diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 02802386b894..699b71e7f7ec 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -163,6 +163,7 @@ config MACH_SAMA5_DT
 	bool "Atmel SAMA5 Evaluation Kits with device-tree support"
 	depends on SOC_SAMA5
 	select USE_OF
+	select PHYLIB if NETDEVICES
 	help
 	  Select this if you want to experiment device-tree with
 	  an Atmel Evaluation Kit.
diff --git a/arch/arm/mach-at91/board-dt-sama5.c b/arch/arm/mach-at91/board-dt-sama5.c
index 705305e62bbc..ad95f6a23a28 100644
--- a/arch/arm/mach-at91/board-dt-sama5.c
+++ b/arch/arm/mach-at91/board-dt-sama5.c
@@ -62,7 +62,8 @@ static int ksz9021rn_phy_fixup(struct phy_device *phy)
 
 static void __init sama5_dt_device_init(void)
 {
-	if (of_machine_is_compatible("atmel,sama5d3xcm"))
+	if (of_machine_is_compatible("atmel,sama5d3xcm") &&
+	    IS_ENABLED(CONFIG_PHYLIB))
 		phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
 			ksz9021rn_phy_fixup);
 
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index e2f4bdd146d6..942dc00f1227 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -80,7 +80,7 @@ void __init at91_init_sram(int bank, unsigned long base, unsigned int length)
 
 	desc->pfn = __phys_to_pfn(base);
 	desc->length = length;
-	desc->type = MT_DEVICE;
+	desc->type = MT_MEMORY_NONCACHED;
 
 	pr_info("AT91: sram at 0x%lx of 0x%x mapped at 0x%lx\n",
 		base, length, desc->virtual);