On 01/06/2023 01:49, Chris Packham wrote: > From: Vadym Kochan <vadym.kochan@xxxxxxxxxxx> > > Switch the DT binding to a YAML schema to enable the DT validation. > > The text binding didn't mention it as a requirement but existing usage > has > > compatible = "marvell,armada-8k-nand-controller", > "marvell,armada370-nand-controller"; > > so the YAML allows this in addition to the individual compatible values. > > There was also an incorrect reference to dma-names being "rxtx" where > the driver and existing device trees actually use dma-names = "data" so > this is corrected in the conversion. > > Signed-off-by: Vadym Kochan <vadym.kochan@xxxxxxxxxxx> > Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx> > --- > > Notes: > Changes in v8: > - Mark deprecated compatible values as such > - Allow "marvell,armada-8k-nand-controller" without > "marvell,armada370-nand-controller" > - Make dma-names usage reflect reality > - Update commit message > > Changes in v7: > - Restore "label" and "partitions" properties (should be picked up via > nand-controller.yaml but aren't) What do you mean by "aren't"? They are not needed. > - Add/restore nand-on-flash-bbt and nand-ecc-mode which aren't covered > by nand-controller.yaml. > - Use "unevalautedProperties: false" > - Corrections for clock-names, dma-names, nand-rb and nand-ecc-strength > - Add pxa3xx-nand-controller example > > Changes in v6: > - remove properties covered by nand-controller.yaml > - add example using armada-8k compatible > > earlier changes: > > v5: > 1) Get back "label" and "partitions" properties but without > ref to the "partition.yaml" which was wrongly used. > > 2) Add "additionalProperties: false" for nand@ because all possible > properties are described. > > v4: > 1) Remove "label" and "partitions" properties > > 2) Use 2 clocks for A7K/8K platform which is a requirement > > v3: > 1) Remove txt version from the MAINTAINERS list > > 2) Use enum for some of compatible strings > > 3) Drop: > #address-cells > #size-cells: > > as they are inherited from the nand-controller.yaml > > 4) Add restriction to use 2 clocks for A8K SoC > > 5) Dropped description for clock-names and extend it with > minItems: 1 > > 6) Drop description for "dmas" > > 7) Use "unevalautedProperties: false" > > 8) Drop quites from yaml refs. > > 9) Use 4-space indentation for the example section > > v2: > 1) Fixed warning by yamllint with incorrect indentation for compatible list > > .../bindings/mtd/marvell,nand-controller.yaml | 223 ++++++++++++++++++ > .../devicetree/bindings/mtd/marvell-nand.txt | 126 ---------- > MAINTAINERS | 1 - > 3 files changed, 223 insertions(+), 127 deletions(-) > create mode 100644 Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml > delete mode 100644 Documentation/devicetree/bindings/mtd/marvell-nand.txt > > diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml > new file mode 100644 > index 000000000000..433feb430555 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml > @@ -0,0 +1,223 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Marvell NAND Flash Controller (NFC) > + > +maintainers: > + - Miquel Raynal <miquel.raynal@xxxxxxxxxxx> > + > +properties: > + compatible: > + oneOf: > + - items: > + - const: marvell,armada-8k-nand-controller > + - const: marvell,armada370-nand-controller > + - enum: > + - marvell,armada-8k-nand-controller > + - marvell,armada370-nand-controller > + - marvell,pxa3xx-nand-controller > + - description: legacy bindings > + deprecated: true > + enum: > + - marvell,armada-8k-nand > + - marvell,armada370-nand > + - marvell,pxa3xx-nand > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + clocks: > + description: > + Shall reference the NAND controller clocks, the second one is > + is only needed for the Armada 7K/8K SoCs > + minItems: 1 > + maxItems: 2 > + > + clock-names: > + minItems: 1 > + items: > + - const: core > + - const: reg > + > + dmas: > + maxItems: 1 > + > + dma-names: > + items: > + - const: data > + > + marvell,system-controller: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: Syscon node that handles NAND controller related registers > + > +patternProperties: > + "^nand@[0-3]$": > + type: object > + unevaluatedProperties: false > + properties: > + reg: > + minimum: 0 > + maximum: 3 > + > + nand-rb: > + minItems: 1 Drop minItems. > + maxItems: 1 Didn't you have here minimum and maximum? I think I did not ask to remove them. > + > + nand-ecc-step-size: > + const: 512 > + > + nand-ecc-strength: > + enum: [1, 4, 8, 12, 16] > + > + nand-on-flash-bbt: > + $ref: /schemas/types.yaml#/definitions/flag > + > + nand-ecc-mode: > + const: hw > + > + label: > + $ref: /schemas/types.yaml#/definitions/string Drop label > + > + partitions: > + type: object Drop partitions. > + > + marvell,nand-keep-config: > + description: | > + Orders the driver not to take the timings from the core and > + leaving them completely untouched. Bootloader timings will then > + be used. > + $ref: /schemas/types.yaml#/definitions/flag > + > + marvell,nand-enable-arbiter: > + description: | > + To enable the arbiter, all boards blindly used it, > + this bit was set by the bootloader for many boards and even if > + it is marked reserved in several datasheets, it might be needed to set > + it (otherwise it is harmless). > + $ref: /schemas/types.yaml#/definitions/flag > + deprecated: true > + > + additionalProperties: false unevaluatedProperties: false > + > + required: > + - reg > + - nand-rb > + required: block goes here > +allOf: > + - $ref: nand-controller.yaml > + > + - if: > + properties: > + compatible: > + contains: > + const: marvell,pxa3xx-nand-controller > + then: > + required: > + - dmas > + - dma-names > + > + - if: > + properties: > + compatible: > + contains: > + const: marvell,armada-8k-nand-controller > + then: > + properties: > + clocks: > + minItems: 2 > + > + clock-names: > + minItems: 2 > + > + required: > + - marvell,system-controller > + Best regards, Krzysztof
