diff options
| author | Alexander Graf <agraf@suse.de> | 2018-03-08 00:08:25 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-03-09 20:31:04 +0300 |
| commit | c9bf43dd9d49c5024a9a361b5168ef664186c22a (patch) | |
| tree | 45647f78f24d9a6dc710292d143571d0629c687c /drivers/serial/serial_pl01x_internal.h | |
| parent | 293b9814d760aa736fb4dc6cf0a579aa431282f6 (diff) | |
| download | u-boot-c9bf43dd9d49c5024a9a361b5168ef664186c22a.tar.xz | |
bcm283x_pl011: Flush RX queue after setting baud rate
After the UART was initialized, we may still have bogus data in the
RX queue if it was enabled with incorrect pin muxing before.
So let's flush the RX queue whenever we initialize baud rates.
This fixes a regression with the dynamic pinmuxing code when enable_uart=1
is not set in config.txt on Raspberry Pis that use pl011 for serial.
Fixes: caf2233b28 ("bcm283x: Add pinctrl driver")
Reported-by: Göran Lundberg <goran@lundberg.email>
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Tested-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Diffstat (limited to 'drivers/serial/serial_pl01x_internal.h')
| -rw-r--r-- | drivers/serial/serial_pl01x_internal.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/serial/serial_pl01x_internal.h b/drivers/serial/serial_pl01x_internal.h index c56dd54c7b..d4605f24a3 100644 --- a/drivers/serial/serial_pl01x_internal.h +++ b/drivers/serial/serial_pl01x_internal.h @@ -43,7 +43,12 @@ struct pl01x_regs { int pl01x_serial_ofdata_to_platdata(struct udevice *dev); int pl01x_serial_probe(struct udevice *dev); -extern const struct dm_serial_ops pl01x_serial_ops; + +/* Needed for external pl01x_serial_ops drivers */ +int pl01x_serial_putc(struct udevice *dev, const char ch); +int pl01x_serial_pending(struct udevice *dev, bool input); +int pl01x_serial_getc(struct udevice *dev); +int pl01x_serial_setbrg(struct udevice *dev, int baudrate); struct pl01x_priv { struct pl01x_regs *regs; |