Sumit Gupta 692bce2cf5 arm64: tegra: Disable Tegra234 sce-fabric node ...

Access to safety cluster engine (SCE) fabric registers was blocked
by firewall after the introduction of Functional Safety Island in
Tegra234. After that, any access by software to SCE registers is
correctly resulting in the internal bus error. However, when CPUs
try accessing the SCE-fabric registers to print error info,
another firewall error occurs as the fabric registers are also
firewall protected. This results in a second error to be printed.
Disable the SCE fabric node to avoid printing the misleading error.
The first error info will be printed by the interrupt from the
fabric causing the actual access.

Cc: stable@vger.kernel.org
Fixes: 302e154000ec ("arm64: tegra: Add node for CBB 2.0 on Tegra234")
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Ivy Huang <yijuh@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20241218000737.1789569-3-yijuh@nvidia.com
Signed-off-by: Thierry Reding <treding@nvidia.com>
(cherry picked from mainline commit a5e6fc0a10fe280989f1367a3b4f8047c7d00ea6)

Bug 4369009

Change-Id: Ia0a5906362a636b07730792c8802daca2d53cc36
Signed-off-by: Yi Ju Huang <yijuh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/device/hardware/nvidia/t23x-public-dts/+/3295633
(cherry picked from commit f05e1511ba)
Reviewed-on: https://git-master.nvidia.com/r/c/device/hardware/nvidia/t23x-public-dts/+/3298148
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>

2025-02-11 23:39:21 -08:00

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