@@ -83,6 +83,7 @@ static int do_load_serial(struct cmd_tbl *cmdtp, int flag, int argc,
printf("## Switch baudrate to %d bps and press ENTER ...\n",
load_baudrate);
udelay(50000);
+ flush();
gd->baudrate = load_baudrate;
serial_setbrg();
udelay(50000);
@@ -126,6 +127,7 @@ static int do_load_serial(struct cmd_tbl *cmdtp, int flag, int argc,
printf("## Switch baudrate to %d bps and press ESC ...\n",
current_baudrate);
udelay(50000);
+ flush();
gd->baudrate = current_baudrate;
serial_setbrg();
udelay(50000);
@@ -317,6 +319,7 @@ int do_save_serial(struct cmd_tbl *cmdtp, int flag, int argc,
printf("## Switch baudrate to %d bps and press ESC ...\n",
(int)current_baudrate);
udelay(50000);
+ flush();
gd->baudrate = current_baudrate;
serial_setbrg();
udelay(50000);
@@ -471,6 +474,7 @@ static int do_load_serial_bin(struct cmd_tbl *cmdtp, int flag, int argc,
printf("## Switch baudrate to %d bps and press ENTER ...\n",
load_baudrate);
udelay(50000);
+ flush();
gd->baudrate = load_baudrate;
serial_setbrg();
udelay(50000);
@@ -533,6 +537,7 @@ static int do_load_serial_bin(struct cmd_tbl *cmdtp, int flag, int argc,
printf("## Switch baudrate to %d bps and press ESC ...\n",
current_baudrate);
udelay(50000);
+ flush();
gd->baudrate = current_baudrate;
serial_setbrg();
udelay(50000);
@@ -476,6 +476,7 @@ static int on_baudrate(const char *name, const char *value, enum env_op op,
printf("## Switch baudrate to %d bps and press ENTER ...\n",
baudrate);
udelay(50000);
+ flush();
}
gd->baudrate = baudrate;
Changing baudrate is a sensitive operation. To ensure that U-Boot messages printed before changing baudrate are not lost, call new U-Boot console flush() function. Signed-off-by: Pali Rohár <pali@kernel.org> --- Changes in v3: * Remove support from serial.c * Fix commit message --- cmd/load.c | 5 +++++ drivers/serial/serial-uclass.c | 1 + 2 files changed, 6 insertions(+)