diff --git a/include/image.mk b/include/image.mk
index 12654931cd..88d80e72e5 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -472,7 +472,8 @@ endef
 ifndef IB
 define Device/Build/initramfs
   $(call Device/Export,$(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE),$(1))
-  $$(_TARGET): $$(if $$(KERNEL_INITRAMFS),$(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE))
+  $$(_TARGET): $$(if $$(KERNEL_INITRAMFS),$(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE) \
+	  $$(if $$(CONFIG_JSON_OVERVIEW_IMAGE_INFO), $(BUILD_DIR)/json_info_files/$$(KERNEL_INITRAMFS_IMAGE).json,))
 
   $(KDIR)/$$(KERNEL_INITRAMFS_NAME):: image_prepare
   $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE)
@@ -481,6 +482,38 @@ define Device/Build/initramfs
   $(KDIR)/tmp/$$(KERNEL_INITRAMFS_IMAGE): $(KDIR)/$$(KERNEL_INITRAMFS_NAME) $(CURDIR)/Makefile $$(KERNEL_DEPENDS) image_prepare
 	@rm -f $$@
 	$$(call concat_cmd,$$(KERNEL_INITRAMFS))
+
+  $(call Device/Export,$(BUILD_DIR)/json_info_files/$$(KERNEL_INITRAMFS_IMAGE).json,$(1))
+
+  $(BUILD_DIR)/json_info_files/$$(KERNEL_INITRAMFS_IMAGE).json: $(BIN_DIR)/$$(KERNEL_INITRAMFS_IMAGE)
+	@mkdir -p $$(shell dirname $$@)
+	DEVICE_ID="$(1)" \
+	BIN_DIR="$(BIN_DIR)" \
+	SOURCE_DATE_EPOCH=$(SOURCE_DATE_EPOCH) \
+	IMAGE_NAME="$$(notdir $$^)" \
+	IMAGE_TYPE="kernel" \
+	IMAGE_FILESYSTEM="initramfs" \
+	IMAGE_PREFIX="$$(IMAGE_PREFIX)" \
+	DEVICE_VENDOR="$$(DEVICE_VENDOR)" \
+	DEVICE_MODEL="$$(DEVICE_MODEL)" \
+	DEVICE_VARIANT="$$(DEVICE_VARIANT)" \
+	DEVICE_ALT0_VENDOR="$$(DEVICE_ALT0_VENDOR)" \
+	DEVICE_ALT0_MODEL="$$(DEVICE_ALT0_MODEL)" \
+	DEVICE_ALT0_VARIANT="$$(DEVICE_ALT0_VARIANT)" \
+	DEVICE_ALT1_VENDOR="$$(DEVICE_ALT1_VENDOR)" \
+	DEVICE_ALT1_MODEL="$$(DEVICE_ALT1_MODEL)" \
+	DEVICE_ALT1_VARIANT="$$(DEVICE_ALT1_VARIANT)" \
+	DEVICE_ALT2_VENDOR="$$(DEVICE_ALT2_VENDOR)" \
+	DEVICE_ALT2_MODEL="$$(DEVICE_ALT2_MODEL)" \
+	DEVICE_ALT2_VARIANT="$$(DEVICE_ALT2_VARIANT)" \
+	DEVICE_TITLE="$$(DEVICE_TITLE)" \
+	DEVICE_PACKAGES="$$(DEVICE_PACKAGES)" \
+	TARGET="$(BOARD)" \
+	SUBTARGET="$(if $(SUBTARGET),$(SUBTARGET),generic)" \
+	VERSION_NUMBER="$(VERSION_NUMBER)" \
+	VERSION_CODE="$(VERSION_CODE)" \
+	SUPPORTED_DEVICES="$$(SUPPORTED_DEVICES)" \
+	$(TOPDIR)/scripts/json_add_image_info.py $$@
 endef
 endif
 
diff --git a/package/base-files/files/bin/config_generate b/package/base-files/files/bin/config_generate
index 5b17555da8..e41a40e0e9 100755
--- a/package/base-files/files/bin/config_generate
+++ b/package/base-files/files/bin/config_generate
@@ -40,7 +40,7 @@ generate_static_network() {
 	uci -q batch <<-EOF
 		delete network.loopback
 		set network.loopback='interface'
-		set network.loopback.ifname='lo'
+		set network.loopback.device='lo'
 		set network.loopback.proto='static'
 		set network.loopback.ipaddr='127.0.0.1'
 		set network.loopback.netmask='255.0.0.0'
@@ -91,36 +91,45 @@ generate_static_network() {
 
 addr_offset=2
 generate_network() {
-	local ports ifname macaddr protocol type ipaddr netmask vlan
+	local ports device macaddr protocol type ipaddr netmask vlan
 	local bridge=$2
 
 	json_select network
 		json_select "$1"
+			json_get_vars device macaddr protocol ipaddr netmask vlan
 			json_get_values ports ports
-			json_get_vars ifname macaddr protocol ipaddr netmask vlan
 		json_select ..
 	json_select ..
 
