Commit Graph

7 Commits

Author SHA1 Message Date
Dmitry Osipenko
da0ad8983c ARM: tegra: ouya: Add interrupt to temperature sensor node
The TEMP_ALERT pin of LM90 temperature sensor is connected to Tegra SoC.
Add interrupt property to the temperature sensor and enable it in pinmux,
for completeness.

Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-08-13 13:11:14 +02:00
Dmitry Osipenko
4c101a4466 ARM: tegra: ouya: Enable memory frequency thermal throttling using ACTMON
The ACTMON module monitors activity of memory clients and then devfreq
driver makes decisions about a required memory frequency based on info
from ACTMON. Add ACTMON device to the thermal zone of Ouya in order to
use it as a cooling device which throttles memory freq on overheat.

Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-05-31 11:40:29 +02:00
Dmitry Osipenko
b007744d8f ARM: tegra: Specify tps65911 as wakeup source
Specify TPS65911 as wakeup source on Tegra devices in order to allow
its RTC to wake up system from suspend by default instead of requiring
wakeup to be enabled manually via sysfs.

Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-03-24 16:09:58 +01:00
Dmitry Osipenko
f8693f78f4 ARM: tegra: ouya: Specify all CPU cores as cooling devices
If CPU0 is unplugged the cooling device can not rebind to CPU1. And if
CPU0 is plugged in again, the cooling device may fail to initialize.

If the CPUs are mapped with the physical CPU0 to Linux numbering
CPU1, the cooling device mapping will fail.

Hence specify all CPU cores as a cooling devices in the device-tree.

Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-03-24 16:09:17 +01:00
Peter Geis
3029a563ac ARM: tegra: ouya: Fix eMMC on specific bootloaders
Ouya fails to detect the eMMC module when booted via certain bootloaders.
Fastboot and hard-kexec bootloaders fail while u-boot does not. It was
discovered that the issue manifests if the sdmmc4 alternate configuration
clock pin is input disabled.

Ouya uses sdmmc4 in the primary pin configuration. It is unknown why this
occurs, though it is likely related to other eMMC limitations experienced
on Ouya.

For now, fix it by enabling input on cam_mclk_pcc0.

Fixes: d7195ac5c9 ("ARM: tegra: Add device-tree for Ouya")
Reported-by: Matt Merhar <mattmerhar@protonmail.com>
Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-01-29 17:08:03 +01:00
Dmitry Osipenko
881741fa44 ARM: tegra: Add EMC OPP and ICC properties to Tegra30 EMC and ACTMON device-tree nodes
Add EMC OPP tables and interconnect paths that will be used for
dynamic memory bandwidth scaling based on memory utilization statistics.
Update board device-trees by removing unsupported EMC OPPs.

Note that ACTMON watches all memory interconnect paths, but we use a
single CPU-READ interconnect path for driving memory bandwidth, for
simplicity.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-11-26 19:08:29 +01:00
Peter Geis
d7195ac5c9 ARM: tegra: Add device-tree for Ouya
The Ouya was the sole device produced by Ouya Inc in 2013.
It was a game console originally running Android 5 on top of Linux 3.1.10.

This patch adds the device tree supporting the Ouya.
It has been tested on the original variant with Samsung ram.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-11-26 19:06:44 +01:00