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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml b/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml new file mode 100644 index 000000000..987b287f3 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml @@ -0,0 +1,106 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright 2019 IBM Corp. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/aspeed,sdhci.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ASPEED SD/SDIO/MMC Controller + +maintainers: + - Andrew Jeffery <andrew@aj.id.au> + - Ryan Chen <ryanchen.aspeed@gmail.com> + +description: |+ + The ASPEED SD/SDIO/eMMC controller exposes two slots implementing the SDIO + Host Specification v2.00, with 1 or 4 bit data buses, or an 8 bit data bus if + only a single slot is enabled. + + The two slots are supported by a common configuration area. As the SDHCIs for + the slots are dependent on the common configuration area, they are described + as child nodes. + +properties: + compatible: + enum: + - aspeed,ast2400-sd-controller + - aspeed,ast2500-sd-controller + - aspeed,ast2600-sd-controller + reg: + maxItems: 1 + description: Common configuration registers + "#address-cells": + const: 1 + "#size-cells": + const: 1 + ranges: true + clocks: + maxItems: 1 + description: The SD/SDIO controller clock gate + +patternProperties: + "^sdhci@[0-9a-f]+$": + type: object + $ref: mmc-controller.yaml + + properties: + compatible: + enum: + - aspeed,ast2400-sdhci + - aspeed,ast2500-sdhci + - aspeed,ast2600-sdhci + reg: + maxItems: 1 + description: The SDHCI registers + clocks: + maxItems: 1 + description: The SD bus clock + interrupts: + maxItems: 1 + description: The SD interrupt shared between both slots + sdhci,auto-cmd12: + type: boolean + description: Specifies that controller should use auto CMD12 + required: + - compatible + - reg + - clocks + - interrupts + +additionalProperties: false + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + - ranges + - clocks + +examples: + - | + #include <dt-bindings/clock/aspeed-clock.h> + sdc@1e740000 { + compatible = "aspeed,ast2500-sd-controller"; + reg = <0x1e740000 0x100>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x1e740000 0x20000>; + clocks = <&syscon ASPEED_CLK_GATE_SDCLK>; + + sdhci0: sdhci@100 { + compatible = "aspeed,ast2500-sdhci"; + reg = <0x100 0x100>; + interrupts = <26>; + sdhci,auto-cmd12; + clocks = <&syscon ASPEED_CLK_SDIO>; + }; + + sdhci1: sdhci@200 { + compatible = "aspeed,ast2500-sdhci"; + reg = <0x200 0x100>; + interrupts = <26>; + sdhci,auto-cmd12; + clocks = <&syscon ASPEED_CLK_SDIO>; + }; + }; |