ARM: tegra: Correct PL310 Auxiliary Control Register initialization
authorDmitry Osipenko <digetx@gmail.com>
Fri, 13 Mar 2020 09:01:04 +0000 (12:01 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 22 Jun 2020 07:31:22 +0000 (09:31 +0200)
commitbe20b99a86b3dcdaa594867f468de3ef3a9bcda3
tree9f1b73b1a2ce64a01d2453be13c65cd65897aa26
parentb5d2f71b98b73f36c78b340411a07194d8536e72
ARM: tegra: Correct PL310 Auxiliary Control Register initialization

commit 35509737c8f958944e059d501255a0bf18361ba0 upstream.

The PL310 Auxiliary Control Register shouldn't have the "Full line of
zero" optimization bit being set before L2 cache is enabled. The L2X0
driver takes care of enabling the optimization by itself.

This patch fixes a noisy error message on Tegra20 and Tegra30 telling
that cache optimization is erroneously enabled without enabling it for
the CPU:

L2C-310: enabling full line of zeros but not enabled in Cortex-A9

Cc: <stable@vger.kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm/mach-tegra/tegra.c