kirkwood: switch from swconfig to dsa

This patch removes support for swconfig and switches to dsa driver.

swconfig and switch drivers are removed. DSA driver is enabled and
configuration is adjusted.

In kirkwood only two devices have switches: Linksys EA3500 and EA4500.

WAN MAC configuration in 02_network is required because otherwise WAN
would have the same MAC address as lan interfaces. In swconfig solution
the WAN address was assigned in u-Boot to eth1. Now, as eth1 is disabled
and wan is part of the switch, we have to set it manually.

Compile tested: EA3500, EA4500
Run tested: EA4500

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
[minor commit title/message adjustments, remove swconfig package
for devices]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/kirkwood/base-files/etc/board.d/02_network

@@ -26,8 +26,8 @@ case "$board" in
 	;;
 "linksys,audi"|\
 "linksys,viper")
-	ucidef_add_switch "switch0" \
-		"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "5@eth0" "6@eth1"
+	ucidef_set_interfaces_lan_wan "ethernet1 ethernet2 ethernet3 ethernet4" "internet"
+	ucidef_set_interface_macaddr "wan" $( mtd_get_mac_ascii u_env eth1addr )
 	;;
 "zyxel,nsa310b"|\
 "zyxel,nsa325")

target/linux/kirkwood/config-5.4

@@ -245,10 +245,17 @@ CONFIG_MVEBU_MBUS=y
 CONFIG_MVMDIO=y
 # CONFIG_MVNETA is not set
 # CONFIG_MVPP2 is not set
-CONFIG_MVSW61XX_PHY=y
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NEED_KUSER_HELPERS=y
 CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NET_DEVLINK=y
+CONFIG_NET_DSA=y
+CONFIG_NET_DSA_MV88E6XXX=y
+CONFIG_NET_DSA_MV88E6XXX_GLOBAL2=y
+# CONFIG_NET_DSA_MV88E6XXX_PTP is not set
+CONFIG_NET_DSA_TAG_DSA=y
+CONFIG_NET_DSA_TAG_EDSA=y
+CONFIG_NET_SWITCHDEV=y
 CONFIG_NLS=y
 CONFIG_NVMEM=y
 # CONFIG_NVMEM_REBOOT_MODE is not set
@@ -276,6 +283,7 @@ CONFIG_PCI_MVEBU=y
 CONFIG_PERF_USE_VMALLOC=y
 CONFIG_PGTABLE_LEVELS=2
 CONFIG_PHYLIB=y
+CONFIG_PHYLINK=y
 # CONFIG_PHY_MVEBU_A3700_UTMI is not set
 # CONFIG_PHY_MVEBU_A38X_COMPHY is not set
 CONFIG_PHY_MVEBU_SATA=y
@@ -317,7 +325,6 @@ CONFIG_SPLIT_PTLOCK_CPUS=999999
 CONFIG_SRAM=y
 CONFIG_SRAM_EXEC=y
 CONFIG_SRCU=y
-CONFIG_SWCONFIG=y
 CONFIG_SWPHY=y
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
 CONFIG_THERMAL=y

target/linux/kirkwood/files-5.4/arch/arm/boot/dts/kirkwood-linksys-audi.dts

@@ -66,17 +66,6 @@
 			default-state = "on";
 		};
 	};
-
-	mvsw61xx {
-		compatible = "marvell,88e6171";
-		status = "okay";
-		reg = <0x10>;
-
-		mii-bus = <&mdio>;
-		cpu-port-0 = <5>;
-		cpu-port-1 = <6>;
-		is-indirect;
-	};
 };
 
 &pinctrl {
@@ -96,6 +85,57 @@
 	};
 };
 
+&mdio {
+	status = "okay";
+
+	switch@10 {
+		compatible = "marvell,mv88e6085";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <16>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				label = "ethernet1";
+			};
+
+			port@1 {
+				reg = <1>;
+				label = "ethernet2";
+			};
+
+			port@2 {
+				reg = <2>;
+				label = "ethernet3";
+			};
+
+			port@3 {
+				reg = <3>;
+				label = "ethernet4";
+			};
+
+			port@4 {
+				reg = <4>;
+				label = "internet";
+			};
+
+			port@5 {
+				reg = <5>;
+				label = "cpu";
+				ethernet = <&eth0port>;
+				fixed-link {
+					speed = <1000>;
+					full-duplex;
+				};
+			};
+		};
+	};
+};
+
 &nand {
 	status = "okay";
 
