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| H A D | ns16550.c | 7ec8bb15ee368ea54d48d64867767a704d9ab4c2 Thu Dec 27 09:56:54 UTC 2007 Wolfgang Denk <wd@denx.de> OMAP5912: fix FIFO handling in UART driver
According to the OMAP5912 Serial Interfaces Reference Guide (see
http://focus.ti.com/lit/ug/spru760c/spru760c.pdf, page 150), the
FIFO_EN enable bit in the FIFO Control Register (FCR) can only be
changed when the baud clock is not running, i. e. when both DLL and
DLH are set to 0.
Thus make sure that DLL and DLH are 0 when writing the FCR.
Signed-off-by: Wolfgang Denk <wd@denx.de>
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