tree 15c30eca17317a92ac4c2dbfd9ac35d24f495011
parent e8cf3dd440916da99fdcf22069a95dde3ea31e13
author Stephen Warren <swarren@nvidia.com> 1362055209 +0000
committer Tom Warren <twarren@nvidia.com> 1363284403 -0700

ARM: tegra: implement WAR for Tegra114 CPU reset vector

A Tegra114 HW bug prevents the main CPU vector from being modified under
certain circumstances. Tegra114 A01P and later with a patched boot ROM
set the CPU reset vector to 0x4003fffc (end of IRAM). This allows placing
an arbitrary jump instruction at that location, in order to redirect to
the desired reset vector location. Modify Tegra114's start_cpu() to make
use of this feature. This allows CPUs with the patched boot ROM to boot.

Based-on-work-by: Jimmy Zhang <jimmzhang@nvidia.com>.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>