Scott Wood wrote:
> This prevents output problems (including a loss of synchronization
> observed on p2020 that persisted for quite a while) if SPL has output
> still on its way out. I'm not sure why this is only now beginning to
> happen, though.
The subject line says "TENT", but the macro says "TEMT".
Also, it would be nice to see a description of this bit somewhere.
>
> Signed-off-by: Scott Wood <scottw...@freescale.com>
> ---
> drivers/serial/ns16550.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
> index 0c23955..66201b6 100644
> --- a/drivers/serial/ns16550.c
> +++ b/drivers/serial/ns16550.c
> @@ -36,6 +36,9 @@
>
> void NS16550_init(NS16550_t com_port, int baud_divisor)
> {
> + while (!(serial_in(&com_port->lsr) & UART_LSR_TEMT))
> + ;
> +
> serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier);
> #if (defined(CONFIG_OMAP) && !defined(CONFIG_OMAP3_ZOOM2)) || \
> defined(CONFIG_AM33XX)
--
Timur Tabi
Linux kernel developer at Freescale
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