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| author | Lars Povlsen <lars.povlsen@microchip.com> | 2020-08-24 22:30:06 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-09-08 16:15:37 +0100 |
| commit | 53a09635ce56e3041fb3cbc7ceef8f5de28259a5 (patch) | |
| tree | 423c56b03232fe8bc36107474df5c72bd25ed7c3 /fs | |
| parent | bac70b54ecb53b3d5af862dd4fcbaaad8f34ed23 (diff) | |
spi: dw: Add Microchip Sparx5 support
This adds SPI support for the Sparx5 SoC, which is using the MMIO
Designware SPI controller.
The Sparx5 differs from the Ocelot version in these areas:
* The CS override is controlled by a new set of registers for
this purpose.
* The Sparx5 SPI controller has the RX sample delay register, and it
must be configured for the (SPI NAND) device on SPI2.
* The Sparx5 SPI controller has 2 different SPI bus interfaces on the
same controller (don't ask...). The "spi-mux" driver should be used
in conjunction with the SPI driver to select the appropriate bus.
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200824203010.2033-3-lars.povlsen@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions