Re: [PATCH 12/14] fsi: master-ast-cf: Add new FSI master using Aspeed ColdFire

Hi Ben, On 27 June 2018 at 08:56, Benjamin Herrenschmidt wrote: > The Aspeed AST2x00 can contain a ColdFire v1 coprocessor which > is currently unused on OpenPower systems. > > This adds an alternative to the fsi-master-gpio driver that > uses that coprocessor instead of bit banging from the ARM

[PATCH 12/14] fsi: master-ast-cf: Add new FSI master using Aspeed ColdFire

The Aspeed AST2x00 can contain a ColdFire v1 coprocessor which is currently unused on OpenPower systems. This adds an alternative to the fsi-master-gpio driver that uses that coprocessor instead of bit banging from the ARM core itself. The end result is about 4 times faster. The firmware for the