mvebu fixes for 5.9 (part 1)

- Allow to use correct MAC address for particular DSA slaves /
   ethernet ports on Espressobin (Armada 3720)
 
 - Remove incorrect check in ll_get_coherency_base() used for Armada
   370/XP SoCs.
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Merge tag 'mvebu-fixes-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/fixes

mvebu fixes for 5.9 (part 1)

- Allow to use correct MAC address for particular DSA slaves /
  ethernet ports on Espressobin (Armada 3720)

- Remove incorrect check in ll_get_coherency_base() used for Armada
  370/XP SoCs.

* tag 'mvebu-fixes-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu:
  ARM: mvebu: drop pointless check for coherency_base
  arm64: dts: marvell: espressobin: Add ethernet switch aliases

Link: https://lore.kernel.org/r/87y2kkesj5.fsf@BL-laptop
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-mvebu/coherency_ll.S

@@ -35,13 +35,8 @@ ENTRY(ll_get_coherency_base)
 
 	/*
 	 * MMU is disabled, use the physical address of the coherency
-	 * base address. However, if the coherency fabric isn't mapped
-	 * (i.e its virtual address is zero), it means coherency is
-	 * not enabled, so we return 0.
+	 * base address, (or 0x0 if the coherency fabric is not mapped)
 	 */
-	ldr	r1, =coherency_base
-	cmp	r1, #0
-	beq	2f
 	adr	r1, 3f
 	ldr	r3, [r1]
 	ldr	r1, [r1, r3]

arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7-emmc.dts

@@ -20,17 +20,23 @@
 	compatible = "globalscale,espressobin-v7-emmc", "globalscale,espressobin-v7",
 		     "globalscale,espressobin", "marvell,armada3720",
 		     "marvell,armada3710";
+
+	aliases {
+		/* ethernet1 is wan port */
+		ethernet1 = &switch0port3;
+		ethernet3 = &switch0port1;
+	};
 };
 
 &switch0 {
 	ports {
-		port@1 {
+		switch0port1: port@1 {
 			reg = <1>;
 			label = "lan1";
 			phy-handle = <&switch0phy0>;
 		};
 
-		port@3 {
+		switch0port3: port@3 {
 			reg = <3>;
 			label = "wan";
 			phy-handle = <&switch0phy2>;

arch/arm64/boot/dts/marvell/armada-3720-espressobin-v7.dts

@@ -19,17 +19,23 @@
 	model = "Globalscale Marvell ESPRESSOBin Board V7";
 	compatible = "globalscale,espressobin-v7", "globalscale,espressobin",
 		     "marvell,armada3720", "marvell,armada3710";
+
+	aliases {
+		/* ethernet1 is wan port */
+		ethernet1 = &switch0port3;
+		ethernet3 = &switch0port1;
+	};
 };
 
 &switch0 {
 	ports {
-		port@1 {
+		switch0port1: port@1 {
 			reg = <1>;
 			label = "lan1";
 			phy-handle = <&switch0phy0>;
 		};
 
-		port@3 {
+		switch0port3: port@3 {
 			reg = <3>;
 			label = "wan";
 			phy-handle = <&switch0phy2>;

arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi

@@ -13,6 +13,10 @@
 / {
 	aliases {
 		ethernet0 = &eth0;
+		/* for dsa slave device */
+		ethernet1 = &switch0port1;
+		ethernet2 = &switch0port2;
+		ethernet3 = &switch0port3;
 		serial0 = &uart0;
 		serial1 = &uart1;
 	};
@@ -120,7 +124,7 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 
-			port@0 {
+			switch0port0: port@0 {
 				reg = <0>;
 				label = "cpu";
 				ethernet = <&eth0>;
@@ -131,19 +135,19 @@
 				};
 			};
 
-			port@1 {
+			switch0port1: port@1 {
 				reg = <1>;
 				label = "wan";
 				phy-handle = <&switch0phy0>;
 			};
 
-			port@2 {
+			switch0port2: port@2 {
 				reg = <2>;
 				label = "lan0";
 				phy-handle = <&switch0phy1>;
 			};
 
-			port@3 {
+			switch0port3: port@3 {
 				reg = <3>;
 				label = "lan1";
 				phy-handle = <&switch0phy2>;