[PATCH 1/2] LEON3: use new mcpu=leon3v7 build flag

Sebastian Huber sebastian.huber at embedded-brains.de
Thu Dec 4 14:26:33 UTC 2014


On 04/12/14 13:10, Daniel Hellstrom wrote:
> The LEON3 BSP has been using mcpu=cypress which is a
> SPARCV7 that is compatible with SPARCv8 CPUs. This patch
> enables the relatively new LEON3 model and generates
> SPARCv7 compatible code. This shuold be comptabile with
> all single-core LEON3/4 systems. The LEON3 model is
> required for SMP to make GCC generate the CAS instruction.

Does this mean that the ERC32 is v8 compatible and the LEON3 in general 
only v7 + CAS?

-- 
Sebastian Huber, embedded brains GmbH

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