my device processor info displays:
"arm920T PXA27x".

My research found that:
AT91 - by Atmel, AT91RM9200 - ARM920T based -- has MMU;
XScale/PXA - by Marvell (formerly Intel) -- has MMU,
	*PXA27x - Bulverde family.

I found these:
http://sourceforge.net/projects/pxa27x-linux/ and http://www.embeddedrelated.com/usenet/embedded/show/87800-1.php

Information relevant to processor:
32-bit RISC processor ARM920T support both the ARMv5 and 16-bit Thumb instruction sets.

Cross-compilation toolchains produced by crosstool for this processor family have the prefix arm-9tdmi-linux-gnu

perhaps linux 2.6 might be the correct version to install on this processor.

linux kernel config for 2.6.29 on arm.http://kernel.xc.net/html/linux-2.6.29/arm/