Commit Graph

7 Commits

Author SHA1 Message Date
Thierry Reding 03b3f4c8b7 soc/tegra: fuse: Rename core_* to soc_*
There's a mixture of core_* and soc_* prefixes for variables storing
information related to the VDD_CORE rail. Choose one (soc_*) and use it
more consistently.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:29 +02:00
Thierry Reding 0dc5a0d836 soc/tegra: fuse: Add Tegra210 support
Add Tegra210 support to the fuses driver and add Tegra210-specific
speedo definitions.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:29 +02:00
Thierry Reding 7e939de1b2 soc/tegra: fuse: Unify Tegra20 and Tegra30 drivers
Unifying the drivers makes it easier to restrict the legacy probing
paths to 32-bit ARM. This in turn will come in handy as support for
new 64-bit ARM SoCs is added.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 10:38:28 +02:00
Thierry Reding 9b07eb0537 soc/tegra: fuse: Add Tegra132 support
Tegra132 is very similar to Tegra124 from a peripheral point of view and
uses the same fuse controller.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-01-09 16:14:36 +01:00
Vince Hsu f9fc36618b soc/tegra: fuse: export tegra_sku_info
Some Tegra drivers might be compiled as kernel modules, and they need the
fuse information for initialization. One example is the GK20A Nouveau
driver. It needs the GPU speedo value to calculate frequency-voltage
table. So export the tegra_sku_info.

Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-12-02 15:43:37 +10:00
Thierry Reding 24fa5af810 soc/tegra: fuse: Set up in early initcall
Rather than rely on explicit initialization order called from SoC setup
code, use a plain initcall and rely on initcall ordering to take care of
dependencies.

This driver exposes some functionality (querying the chip ID) needed at
very early stages of the boot process. An early initcall is good enough
provided that some of the dependencies are deferred to later stages. To
make sure any abuses are easily caught, output a warning message if the
chip ID is queried while it can't be read yet.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-07-17 14:58:42 +02:00
Peter De Schrijver 783c8f4c84 soc/tegra: Add efuse driver for Tegra
Implement fuse driver for Tegra20, Tegra30, Tegra114 and Tegra124. This
replaces functionality previously provided in arch/arm/mach-tegra, which
is removed in this patch.

While at it, move the only user of the global tegra_revision variable
over to tegra_sku_info.revision and export tegra_fuse_readl() to allow
drivers to read calibration fuses.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-07-17 14:36:01 +02:00