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It appears that whatever was preventing us from using CPU idle with
PSCI low power states has disappeared, so let's enable the low power
states in the DT.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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As it turns out, it is surprisingly easy to configure both the NETSEC
and eMMC devices as cache coherent for DMA, given that they are both
behind the same SMMU which is already configured in passthrough mode
by the firmware running on the SCP.
So update the static SMMU configuration to make memory accesses performed
by these devices inner shareable inner/outer writeback cacheable, which
makes them cache coherent with the CPUs.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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Describe the SynQuacer SoC's eMMC controller in DT so the OS can
attach to it.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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Add a DT node for the external interrupt unit (EXIU), which handles
interrupts from GPIO lines. We need OS support for this for things
like PHY interrupts and a 'wake' button.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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Add a description of the SoCs GPIO controller as well as a description
of DIP switch block #3, which is wired to GPIOs 0 - 7, both on the
evaluation board as well as the Developer Box.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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Add a device tree description of the SynQuacer SoC, and expose it for
the SynQuacerEvalBoard platforms. This includes the menu option in the
UEFI boot menu to switch between ACPI and DT.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
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