linux-kernel - [PATCH v4 1/7] dt-bindings: nvme: Document nvme-card compatible

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Message-ID: <20240809172106.25892-2-ansuelsmth@gmail.com>
Date: Fri,  9 Aug 2024 19:20:59 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: Ulf Hansson <ulf.hansson@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>,
	Joern Engel <joern@...ybastard.org>,
	Keith Busch <kbusch@...nel.org>,
	Jens Axboe <axboe@...nel.dk>,
	Christoph Hellwig <hch@....de>,
	Sagi Grimberg <sagi@...mberg.me>,
	Saravana Kannan <saravanak@...gle.com>,
	Christian Marangi <ansuelsmth@...il.com>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	linux-mmc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mtd@...ts.infradead.org,
	linux-nvme@...ts.infradead.org
Subject: [PATCH v4 1/7] dt-bindings: nvme: Document nvme-card compatible

Document new nvme-card compatible to permit defining fixed-partition in
DT by the use of the block2mtd module to use block devices as MTD.

Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---
 .../devicetree/bindings/nvme/nvme-card.yaml   | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/nvme/nvme-card.yaml

diff --git a/Documentation/devicetree/bindings/nvme/nvme-card.yaml b/Documentation/devicetree/bindings/nvme/nvme-card.yaml
new file mode 100644
index 000000000000..20e9a877fac4
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvme/nvme-card.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvme/nvme-card.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVME Card
+
+maintainers:
+  - Christian Marangi <ansuelsmth@...il.com>
+
+description: |
+  This documents describes the devicetree bindings for a NVME controller
+  child node describing a nvme-card.
+
+properties:
+  compatible:
+    const: nvme-card
+
+  partitions:
+    $ref: /schemas/mtd/partitions/partitions.yaml
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    pcie {
+        #address-cells = <3>;
+        #size-cells = <2>;
+
+        bridge@0,0 {
+            reg = <0x00000000 0 0 0 0>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            ranges;
+
+            nvme@1,0 {
+                compatible = "pci144d,a809";
+
+                reg = <0x00010000 0 0 0 0>;
+                #address-cells = <1>;
+                #size-cells = <1>;
+
+                card {
+                    compatible = "nvme-card";
+
+                    partitions {
+                        compatible = "fixed-partitions";
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+
+                        bootloader@0 {
+                          label = "bootloader";
+                          reg = <0x00000000 0x00080000>;
+                        };
+
+                        tclinux@...00 {
+                          label = "tclinux";
+                          reg = <0x00080000 0x02800000>;
+                        };
+
+                        tclinux_slave@...0000 {
+                          label = "tclinux_slave";
+                          reg = <0x02880000 0x02800000>;
+                        };
+
+                        rootfs_data@...0000 {
+                          label = "rootfs_data";
+                          reg = <0x5080000 0x00800000>;
+                        };
+                    };
+                };
+            };
+        };
+    };
-- 
2.45.2