On Tue, Jul 30, 2019 at 12:23 AM Andrew Jeffery <andrew@xxxxxxxx> wrote: > > 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. > > Signed-off-by: Andrew Jeffery <andrew@xxxxxxxx> > > --- > v3: > * Fix compatible enums > * Add AST2600 compatibles > * Describe #address-cells / #size-cells > --- > .../devicetree/bindings/mmc/aspeed,sdhci.yaml | 100 ++++++++++++++++++ > 1 file changed, 100 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml > > diff --git a/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml b/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml > new file mode 100644 > index 000000000000..dd2a00c59641 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml > @@ -0,0 +1,100 @@ > +# SPDX-License-Identifier: GPL-2.0-or-later > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mmc/aspeed,sdhci.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: ASPEED SD/SDIO/eMMC Controller > + > +maintainers: > + - Andrew Jeffery <andrew@xxxxxxxx> > + - Ryan Chen <ryanchen.aspeed@xxxxxxxxx> > + > +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]+$": This should probably have: allOf: - $ref: mmc-controller.yaml Another new thing in 5.3. :) > + type: object > + 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 > + 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 0x10000>; > + clocks = <&syscon ASPEED_CLK_GATE_SDCLK>; > + > + sdhci0: sdhci@100 { > + compatible = "aspeed,ast2500-sdhci"; > + reg = <0x100 0x100>; > + interrupts = <26>; > + sdhci,auto-cmd12; Not documented. Maybe should be common, but there's only a few users. > + 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>; > + }; > + }; > -- > 2.20.1 >
