forked from Openwrt/openwrt
fc153aa8d9
Similar to supporting nvmem-layouts on MTD devices, also allow referencing UBI and MMC devices in DT. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
75 lines
2.3 KiB
Diff
75 lines
2.3 KiB
Diff
From 86864bf8f40e84dc881c197ef470a88668329dbf Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Mon, 7 Aug 2023 21:21:45 +0100
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Subject: [PATCH 12/15] dt-bindings: mmc: mmc-card: add block device nodes
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Add nodes representing the block devices exposed by an MMC device
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including an example involving nvmem-cells.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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---
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.../devicetree/bindings/mmc/mmc-card.yaml | 45 +++++++++++++++++++
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1 file changed, 45 insertions(+)
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--- a/Documentation/devicetree/bindings/mmc/mmc-card.yaml
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+++ b/Documentation/devicetree/bindings/mmc/mmc-card.yaml
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@@ -26,6 +26,18 @@ properties:
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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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+ block:
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+ $ref: /schemas/block/block-device.yaml#
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+ description:
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+ Represents the block storage provided by an SD card or the
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+ main hardware partition of an eMMC.
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+
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+patternProperties:
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+ '^boot[0-9]+':
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+ $ref: /schemas/block/block-device.yaml#
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+ description:
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+ Represents a boot hardware partition on an eMMC.
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+
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required:
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- compatible
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- reg
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@@ -42,6 +54,39 @@ examples:
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compatible = "mmc-card";
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reg = <0>;
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broken-hpi;
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+
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+ block {
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+ partitions {
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+ cal_data: block-partition-rf {
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+ partnum = <3>;
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+ partname = "rf";
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+
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+ nvmem-layout {
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+ compatible = "fixed-layout";
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+ #address-cells = <1>;
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+ #size-cells = <1>;
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+
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+ eeprom@0 {
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+ reg = <0x0 0x1000>;
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+ };
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+ };
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+ };
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+ };
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+ };
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+
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+ boot1 {
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+ nvmem-layout {
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+ compatible = "fixed-layout";
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+ #address-cells = <1>;
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+ #size-cells = <1>;
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+
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+ macaddr: macaddr@a {
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+ compatible = "mac-base";
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+ reg = <0xa 0x6>;
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+ #nvmem-cell-cells = <1>;
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+ };
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+ };
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+ };
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};
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};
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