public inbox for devicetree@vger.kernel.org
 help / color / mirror / Atom feed
From: Crystal Guo <crystal.guo@mediatek.com>
To: Krzysztof Kozlowski <krzk@kernel.org>,
	Rob Herring <robh@kernel.org>, Conor Dooley <conor+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	Crystal Guo <crystal.guo@mediatek.com>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<Project_Global_Chrome_Upstream_Group@mediatek.com>
Subject: [v3,1/2] dt-bindings: memory-controllers: Add MediaTek DRAM controller interface
Date: Wed, 26 Mar 2025 14:30:31 +0800	[thread overview]
Message-ID: <20250326063041.7126-2-crystal.guo@mediatek.com> (raw)
In-Reply-To: <20250326063041.7126-1-crystal.guo@mediatek.com>

A MediaTek DRAM controller interface to provide the current DDR
data rate.

Signed-off-by: Crystal Guo <crystal.guo@mediatek.com>
---
 .../memory-controllers/mediatek,dramc.yaml    | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/mediatek,dramc.yaml

diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,dramc.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,dramc.yaml
new file mode 100644
index 000000000000..8bdacfc36cb5
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,dramc.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2025 MediaTek Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/mediatek,dramc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek DRAM Controller (DRAMC)
+
+maintainers:
+  - Crystal Guo <crystal.guo@mediatek.com>
+
+description:
+  A MediaTek DRAM controller interface to provide the current data rate of DRAM.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - mediatek,mt8196-dramc
+
+  reg:
+    items:
+      - description: anaphy registers
+      - description: ddrphy registers
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        memory-controller@10236000 {
+            compatible = "mediatek,mt8196-dramc";
+            reg = <0 0x10236000 0 0x2000>,
+                  <0 0x10238000 0 0x2000>;
+        };
+    };
-- 
2.18.0


  reply	other threads:[~2025-03-26  6:31 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-26  6:30 [v3,0/2] Add an interface to get current DDR data rate Crystal Guo
2025-03-26  6:30 ` Crystal Guo [this message]
2025-03-26  7:56   ` [v3,1/2] dt-bindings: memory-controllers: Add MediaTek DRAM controller interface Krzysztof Kozlowski
2025-03-26 10:17     ` AngeloGioacchino Del Regno
2025-03-26 10:27       ` Krzysztof Kozlowski
2025-03-26 10:18   ` AngeloGioacchino Del Regno
2025-04-02  3:51     ` Crystal Guo (郭晶)
2025-04-02  9:24       ` AngeloGioacchino Del Regno
2025-03-26  6:30 ` [v3,2/2] memory/mediatek: Add an interface to get current DDR data rate Crystal Guo
2025-03-26 10:27   ` AngeloGioacchino Del Regno
2025-04-02  3:36     ` Crystal Guo (郭晶)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20250326063041.7126-2-crystal.guo@mediatek.com \
    --to=crystal.guo@mediatek.com \
    --cc=Project_Global_Chrome_Upstream_Group@mediatek.com \
    --cc=angelogioacchino.delregno@collabora.com \
    --cc=conor+dt@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=krzk@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=matthias.bgg@gmail.com \
    --cc=robh@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox