On Mon, Jan 03, 2022 at 08:47:27AM +0100, Alain Volmat wrote: > Addition of the bindings for the Designware based PCIe controller > that can be found on STi platforms such as STiH407, STiH410 or STiH418. > > Signed-off-by: Alain Volmat <avolmat@xxxxxx> > --- > .../devicetree/bindings/pci/snps,dw-pcie.yaml | 2 +- > .../devicetree/bindings/pci/st,st-pcie.yaml | 112 ++++++++++++++++++ > 2 files changed, 113 insertions(+), 1 deletion(-) > create mode 100644 Documentation/devicetree/bindings/pci/st,st-pcie.yaml > > diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml > index 9ed0dfba7f89..3a92078128f7 100644 > --- a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml > +++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml > @@ -35,7 +35,7 @@ properties: > maxItems: 5 > items: > enum: [ dbi, dbi2, config, atu, app, elbi, mgmt, ctrl, parf, cfg, link, > - ulreg, smu, mpu, apb, phy ] > + ulreg, smu, mpu, apb, phy, mem-window ] > > num-lanes: > description: | > diff --git a/Documentation/devicetree/bindings/pci/st,st-pcie.yaml b/Documentation/devicetree/bindings/pci/st,st-pcie.yaml > new file mode 100644 > index 000000000000..2fa686d573c3 > --- /dev/null > +++ b/Documentation/devicetree/bindings/pci/st,st-pcie.yaml > @@ -0,0 +1,112 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/pci/st,st-pcie.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: PCIe RC controller on ST STi platform > + > +maintainers: > + - Alain Volmat <avolmat@xxxxxx> > + > +allOf: > + - $ref: /schemas/pci/snps,dw-pcie.yaml# > + > +properties: > + compatible: > + const: st,stih407-pcie > + > + reg: > + items: > + - description: Controller control and status registers. > + - description: PCIe configuration registers. > + - description: Memory made available to the controller > + > + reg-names: > + items: > + - const: dbi > + - const: config > + - const: mem-window I guess "mem-window" is the range for inbound DMA? Other controllers should have similar ranges. Can we use the same DT reg names used by other controllers instead of adding something new and STi-specific? > + interrupts: > + maxItems: 1 > + > + resets: > + items: > + - description: Controller reset > + - description: Powerdown reset (optional) > + minItems: 1 > + > + reset-names: > + items: > + - const: softreset > + - const: powerdown "softreset" and "powerdown" appear only in this binding. Are they really unique to STi, or can we use the same names used for other controllers?
