diff options
Diffstat (limited to 'drivers/serial/serial_bcm283x_mu.c')
| -rw-r--r-- | drivers/serial/serial_bcm283x_mu.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/serial/serial_bcm283x_mu.c b/drivers/serial/serial_bcm283x_mu.c index 40029fa..d87b44e 100644 --- a/drivers/serial/serial_bcm283x_mu.c +++ b/drivers/serial/serial_bcm283x_mu.c @@ -51,6 +51,8 @@ struct bcm283x_mu_priv { struct bcm283x_mu_regs *regs; }; +static int bcm283x_mu_serial_getc(struct udevice *dev); + static int bcm283x_mu_serial_setbrg(struct udevice *dev, int baudrate) { struct bcm283x_mu_serial_platdata *plat = dev_get_platdata(dev); @@ -59,13 +61,17 @@ static int bcm283x_mu_serial_setbrg(struct udevice *dev, int baudrate) u32 divider; if (plat->skip_init) - return 0; + goto out; divider = plat->clock / (baudrate * 8); writel(BCM283X_MU_LCR_DATA_SIZE_8, ®s->lcr); writel(divider - 1, ®s->baud); +out: + /* Flush the RX queue - all data in there is bogus */ + while (bcm283x_mu_serial_getc(dev) != -EAGAIN) ; + return 0; } |