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X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Dec 2025 16:51:16.2276 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 577b45d6-7092-468f-a68b-08de488cd079 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.195];Helo=[flwvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF00022571.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS4PPF92DC283F3 Content-Type: text/plain; charset="utf-8" Some of the TI K3 family of SoCs have a HSM (High Security Module) M4F core in the Wakeup Voltage Domain which could be used to run secure services like Authentication. Add the device tree bindings document for this HSM M4F core. The added example illustrates the DT node for the HSM core present on K3 J722S SoC. Signed-off-by: Beleswar Padhi --- .../bindings/remoteproc/ti,k3-hsm-rproc.yaml | 79 +++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,k3-hsm-= rproc.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/ti,k3-hsm-rproc.y= aml b/Documentation/devicetree/bindings/remoteproc/ti,k3-hsm-rproc.yaml new file mode 100644 index 0000000000000..f61e4046843af --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/ti,k3-hsm-rproc.yaml @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/ti,k3-hsm-rproc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI K3 HSM M4F processor subsystems + +maintainers: + - Beleswar Padhi + +description: | + Some K3 family SoCs have a HSM (High Security Module) M4F core in the + Wakeup Voltage Domain which could be used to run secure services like + Authentication. Some of those are J721S2, J784S4, J722S, AM62X. + +$ref: /schemas/arm/keystone/ti,k3-sci-common.yaml# + +properties: + compatible: + enum: + - ti,hsm-m4fss + + "#address-cells": + const: 2 + + "#size-cells": + const: 2 + + reg: + items: + - description: SRAM0_0 internal memory region + - description: SRAM0_1 internal memory region + - description: SRAM1 internal memory region + + reg-names: + items: + - const: sram0_0 + - const: sram0_1 + - const: sram1 + + resets: + maxItems: 1 + + firmware-name: + maxItems: 1 + description: Name of firmware to load for the HSM core + +required: + - compatible + - reg + - reg-names + - resets + - firmware-name + - ti,sci + - ti,sci-dev-id + - ti,sci-proc-ids + +unevaluatedProperties: false + +examples: + - | + soc { + #address-cells =3D <2>; + #size-cells =3D <2>; + + remoteproc@43c00000 { + compatible =3D "ti,hsm-m4fss"; + reg =3D <0x00 0x43c00000 0x00 0x20000>, + <0x00 0x43c20000 0x00 0x10000>, + <0x00 0x43c30000 0x00 0x10000>; + reg-names =3D "sram0_0", "sram0_1", "sram1"; + resets =3D <&k3_reset 225 1>; + firmware-name =3D "hsm.bin"; + ti,sci =3D <&sms>; + ti,sci-dev-id =3D <225>; + ti,sci-proc-ids =3D <0x80 0xff>; + }; + }; --=20 2.34.1