diff options
| author | Sumit Gupta <sumitg@nvidia.com> | 2024-12-18 03:07:37 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2025-01-09 16:18:00 +0300 |
| commit | a5e6fc0a10fe280989f1367a3b4f8047c7d00ea6 (patch) | |
| tree | 86d6ede36347e559ba273a75fec4f54436dc2f6d | |
| parent | 604120fd9e9df50ee0e803d3c6e77a1f45d2c58e (diff) | |
| download | linux-a5e6fc0a10fe280989f1367a3b4f8047c7d00ea6.tar.xz | |
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>
| -rw-r--r-- | arch/arm64/boot/dts/nvidia/tegra234.dtsi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi index 62b9f1784030..28c7aacf6bc1 100644 --- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi @@ -3815,7 +3815,7 @@ compatible = "nvidia,tegra234-sce-fabric"; reg = <0x0 0xb600000 0x0 0x40000>; interrupts = <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>; - status = "okay"; + status = "disabled"; }; rce-fabric@be00000 { |