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Revert "serial: mxc: have putc use the TXFIFO"

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This reverts commit c7878a0483.

Since commit c7878a0483 ("serial: mxc: have putc use the TXFIFO"),
serial console corruption can be seen when priting inside board_init().

Revert it to avoid the regression.

Reported-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Tim Harvey <tharvey@gateworks.com>
This commit is contained in:
Fabio Estevam 2022-11-08 08:39:33 -03:00 committed by Stefano Babic
parent c9713c1551
commit fc1c1760de
1 changed files with 1 additions and 1 deletions
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2
drivers/serial/serial_mxc.c
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@ -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_TXEMPTY))
return -EAGAIN;
writel(ch, &uart->txd);