diff --git a/boards/arm/quick_feather/CMakeLists.txt b/boards/arm/quick_feather/CMakeLists.txt
deleted file mode 100644
index 77aee051c0c72ca..000000000000000
--- a/boards/arm/quick_feather/CMakeLists.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-# Copyright (c) 2020 Antmicro <www.antmicro.com>
-# SPDX-License-Identifier: Apache-2.0
-
-zephyr_library_sources(board.c)
-zephyr_include_directories(.)
diff --git a/boards/arm/quick_feather/board.c b/boards/arm/quick_feather/board.c
deleted file mode 100644
index cf89c208ced0dd0..000000000000000
--- a/boards/arm/quick_feather/board.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright (c) 2020 Antmicro <www.antmicro.com>
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include <zephyr/init.h>
-#include <soc.h>
-#include <board.h>
-
-static int eos_s3_board_init(void)
-{
-
-	/* IO MUX setup for UART */
-	eos_s3_io_mux(UART_TX_PAD, UART_TX_PAD_CFG);
-	eos_s3_io_mux(UART_RX_PAD, UART_RX_PAD_CFG);
-
-	IO_MUX->UART_rxd_SEL = UART_RX_SEL;
-
-	return 0;
-}
-
-SYS_INIT(eos_s3_board_init, PRE_KERNEL_1, CONFIG_BOARD_INIT_PRIORITY);
diff --git a/boards/arm/quick_feather/board.h b/boards/arm/quick_feather/board.h
deleted file mode 100644
index 857a6edd037270c..000000000000000
--- a/boards/arm/quick_feather/board.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Copyright (c) 2020 Antmicro <www.antmicro.com>
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#ifndef __INC_BOARD_H
-#define __INC_BOARD_H
-
-#include <soc_pinmap.h>
-
-#define UART_TX_PAD		44
-#define UART_TX_PAD_CFG		UART_TXD_PAD44
-#define UART_RX_PAD		45
-#define UART_RX_PAD_CFG		UART_RXD_PAD45
-
-#define UART_RX_SEL		UART_RXD_SEL_PAD45
-
-#endif /* __INC_BOARD_H */
diff --git a/boards/arm/quick_feather/quick_feather.dts b/boards/arm/quick_feather/quick_feather.dts
index 9bde6c938c3490d..2dc8053255a04ac 100644
--- a/boards/arm/quick_feather/quick_feather.dts
+++ b/boards/arm/quick_feather/quick_feather.dts
@@ -6,6 +6,7 @@
 
 /dts-v1/;
 #include <quicklogic/quicklogic_eos_s3.dtsi>
+#include <zephyr/dt-bindings/pinctrl/quicklogic-eos-s3-pinctrl.h>
 
 / {
 	model = "QuickLogic Quick Feather board";
@@ -56,6 +57,17 @@
 	};
 };
 
+&pinctrl {
+	uart_rx_default: uart_rx_default {
+		pinmux = <UART_RX_PAD45>;
+		input-enable;
+	};
+	uart_tx_default: uart_tx_default {
+		pinmux = <UART_TX_PAD44>;
+		output-enable;
+	};
+};
+
 &cpu0 {
 	clock-frequency = <61440000>;
 };
@@ -67,4 +79,6 @@
 &uart0 {
 	status = "okay";
 	current-speed = <115200>;
+	pinctrl-0 = <&uart_rx_default &uart_tx_default>;
+	pinctrl-names = "default";
 };