question about ARM11MP cpu architecture identification

Russell King - ARM Linux linux at arm.linux.org.uk
Tue Jan 12 11:34:03 EST 2010


On Tue, Jan 12, 2010 at 06:21:50PM +0200, saeed bishara wrote:
> Hi,
>     The ARM11MP (rev r2p0) cpu architecture is ARMv6, and according to
> the http://infocenter.arm.com, its Main ID register is 0x410FB024, and
> the MMFR[3:0] is 3. but it looks to me that the cpu_architecture()
> will identify it as ARMv7, and if the kernel was configured with
> CPU_V7 only, then the lookup_processor_type() function also will
> identify it as ARMv7. Am I missing something here?

Welcome to the wonderful world of *unprintable*.  The age of being
able to reliably tell what type of CPU you are running on has sadly
well and truely passed into history.

I'm afraid it's now a hit-and-miss affair.



More information about the linux-arm-kernel mailing list