Problems compiling kernel2.2.12 for Mipsel

[peter lawford <plawford@hns.com>]

When I (cross)compile kernel 2.2.12 for little endian MIPS, I get the
error:

/usr/src/linux/include/asm/semaphore.h:89: #error "FIXME: down_trylock
doesn't support little endian machines yet."

Versions 2.2.13 and the development 2.3.22 are missing the MIPSEL code
as well.

Is it ok to use 2.2.12 on MIPS?  If not, what is the most recent working
kernel?