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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2018-06-12 09:55:04 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2018-07-23 15:22:52 +1000 |
| commit | 6a794a27daca9c5a39de13c03b0748bb2d4a7a70 (patch) | |
| tree | a1d3f7354c7c142fdaea5fc721f538fbd756b69d /drivers/spi/spi-fsl-lpspi.c | |
| parent | 2be5263c5df45bbd5ad49ea8c394aca6e709d204 (diff) | |
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 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>
Diffstat (limited to 'drivers/spi/spi-fsl-lpspi.c')
0 files changed, 0 insertions, 0 deletions