Commit f7232056 authored Oct 30, 2005 by Carlos Sanchez Committed by Linus Torvalds Oct 30, 2005

[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>

parent 6ea05db0

drivers/serial/mpsc.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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);

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