Merge pull request #9365 from basilfx/feature/slstk3402a_uart_modes

boards: slstk3402a: add uart modes

boards/slstk3402a/include/periph_conf.h

@@ -167,6 +167,9 @@ static const uart_conf_t uart_config[] = {
         .tx_pin = GPIO_PIN(PA, 0),
         .loc = USART_ROUTELOC0_RXLOC_LOC0 |
                USART_ROUTELOC0_TXLOC_LOC0,
+#if EFM32_UART_MODES
+        .mode = UART_MODE_8N1,
+#endif
         .cmu = cmuClock_USART0,
         .irq = USART0_RX_IRQn
     },
@@ -176,6 +179,9 @@ static const uart_conf_t uart_config[] = {
         .tx_pin = GPIO_PIN(PD, 10),
         .loc = LEUART_ROUTELOC0_RXLOC_LOC18 |
                LEUART_ROUTELOC0_TXLOC_LOC18,
+#if EFM32_UART_MODES
+        .mode = UART_MODE_8N1,
+#endif
         .cmu = cmuClock_LEUART0,
         .irq = LEUART0_IRQn
     }