@@ -188,15 +228,10 @@
 };
 
 /* eth1 is connected to the switch at port 6. However DSA only supports a
- * single CPU port. Upstream uses DSA so they disable this port to avoid confusion.
+ * single CPU port. This port is disabled to avoid confusion.
  */
 &eth1 {
-	status = "okay";
-
-	ethernet1-port@0 {
-		speed = <1000>;
-		duplex = <1>;
-	};
+	status = "disabled";
 };
 
 /* There is no battery on the board, so the RTC does not keep

target/linux/kirkwood/image/Makefile

@@ -82,7 +82,7 @@ TARGET_DEVICES += iom_ix2-200
 define Device/linksys_audi
   DEVICE_VENDOR := Linksys
   DEVICE_MODEL := EA3500 (Audi)
-  DEVICE_PACKAGES := kmod-mwl8k swconfig wpad-basic kmod-gpio-button-hotplug
+  DEVICE_PACKAGES := kmod-mwl8k wpad-basic kmod-gpio-button-hotplug
   PAGESIZE := 512
   SUBPAGESIZE := 256
   BLOCKSIZE := 16k
@@ -97,7 +97,7 @@ TARGET_DEVICES += linksys_audi
 define Device/linksys_viper
   DEVICE_VENDOR := Linksys
   DEVICE_MODEL := E4200v2 / EA4500 (Viper)
-  DEVICE_PACKAGES := kmod-mwl8k swconfig wpad-basic kmod-gpio-button-hotplug
+  DEVICE_PACKAGES := kmod-mwl8k wpad-basic kmod-gpio-button-hotplug
   KERNEL_SIZE := 2688k
   KERNEL_IN_UBI :=
   UBINIZE_OPTS := -E 5

target/linux/kirkwood/patches-5.4/105-ea4500.patch

@@ -23,25 +23,7 @@
  		};
  
  		white-pulse {
-@@ -66,6 +71,17 @@
- 			gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
- 		};
- 	};
-+
-+	mvsw61xx@10 {
-+		compatible = "marvell,88e6171";
-+		status = "okay";
-+		reg = <0x10>;
-+
-+		mii-bus = <&mdio>;
-+		cpu-port-0 = <5>;
-+		cpu-port-1 = <6>;
-+		is-indirect;
-+	};
- };
- 
- &pinctrl {
-@@ -114,22 +130,22 @@
+@@ -114,22 +119,22 @@
  		};
  
  		partition@200000 {
@@ -68,28 +50,3 @@
  			reg = <0x1EA0000 0x1760000>;
  		};
  
-@@ -162,6 +178,7 @@
- 	status = "okay";
- 
- 	switch@10 {
-+		status = "disabled";
- 		compatible = "marvell,mv88e6085";
- 		#address-cells = <1>;
- 		#size-cells = <0>;
-@@ -225,10 +242,14 @@
- };
- 
- /* eth1 is connected to the switch at port 6. However DSA only supports a
-- * single CPU port. So leave this port disabled to avoid confusion.
-+ * single CPU port. Upstream uses DSA so they disable this port to avoid confusion.
-  */
- &eth1 {
--	status = "disabled";
-+	status = "okay";
-+	ethernet1-port@0 {
-+		speed = <1000>;
-+		duplex = <1>;
-+	};
- };
- 
- /* There is no battery on the board, so the RTC does not keep

target/linux/kirkwood/profiles/00-default.mk

@@ -7,7 +7,7 @@
 
 define Profile/Default
 	NAME:=Default Profile
-	PACKAGES:=kmod-mwl8k swconfig wpad-basic
+	PACKAGES:=kmod-mwl8k wpad-basic
 	PRIORITY:=1
 endef