From 198385b69de14494e282035a2293fc253f839864 Mon Sep 17 00:00:00 2001 From: Daniel Golle <daniel@makrotopia.org> Date: Thu, 25 Feb 2021 14:51:41 +0000 Subject: [PATCH] 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> --- target/linux/mediatek/Makefile | 2 +- target/linux/mediatek/image/Makefile | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/target/linux/mediatek/Makefile b/target/linux/mediatek/Makefile index c8ab5e01e6d..ceea84f8a8b 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 45e83cece5e..7aa7a7285c3 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 -- GitLab