101 lines
2.3 KiB
YAML
101 lines
2.3 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mmc/mmc-card.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MMC Card / eMMC Generic
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maintainers:
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- Ulf Hansson <ulf.hansson@linaro.org>
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description: |
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This documents describes the devicetree bindings for a mmc-host controller
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child node describing a mmc-card / an eMMC.
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It's possible to define a fixed partition table for an eMMC for the user
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partition, the 2 BOOT partition (boot1/2) and the 4 GP (gp1/2/3/4) if supported
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by the eMMC.
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properties:
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compatible:
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const: mmc-card
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reg:
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const: 0
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broken-hpi:
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$ref: /schemas/types.yaml#/definitions/flag
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description:
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Use this to indicate that the mmc-card has a broken hpi
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implementation, and that hpi should not be used.
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patternProperties:
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"^partitions(-boot[12]|-gp[14])?$":
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$ref: /schemas/mtd/partitions/partitions.yaml
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patternProperties:
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"^partition@[0-9a-f]+$":
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$ref: /schemas/mtd/partitions/partition.yaml
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properties:
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reg:
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description: Must be multiple of 512 as it's converted
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internally from bytes to SECTOR_SIZE (512 bytes)
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required:
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- reg
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unevaluatedProperties: false
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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mmc {
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#address-cells = <1>;
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#size-cells = <0>;
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card@0 {
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compatible = "mmc-card";
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reg = <0>;
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broken-hpi;
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "kernel"; /* Kernel */
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reg = <0x0 0x2000000>; /* 32 MB */
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};
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partition@2000000 {
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label = "rootfs";
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reg = <0x2000000 0x40000000>; /* 1GB */
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};
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};
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partitions-boot1 {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "bl";
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reg = <0x0 0x2000000>; /* 32MB */
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read-only;
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};
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};
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};
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};
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...
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