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| author | Tad Davanzo <tad@spotco.us> | 2021-02-05 22:38:03 -0500 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2021-03-19 15:30:01 +0100 |
| commit | 10415d5e7016b69dc71c5f1b03e8e17b586f8edd (patch) | |
| tree | d1535ae8a763c67ef142c1e41b3972289ce35c4d | |
| parent | 72885e9608d9c0fa06abce6bdb6dd054c2116eb7 (diff) | |
| download | upstream-10415d5e7016b69dc71c5f1b03e8e17b586f8edd.tar.gz upstream-10415d5e7016b69dc71c5f1b03e8e17b586f8edd.tar.bz2 upstream-10415d5e7016b69dc71c5f1b03e8e17b586f8edd.zip | |
mvebu: mamba resize kernel to 4MB
mamba has a 3MB kernel partition as specified by the DTS.
3MB is not sufficient for building with many kernel modules or newer
kernel versions.
mamba uboot however as set from factory will load up to 4MB.
This can be observed by looking a uboot log:
NAND read: device 0 offset 0xa00000, size 0x400000
4194304 bytes read: OK
and from uboot environment variables:
$ fw_printenv | grep "pri_kern_size";
pri_kern_size=0x400000
Resize the root partitions from 37MB to 36MB to let kernel expand
into it another 1MB.
And set kernel target size to 4MB.
Lastly add a compatibility version message: kernel-size-migration.
And set it on mamba to prevent sysupgrading without first reinstalling from
a factory image.
Signed-off-by: Tad Davanzo <tad@spotco.us>
4 files changed, 92 insertions, 2 deletions
diff --git a/target/linux/mvebu/cortexa9/base-files/etc/uci-defaults/05_fix-compat-version b/target/linux/mvebu/cortexa9/base-files/etc/uci-defaults/05_fix-compat-version new file mode 100644 index 0000000000..70e0e9ef95 --- /dev/null +++ b/target/linux/mvebu/cortexa9/base-files/etc/uci-defaults/05_fix-compat-version @@ -0,0 +1,10 @@ +. /lib/functions.sh + +case "$(board_name)" in + linksys,wrt1900ac-v1) + uci set system.@system[0].compat_version="2.0" + uci commit system + ;; +esac + +exit 0 diff --git a/target/linux/mvebu/image/cortexa9.mk b/target/linux/mvebu/image/cortexa9.mk index a7ebc30a71..90c0dfa827 100644 --- a/target/linux/mvebu/image/cortexa9.mk +++ b/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 @@ -108,14 +114,14 @@ 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 diff --git a/target/linux/mvebu/patches-5.10/316-armada-xp-linksys-mamba-resize-kernel.patch b/target/linux/mvebu/patches-5.10/316-armada-xp-linksys-mamba-resize-kernel.patch new file mode 100644 index 0000000000..f1fddceff4 --- /dev/null +++ b/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 */ + }; + + /* diff --git a/target/linux/mvebu/patches-5.4/318-armada-xp-linksys-mamba-resize-kernel.patch b/target/linux/mvebu/patches-5.4/318-armada-xp-linksys-mamba-resize-kernel.patch new file mode 100644 index 0000000000..f1fddceff4 --- /dev/null +++ b/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 */ + }; + + /* |