diff --git a/boards/arm/lpcxpresso55s69/pinmux.c b/boards/arm/lpcxpresso55s69/pinmux.c
index 37fc154d9518..939f99ee952f 100644
--- a/boards/arm/lpcxpresso55s69/pinmux.c
+++ b/boards/arm/lpcxpresso55s69/pinmux.c
@@ -125,8 +125,12 @@ static int lpcxpresso_55s69_pinmux_init(struct device *dev)
 				  IOCON_PIO_SLEW_STANDARD |
 				  IOCON_PIO_OPENDRAIN_DI);
 
+	uint32_t pio_func = IOCON_PIO_FUNC5; /* Flexcomm controlled CS*/
+#if DT_NODE_HAS_PROP(DT_NODELABEL(hs_lspi), cs_gpios)
+	pio_func = IOCON_PIO_FUNC0; /* GPIO controlled CS*/
+#endif
 	/* PORT1 PIN1 is configured as HS_SPI_SSEL1 */
-	pinmux_pin_set(port1,  1, IOCON_PIO_FUNC5 |
+	pinmux_pin_set(port1,  1, pio_func |
 				  IOCON_PIO_MODE_PULLUP |
 				  IOCON_PIO_INV_DI |
 				  IOCON_PIO_DIGITAL_EN |
diff --git a/drivers/ethernet/eth_enc28j60.c b/drivers/ethernet/eth_enc28j60.c
index 947f3585b5fd..2a6981fb255a 100644
--- a/drivers/ethernet/eth_enc28j60.c
+++ b/drivers/ethernet/eth_enc28j60.c
@@ -382,18 +382,18 @@ static void eth_enc28j60_init_mac(struct device *dev)
 	}
 
 	/* Configure MAC address */
-	eth_enc28j60_set_bank(dev, ENC28J60_REG_MAADR0);
-	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR0,
+	eth_enc28j60_set_bank(dev, ENC28J60_REG_MAADR1);
+	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR6,
 			       context->mac_address[5]);
-	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR1,
+	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR5,
 			       context->mac_address[4]);
-	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR2,
+	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR4,
 			       context->mac_address[3]);
 	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR3,
 			       context->mac_address[2]);
-	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR4,
+	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR2,
 			       context->mac_address[1]);
-	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR5,
+	eth_enc28j60_write_reg(dev, ENC28J60_REG_MAADR1,
 			       context->mac_address[0]);
 }
 
@@ -510,6 +510,7 @@ static int eth_enc28j60_rx(struct device *dev, uint16_t *vlan_tag)
 	struct eth_enc28j60_runtime *context = dev->driver_data;
 	uint16_t lengthfr;
 	uint8_t counter;
+	uint8_t dummy[4];
 
 	/* Errata 6. The Receive Packet Pending Interrupt Flag (EIR.PKTIF)
 	 * does not reliably/accurately report the status of pending packet.
@@ -600,13 +601,13 @@ static int eth_enc28j60_rx(struct device *dev, uint16_t *vlan_tag)
 		} while (frm_len > 0);
 
 		/* Let's pop the useless CRC */
-		eth_enc28j60_read_mem(dev, NULL, 4);
+		eth_enc28j60_read_mem(dev, dummy, 4);
 
 		/* Pops one padding byte from spi circular buffer
 		 * introduced by the device when the frame length is odd
 		 */
 		if (lengthfr & 0x01) {
-			eth_enc28j60_read_mem(dev, NULL, 1);
+			eth_enc28j60_read_mem(dev, dummy, 1);
 		}
 
 #if defined(CONFIG_NET_VLAN)
diff --git a/drivers/ethernet/eth_enc28j60_priv.h b/drivers/ethernet/eth_enc28j60_priv.h
index 14a73eeea44f..11828c0a1c62 100644
--- a/drivers/ethernet/eth_enc28j60_priv.h
+++ b/drivers/ethernet/eth_enc28j60_priv.h
@@ -99,12 +99,12 @@
 #define ENC28J60_REG_MIRDH    0x2219
 
 /* Bank 3 Registers */
-#define ENC28J60_REG_MAADR1   0x1300
-#define ENC28J60_REG_MAADR0   0x1301
+#define ENC28J60_REG_MAADR5   0x1300
+#define ENC28J60_REG_MAADR6   0x1301
 #define ENC28J60_REG_MAADR3   0x1302
-#define ENC28J60_REG_MAADR2   0x1303
-#define ENC28J60_REG_MAADR5   0x1304
-#define ENC28J60_REG_MAADR4   0x1305
+#define ENC28J60_REG_MAADR4   0x1303
+#define ENC28J60_REG_MAADR1   0x1304
+#define ENC28J60_REG_MAADR2   0x1305
 #define ENC28J60_REG_EBSTSD   0x0306
 #define ENC28J60_REG_EBSTCON  0x0307
 #define ENC28J60_REG_EBSTCSL  0x0308
diff --git a/dts/arm/nxp/nxp_lpc55S6x_common.dtsi b/dts/arm/nxp/nxp_lpc55S6x_common.dtsi
index 985be1bc5d7a..37a1eaaa6243 100644
--- a/dts/arm/nxp/nxp_lpc55S6x_common.dtsi
+++ b/dts/arm/nxp/nxp_lpc55S6x_common.dtsi
@@ -192,6 +192,8 @@
 
 	hs_lspi: spi@9f000 {
 		compatible = "nxp,lpc-spi";
+		cs-gpios = <&gpio0 20 0>,<&gpio1 1 0>,<&gpio1 12 0>,
+			<&gpio1 26 0>;
 		reg = <0x9f000 0x1000>;
 		interrupts = <59 0>;
 		label = "HS_LSPI";