ARM: tegra: support for secondary cores on Tegra30

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Add support for bringing up secondary cores on Tegra30. On Tegra30 secondary
CPU cores are powergated, so we need to turn on the domains before we can bring
the CPU cores online. Bringing secondary cores online happens early during the
sytem boot, so we call powergating initialization from platform early_init
function.

Based on work by:

Scott Williams <scwilliams@nvidia.com>
Colin Cross <ccross@android.com>
Alex Frid <afrid@nvidia.com>

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

...

This commit is contained in:

Peter De Schrijver 2012-02-10 01:47:50 +02:00 • committed by Olof Johansson

parent 65fe31da5c

commit 86e51a2ee4

2 changed files with 81 additions and 1 deletions

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32

arch/arm/mach-tegra/headsmp.S

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50

arch/arm/mach-tegra/platsmp.c

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