1 files changed, 33 insertions, 0 deletions
diff --git a/boot/bootflow.c b/boot/bootflow.c
index 8c649e8e66c..81b5829d5b3 100644
--- a/boot/bootflow.c
+++ b/boot/bootflow.c
@@ -14,6 +14,7 @@
 #include <dm.h>
 #include <env_internal.h>
 #include <malloc.h>
+#include <serial.h>
 #include <dm/device-internal.h>
 #include <dm/uclass-internal.h>
 
@@ -854,3 +855,35 @@ int bootflow_cmdline_get_arg(struct bootflow *bflow, const char *arg,
 
 	return ret;
 }
+
+int bootflow_cmdline_auto(struct bootflow *bflow, const char *arg)
+{
+	struct serial_device_info info;
+	char buf[50];
+	int ret;
+
+	ret = serial_getinfo(gd->cur_serial_dev, &info);
+	if (ret)
+		return ret;
+
+	*buf = '\0';
+	if (!strcmp("earlycon", arg)) {
+		snprintf(buf, sizeof(buf),
+			 "uart8250,mmio32,%#lx,%dn8", info.addr,
+			 info.baudrate);
+	} else if (!strcmp("console", arg)) {
+		snprintf(buf, sizeof(buf),
+			 "ttyS0,%dn8", info.baudrate);
+	}
+
+	if (!*buf) {
+		printf("Unknown param '%s\n", arg);
+		return -ENOENT;
+	}
+
+	ret = bootflow_cmdline_set_arg(bflow, arg, buf, true);
+	if (ret)
+		return ret;
+
+	return 0;
+}