diff --git a/drivers/tty/tty_baudrate.c b/drivers/tty/tty_baudrate.c
index eb6b07f079c8..40207cab3b2a 100644
--- a/drivers/tty/tty_baudrate.c
+++ b/drivers/tty/tty_baudrate.c
@@ -20,7 +20,8 @@ static const speed_t baud_table[] = {
 	0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400,
 	4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800,
 #ifdef __sparc__
-	76800, 153600, 307200, 614400, 921600
+	76800, 153600, 307200, 614400, 921600, 500000, 576000,
+	1000000, 1152000, 1500000, 2000000
 #else
 	500000, 576000, 921600, 1000000, 1152000, 1500000, 2000000,
 	2500000, 3000000, 3500000, 4000000
@@ -31,7 +32,8 @@ static const tcflag_t baud_bits[] = {
 	B0, B50, B75, B110, B134, B150, B200, B300, B600, B1200, B1800, B2400,
 	B4800, B9600, B19200, B38400, B57600, B115200, B230400, B460800,
 #ifdef __sparc__
-	B76800, B153600, B307200, B614400, B921600
+	B76800, B153600, B307200, B614400, B921600, B500000, B576000,
+	B1000000, B1152000, B1500000, B2000000
 #else
 	B500000, B576000, B921600, B1000000, B1152000, B1500000, B2000000,
 	B2500000, B3000000, B3500000, B4000000