From 1ad4669b4bbe6b72784acdb5b24f72b22ad8f1d1 Mon Sep 17 00:00:00 2001 From: Andrew Davis Date: Mon, 22 Aug 2022 19:11:33 -0500 Subject: arm64: dts: ti: k3-am65-main: Disable RNG node The hardware random number generator is used by OP-TEE and is access is denied to other users with SoC level bus firewalls. Any access to this device from Linux will result in firewall errors. We could remove this node, but it is still valid device description, and it is possible it could be re-enabled in the bootloader if OP-TEE is not used. So only disable this node for now. Signed-off-by: Andrew Davis Signed-off-by: Vignesh Raghavendra Reviewed-by: Jayesh Choudhary Link: https://lore.kernel.org/r/20220823001136.10944-1-afd@ti.com --- arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm64/boot/dts/ti/k3-am65-main.dtsi') diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi index 8919fede3cd7..b3e714e1abed 100644 --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi @@ -127,6 +127,7 @@ reg = <0x0 0x4e10000 0x0 0x7d>; interrupts = ; clocks = <&k3_clks 136 1>; + status = "disabled"; /* Used by OP-TEE */ }; }; -- cgit