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authorDaniel Golle <daniel@makrotopia.org>2021-02-25 14:51:41 +0000
committerDaniel Golle <daniel@makrotopia.org>2021-02-25 16:39:55 +0000
commit198385b69de14494e282035a2293fc253f839864 (patch)
tree4887a76ff325c6524b8216cca20260989533c132 /target
parent45c0e0ee419f678cf995127cef38093b974727d6 (diff)
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mediatek: switch to use seperate ramdisk for initramfs images
MediaTek targets always use U-Boot's modern uImage.FIT format which allows bundling several blobs into a single file including hashes, descriptions and more. In fact, we are already using that to bundle the Flattened Device Tree blob with the kernel on this and many other targets. In the same fashion, we can now make use of the newly introduced support for building seperate ramdisk to uImage.FIT with a dedicated initrd blob checked and loaded by U-Boot instead of embedding the cpio archive into the kernel itself. This allows for having larger ramdisks, choosing ramdisk compression independently of kernel compression (while only kernel is decompressed by the bootloader) and for more easily replacing or modifying the filesystem contained in an initramfs image. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'target')
-rw-r--r--target/linux/mediatek/Makefile2
-rw-r--r--target/linux/mediatek/image/Makefile2
2 files changed, 2 insertions, 2 deletions
diff --git a/target/linux/mediatek/Makefile b/target/linux/mediatek/Makefile
index c8ab5e01e6..ceea84f8a8 100644
--- a/target/linux/mediatek/Makefile
+++ b/target/linux/mediatek/Makefile
@@ -6,7 +6,7 @@ ARCH:=arm
BOARD:=mediatek
BOARDNAME:=MediaTek Ralink ARM
SUBTARGETS:=mt7622 mt7623 mt7629
-FEATURES:=squashfs nand ramdisk fpu
+FEATURES:=squashfs nand seperate_ramdisk fpu
KERNEL_PATCHVER:=5.4
KERNEL_TESTING_PATCHVER:=5.4
diff --git a/target/linux/mediatek/image/Makefile b/target/linux/mediatek/image/Makefile
index 45e83cece5..7aa7a7285c 100644
--- a/target/linux/mediatek/image/Makefile
+++ b/target/linux/mediatek/image/Makefile
@@ -23,7 +23,7 @@ define Device/Default
KERNEL = kernel-bin | lzma | \
fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb
KERNEL_INITRAMFS = kernel-bin | lzma | \
- fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb
+ fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb with-initrd
FILESYSTEMS := squashfs
DEVICE_DTS_DIR := $(DTS_DIR)
IMAGES := sysupgrade.bin