]> git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/commit
ARM: tegra: Correct PL310 Auxiliary Control Register initialization
authorDmitry Osipenko <digetx@gmail.com>
Fri, 13 Mar 2020 09:01:04 +0000 (12:01 +0300)
committerKhalid Elmously <khalid.elmously@canonical.com>
Sat, 8 Aug 2020 05:53:12 +0000 (01:53 -0400)
commit99c71b15a1d5103ded28129369263cb418c72ad0
tree7ea61c754cc6e8dbc9ff9030d56d5913455a94e9
parent1dc908a01dfb25d18f1d0ced360b63d2c8c6b5d8
ARM: tegra: Correct PL310 Auxiliary Control Register initialization

BugLink: https://bugs.launchpad.net/bugs/1885023
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>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kelsey Skunberg <kelsey.skunberg@canonical.com>
arch/arm/mach-tegra/tegra.c