[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>
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@ -1100,6 +1100,8 @@ mpsc_start_rx(struct mpsc_port_info *pi)
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{
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pr_debug("mpsc_start_rx[%d]: Starting...\n", pi->port.line);
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/* Issue a Receive Abort to clear any receive errors */
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writel(MPSC_CHR_2_RA, pi->mpsc_base + MPSC_CHR_2);
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if (pi->rcv_data) {
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mpsc_enter_hunt(pi);
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mpsc_sdma_cmd(pi, SDMA_SDCM_ERD);
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