kernel/include/trace/events/fsi_master_ast_cf.h, branch linux-6.18.y Hosts the 0x221E linux distro kernel. https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-6.18.y 2018-07-23T05:22:52Z fsi: master-ast-cf: Add new FSI master using Aspeed ColdFire 2018-07-23T05:22:52Z Benjamin Herrenschmidt benh@kernel.crashing.org 2018-06-11T23:55:04Z urn:sha1:6a794a27daca9c5a39de13c03b0748bb2d4a7a70 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 coprocessor and its source code can be found at https://github.com/ozbenh/cf-fsi and is system specific. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>