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From: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org, Stephen Boyd <swboyd@chromium.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	Rajendra Nayak <rnayak@codeaurora.org>,
	Sibi Sankar <sibis@codeaurora.org>,
	Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Subject: [PATCH 2/3] dt-bindings: msm: Add QTI download mode support binding
Date: Thu, 12 Aug 2021 14:47:41 +0530	[thread overview]
Message-ID: <217c22d40e0a9db713e2a55623408eca88166897.1628757036.git.saiprakash.ranjan@codeaurora.org> (raw)
In-Reply-To: <cover.1628757036.git.saiprakash.ranjan@codeaurora.org>

Add device tree binding for QTI download mode cookies
region found in IMEM.

Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
---
 .../bindings/arm/msm/qcom,dload-mode.yaml     | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,dload-mode.yaml

diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,dload-mode.yaml b/Documentation/devicetree/bindings/arm/msm/qcom,dload-mode.yaml
new file mode 100644
index 000000000000..90b9b6a9b75e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/msm/qcom,dload-mode.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/msm/qcom,dload-mode.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Download Mode binding
+
+maintainers:
+  - Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
+
+description:
+  Qualcomm download mode cookies memory region in IMEM is used by SDI
+  (System Debug Image) firmware to determine whether to enter download
+  mode or not to collect ramdump for post mortem debug.
+
+properties:
+  compatible:
+    const: qcom,dload-mode
+
+  reg:
+    maxItems: 1
+
+  qcom,sdi-disable-regs:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description:
+      Phandle reference to a syscon representing TCSR followed by the
+      offset and length for SDI disable register.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    imem@146aa000 {
+      compatible = "simple-mfd";
+      reg = <0x146aa000 0x2000>;
+
+      #address-cells = <1>;
+      #size-cells = <1>;
+
+      ranges = <0 0x146aa000 0x2000>;
+
+      dload-mode@1c00 {
+        compatible = "qcom,dload-mode";
+        reg = <0x1c00 0x1000>;
+        qcom,sdi-disable-regs = <&tcsr_regs 0x3a000 0x4>;
+      };
+    };
+...
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation


  parent reply	other threads:[~2021-08-12  9:19 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-12  9:17 [PATCH 0/3] soc: qcom: Add download mode support for QTI platforms Sai Prakash Ranjan
2021-08-12  9:17 ` [PATCH 1/3] soc: qcom: Add download mode support Sai Prakash Ranjan
2021-08-12  9:17 ` Sai Prakash Ranjan [this message]
2021-08-17 21:28   ` [PATCH 2/3] dt-bindings: msm: Add QTI download mode support binding Rob Herring
2021-08-18  3:36     ` Sai Prakash Ranjan
2021-08-12  9:17 ` [PATCH 3/3] arm64: dts: qcom: sc7180: Add IMEM, pil info and download mode region Sai Prakash Ranjan
2021-09-27 22:56   ` (subset) " Bjorn Andersson
2021-08-13  0:16 ` [PATCH 0/3] soc: qcom: Add download mode support for QTI platforms Stephen Boyd
2021-08-13  4:31   ` Trilok Soni
2021-08-16 10:38   ` Sai Prakash Ranjan

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