| Message ID | 768d2307342e1054c58324a9d51957456dc82cbf.1730123575.git.andrea.porta@suse.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for RaspberryPi RP1 PCI device using a DT overlay | expand |
Hi Manivannan, On 14:50 Wed 06 Nov , Manivannan Sadhasivam wrote: > On Mon, Oct 28, 2024 at 03:07:21PM +0100, Andrea della Porta wrote: > > The RP1 is a MFD that exposes its peripherals through PCI BARs. This > > schema is intended as minimal support for the clock generator and > > gpio controller peripherals which are accessible through BAR1. > > > > Signed-off-by: Andrea della Porta <andrea.porta@suse.com> > > --- > > .../devicetree/bindings/misc/pci1de4,1.yaml | 80 +++++++++++++++++++ > > MAINTAINERS | 1 + > > 2 files changed, 81 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/misc/pci1de4,1.yaml > > > > diff --git a/Documentation/devicetree/bindings/misc/pci1de4,1.yaml b/Documentation/devicetree/bindings/misc/pci1de4,1.yaml > > new file mode 100644 > > index 000000000000..d66b2fc130d1 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/misc/pci1de4,1.yaml > > @@ -0,0 +1,80 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/misc/pci1de4,1.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: RaspberryPi RP1 MFD PCI device > > + > > +maintainers: > > + - Andrea della Porta <andrea.porta@suse.com> > > + > > +description: > > + The RaspberryPi RP1 is a PCI multi function device containing > > + peripherals ranging from Ethernet to USB controller, I2C, SPI > > + and others. > > + The peripherals are accessed by addressing the PCI BAR1 region. > > + > > +allOf: > > + - $ref: /schemas/pci/pci-ep-bus.yaml > > + > > +properties: > > + compatible: > > + additionalItems: true > > + maxItems: 3 > > + items: > > + - const: pci1de4,1 > > + > > + '#interrupt-cells': > > + const: 2 > > + description: > > + Specifies respectively the interrupt number and flags as defined > > + in include/dt-bindings/interrupt-controller/irq.h. > > + > > + interrupt-controller: true > > + > > +unevaluatedProperties: false > > + > > +required: > > + - compatible > > + - '#interrupt-cells' > > + - interrupt-controller > > + - pci-ep-bus@1 > > + > > +examples: > > + - | > > + pci { > > + #address-cells = <3>; > > + #size-cells = <2>; > > + > > + rp1@0,0 { > > + compatible = "pci1de4,1"; > > + ranges = <0x01 0x00 0x00000000 > > + 0x82010000 0x00 0x00 > > + 0x00 0x400000>; > > Could you please have the 'ranges' in a single line as used everywhere? > > - Mani Sure. Many thanks, Andrea > > > + #address-cells = <3>; > > + #size-cells = <2>; > > + interrupt-controller; > > + #interrupt-cells = <2>; > > + > > + pci_ep_bus: pci-ep-bus@1 { > > + compatible = "simple-bus"; > > + ranges = <0xc0 0x40000000 > > + 0x01 0x00 0x00000000 > > + 0x00 0x00400000>; > > + dma-ranges = <0x10 0x00000000 > > + 0x43000000 0x10 0x00000000 > > + 0x10 0x00000000>; > > + #address-cells = <2>; > > + #size-cells = <2>; > > + > > + rp1_clocks: clocks@c040018000 { > > + compatible = "raspberrypi,rp1-clocks"; > > + reg = <0xc0 0x40018000 0x0 0x10038>; > > + #clock-cells = <1>; > > + clocks = <&clk_rp1_xosc>; > > + clock-names = "xosc"; > > + }; > > + }; > > + }; > > + }; > > diff --git a/MAINTAINERS b/MAINTAINERS > > index ccf123b805c8..2aea5a6166bd 100644 > > --- a/MAINTAINERS > > +++ b/MAINTAINERS > > @@ -19384,6 +19384,7 @@ RASPBERRY PI RP1 PCI DRIVER > > M: Andrea della Porta <andrea.porta@suse.com> > > S: Maintained > > F: Documentation/devicetree/bindings/clock/raspberrypi,rp1-clocks.yaml > > +F: Documentation/devicetree/bindings/misc/pci1de4,1.yaml > > F: Documentation/devicetree/bindings/pci/pci-ep-bus.yaml > > F: Documentation/devicetree/bindings/pinctrl/raspberrypi,rp1-gpio.yaml > > F: include/dt-bindings/clock/rp1.h > > -- > > 2.35.3 > > > > -- > மணிவண்ணன் சதாசிவம்
diff --git a/Documentation/devicetree/bindings/misc/pci1de4,1.yaml b/Documentation/devicetree/bindings/misc/pci1de4,1.yaml new file mode 100644 index 000000000000..d66b2fc130d1 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/pci1de4,1.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/misc/pci1de4,1.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: RaspberryPi RP1 MFD PCI device + +maintainers: + - Andrea della Porta <andrea.porta@suse.com> + +description: + The RaspberryPi RP1 is a PCI multi function device containing + peripherals ranging from Ethernet to USB controller, I2C, SPI + and others. + The peripherals are accessed by addressing the PCI BAR1 region. + +allOf: + - $ref: /schemas/pci/pci-ep-bus.yaml + +properties: + compatible: + additionalItems: true + maxItems: 3 + items: + - const: pci1de4,1 + + '#interrupt-cells': + const: 2 + description: + Specifies respectively the interrupt number and flags as defined + in include/dt-bindings/interrupt-controller/irq.h. + + interrupt-controller: true + +unevaluatedProperties: false + +required: + - compatible + - '#interrupt-cells' + - interrupt-controller + - pci-ep-bus@1 + +examples: + - | + pci { + #address-cells = <3>; + #size-cells = <2>; + + rp1@0,0 { + compatible = "pci1de4,1"; + ranges = <0x01 0x00 0x00000000 + 0x82010000 0x00 0x00 + 0x00 0x400000>; + #address-cells = <3>; + #size-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + + pci_ep_bus: pci-ep-bus@1 { + compatible = "simple-bus"; + ranges = <0xc0 0x40000000 + 0x01 0x00 0x00000000 + 0x00 0x00400000>; + dma-ranges = <0x10 0x00000000 + 0x43000000 0x10 0x00000000 + 0x10 0x00000000>; + #address-cells = <2>; + #size-cells = <2>; + + rp1_clocks: clocks@c040018000 { + compatible = "raspberrypi,rp1-clocks"; + reg = <0xc0 0x40018000 0x0 0x10038>; + #clock-cells = <1>; + clocks = <&clk_rp1_xosc>; + clock-names = "xosc"; + }; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index ccf123b805c8..2aea5a6166bd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19384,6 +19384,7 @@ RASPBERRY PI RP1 PCI DRIVER M: Andrea della Porta <andrea.porta@suse.com> S: Maintained F: Documentation/devicetree/bindings/clock/raspberrypi,rp1-clocks.yaml +F: Documentation/devicetree/bindings/misc/pci1de4,1.yaml F: Documentation/devicetree/bindings/pci/pci-ep-bus.yaml F: Documentation/devicetree/bindings/pinctrl/raspberrypi,rp1-gpio.yaml F: include/dt-bindings/clock/rp1.h
The RP1 is a MFD that exposes its peripherals through PCI BARs. This schema is intended as minimal support for the clock generator and gpio controller peripherals which are accessible through BAR1. Signed-off-by: Andrea della Porta <andrea.porta@suse.com> --- .../devicetree/bindings/misc/pci1de4,1.yaml | 80 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 81 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/pci1de4,1.yaml