diff --git a/boards/arm/efr32mg_sltb004a/board.c b/boards/arm/efr32mg_sltb004a/board.c
index aff8fbd5706..cff8bc4ad6a 100644
--- a/boards/arm/efr32mg_sltb004a/board.c
+++ b/boards/arm/efr32mg_sltb004a/board.c
@@ -5,30 +5,55 @@
  */
 
 #include <init.h>
-#include "board.h"
 #include <drivers/gpio.h>
 #include <sys/printk.h>
 
-static int efr32mg_sltb004a_init(const struct device *dev)
+struct supply_cfg {
+	const struct device *gpio;
+	gpio_pin_t pin;
+	gpio_dt_flags_t flags;
+};
+
+static int enable_supply(const struct supply_cfg *cfg)
 {
-	const struct device *cur_dev;
+	int rv = -ENODEV;
 
-	ARG_UNUSED(dev);
-
-#ifdef CONFIG_CCS811
-	/* Enable the CCS811 power */
-	cur_dev = device_get_binding(CCS811_PWR_ENABLE_GPIO_NAME);
-	if (!cur_dev) {
-		printk("CCS811 power gpio port was not found!\n");
-		return -ENODEV;
+	if (device_is_ready(cfg->gpio)) {
+		gpio_pin_configure(cfg->gpio, cfg->pin,
+				   GPIO_OUTPUT | cfg->flags);
+		gpio_pin_set(cfg->gpio, cfg->pin, 1);
+		rv = 0;
 	}
 
-	gpio_pin_configure(cur_dev, CCS811_PWR_ENABLE_GPIO_PIN, GPIO_OUTPUT);
-	gpio_pin_set(cur_dev, CCS811_PWR_ENABLE_GPIO_PIN, 1);
+	return rv;
+}
 
-#endif /* CONFIG_CCS811 */
+static int efr32mg_sltb004a_init(const struct device *dev)
+{
+	struct supply_cfg cfg;
+	int rc = 0;
 
-	return 0;
+	ARG_UNUSED(dev);
+	(void)cfg;
+
+#define CCS811 DT_NODELABEL(ccs811)
+
+#if DT_NODE_HAS_STATUS(CCS811, okay)
+	DEVICE_DT_DECLARE(DT_GPIO_CTLR(CCS811, supply_gpios));
+	cfg = (struct supply_cfg){
+		.gpio = DEVICE_DT_GET(DT_GPIO_CTLR(CCS811, supply_gpios)),
+		.pin = DT_GPIO_PIN(CCS811, supply_gpios),
+		.flags = DT_GPIO_FLAGS(CCS811, supply_gpios),
+	};
+
+	/* Enable the CCS811 power */
+	rc = enable_supply(&cfg);
+	if (rc < 0) {
+		printk("CCS811 supply not enabled: %d\n", rc);
+	}
+#endif
+
+	return rc;
 }
 
 /* needs to be done after GPIO driver init */
diff --git a/boards/arm/efr32mg_sltb004a/board.h b/boards/arm/efr32mg_sltb004a/board.h
deleted file mode 100644
index 8b98abdb417..00000000000
--- a/boards/arm/efr32mg_sltb004a/board.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * Copyright (c) 2020 Christian Taedcke
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#ifndef __INC_BOARD_H
-#define __INC_BOARD_H
-
-/* CCS811 specific pins */
-#ifdef CONFIG_CCS811
-#define CCS811_PWR_ENABLE_GPIO_NAME	"GPIO_F"
-#define CCS811_PWR_ENABLE_GPIO_PIN	14
-#endif /* CONFIG_CCS811 */
-
-#endif /* __INC_BOARD_H */
diff --git a/boards/arm/efr32mg_sltb004a/efr32mg_sltb004a.dts b/boards/arm/efr32mg_sltb004a/efr32mg_sltb004a.dts
index 9ae63b0e18a..e116b69bba6 100644
--- a/boards/arm/efr32mg_sltb004a/efr32mg_sltb004a.dts
+++ b/boards/arm/efr32mg_sltb004a/efr32mg_sltb004a.dts
@@ -110,6 +110,7 @@
 };
 
 &i2c1 {
+	/* This set selects for CCS811_I2C supporting CCS811 */
 	location-sda = <GECKO_LOCATION(6) GECKO_PORT_B GECKO_PIN(6)>;
 	location-scl = <GECKO_LOCATION(6) GECKO_PORT_B GECKO_PIN(7)>;
 
@@ -117,9 +118,22 @@
 		compatible = "ams,ccs811";
 		reg = <0x5a>;
 		label = "CCS811";
+		supply-gpios = <&gpiof 14 GPIO_ACTIVE_HIGH>;
 		irq-gpios = <&gpiof 13 GPIO_ACTIVE_LOW>;
 		wake-gpios = <&gpiof 15 GPIO_ACTIVE_LOW>;
 	};
+
+	/* This set selects for ENV_I2C supporting Si7021, Si11330, BMP280 */
+	/*
+	location-sda = <GECKO_LOCATION(17) GECKO_PORT_C GECKO_PIN(4)>;
+	location-scl = <GECKO_LOCATION(17) GECKO_PORT_C GECKO_PIN(5)>;
+	*/
+
+	/* This set selects for HALL_I2C supporting Si7210 */
+	/*
+	location-sda = <GECKO_LOCATION(8) GECKO_PORT_B GECKO_PIN(8)>;
+	location-scl = <GECKO_LOCATION(8) GECKO_PORT_B GECKO_PIN(9)>;
+	*/
 };
 
 &rtcc0 {