From: Joshua Housh joshua.housh@calxeda.com

If the pl011 is connected to another device which has hardware flow-control on, characters are never received by the pl011. Asserting RTS when flow-control is off will have no effect.

This is in line with how Linux behaves.

Signed-off-by: Joshua Housh joshua.housh@calxeda.com --- drivers/serial/serial_pl01x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c index b331be7..dfdba9f 100644 --- a/drivers/serial/serial_pl01x.c +++ b/drivers/serial/serial_pl01x.c @@ -163,8 +163,8 @@ static int pl01x_serial_init(void) } #endif /* Finally, enable the UART */ - writel(UART_PL011_CR_UARTEN | UART_PL011_CR_TXE | UART_PL011_CR_RXE, - &regs->pl011_cr); + writel(UART_PL011_CR_UARTEN | UART_PL011_CR_TXE | UART_PL011_CR_RXE | + UART_PL011_CR_RTS, &regs->pl011_cr);

return 0; }