airoha: Introduce support for Airoha AN7583 SoC

Introduce initial support for Airoha AN7583 SoC and add all the required
patch for basic functionality of the SoC.

Airoha AN7583 is based on Airoha EN7581 SoC with some major changes on
the PHY handling and Serdes. It can be see as a lower spec of EN7581
with modern and simplified implementations.

All the patch are sent upstream and are pending revision. Support for
PCIe and USB will come later as soon as DT structure is accepted
upstream.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

Author: Ansuel

target/linux/airoha/Makefile

@@ -3,7 +3,7 @@ include $(TOPDIR)/rules.mk
 ARCH:=arm
 BOARD:=airoha
 BOARDNAME:=Airoha ARM
-SUBTARGETS:=en7523 an7581
+SUBTARGETS:=en7523 an7581 an7583
 FEATURES:=dt squashfs nand ramdisk gpio
 
 KERNEL_PATCHVER:=6.12

target/linux/airoha/an7581/config-6.12

@@ -213,6 +213,7 @@ CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
 CONFIG_MDIO_BUS=y
 CONFIG_MDIO_DEVICE=y
+# CONFIG_MDIO_AIROHA is not set
 CONFIG_MDIO_DEVRES=y
 # CONFIG_MEDIATEK_GE_SOC_PHY is not set
 # CONFIG_MEMCG is not set
@@ -289,6 +290,7 @@ CONFIG_PCI_DOMAINS=y
 CONFIG_PCI_DOMAINS_GENERIC=y
 CONFIG_PCI_MSI=y
 CONFIG_PCS_AIROHA_AN7581=y
+# CONFIG_PCS_AIROHA_AN7583 is not set
 CONFIG_PERF_EVENTS=y
 CONFIG_PER_VMA_LOCK=y
 CONFIG_PGTABLE_LEVELS=3

target/linux/airoha/an7583/base-files/etc/board.d/02_network

@@ -0,0 +1,28 @@
+#
+# Copyright (c) 2015 The Linux Foundation. All rights reserved.
+# Copyright (c) 2011-2015 OpenWrt.org
+#
+
+. /lib/functions/uci-defaults.sh
+. /lib/functions/system.sh
+
+an7583_setup_interfaces()
+{
+	local board="$1"
+
+	case "$board" in
+	airoha,an7583-evb)
+		ucidef_set_interface_lan "lan1 lan2 lan3 lan4 eth1"
+		;;
+	*)
+		echo "Unsupported hardware. Network interfaces not initialized"
+		;;
+	esac
+}
+
+board_config_update
+board=$(board_name)
+an7583_setup_interfaces $board
+board_config_flush
+
+exit 0