diff --git a/examples/platform/silabs/efr32/spi_multiplex.c b/examples/platform/silabs/efr32/spi_multiplex.c
index 26e36c4aab7166..5fda2f395acded 100644
--- a/examples/platform/silabs/efr32/spi_multiplex.c
+++ b/examples/platform/silabs/efr32/spi_multiplex.c
@@ -25,23 +25,4 @@
 #include "em_usart.h"
 #include "spi_multiplex.h"
 
-void SPIDRV_ReInit(uint32_t baudrate)
-{
-    if (USART_BaudrateGet(USART0) == baudrate)
-    {
-        // USART synced to baudrate already
-        return;
-    }
-    // USART is used in MG24 + WF200 combination
-    USART_InitSync_TypeDef usartInit = USART_INITSYNC_DEFAULT;
-    usartInit.msbf                   = true;
-    usartInit.clockMode              = usartClockMode0;
-    usartInit.baudrate               = baudrate;
-    uint32_t databits      = SL_SPIDRV_FRAME_LENGTH - 4U + _USART_FRAME_DATABITS_FOUR;
-    usartInit.databits     = (USART_Databits_TypeDef) databits;
-    usartInit.autoCsEnable = true;
-
-    USART_InitSync(USART0, &usartInit);
-}
-
 #endif /* EFR32MG24 */
\ No newline at end of file
diff --git a/examples/platform/silabs/efr32/wf200/efr_spi.c b/examples/platform/silabs/efr32/wf200/efr_spi.c
index 8e3c24ef90e8f9..b95f77a6e4be7d 100644
--- a/examples/platform/silabs/efr32/wf200/efr_spi.c
+++ b/examples/platform/silabs/efr32/wf200/efr_spi.c
@@ -53,6 +53,7 @@
 extern SPIDRV_Handle_t sl_spidrv_exp_handle;
 #define SL_SPIDRV_HANDLE sl_spidrv_exp_handle
 #elif defined(EFR32MG24)
+#include "sl_spidrv_eusart_exp_config.h"
 #include "spi_multiplex.h"
 #else
 #error "Unknown platform"
@@ -379,6 +380,26 @@ void sl_wfx_host_gpio_init(void)
 }
 
 #if defined(EFR32MG24)
+
+void SPIDRV_ReInit(uint32_t baudrate)
+{
+    if (USART_BaudrateGet(MY_USART) == baudrate)
+    {
+        // USART synced to baudrate already
+        return;
+    }
+    // USART is used in MG24 + WF200 combination
+    USART_InitSync_TypeDef usartInit = USART_INITSYNC_DEFAULT;
+    usartInit.msbf                   = true;
+    usartInit.clockMode              = usartClockMode0;
+    usartInit.baudrate               = baudrate;
+    uint32_t databits                = SL_SPIDRV_FRAME_LENGTH - 4U + _USART_FRAME_DATABITS_FOUR;
+    usartInit.databits               = (USART_Databits_TypeDef) databits;
+    usartInit.autoCsEnable           = true;
+
+    USART_InitSync(MY_USART, &usartInit);
+}
+
 void sl_wfx_host_spiflash_cs_assert(void)
 {
     GPIO_PinOutClear(SL_MX25_FLASH_SHUTDOWN_CS_PORT, SL_MX25_FLASH_SHUTDOWN_CS_PIN);