If semihosting is disabled, then the user has no debugger attached, and
will not see any messages. Don't create a serial device in this
instance, to (hopefully) fall back on another working serial device.
Signed-off-by: Sean Anderson <sean.ander...@seco.com>
---
Changes in v2:
- New
drivers/serial/serial_semihosting.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/serial/serial_semihosting.c
b/drivers/serial/serial_semihosting.c
index b43683c6f1..706c1aabe1 100644
--- a/drivers/serial/serial_semihosting.c
+++ b/drivers/serial/serial_semihosting.c
@@ -25,9 +25,17 @@ static const struct dm_serial_ops smh_serial_ops = {
.getc = smh_serial_getc,
};
+static int smh_serial_bind(struct udevice *dev)
+{
+ if (semihosting_enabled())
+ return 0;
+ return -ENOENT;
+}
+
U_BOOT_DRIVER(smh_serial) = {
.name = "serial_semihosting",
.id = UCLASS_SERIAL,
+ .bind = smh_serial_bind,
.ops = &smh_serial_ops,
.flags = DM_FLAG_PRE_RELOC,
};
@@ -83,7 +91,8 @@ struct serial_device serial_smh_device = {
void smh_serial_initialize(void)
{
- serial_register(&serial_smh_device);
+ if (semihosting_enabled())
+ serial_register(&serial_smh_device);
}
__weak struct serial_device *default_serial_console(void)
--
2.25.1
