diff --git a/arch/arm/dts/imx8mp-data-modul-edm-sbc-u-boot.dtsi b/arch/arm/dts/imx8mp-data-modul-edm-sbc-u-boot.dtsi
index a2b5976..cb6ea35 100644
--- a/arch/arm/dts/imx8mp-data-modul-edm-sbc-u-boot.dtsi
+++ b/arch/arm/dts/imx8mp-data-modul-edm-sbc-u-boot.dtsi
@@ -51,12 +51,6 @@
 	};
 };
 
-&eqos {
-	/delete-property/ assigned-clocks;
-	/delete-property/ assigned-clock-parents;
-	/delete-property/ assigned-clock-rates;
-};
-
 &gpio1 {
 	bootph-pre-ram;
 };
diff --git a/board/data_modul/imx8mm_edm_sbc/imx8mm_data_modul_edm_sbc.c b/board/data_modul/imx8mm_edm_sbc/imx8mm_data_modul_edm_sbc.c
index ff89333..bfb2bdd 100644
--- a/board/data_modul/imx8mm_edm_sbc/imx8mm_data_modul_edm_sbc.c
+++ b/board/data_modul/imx8mm_edm_sbc/imx8mm_data_modul_edm_sbc.c
@@ -5,9 +5,11 @@
 
 #include <common.h>
 #include <asm/arch/clock.h>
+#include <asm/arch/imx8mm_pins.h>
 #include <asm/io.h>
 #include <dm.h>
 #include <dm/device-internal.h>
+#include <linux/bitfield.h>
 #include <malloc.h>
 #include <spl.h>
 
@@ -34,3 +36,43 @@
 
 	return 0;
 }
+
+int fdtdec_board_setup(const void *fdt_blob)
+{
+	const void __iomem *mux = (void __iomem *)IOMUXC_BASE_ADDR +
+		FIELD_GET(MUX_CTRL_OFS_MASK, IMX8MM_PAD_ENET_MDC_GPIO1_IO16);
+	const char *phy_compat = "ethernet-phy-ieee802.3-c22";
+	bool is_bcmphy;
+	int phy_node;
+	int ret;
+
+	/* Do nothing if not i.MX8MM eDM SBC */
+	ret = fdt_node_check_compatible(fdt_blob, 0, "dmo,imx8mm-data-modul-edm-sbc");
+	if (ret)
+		return 0;
+
+	/*
+	 * If GPIO1_16 RGMII_MDC is HIGH, then R530 is populated.
+	 * R530 is populated only on boards with AR8031 PHY.
+	 *
+	 * If GPIO1_16 RGMII_MDC is LOW, then the in-SoM pull down
+	 * is the dominant pull resistor. This is the case on boards
+	 * with BCM54213PE PHY.
+	 */
+	setbits_le32(mux, IOMUX_CONFIG_SION);
+	is_bcmphy = !(readl(GPIO1_BASE_ADDR) & BIT(16));
+	clrbits_le32(mux, IOMUX_CONFIG_SION);
+
+	phy_node = fdt_node_offset_by_compatible(fdt_blob, -1, phy_compat);
+	if (phy_node < 0)
+		return 0;
+
+	/*
+	 * Update PHY MDC address in control DT based on the populated
+	 * PHY type. AR8031 is at address 0, BCM54213PE is at address 1.
+	 */
+	fdt_setprop_inplace_u32((void *)fdt_blob, phy_node,
+				"reg", is_bcmphy ? 1 : 0);
+
+	return 0;
+}
diff --git a/board/data_modul/imx8mp_edm_sbc/imx8mp_data_modul_edm_sbc.c b/board/data_modul/imx8mp_edm_sbc/imx8mp_data_modul_edm_sbc.c
index 9fbbbc1..f0f373a 100644
--- a/board/data_modul/imx8mp_edm_sbc/imx8mp_data_modul_edm_sbc.c
+++ b/board/data_modul/imx8mp_edm_sbc/imx8mp_data_modul_edm_sbc.c
@@ -5,11 +5,13 @@
 
