[U-Boot] Squashfs filesystem support

Hi,

I'm looking for Squashfs support in U-Boot. My web searches have come across talk about it, and at least one old set of patches, but nothing usable. I'm wondering if Squashfs support exists that just hasn't been merged. Or is there not enough interest? In that case, has something superseded it when it comes to read-only, compressed filesystems?

Thanks, Frank