linux-kernel - [PATCH] arm64: dts: ti: k3-am62p-j722s: add rng node

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Message-Id: <20250313144155.2382316-1-mwalle@kernel.org>
Date: Thu, 13 Mar 2025 15:41:55 +0100
From: Michael Walle <mwalle@...nel.org>
To: Nishanth Menon <nm@...com>,
	Vignesh Raghavendra <vigneshr@...com>,
	Tero Kristo <kristo@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Michael Walle <mwalle@...nel.org>
Subject: [PATCH] arm64: dts: ti: k3-am62p-j722s: add rng node

Add the node for the random number generator inside the crypto module.

Signed-off-by: Michael Walle <mwalle@...nel.org>
---
This was tested on a J722S/AM67A. Also, according to the TRM this is the
MCU instance of the SA3UL. But it's defined in -main.dtsi. Is this
correct?
---
 arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
index 6e3beb5c2e01..e868e006318e 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
@@ -227,9 +227,17 @@ crypto: crypto@...00000 {
 		reg = <0x00 0x40900000 0x00 0x1200>;
 		#address-cells = <2>;
 		#size-cells = <2>;
+		ranges = <0x00 0x40900000 0x00 0x40900000 0x00 0x30000>;
+
 		dmas = <&main_pktdma 0xf501 0>, <&main_pktdma 0x7506 0>,
 		       <&main_pktdma 0x7507 0>;
 		dma-names = "tx", "rx1", "rx2";
+
+		rng: rng@...10000 {
+			compatible = "inside-secure,safexcel-eip76";
+			reg = <0x00 0x40910000 0x0 0x7d>;
+			interrupts = <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>;
+		};
 	};
 
 	secure_proxy_sa3: mailbox@...00000 {
-- 
2.39.5