e90e75b12c
It's meant to provide upstream support for mtd & NVMEM. It's required e.g. for reading MAC address from mtd partition content. It seems to be in a final shape so it's worth testing. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
118 lines
3.0 KiB
Diff
118 lines
3.0 KiB
Diff
From 377aa0135dc8489312edd3184d143ce3a89ff7ee Mon Sep 17 00:00:00 2001
|
|
From: Ansuel Smith <ansuelsmth@gmail.com>
|
|
Date: Fri, 12 Mar 2021 07:28:21 +0100
|
|
Subject: [PATCH] dt-bindings: mtd: Document use of nvmem-cells compatible
|
|
|
|
Document nvmem-cells compatible used to treat mtd partitions as a
|
|
nvmem provider.
|
|
|
|
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
|
|
Reviewed-by: Rob Herring <robh@kernel.org>
|
|
---
|
|
.../bindings/mtd/partitions/nvmem-cells.yaml | 99 +++++++++++++++++++
|
|
1 file changed, 99 insertions(+)
|
|
create mode 100644 Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml
|
|
|
|
--- /dev/null
|
|
+++ b/Documentation/devicetree/bindings/mtd/partitions/nvmem-cells.yaml
|
|
@@ -0,0 +1,99 @@
|
|
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
|
|
+%YAML 1.2
|
|
+---
|
|
+$id: http://devicetree.org/schemas/mtd/partitions/nvmem-cells.yaml#
|
|
+$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
+
|
|
+title: Nvmem cells
|
|
+
|
|
+description: |
|
|
+ Any partition containing the compatible "nvmem-cells" will register as a
|
|
+ nvmem provider.
|
|
+ Each direct subnodes represents a nvmem cell following the nvmem binding.
|
|
+ Nvmem binding to declare nvmem-cells can be found in:
|
|
+ Documentation/devicetree/bindings/nvmem/nvmem.yaml
|
|
+
|
|
+maintainers:
|
|
+ - Ansuel Smith <ansuelsmth@gmail.com>
|
|
+
|
|
+allOf:
|
|
+ - $ref: /schemas/nvmem/nvmem.yaml#
|
|
+
|
|
+properties:
|
|
+ compatible:
|
|
+ const: nvmem-cells
|
|
+
|
|
+required:
|
|
+ - compatible
|
|
+
|
|
+additionalProperties: true
|
|
+
|
|
+examples:
|
|
+ - |
|
|
+ partitions {
|
|
+ compatible = "fixed-partitions";
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <1>;
|
|
+
|
|
+ /* ... */
|
|
+
|
|
+ };
|
|
+ art: art@1200000 {
|
|
+ compatible = "nvmem-cells";
|
|
+ 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@1000 {
|
|
+ reg = <0x1000 0x2f20>;
|
|
+ };
|
|
+
|
|
+ pre_cal_5g: pre_cal_5g@5000{
|
|
+ reg = <0x5000 0x2f20>;
|
|
+ };
|
|
+ };
|
|
+ - |
|
|
+ partitions {
|
|
+ compatible = "fixed-partitions";
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <1>;
|
|
+
|
|
+ partition@0 {
|
|
+ label = "bootloader";
|
|
+ reg = <0x000000 0x100000>;
|
|
+ read-only;
|
|
+ };
|
|
+
|
|
+ firmware@100000 {
|
|
+ compatible = "brcm,trx";
|
|
+ label = "firmware";
|
|
+ reg = <0x100000 0xe00000>;
|
|
+ };
|
|
+
|
|
+ calibration@f00000 {
|
|
+ compatible = "nvmem-cells";
|
|
+ label = "calibration";
|
|
+ reg = <0xf00000 0x100000>;
|
|
+ ranges = <0 0xf00000 0x100000>;
|
|
+ #address-cells = <1>;
|
|
+ #size-cells = <1>;
|
|
+
|
|
+ wifi0@0 {
|
|
+ reg = <0x000000 0x080000>;
|
|
+ };
|
|
+
|
|
+ wifi1@80000 {
|
|
+ reg = <0x080000 0x080000>;
|
|
+ };
|
|
+ };
|
|
+ };
|