dm: serial: Add support for of-platdata

When this feature is enabled, we cannot access the device tree to find out
which serial device to use. Just use the first serial driver we find.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index 0ce5c44..19f38e1 100644 (file)
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -33,7 +33,13 @@ static void serial_find_console_or_panic(void)
        struct udevice *dev;
        int node;
 
-       if (CONFIG_IS_ENABLED(OF_CONTROL) && blob) {
+       if (CONFIG_IS_ENABLED(OF_PLATDATA)) {
+               uclass_first_device(UCLASS_SERIAL, &dev);
+               if (dev) {
+                       gd->cur_serial_dev = dev;
+                       return;
+               }
+       } else if (CONFIG_IS_ENABLED(OF_CONTROL) && blob) {
                /* Check for a chosen console */
                node = fdtdec_get_chosen_node(blob, "stdout-path");
                if (node < 0) {