-	[ -n "$ifname" -o -n "$ports" ] || return
+	[ -n "$device" -o -n "$ports" ] || return
 
 	# Force bridge for "lan" as it may have other devices (e.g. wireless)
 	# bridged
 	[ "$1" = "lan" -a -z "$ports" ] && {
-		ports="$ifname"
+		ports="$device"
 	}
 
-	[ -n "$ports" ] && {
-		type="bridge"
-		ifname="$ports"
+	[ -n "$ports" -a -z "$bridge" ] && {
+		uci -q batch <<-EOF
+			add network device
+			set network.@device[-1].name='br-$1'
+			set network.@device[-1].type='bridge'
+			set network.@device[-1].macaddr='$macaddr'
+		EOF
+		for port in $ports; do uci add_list network.@device[-1].ports="$port"; done
+		device=br-$1
+		type=
+		macaddr=""
 	}
 
 	[ -n "$bridge" ] && {
+		[ -z "$ports" ] && ports="$device"
 		if [ -z "$vlan" ]; then
 			bridge_vlan_id=$((bridge_vlan_id + 1))
 			vlan=$bridge_vlan_id
 		fi
-		generate_bridge_vlan $1 $bridge "$ifname" $vlan
-		ifname=$bridge.$vlan
+		generate_bridge_vlan $1 $bridge "$ports" $vlan
+		device=$bridge.$vlan
 		type=""
 	}
 
@@ -128,12 +137,12 @@ generate_network() {
 		delete network.$1
 		set network.$1='interface'
 		set network.$1.type='$type'
-		set network.$1.ifname='$ifname'
+		set network.$1.device='$device'
 		set network.$1.proto='none'
 	EOF
 
 	if [ -n "$macaddr" ]; then
-		for name in $ifname; do
+		for name in $device; do
 			uci -q batch <<-EOF
 				delete network.$1_${name/./_}_dev
 				set network.$1_${name/./_}_dev='device'
@@ -163,14 +172,14 @@ generate_network() {
 
 		dhcp)
 			# fixup IPv6 slave interface if parent is a bridge
-			[ "$type" = "bridge" ] && ifname="br-$1"
+			[ "$type" = "bridge" ] && device="br-$1"
 
 			uci set network.$1.proto='dhcp'
 			[ -e /proc/sys/net/ipv6 ] && {
 				uci -q batch <<-EOF
 					delete network.${1}6
 					set network.${1}6='interface'
-					set network.${1}6.ifname='$ifname'
+					set network.${1}6.device='$device'
 					set network.${1}6.proto='dhcpv6'
 				EOF
 			}
@@ -187,7 +196,7 @@ generate_network() {
 					set network.$1.ipv6='1'
 					delete network.${1}6
 					set network.${1}6='interface'
-					set network.${1}6.ifname='@${1}'
+					set network.${1}6.device='@${1}'
 					set network.${1}6.proto='dhcpv6'
 				EOF
 			}
diff --git a/package/base-files/files/lib/functions/uci-defaults.sh b/package/base-files/files/lib/functions/uci-defaults.sh
index 407a9c710f..02882f43ca 100644
--- a/package/base-files/files/lib/functions/uci-defaults.sh
+++ b/package/base-files/files/lib/functions/uci-defaults.sh
@@ -39,7 +39,7 @@ ucidef_set_interface() {
 
 		[ -n "$opt" -a -n "$val" ] || break
 
-		[ "$opt" = "ifname" -a "$val" != "${val/ //}" ] && {
+		[ "$opt" = "device" -a "$val" != "${val/ //}" ] && {
 			json_select_array "ports"
 			for e in $val; do json_add_string "" "$e"; done
 			json_close_array
@@ -79,11 +79,11 @@ ucidef_set_compat_version() {
 }
 
 ucidef_set_interface_lan() {
-	ucidef_set_interface "lan" ifname "$1" protocol "${2:-static}"
+	ucidef_set_interface "lan" device "$1" protocol "${2:-static}"
 }
 
 ucidef_set_interface_wan() {
-	ucidef_set_interface "wan" ifname "$1" protocol "${2:-dhcp}"
+	ucidef_set_interface "wan" device "$1" protocol "${2:-dhcp}"
 }
 
 ucidef_set_interfaces_lan_wan() {
@@ -201,14 +201,14 @@ _ucidef_finish_switch_roles() {
 
 			json_select_object "$role"
 				# attach previous interfaces (for multi-switch devices)
-				json_get_var devices ifname
+				json_get_var devices device
 				if ! list_contains devices "$device"; then
 					devices="${devices:+$devices }$device"
 				fi
 			json_select ..
 		json_select ..
 
