On Wed, 2 Mar 2022 at 17:31, Cédric Le Goater <clg@xxxxxxxx> wrote: > > The "interrupt" property is optional because it is only necessary for > controllers supporting DMAs (Not implemented yet in the new driver). > > Cc: Chin-Ting Kuo <chin-ting_kuo@xxxxxxxxxxxxxx> > Signed-off-by: Cédric Le Goater <clg@xxxxxxxx> Reviewed-by: Joel Stanley <joel@xxxxxxxxx> > --- > .../bindings/spi/aspeed,ast2600-fmc.yaml | 90 +++++++++++++++++++ > MAINTAINERS | 9 ++ > 2 files changed, 99 insertions(+) > create mode 100644 Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml > > diff --git a/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml b/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml > new file mode 100644 > index 000000000000..0289a4f52196 > --- /dev/null > +++ b/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml > @@ -0,0 +1,90 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/spi/aspeed,ast2600-fmc.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Aspeed SMC controllers bindings > + > +maintainers: > + - Chin-Ting Kuo <chin-ting_kuo@xxxxxxxxxxxxxx> > + - Cédric Le Goater <clg@xxxxxxxx> > + > +description: | > + This binding describes the Aspeed Static Memory Controllers (FMC and > + SPI) of the AST2400, AST2500 and AST2600 SOCs. > + > +allOf: > + - $ref: "spi-controller.yaml#" > + > +properties: > + compatible: > + enum: > + - aspeed,ast2600-fmc > + - aspeed,ast2600-spi > + - aspeed,ast2500-fmc > + - aspeed,ast2500-spi > + - aspeed,ast2400-fmc > + - aspeed,ast2400-spi > + > + reg: > + items: > + - description: registers > + - description: memory mapping > + > + clocks: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > +patternProperties: > + "@[0-9a-f]+": > + type: object > + > + properties: > + spi-rx-bus-width: > + enum: [1, 2, 4] > + > + required: > + - reg > + > +required: > + - compatible > + - reg > + - clocks > + > +unevaluatedProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + #include <dt-bindings/interrupt-controller/aspeed-scu-ic.h> > + #include <dt-bindings/clock/ast2600-clock.h> > + > + spi@1e620000 { > + reg = <0x1e620000 0xc4>, <0x20000000 0x10000000>; > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "aspeed,ast2600-fmc"; > + clocks = <&syscon ASPEED_CLK_AHB>; > + interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>; > + flash@0 { > + reg = < 0 >; > + compatible = "jedec,spi-nor"; > + spi-max-frequency = <50000000>; > + spi-rx-bus-width = <2>; > + }; > + flash@1 { > + reg = < 1 >; > + compatible = "jedec,spi-nor"; > + spi-max-frequency = <50000000>; > + spi-rx-bus-width = <2>; > + }; > + flash@2 { > + reg = < 2 >; > + compatible = "jedec,spi-nor"; > + spi-max-frequency = <50000000>; > + spi-rx-bus-width = <2>; > + }; > + }; > diff --git a/MAINTAINERS b/MAINTAINERS > index 4175103e928d..f5ab77548ef6 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -2925,6 +2925,15 @@ S: Maintained > F: Documentation/devicetree/bindings/mmc/aspeed,sdhci.yaml > F: drivers/mmc/host/sdhci-of-aspeed* > > +ASPEED SMC SPI DRIVER > +M: Chin-Ting Kuo <chin-ting_kuo@xxxxxxxxxxxxxx> > +M: Cédric Le Goater <clg@xxxxxxxx> > +L: linux-aspeed@xxxxxxxxxxxxxxxx (moderated for non-subscribers) > +L: openbmc@xxxxxxxxxxxxxxxx (moderated for non-subscribers) > +L: linux-spi@xxxxxxxxxxxxxxx > +S: Maintained > +F: Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml > + > ASPEED VIDEO ENGINE DRIVER > M: Eddie James <eajames@xxxxxxxxxxxxx> > L: linux-media@xxxxxxxxxxxxxxx > -- > 2.34.1 >
