| Message ID | 20210728090242.2758812-5-linus.walleij@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | Update and rewrite IXP4xx PATA driver | expand |
On Wed, Jul 28, 2021 at 11:02:41AM +0200, Linus Walleij wrote: > This adds device tree bindings for the Intel IXP4xx compact flash card > interface. > > Cc: devicetree@vger.kernel.org > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > .../ata/intel,ixp4xx-compact-flash.yaml | 62 +++++++++++++++++++ > 1 file changed, 62 insertions(+) > create mode 100644 Documentation/devicetree/bindings/ata/intel,ixp4xx-compact-flash.yaml > > diff --git a/Documentation/devicetree/bindings/ata/intel,ixp4xx-compact-flash.yaml b/Documentation/devicetree/bindings/ata/intel,ixp4xx-compact-flash.yaml > new file mode 100644 > index 000000000000..b254be858de6 > --- /dev/null > +++ b/Documentation/devicetree/bindings/ata/intel,ixp4xx-compact-flash.yaml > @@ -0,0 +1,62 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/ata/intel,ixp4xx-compact-flash.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Intel IXP4xx CompactFlash Card Controller > + > +maintainers: > + - Linus Walleij <linus.walleij@linaro.org> > + > +description: | > + The IXP4xx network processors have a CompactFlash interface that presents > + a CompactFlash card to the system as a true IDE (parallell ATA) device. The typo. (you can setup checkpatch.pl to do spell checking) > + device is always connected to the expansion bus of the IXP4xx SoCs using one > + or two chip select areas and address translating logic on the board. The > + node must be placed inside a chip select node on the IXP4xx expansion bus. > + > +properties: > + compatible: > + const: intel,ixp4xx-compact-flash > + > + reg: > + minItems: 2 > + maxItems: 2 What is each entry? > + > + interrupts: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - interrupts > + > +allOf: > + - $ref: pata-common.yaml# > + > +unevaluatedProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/irq.h> > + > + bus@c4000000 { > + compatible = "intel,ixp43x-expansion-bus-controller", "syscon"; > + reg = <0xc4000000 0x1000>; > + native-endian; > + #address-cells = <2>; > + #size-cells = <1>; > + ranges = <0 0x0 0x50000000 0x01000000>, <1 0x0 0x51000000 0x01000000>; > + dma-ranges = <0 0x0 0x50000000 0x01000000>, <1 0x0 0x51000000 0x01000000>; > + ide@1,0 { > + compatible = "intel,ixp4xx-compact-flash"; > + intel,ixp4xx-eb-t1 = <3>; > + intel,ixp4xx-eb-t2 = <3>; Can you omit these? Otherwise, this will start failing soon as unevaluatedProperties is implemented (I have a test branch). Or you need to handle child node properties as discussed. > + reg = <1 0x00000000 0x1000>, <1 0x00040000 0x1000>; > + interrupt-parent = <&gpio0>; > + interrupts = <12 IRQ_TYPE_EDGE_RISING>; > + }; > + }; > + > +... > -- > 2.31.1 > >
diff --git a/Documentation/devicetree/bindings/ata/intel,ixp4xx-compact-flash.yaml b/Documentation/devicetree/bindings/ata/intel,ixp4xx-compact-flash.yaml new file mode 100644 index 000000000000..b254be858de6 --- /dev/null +++ b/Documentation/devicetree/bindings/ata/intel,ixp4xx-compact-flash.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/ata/intel,ixp4xx-compact-flash.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Intel IXP4xx CompactFlash Card Controller + +maintainers: + - Linus Walleij <linus.walleij@linaro.org> + +description: | + The IXP4xx network processors have a CompactFlash interface that presents + a CompactFlash card to the system as a true IDE (parallell ATA) device. The + device is always connected to the expansion bus of the IXP4xx SoCs using one + or two chip select areas and address translating logic on the board. The + node must be placed inside a chip select node on the IXP4xx expansion bus. + +properties: + compatible: + const: intel,ixp4xx-compact-flash + + reg: + minItems: 2 + maxItems: 2 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + +allOf: + - $ref: pata-common.yaml# + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + bus@c4000000 { + compatible = "intel,ixp43x-expansion-bus-controller", "syscon"; + reg = <0xc4000000 0x1000>; + native-endian; + #address-cells = <2>; + #size-cells = <1>; + ranges = <0 0x0 0x50000000 0x01000000>, <1 0x0 0x51000000 0x01000000>; + dma-ranges = <0 0x0 0x50000000 0x01000000>, <1 0x0 0x51000000 0x01000000>; + ide@1,0 { + compatible = "intel,ixp4xx-compact-flash"; + intel,ixp4xx-eb-t1 = <3>; + intel,ixp4xx-eb-t2 = <3>; + reg = <1 0x00000000 0x1000>, <1 0x00040000 0x1000>; + interrupt-parent = <&gpio0>; + interrupts = <12 IRQ_TYPE_EDGE_RISING>; + }; + }; + +...
This adds device tree bindings for the Intel IXP4xx compact flash card interface. Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- .../ata/intel,ixp4xx-compact-flash.yaml | 62 +++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/ata/intel,ixp4xx-compact-flash.yaml