mamba/venom: increase kernel partition size

target/linux/mvebu/cortexa9/base-files/etc/uci-defaults/05_fix-compat-version

@@ -0,0 +1,11 @@
+. /lib/functions.sh
+
+case "$(board_name)" in
+	linksys,wrt1900ac-v1|\
+        linksys,wrt32x)
+		uci set system.@system[0].compat_version="2.0"
+		uci commit system
+		;;
+esac
+
+exit 0

target/linux/mvebu/files/arch/arm/boot/dts/armada-385-linksys-venom.dts

@@ -157,9 +157,9 @@
 			reg = <0x900000 0x7b00000>;	/* 123MB */
 		};
 
-		partition@c00000 {
+		partition@f00000 {
 			label = "rootfs1";
-			reg = <0xc00000 0x7800000>;	/* 120MB */
+			reg = <0xf00000 0x7500000>;	/* 117MB */
 		};
 
 		/* kernel2 overlaps with rootfs2 by design */
@@ -168,9 +168,9 @@
 			reg = <0x8400000 0x7b00000>;	/* 123MB */
 		};
 
-		partition@8700000 {
+		partition@8a00000 {
 			label = "rootfs2";
-			reg = <0x8700000 0x7800000>;	/* 120MB */
+			reg = <0x8a00000 0x7500000>;	/* 117MB */
 		};
 
 		/* last MB is for the BBT, not writable */

target/linux/mvebu/image/cortexa9.mk

@@ -8,6 +8,12 @@ define Device/dsa-migration
   DEVICE_COMPAT_MESSAGE := Config cannot be migrated from swconfig to DSA
 endef
 
+define Device/kernel-size-migration
+  DEVICE_COMPAT_VERSION := 2.0
+  DEVICE_COMPAT_MESSAGE := Partition design has changed compared to older versions (up to 19.07) due to kernel size restrictions. \
+	Upgrade via sysupgrade mechanism is not possible, so new installation via factory style image is required.
+endef
+
 define Device/buffalo_ls421de
   $(Device/NAND-128K)
   DEVICE_VENDOR := Buffalo
@@ -108,16 +114,15 @@ TARGET_DEVICES += linksys_wrt1900acs
 
 define Device/linksys_wrt1900ac-v1
   $(call Device/linksys)
-  $(Device/dsa-migration)
+  $(Device/kernel-size-migration)
   DEVICE_MODEL := WRT1900AC
   DEVICE_VARIANT := v1
   DEVICE_ALT0_VENDOR := Linksys
   DEVICE_ALT0_MODEL := Mamba
   DEVICE_DTS := armada-xp-linksys-mamba
   DEVICE_PACKAGES += mwlwifi-firmware-88w8864
-  KERNEL_SIZE := 3072k
+  KERNEL_SIZE := 4096k
   SUPPORTED_DEVICES += armada-xp-linksys-mamba linksys,mamba
-  DEFAULT := n
 endef
 TARGET_DEVICES += linksys_wrt1900ac-v1
 
@@ -148,16 +153,15 @@ TARGET_DEVICES += linksys_wrt3200acm
 
 define Device/linksys_wrt32x
   $(call Device/linksys)
-  $(Device/dsa-migration)
+  $(Device/kernel-size-migration)
   DEVICE_MODEL := WRT32X
   DEVICE_ALT0_VENDOR := Linksys
   DEVICE_ALT0_MODEL := Venom
   DEVICE_DTS := armada-385-linksys-venom
   DEVICE_PACKAGES += kmod-btmrvl kmod-mwifiex-sdio mwlwifi-firmware-88w8964
-  KERNEL_SIZE := 3072k
+  KERNEL_SIZE := 6144k
   KERNEL := kernel-bin | append-dtb
   SUPPORTED_DEVICES += armada-385-linksys-venom linksys,venom
-  DEFAULT := n
 endef
 TARGET_DEVICES += linksys_wrt32x
 

target/linux/mvebu/patches-5.10/316-armada-xp-linksys-mamba-resize-kernel.patch

@@ -0,0 +1,37 @@
+From 258233f00bcd013050efee00c5d9128ef8cd62dd Mon Sep 17 00:00:00 2001
+From: Tad <tad@spotco.us>
+Date: Fri, 5 Feb 2021 22:32:11 -0500
+Subject: [PATCH] ARM: dts: armada-xp-linksys-mamba: Increase kernel
+ partition to 4MB
+
+Signed-off-by: Tad Davanzo <tad@spotco.us>
+---
+ arch/arm/boot/dts/armada-xp-linksys-mamba.dts | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
++++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
+@@ -456,9 +456,9 @@
+ 				reg = <0xa00000 0x2800000>;  /* 40MB */
+ 			};
+
+-			partition@d00000 {
++			partition@e00000 {
+ 				label = "rootfs1";
+-				reg = <0xd00000 0x2500000>;  /* 37MB */
++				reg = <0xe00000 0x2400000>;  /* 36MB */
+ 			};
+
+ 			/* kernel2 overlaps with rootfs2 by design */
+@@ -467,9 +467,9 @@
+ 				reg = <0x3200000 0x2800000>; /* 40MB */
+ 			};
+
+-			partition@3500000 {
++			partition@3600000 {
+ 				label = "rootfs2";
+-				reg = <0x3500000 0x2500000>; /* 37MB */
++				reg = <0x3600000 0x2400000>; /* 36MB */
+ 			};
+
+ 			/*

target/linux/mvebu/patches-5.4/318-armada-xp-linksys-mamba-resize-kernel.patch

@@ -0,0 +1,37 @@
+From 258233f00bcd013050efee00c5d9128ef8cd62dd Mon Sep 17 00:00:00 2001
+From: Tad <tad@spotco.us>
+Date: Fri, 5 Feb 2021 22:32:11 -0500
+Subject: [PATCH] ARM: dts: armada-xp-linksys-mamba: Increase kernel
+ partition to 4MB
+
+Signed-off-by: Tad Davanzo <tad@spotco.us>
+---
+ arch/arm/boot/dts/armada-xp-linksys-mamba.dts | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
++++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
+@@ -456,9 +456,9 @@
+ 				reg = <0xa00000 0x2800000>;  /* 40MB */
+ 			};
+
+-			partition@d00000 {
++			partition@e00000 {
+ 				label = "rootfs1";
+-				reg = <0xd00000 0x2500000>;  /* 37MB */
++				reg = <0xe00000 0x2400000>;  /* 36MB */
+ 			};
+
+ 			/* kernel2 overlaps with rootfs2 by design */
+@@ -467,9 +467,9 @@
+ 				reg = <0x3200000 0x2800000>; /* 40MB */
+ 			};
+
+-			partition@3500000 {
++			partition@3600000 {
+ 				label = "rootfs2";
+-				reg = <0x3500000 0x2500000>; /* 37MB */
++				reg = <0x3600000 0x2400000>; /* 36MB */
+ 			};
+
+ 			/*