+static int atmel_serial_pending(struct udevice *dev, bool input)
+{
+ struct atmel_serial_priv *priv = dev_get_priv(dev);
+ uint32_t csr = readl(&priv->usart->csr);
+
+ if (input)
+ return csr & USART3_BIT(RXRDY) ? 1 : 0;
+ else
+ return csr & USART3_BIT(TXEMPTY) ? 0 : 1;
+}
+
+static const struct dm_serial_ops atmel_serial_ops = {
+ .putc = atmel_serial_putc,
+ .pending = atmel_serial_pending,
+ .getc = atmel_serial_getc,
+ .setbrg = atmel_serial_setbrg,
+};
+
+static int atmel_serial_probe(struct udevice *dev)
+{
+ struct atmel_serial_platdata *plat = dev->platdata;
+ struct atmel_serial_priv *priv = dev_get_priv(dev);
+
+ priv->usart = (atmel_usart3_t *)plat->base_addr;
+ atmel_serial_init_internal(priv->usart);
+
+ return 0;
+}
+
+U_BOOT_DRIVER(serial_atmel) = {
+ .name = "serial_atmel",
+ .id = UCLASS_SERIAL,
+ .probe = atmel_serial_probe,
+ .ops = &atmel_serial_ops,
+ .flags = DM_FLAG_PRE_RELOC,
+ .priv_auto_alloc_size = sizeof(struct atmel_serial_priv),
+};
+#endif