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apm821xx: use lzma compression for the initramfs images

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The MR24's u-boot takes it sweet time decompressing the
LZMA-packed initramfs image. A user reported that
compared to the old gzip method in v2: it "takes a ton
longer to decompress like 4\x the old boot time for
decompression".

This patch also fixes a issue with the WNDR4700's initramfs
image getting to big and causing the following u-boot crash
during the decompression:

"Uncompressing Multi-File Image ... Error: inflate() returned -5
out-of-mem or overwrite error - must RESET board to recover"

This patch fixes both issues by reverting the MR24's initramfs
compression method back to gzip. And choosing to compress the
initramfs within the initramfs image as LZMA by default.

Cc: chrisrblake93@gmail.com
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This commit is contained in:
Christian Lamparter 2016-07-23 14:20:52 +02:00 committed by Felix Fietkau
parent 04a6984319
commit 08257a4053
2 changed files with 2 additions and 1 deletions
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1
config/Config-images.in
View file

@ -16,6 +16,7 @@ menu "Target Images"
prompt "Compression"
default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ar71xx
default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ramips
default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_apm821xx
default TARGET_INITRAMFS_COMPRESSION_NONE
depends on TARGET_ROOTFS_INITRAMFS
help

2
target/linux/apm821xx/image/Makefile
View file

@ -75,7 +75,7 @@ define Device/mr24
KERNEL_SIZE := 2048k
IMAGE_SIZE := 8191k
KERNEL := kernel-bin | lzma | uImage lzma | MerakiAdd-dtb | MerakiNAND
KERNEL_INITRAMFS := copy-file $(KDIR)/vmlinux | lzma | uImage lzma | MerakiAdd-dtb | pad-to 2047k | MerakiAdd-initramfs | MerakiNAND
KERNEL_INITRAMFS := copy-file $(KDIR)/vmlinux | gzip | uImage gzip | MerakiAdd-dtb | pad-to 2047k | MerakiAdd-initramfs | MerakiNAND
IMAGE/sysupgrade.tar := sysupgrade-nand
endef
TARGET_DEVICES += mr24