[PATCH u-boot-marvell 02/13] tools: kwboot: Fix initialization of tty device

Marek Behún
2021-10-25T13:13:36Z

From: Pali Rohár <pali@kernel.org>

Explicitly disable 2 stop bits by clearing CSTOPB flag, disable modem
control flow by clearing CRTSCTS flag and do not send hangup after closing
device by clearing HUPCL flag.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
---
tools/kwboot.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/kwboot.c b/tools/kwboot.c
index 695d433b96..c55b41025b 100644
--- a/tools/kwboot.c
+++ b/tools/kwboot.c
@@ -657,6 +657,7 @@ kwboot_open_tty(const char *path, int baudrate)

cfmakeraw(&tio);
tio.c_cflag |= CREAD | CLOCAL;
+ tio.c_cflag &= ~(CSTOPB | HUPCL | CRTSCTS);
tio.c_cc[VMIN] = 1;
tio.c_cc[VTIME] = 0;

--
2.32.0