ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/target/linux/layerscape/patches-5.4/819-uart-0011-serial-fsl_lpuart-enable-two-stop-bits.patch b/target/linux/layerscape/patches-5.4/819-uart-0011-serial-fsl_lpuart-enable-two-stop-bits.patch
new file mode 100644
index 0000000..b32f946
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/819-uart-0011-serial-fsl_lpuart-enable-two-stop-bits.patch
@@ -0,0 +1,49 @@
+From 5f1a35c3f5c17cc6229873248a56784fcd03db1c Mon Sep 17 00:00:00 2001
+From: Fugang Duan <fugang.duan@nxp.com>
+Date: Fri, 27 Sep 2019 15:18:41 +0800
+Subject: [PATCH] serial: fsl_lpuart: enable two stop bits
+
+Add two stop bits support.
+User can run the command to enable two stop bits
+for test: stty cstopb -F /dev/ttyLPx
+
+Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
+---
+ drivers/tty/serial/fsl_lpuart.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+--- a/drivers/tty/serial/fsl_lpuart.c
++++ b/drivers/tty/serial/fsl_lpuart.c
+@@ -2154,11 +2154,12 @@ lpuart32_set_termios(struct uart_port *p
+ {
+ struct lpuart_port *sport = container_of(port, struct lpuart_port, port);
+ unsigned long flags;
+- unsigned long ctrl, old_ctrl, modem;
++ unsigned long ctrl, old_ctrl, bd, modem;
+ unsigned int baud;
+ unsigned int old_csize = old ? old->c_cflag & CSIZE : CS8;
+
+ ctrl = old_ctrl = lpuart32_read(&sport->port, UARTCTRL);
++ bd = lpuart32_read(&sport->port, UARTBAUD);
+ modem = lpuart32_read(&sport->port, UARTMODIR);
+ /*
+ * only support CS8 and CS7, and for CS7 must enable PE.
+@@ -2195,7 +2196,9 @@ lpuart32_set_termios(struct uart_port *p
+ }
+
+ if (termios->c_cflag & CSTOPB)
+- termios->c_cflag &= ~CSTOPB;
++ bd |= UARTBAUD_SBNS;
++ else
++ bd &= ~UARTBAUD_SBNS;
+
+ /* parity must be enabled when CS7 to match 8-bits format */
+ if ((termios->c_cflag & CSIZE) == CS7)
+@@ -2272,6 +2275,7 @@ lpuart32_set_termios(struct uart_port *p
+ lpuart32_write(&sport->port, old_ctrl & ~(UARTCTRL_TE | UARTCTRL_RE),
+ UARTCTRL);
+
++ lpuart32_write(&sport->port, bd, UARTBAUD);
+ lpuart32_serial_setbrg(sport, baud);
+ lpuart32_write(&sport->port, modem, UARTMODIR);
+ lpuart32_write(&sport->port, ctrl, UARTCTRL);