The rootfs is a squashfs image and my bootloader is loading it into some address in SDRAM. What parameters do I need to pass to the kernel so It can mount the rootfs from there? Squashfs support is built-in and it already works with
for booting from the flash.
EDIT: This is a MIPS based embedded device, using a custom bootloader. Normally, the bootloader extracts the compressed kernel from the flash into the SDRAM, and then kernel mounts /dev/mtdblock2 as the rootfs. I am trying to improve the bootloader so it can download an image to its RAM and boot without writing to the flash.
I cannot figure out how to make Linux mount a filesystem image in the RAM as the rootfs.