diff --git a/cpu/esp32/periph/uart.c b/cpu/esp32/periph/uart.c
index a06f96abee..6e5d4d2522 100644
--- a/cpu/esp32/periph/uart.c
+++ b/cpu/esp32/periph/uart.c
@@ -50,8 +50,7 @@
 
 struct uart_hw_t {
     uart_dev_t* regs;       /* pointer to register data struct of the UART device */
-    uint8_t  pin_txd;       /* TxD pin */
-    uint8_t  pin_rxd;       /* RxD pin */
+    uint8_t  mod;           /* peripheral hardware module of the UART interface */
     bool     used;          /* indicates whether UART is used */
     uint32_t baudrate;      /* used baudrate */
     uart_data_bits_t data;  /* used data bits */
@@ -67,55 +66,38 @@ struct uart_hw_t {
 static struct uart_hw_t _uarts[] = {
     {
         .regs = &UART0,
-        .pin_txd = GPIO1,
-        .pin_rxd = GPIO3,
+        .mod = PERIPH_UART0_MODULE,
         .used = false,
         .baudrate = STDIO_UART_BAUDRATE,
         .data = UART_DATA_BITS_8,
         .stop = UART_STOP_BITS_1,
         .parity = UART_PARITY_NONE,
-        .mod = PERIPH_UART0_MODULE,
         .signal_txd = U0TXD_OUT_IDX,
         .signal_rxd = U0RXD_IN_IDX,
-        .baudrate = STDIO_UART_BAUDRATE,
-        .used = false,
         .int_src = ETS_UART0_INTR_SOURCE
     },
-    #if defined(UART1_TXD) && defined(UART1_RXD)
-    {   .regs = &UART1,
-        .pin_txd = UART1_TXD,
-        .pin_rxd = UART1_RXD,
-        .used = false,
-        .baudrate = STDIO_UART_BAUDRATE,
-        .data = UART_DATA_BITS_8,
-        .stop = UART_STOP_BITS_1,
-        .parity = UART_PARITY_NONE,
     {
         .regs = &UART1,
         .mod = PERIPH_UART1_MODULE,
-        .signal_txd = U1TXD_OUT_IDX,
-        .signal_rxd = U1RXD_IN_IDX,
-        .baudrate = STDIO_UART_BAUDRATE,
-        .used = false,
-        .int_src = ETS_UART1_INTR_SOURCE
-    },
-    #endif
-    #if defined(UART2_TXD) && defined(UART2_RXD)
-    {   .regs = &UART2,
-        .pin_txd = UART2_TXD,
-        .pin_rxd = UART2_RXD,
         .used = false,
         .baudrate = STDIO_UART_BAUDRATE,
         .data = UART_DATA_BITS_8,
         .stop = UART_STOP_BITS_1,
         .parity = UART_PARITY_NONE,
+        .signal_txd = U1TXD_OUT_IDX,
+        .signal_rxd = U1RXD_IN_IDX,
+        .int_src = ETS_UART1_INTR_SOURCE
+    },
     {
         .regs = &UART2,
         .mod = PERIPH_UART2_MODULE,
+        .used = false,
+        .baudrate = STDIO_UART_BAUDRATE,
+        .data = UART_DATA_BITS_8,
+        .stop = UART_STOP_BITS_1,
+        .parity = UART_PARITY_NONE,
         .signal_txd = U2TXD_OUT_IDX,
         .signal_rxd = U2RXD_IN_IDX,
-        .baudrate = STDIO_UART_BAUDRATE,
-        .used = false,
         .int_src = ETS_UART2_INTR_SOURCE
     }
 };