]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
arm64: tegra: Disable Tegra234 sce-fabric node
authorSumit Gupta <sumitg@nvidia.com>
Wed, 18 Dec 2024 00:07:37 +0000 (00:07 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 17 Feb 2025 09:05:29 +0000 (10:05 +0100)
commita9fb1a44cfb24d66d8f455c1972932c675fd0f94
treeed0a36fe48a96b703e198e63641d62ffa431980f
parent36d6ea0000cda3152da21528d513bf4cb1504dbd
arm64: tegra: Disable Tegra234 sce-fabric node

commit a5e6fc0a10fe280989f1367a3b4f8047c7d00ea6 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm64/boot/dts/nvidia/tegra234.dtsi