 #include <common.h>
 #include <asm/arch/clock.h>
+#include <asm/arch/imx8mp_pins.h>
 #include <asm/io.h>
 #include <dm.h>
 #include <dm/device-internal.h>
 #include <env.h>
 #include <env_internal.h>
+#include <linux/bitfield.h>
 #include <malloc.h>
 #include <net.h>
 #include <spl.h>
@@ -65,3 +67,51 @@
 
 	return 0;
 }
+
+int fdtdec_board_setup(const void *fdt_blob)
+{
+	const void __iomem *mux = (void __iomem *)IOMUXC_BASE_ADDR +
+		FIELD_GET(MUX_CTRL_OFS_MASK, MX8MP_PAD_ENET_MDC__ENET_QOS_MDC);
+	const char *phy_compat = "ethernet-phy-ieee802.3-c22";
+	bool is_bcmphy;
+	int phy_node;
+	int ret;
+
+	/* Do nothing if not i.MX8MP eDM SBC */
+	ret = fdt_node_check_compatible(fdt_blob, 0, "dmo,imx8mp-data-modul-edm-sbc");
+	if (ret)
+		return 0;
+
+	/*
+	 * If GPIO1_16 RGMII_MDC is HIGH, then R390 is populated.
+	 * R390 is populated only on boards with AR8031 PHY.
+	 *
+	 * If GPIO1_16 RGMII_MDC is LOW, then the in-SoM pull down
+	 * is the dominant pull resistor. This is the case on boards
+	 * with BCM54213PE PHY.
+	 */
+	setbits_le32(mux, IOMUX_CONFIG_SION);
+	is_bcmphy = !(readl(GPIO1_BASE_ADDR) & BIT(16));
+	clrbits_le32(mux, IOMUX_CONFIG_SION);
+
+	phy_node = fdt_node_offset_by_compatible(fdt_blob, -1, phy_compat);
+	if (phy_node < 0)
+		return 0;
+
+	/*
+	 * Update PHY MDC address in control DT based on the populated
+	 * PHY type. AR8031 is at address 0, BCM54213PE is at address 1.
+	 */
+	fdt_setprop_inplace_u32((void *)fdt_blob, phy_node,
+				"reg", is_bcmphy ? 1 : 0);
+
+	/* Apply the same modification to EQoS PHY */
+	phy_node = fdt_node_offset_by_compatible(fdt_blob, phy_node, phy_compat);
+	if (phy_node < 0)
+		return 0;
+
+	fdt_setprop_inplace_u32((void *)fdt_blob, phy_node,
+				"reg", is_bcmphy ? 1 : 0);
+
+	return 0;
+}
diff --git a/configs/imx8mm_data_modul_edm_sbc_defconfig b/configs/imx8mm_data_modul_edm_sbc_defconfig
index b16800d..7e9c48e 100644
--- a/configs/imx8mm_data_modul_edm_sbc_defconfig
+++ b/configs/imx8mm_data_modul_edm_sbc_defconfig
@@ -195,6 +195,7 @@
 CONFIG_SPI_FLASH_MTD=y
 CONFIG_PHYLIB=y
 CONFIG_PHY_ATHEROS=y
+CONFIG_PHY_BROADCOM=y
 CONFIG_DM_MDIO=y
 CONFIG_DM_ETH_PHY=y
 CONFIG_FEC_MXC=y
diff --git a/configs/imx8mp_data_modul_edm_sbc_defconfig b/configs/imx8mp_data_modul_edm_sbc_defconfig
index b6a3730..ba4730a 100644
--- a/configs/imx8mp_data_modul_edm_sbc_defconfig
+++ b/configs/imx8mp_data_modul_edm_sbc_defconfig
@@ -207,6 +207,7 @@
 CONFIG_SPI_FLASH_WINBOND=y
 CONFIG_SPI_FLASH_MTD=y
 CONFIG_PHY_ATHEROS=y
+CONFIG_PHY_BROADCOM=y
 CONFIG_PHY_MICREL=y
 CONFIG_PHY_MICREL_KSZ90X1=y
 CONFIG_DM_MDIO=y