RTEMS for ARM Cortex-M1 ?

[Cudmore, Alan P. (GSFC-5820)]

A project is looking at using RTEMS on an FPGA based ARM Cortex-M1 like
the one in the Microsemi ProAsic3L development kit:
http://www.microsemi.com/products/fpga-soc/design-resources/dev-kits/proasi
c3/cortex-m1-enabled-proasic3l-development-kit

Wikipedia says the Cortex-M1 is an ARMv6M architecture.
http://en.wikipedia.org/wiki/ARM_Cortex-M#Cortex-M1

I see that there is ARMv7M support in score, would a similar port be
needed for ARMv6M?

Is an ARMv6M close to anything in RTEMS now?

Thanks,
Alan