6.6-stable review patch. If anyone has any objections, please let me know.
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From: Sumit Gupta sumitg@nvidia.com
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 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi @@ -1709,7 +1709,7 @@ 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 {