-		ucidef_set_interface "$role" ifname "$devices"
+		ucidef_set_interface "$role" device "$devices"
 	done
 }
 
diff --git a/package/utils/busybox/Makefile b/package/utils/busybox/Makefile
index 475a154fa3..7ac042e9f7 100644
--- a/package/utils/busybox/Makefile
+++ b/package/utils/busybox/Makefile
@@ -1,15 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
 #
-# Copyright (C) 2006-2020 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
+# Copyright (C) 2006-2021 OpenWrt.org
 
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=busybox
 PKG_VERSION:=1.33.1
-PKG_RELEASE:=1
+PKG_RELEASE:=$(AUTORELEASE)
 PKG_FLAGS:=essential
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
@@ -84,10 +81,6 @@ endef
 Package/busybox-selinux/conffiles = $(Package/busybox/conffiles)
 endif
 
-# don't create a version string containing the actual timestamp
-export KCONFIG_NOTIMESTAMP=1
-
-
 ifndef CONFIG_USE_MUSL
 LDLIBS:=m crypt
 endif
diff --git a/package/utils/busybox/patches/530-use-SOURCE_DATE_EPOCH-for-timestamp-if-available.patch b/package/utils/busybox/patches/530-use-SOURCE_DATE_EPOCH-for-timestamp-if-available.patch
new file mode 100644
index 0000000000..af473622ed
--- /dev/null
+++ b/package/utils/busybox/patches/530-use-SOURCE_DATE_EPOCH-for-timestamp-if-available.patch
@@ -0,0 +1,80 @@
+From 59f773ee81a8945321f4aa20abc5e9577e6483e4 Mon Sep 17 00:00:00 2001
+From: Paul Spooren <mail@aparcar.org>
+Date: Thu, 13 May 2021 11:25:34 +0200
+Subject: [PATCH] use SOURCE_DATE_EPOCH for timestamp if available
+
+The SOURCE_DATE_EPOCH is an effort of the Reproducible Builds
+organization to make timestamps/build dates in compiled tools
+deterministic over several repetitive builds.
+
+Busybox shows by default the build date timestamp which changes whenever
+compiled. To have a reasonable accurate build date while staying
+reproducible, it's possible to use the *date of last source
+modification* rather than the current time and date.
+
+Further information on SOURCE_DATE_EPOCH are available online [1].
+
+This patch modifies `confdata.c` so that the content of the
+SOURCE_DATE_EPOCH env variable is used as timestamp.
+
+To be independent of different timezones between builds, whenever
+SOURCE_DATE_EPOCH is defined the GMT time is used.
+
+[1]: https://reproducible-builds.org/docs/source-date-epoch/
+
+Signed-off-by: Paul Spooren <mail@aparcar.org>
+---
+ scripts/kconfig/confdata.c | 17 ++++++++++++++---
+ 1 file changed, 14 insertions(+), 3 deletions(-)
+
+diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
+index b05b96e45..73c25e3a8 100644
+--- a/scripts/kconfig/confdata.c
++++ b/scripts/kconfig/confdata.c
+@@ -342,6 +342,8 @@ int conf_write(const char *name)
+ 	time_t now;
+ 	int use_timestamp = 1;
+ 	char *env;
++	char *source_date_epoch;
++	struct tm *build_time;
+ 
+ 	dirname[0] = 0;
+ 	if (name && name[0]) {
+@@ -378,7 +380,16 @@ int conf_write(const char *name)
+ 	}
+ 	sym = sym_lookup("KERNELVERSION", 0);
+ 	sym_calc_value(sym);
+-	time(&now);
++
++	source_date_epoch = getenv("SOURCE_DATE_EPOCH");
++	if (source_date_epoch && *source_date_epoch) {
++		now = strtoull(source_date_epoch, NULL, 10);
++		build_time = gmtime(&now);
++	} else {
++		time(&now);
++		build_time = localtime(&now);
++	}
++
+ 	env = getenv("KCONFIG_NOTIMESTAMP");
+ 	if (env && *env)
+ 		use_timestamp = 0;
+@@ -398,14 +409,14 @@ int conf_write(const char *name)
+ 		if (use_timestamp) {
+ 			size_t ret = \
+ 				strftime(buf, sizeof(buf), "#define AUTOCONF_TIMESTAMP "
+-					"\"%Y-%m-%d %H:%M:%S %Z\"\n", localtime(&now));
++					"\"%Y-%m-%d %H:%M:%S %Z\"\n", build_time);
+ 			/* if user has Factory timezone or some other odd install, the
+ 			 * %Z above will overflow the string leaving us with undefined
+ 			 * results ... so let's try again without the timezone.
+ 			 */
+ 			if (ret == 0)
+ 				strftime(buf, sizeof(buf), "#define AUTOCONF_TIMESTAMP "
+-					"\"%Y-%m-%d %H:%M:%S\"\n", localtime(&now));
++					"\"%Y-%m-%d %H:%M:%S\"\n", build_time);
+ 		} else { /* bbox */
+ 			strcpy(buf, "#define AUTOCONF_TIMESTAMP \"\"\n");
+ 		}
+-- 
+2.30.2
+
diff --git a/target/linux/arc770/image/Makefile b/target/linux/arc770/image/Makefile
index 172eb06744..4cb9364ef3 100644
--- a/target/linux/arc770/image/Makefile
+++ b/target/linux/arc770/image/Makefile
@@ -24,6 +24,8 @@ endef
 
