Hi Fabio

On 10/26/2022 6:19 AM, Fabio Estevam wrote:
Hi Tim,

On 25/10/2022 18:37, Tim Harvey wrote:

Fabio and Pali,

Seems reasonable but this does not resolve the problem. Whatever I
print in board_init gets cutoff by the print from dm_announce.

Should we check for both TXFULL and TXEMPTY conditions?

--- a/drivers/serial/serial_mxc.c
+++ b/drivers/serial/serial_mxc.c
@@ -311,7 +311,7 @@ static int mxc_serial_putc(struct udevice *dev, const char ch)
         struct mxc_serial_plat *plat = dev_get_plat(dev);
         struct mxc_uart *const uart = plat->reg;

-       if (readl(&uart->ts) & UTS_TXFULL)
+       if ((readl(&uart->ts) & UTS_TXFULL) || !(readl(&uart->ts) & UTS_TXEMPTY))

This may bring the issue that Johannes met back

Regards,
Peng.

                 return -EAGAIN;

         writel(ch, &uart->txd);

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