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Message-Id: <20210216212638.28382-4-ansuelsmth@gmail.com>
Date: Tue, 16 Feb 2021 22:26:28 +0100
From: Ansuel Smith <ansuelsmth@...il.com>
To: Richard Weinberger <richard@....at>
Cc: Ansuel Smith <ansuelsmth@...il.com>,
Miquel Raynal <miquel.raynal@...tlin.com>,
Vignesh Raghavendra <vigneshr@...com>,
Rob Herring <robh+dt@...nel.org>,
Boris Brezillon <bbrezillon@...nel.org>,
linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/3] dt-bindings: mtd: Document use of nvmem-partitions compatible
Document nvmem-partitions compatible used to treat mtd partitions as a
nvmem provider.
Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
---
.../mtd/partitions/nvmem-partitions.yaml | 105 ++++++++++++++++++
1 file changed, 105 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/partitions/nvmem-partitions.yaml
diff --git a/Documentation/devicetree/bindings/mtd/partitions/nvmem-partitions.yaml b/Documentation/devicetree/bindings/mtd/partitions/nvmem-partitions.yaml
new file mode 100644
index 000000000000..1ff283febcaa
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/partitions/nvmem-partitions.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/nvmem-partitions.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nvmem partitions
+
+description: |
+ This binding can be used to treat the specific partition as a nvmem provider.
+ Each direct subnodes represents the nvmem cells and won't be parsed as fixed-partitions.
+ Fixed-partitions bindings described in fixed-partitions.yaml apply to the nvmem provider node.
+
+maintainers:
+ - Ansuel Smith <ansuelsmth@...il.com>
+
+properties:
+ compatible:
+ const: nvmem-partitions
+
+ "#address-cells": true
+
+ "#size-cells": true
+
+ reg:
+ description: partition's offset and size within the flash
+ maxItems: 1
+
+required:
+ - compatible
+ - "#address-cells"
+ - "#size-cells"
+ - reg
+
+additionalProperties: true
+
+examples:
+ - |
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* ... */
+
+ };
+ art: art@...0000 {
+ compatible = "nvmem-partitions";
+ reg = <0x1200000 0x0140000>;
+ label = "art";
+ read-only;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ macaddr_gmac1: macaddr_gmac1@0 {
+ reg = <0x0 0x6>;
+ };
+
+ macaddr_gmac2: macaddr_gmac2@6 {
+ reg = <0x6 0x6>;
+ };
+
+ pre_cal_24g: pre_cal_24g@...0 {
+ reg = <0x1000 0x2f20>;
+ };
+
+ pre_cal_5g: pre_cal_5g@...0{
+ reg = <0x5000 0x2f20>;
+ };
+ };
+ - |
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "bootloader";
+ reg = <0x000000 0x100000>;
+ read-only;
+ };
+
+ firmware@...000 {
+ compatible = "brcm,trx";
+ label = "firmware";
+ reg = <0x100000 0xe00000>;
+ };
+
+ calibration@...000 {
+ compatible = "nvmem-partitions";
+ label = "calibration";
+ reg = <0xf00000 0x100000>;
+ ranges = <0 0xf00000 0x100000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ wifi0@0 {
+ reg = <0x000000 0x080000>;
+ };
+
+ wifi1@...00 {
+ reg = <0x080000 0x080000>;
+ };
+ };
+ };
--
2.30.0
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