From: Horia Geantă <horia.geanta@nxp.com>
Date: Wed, 11 Jun 2025 11:38:09 +0000 (+0000)
Subject: arm64: dts: freescale: imx8qxp/imx8qm: Add CAAM support
X-Git-Tag: v6.17-rc1~172^2~19^2~45
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5da259600d307f061aa34e56ded106d052a9d98a;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: freescale: imx8qxp/imx8qm: Add CAAM support

The iMX8QXP and iMX8QM have a CAAM (Cryptographic Acceleration and
Assurance Module) like many other iMXs.

Add the definitions for it.

Job Rings 0 and 1 are bound to the SECO (Security Controller) ARM core
and are not exposed outside it. There's no point to define them in the
bindings as they cannot be used outside the SECO.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: John Ernberg <john.ernberg@actia.se>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-security.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-security.dtsi
new file mode 100644
index 0000000000000..3e04142aca5cf
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8-ss-security.dtsi
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2019 NXP
+ */
+
+#include <dt-bindings/firmware/imx/rsrc.h>
+
+security_subsys: bus@31400000 {
+	compatible = "simple-bus";
+	#address-cells = <1>;
+	#size-cells = <1>;
+	ranges = <0x31400000 0x0 0x31400000 0x90000>;
+
+	crypto: crypto@31400000 {
+		compatible = "fsl,imx8qm-caam", "fsl,sec-v4.0";
+		reg = <0x31400000 0x90000>;
+		interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0x31400000 0x90000>;
+		power-domains = <&pd IMX_SC_R_CAAM_JR2>;
+		fsl,sec-era = <9>;
+
+		sec_jr2: jr@30000 {
+			compatible = "fsl,imx8qm-job-ring", "fsl,sec-v4.0-job-ring";
+			reg = <0x30000 0x10000>;
+			interrupts = <GIC_SPI 453 IRQ_TYPE_LEVEL_HIGH>;
+			power-domains = <&pd IMX_SC_R_CAAM_JR2>;
+		};
+
+		sec_jr3: jr@40000 {
+			compatible = "fsl,imx8qm-job-ring", "fsl,sec-v4.0-job-ring";
+			reg = <0x40000 0x10000>;
+			interrupts = <GIC_SPI 454 IRQ_TYPE_LEVEL_HIGH>;
+			power-domains = <&pd IMX_SC_R_CAAM_JR3>;
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8qm.dtsi b/arch/arm64/boot/dts/freescale/imx8qm.dtsi
index 11527050ac8bd..37babdbae8dd6 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8qm.dtsi
@@ -617,6 +617,7 @@
 	};
 
 	/* sorted in register address */
+	#include "imx8-ss-security.dtsi"
 	#include "imx8-ss-cm41.dtsi"
 	#include "imx8-ss-audio.dtsi"
 	#include "imx8-ss-vpu.dtsi"
diff --git a/arch/arm64/boot/dts/freescale/imx8qxp-ss-security.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp-ss-security.dtsi
new file mode 100644
index 0000000000000..15f1239dab244
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8qxp-ss-security.dtsi
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2025 Actia Nordic AB
+ */
+
+&crypto {
+	compatible = "fsl,imx8qxp-caam", "fsl,sec-v4.0";
+};
+
+&sec_jr2 {
+	compatible = "fsl,imx8qxp-job-ring", "fsl,sec-v4.0-job-ring";
+};
+
+&sec_jr3 {
+	compatible = "fsl,imx8qxp-job-ring", "fsl,sec-v4.0-job-ring";
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
index 05138326f0a57..e2e799cc294cf 100644
--- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
@@ -321,6 +321,7 @@
 	/* sorted in register address */
 	#include "imx8-ss-img.dtsi"
 	#include "imx8-ss-vpu.dtsi"
+	#include "imx8-ss-security.dtsi"
 	#include "imx8-ss-cm40.dtsi"
 	#include "imx8-ss-gpu0.dtsi"
 	#include "imx8-ss-adma.dtsi"
@@ -332,6 +333,7 @@
 
 #include "imx8qxp-ss-img.dtsi"
 #include "imx8qxp-ss-vpu.dtsi"
+#include "imx8qxp-ss-security.dtsi"
 #include "imx8qxp-ss-adma.dtsi"
 #include "imx8qxp-ss-conn.dtsi"
 #include "imx8qxp-ss-lsio.dtsi"