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m68knommu: fix coldfire tcdrain

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Fix tcdrain on coldfire uarts.
Currently with coldfire uarts tcdrain returns without waiting for txempty,
because (tx)fifosize is 0.  Fix that and call uart_update_timeout when
setting the baud rate, otherwise tcdrain will wait for an half our :)
Also constify mcf_uart_ops.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Philippe De Muyter
2010-04-02 17:56:08 +02:00
committed by Greg Ungerer
parent 6ecaf44e62
commit 3732b68f22
2 changed files with 8 additions and 1 deletions
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5
arch/m68k/include/asm/mcfuart.h
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@@ -212,5 +212,10 @@ struct mcf_platform_uart {
#define MCFUART_URF_RXS 0xc0 /* Receiver status */
#endif
#if defined(CONFIG_M5272)
#define MCFUART_TXFIFOSIZE 25
#else
#define MCFUART_TXFIFOSIZE 1
#endif
/****************************************************************************/
#endif /* mcfuart_h */