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3 Commits

Author SHA1 Message Date
Thierry Reding
a127e690b0 memory: tegra: Add support for the Tegra194 memory controller 
The memory and external memory controllers on Tegra194 are very similar
to their predecessors from Tegra186. Add the necessary SoC-specific data
to support the newer versions.

Signed-off-by: Thierry Reding <treding@nvidia.com>
 2020-01-09 19:38:38 +01:00
Thierry Reding
4e04b88633 memory: tegra: Only include support for enabled SoCs 
The memory client tables can be fairly large and they can easily be
omitted if support for the corresponding SoC is not enabled.

Signed-off-by: Thierry Reding <treding@nvidia.com>
 2020-01-09 19:35:54 +01:00
Thierry Reding
52d15dd23f memory: tegra: Support DVFS on Tegra186 and later 
Add a Tegra186 (and later) EMC driver that reads the EMC DVFS tables
from BPMP and uses the EMC clock to change the external memory clock.

This currently only provides a debugfs interface to show the available
frequencies and set lower and upper limits of the allowed range. This
can be used for testing the various frequencies. The goal is to
eventually integrate this with the interconnect framework so that the
EMC frequency can be scaled based on demand from memory clients.

Signed-off-by: Thierry Reding <treding@nvidia.com>
 2020-01-09 19:35:54 +01:00