy.az.mvista.com> | 2005-10-30 15:02:53 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-30 17:37:25 -0800 |
| commit | f7232056bff5fe2d3bfeab35252a66ebaeb5bbde (patch) | |
| tree | a3dd4fd813ca169e9364a1d751c6236c3d2715c4 /drivers/serial/mpsc.c | |
| parent | 6ea05db06f32adac65b4c4e95ef998839149de12 (diff) | |
| download | linux-f7232056bff5fe2d3bfeab35252a66ebaeb5bbde.tar.bz2 | |
[PATCH] Added a Receive_Abort to the Marvell serial driver
Added a Receive_Abort to the Marvell serial driver
Fix occasional input overrun errors on Marvell serial driver
- If the Marvell serial driver is repeatedly started and then stopped it
will occasionally report an input overrun error when started.
- Added a Receive_Abort to the Marvell serial driver to abort previously
received receive errors when re-starting the receive
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Carlos Sanchez <csanchez@mvista.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/serial/mpsc.c')
| -rw-r--r-- | drivers/serial/mpsc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/serial/mpsc.c b/drivers/serial/mpsc.c index efe79b1fd431..aec83f577ce6 100644 --- a/drivers/serial/mpsc.c +++ b/drivers/serial/mpsc.c @@ -1100,6 +1100,8 @@ mpsc_start_rx(struct mpsc_port_info *pi) { pr_debug("mpsc_start_rx[%d]: Starting...\n", pi->port.line); + /* Issue a Receive Abort to clear any receive errors */ + writel(MPSC_CHR_2_RA, pi->mpsc_base + MPSC_CHR_2); if (pi->rcv_data) { mpsc_enter_hunt(pi); mpsc_sdma_cmd(pi, SDMA_SDCM_ERD); |