From: Neha Malcom Francis <n-francis@ti.com>
Date: Thu, 5 Jun 2025 06:35:05 +0000 (+0530)
Subject: dt-bindings: soc: ti: bist: Add BIST for K3 devices
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=04ee170b69749851c74666079ac8f64dba52a2f1;p=users%2Fjedix%2Flinux-maple.git

dt-bindings: soc: ti: bist: Add BIST for K3 devices

Document the binding for TI K3 BIST (Built-In Self Test) block.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Link: https://lore.kernel.org/r/20250605063506.2005637-2-n-francis@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
---

diff --git a/Documentation/devicetree/bindings/soc/ti/ti,j784s4-bist.yaml b/Documentation/devicetree/bindings/soc/ti/ti,j784s4-bist.yaml
new file mode 100644
index 0000000000000..a73691cf5624b
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/ti/ti,j784s4-bist.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2025 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/ti/ti,j784s4-bist.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments K3 BIST
+
+maintainers:
+  - Neha Malcom Francis <n-francis@ti.com>
+
+allOf:
+  - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
+
+description:
+  The BIST (Built-In Self Test) module is an IP block present in K3 devices
+  that support triggering of BIST tests, both PBIST (Memory BIST) and LBIST
+  (Logic BIST) on a core. Both tests are destructive in nature. At boot, BIST
+  is executed by hardware for the MCU domain automatically as part of HW POST.
+
+properties:
+  compatible:
+    const: ti,j784s4-bist
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: cfg
+      - const: ctrl_mmr
+
+  clocks:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - ti,sci-dev-id
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/ti,sci_pm_domain.h>
+    bus {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        safety-selftest@33c0000 {
+            compatible = "ti,j784s4-bist";
+            reg = <0x00 0x033c0000 0x00 0x400>,
+                  <0x00 0x0010c1a0 0x00 0x01c>;
+            reg-names = "cfg", "ctrl_mmr";
+            clocks = <&k3_clks 237 7>;
+            power-domains = <&k3_pds 237 TI_SCI_PD_EXCLUSIVE>;
+            ti,sci-dev-id = <234>;
+        };
+    };