93 lines
2.6 KiB
Diff
93 lines
2.6 KiB
Diff
From 6e9dff6fe3fbc452f16566e4a7e293b0decefdba Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Thu, 11 Feb 2021 23:04:26 +0100
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Subject: [PATCH] dt-bindings: mtd: add binding for BCM4908 partitions
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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BCM4908 uses fixed partitions layout but function of some partitions may
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vary. Some devices use multiple firmware partitions and those partitions
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should be marked to let system discover their purpose.
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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Signed-off-by: Richard Weinberger <richard@nod.at>
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---
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.../partitions/brcm,bcm4908-partitions.yaml | 70 +++++++++++++++++++
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1 file changed, 70 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/mtd/partitions/brcm,bcm4908-partitions.yaml
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm4908-partitions.yaml
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@@ -0,0 +1,70 @@
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/mtd/partitions/brcm,bcm4908-partitions.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Broadcom BCM4908 partitioning
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+
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+description: |
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+ Broadcom BCM4908 CFE bootloader supports two firmware partitions. One is used
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+ for regular booting, the other is treated as fallback.
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+
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+ This binding allows defining all fixed partitions and marking those containing
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+ firmware. System can use that information e.g. for booting or flashing
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+ purposes.
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+
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+maintainers:
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+ - Rafał Miłecki <rafal@milecki.pl>
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+
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+properties:
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+ compatible:
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+ const: brcm,bcm4908-partitions
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+
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+ "#address-cells":
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+ enum: [ 1, 2 ]
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+
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+ "#size-cells":
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+ enum: [ 1, 2 ]
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+
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+patternProperties:
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+ "^partition@[0-9a-f]+$":
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+ $ref: "partition.yaml#"
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+ properties:
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+ compatible:
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+ const: brcm,bcm4908-firmware
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+ unevaluatedProperties: false
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+
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+required:
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+ - "#address-cells"
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+ - "#size-cells"
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+
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+additionalProperties: false
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+
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+examples:
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+ - |
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+ partitions {
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+ compatible = "brcm,bcm4908-partitions";
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+ #address-cells = <1>;
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+ #size-cells = <1>;
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+
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+ partition@0 {
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+ label = "cferom";
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+ reg = <0x0 0x100000>;
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+ };
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+
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+ partition@100000 {
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+ compatible = "brcm,bcm4908-firmware";
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+ reg = <0x100000 0xf00000>;
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+ };
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+
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+ partition@1000000 {
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+ compatible = "brcm,bcm4908-firmware";
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+ reg = <0x1000000 0xf00000>;
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+ };
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+
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+ partition@1f00000 {
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+ label = "calibration";
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+ reg = <0x1f00000 0x100000>;
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+ };
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+ };
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