tree 52c81ea41fce50f8db6c7732a3d4743182fab57e
parent bf161d2163f7b8bf4823829dbc1a14111760187e
author Joseph Lo <josephl@nvidia.com> 1361268973 +0800
committer Stephen Warren <swarren@nvidia.com> 1363033762 -0600

ARM: tegra: don't unlock MMIO access to DBGLAR

There is no need to unlock MMIO access to the DBGLAR all the time. Doing
so may even cause problems if a SW bug causes writes to that MMIO region.

Cortex-A15 processors do not support the CP14 register write the code
currently uses to unlock the DBGLAR; the instruction throws an undefined
instruction exceptions. This prevents tegra_secondary_startup() from
executing on Tegra114, and hence prevents SMP.

Remove the code that unlocks this access.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>