 define Device/nsim
 	$(call Device/vmlinux)
+	DEVICE_VENDOR := Synopsys
+	DEVICE_MODEL := nSIM
 	DEVICE_PROFILE := nsim
 	DEVICE_DTS := nsim_700
 endef
diff --git a/target/linux/archs38/image/Makefile b/target/linux/archs38/image/Makefile
index e8cfb63ce1..1d0beca27f 100644
--- a/target/linux/archs38/image/Makefile
+++ b/target/linux/archs38/image/Makefile
@@ -24,6 +24,8 @@ endef
 
 define Device/nsim_hs
 	$(call Device/vmlinux)
+	DEVICE_VENDOR := Synopsys
+	DEVICE_MODEL := nSIM HS
 	DEVICE_PROFILE := nsim_hs
 	DEVICE_DTS := nsim_hs_idu
 endef
diff --git a/target/linux/gemini/base-files/etc/board.d/02_network b/target/linux/gemini/base-files/etc/board.d/02_network
index f371956a66..9e80fee758 100755
--- a/target/linux/gemini/base-files/etc/board.d/02_network
+++ b/target/linux/gemini/base-files/etc/board.d/02_network
@@ -7,17 +7,17 @@ board_config_update
 case "$(board_name)" in
 dlink,dir-685)
 	# These are all connected to eth0 thru RTL8366RB
-	ucidef_set_interface "eth" ifname "eth0" protocol "none"
+	ucidef_set_interface "eth" device "eth0" protocol "none"
 	ucidef_set_interfaces_lan_wan "lan0 lan1 lan2 lan3" "wan"
 	;;
 itian,sq201)
 	# These are all connected to eth1 thru VSC7395
-	ucidef_set_interface "eth" ifname "eth1" protocol "none"
+	ucidef_set_interface "eth" device "eth1" protocol "none"
 	ucidef_set_interfaces_lan_wan "lan1 lan2 lan3 lan4" "eth0"
 	;;
 storlink,gemini324)
 	# These are all connected to eth1 thru VSC7385
-	ucidef_set_interface "eth" ifname "eth1" protocol "none"
+	ucidef_set_interface "eth" device "eth1" protocol "none"
 	ucidef_set_interfaces_lan_wan "lan1 lan2 lan3 lan4" "eth0"
 	;;
 esac
diff --git a/target/linux/ipq806x/base-files/etc/init.d/cpufreq b/target/linux/ipq806x/base-files/etc/init.d/cpufreq
new file mode 100755
index 0000000000..19278902ed
--- /dev/null
+++ b/target/linux/ipq806x/base-files/etc/init.d/cpufreq
@@ -0,0 +1,17 @@
+#!/bin/sh /etc/rc.common
+
+START=15
+
+boot() {
+  local governor
+
+  governor=$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_governor)
+
+  if [ "$governor" = "ondemand" ]; then
+    # Effective only with ondemand
+    echo 600000 > /sys/devices/system/cpu/cpufreq/policy0/scaling_min_freq
+    echo 600000 > /sys/devices/system/cpu/cpufreq/policy1/scaling_min_freq
+    echo 10 > /sys/devices/system/cpu/cpufreq/ondemand/sampling_down_factor
+    echo 50 > /sys/devices/system/cpu/cpufreq/ondemand/up_threshold
+  fi
+}
diff --git a/target/linux/realtek/base-files/etc/board.d/02_network b/target/linux/realtek/base-files/etc/board.d/02_network
index 2568fd2e0e..45ab84ee9e 100755
--- a/target/linux/realtek/base-files/etc/board.d/02_network
+++ b/target/linux/realtek/base-files/etc/board.d/02_network
@@ -24,7 +24,7 @@ for lan in /sys/class/net/lan*; do
 done
 ucidef_set_bridge_device switch
 ucidef_set_interface_wan "$lan_list"
-ucidef_set_interface "lan" ifname "lan1:t" protocol "static" vlan 100
+ucidef_set_interface "lan" device "lan1:t" protocol "static" vlan 100
 
 lan_mac=""
 wan_mac=""