Message ID | 20220824035542.706433-3-nava.kishore.manne@amd.com (mailing list archive) |
---|---|
State | New |
Headers | show |
Series | Add afi config drivers support | expand |
On 24/08/2022 06:55, Nava kishore Manne wrote: > Xilinx Zynq US+ MPSoC platform connect the PS to the programmable > logic(PL) through the AXI port. This AXI port helps to establish Use subject prefixes matching the subsystem (git log --oneline -- ...). > the data path between the PS and PL. In-order to establish the proper > communication data path between PS and PL the AXI port data path should > be configured with the proper Bus-width values. > > This patch adds the binding document for the zynqmp afi config driver > to handle the AXI port bus-width configurations and PS-PL resets. Do not use "This commit/patch". https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95 > > Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com> > --- > .../bindings/fpga/xlnx,zynqmp-afi-fpga.yaml | 100 ++++++++++++++++++ > 1 file changed, 100 insertions(+) > create mode 100644 Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml > > diff --git a/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml > new file mode 100644 > index 000000000000..faae4951e991 > --- /dev/null > +++ b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml > @@ -0,0 +1,100 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/fpga/xlnx,zynqmp-afi-fpga.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Xilinx ZynqMP AFI interface Manager. > + > +maintainers: > + - Nava kishore Manne <nava.kishore.manne@amd.com> > + > +description: The Zynq UltraScale+ MPSoC Processing System core provides access > + from PL masters to PS internal peripherals, and memory through AXI FIFO > + interface(AFI) > + > +properties: > + compatible: > + items: No items, you have only one item. > + - enum: > + - xlnx,zynqmp-afi-fpga > + > + resets: > + description: > + A list of phandles for resets listed in reset-names. You need maxItems:4 > + > + reset-names: > + items: > + - const: pl0-rst > + - const: pl1-rst > + - const: pl2-rst > + - const: pl3-rst > + > +patternProperties: > + "^xlnx,afifm[0-6]-rd-bus-width$": > + description: bus width used to configure the afifm-rd interface. > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [ 32, 64, 128 ] > + > + "^xlnx,afifm[0-6]-wr-bus-width$": > + description: bus width used to configure the afifm-wr interface. > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [ 32, 64, 128 ] > + > + "^xlnx,afifs-ss[0-2]-bus-width$": > + description: bus width used to configure the afifs interface. > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [ 32, 64, 128 ] > + > +required: > + - compatible > + - xlnx,afifm0-rd-bus-width > + - xlnx,afifm1-rd-bus-width > + - xlnx,afifm2-rd-bus-width > + - xlnx,afifm3-rd-bus-width > + - xlnx,afifm4-rd-bus-width > + - xlnx,afifm5-rd-bus-width > + - xlnx,afifm6-rd-bus-width > + - xlnx,afifm0-wr-bus-width > + - xlnx,afifm1-wr-bus-width > + - xlnx,afifm2-wr-bus-width > + - xlnx,afifm3-wr-bus-width > + - xlnx,afifm4-wr-bus-width > + - xlnx,afifm5-wr-bus-width > + - xlnx,afifm6-wr-bus-width > + - xlnx,afifs-ss0-bus-width > + - xlnx,afifs-ss1-bus-width > + - xlnx,afifs-ss2-bus-width > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/reset/xlnx-zynqmp-resets.h> > + zynqmp-afi { Node names should be generic. https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation Best regards, Krzysztof
Hi Krzysztof, Please find my response inline. > -----Original Message----- > From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > Sent: Wednesday, August 24, 2022 6:29 PM > To: Manne, Nava kishore <nava.kishore.manne@amd.com>; git (AMD-Xilinx) > <git@amd.com>; robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; > michal.simek@xilinx.com; mdf@kernel.org; hao.wu@intel.com; > yilun.xu@intel.com; trix@redhat.com; p.zabel@pengutronix.de; > gregkh@linuxfoundation.org; ronak.jain@xilinx.com; rajan.vaja@xilinx.com; > abhyuday.godhasara@xilinx.com; piyush.mehta@xilinx.com; > lakshmi.sai.krishna.potthuri@xilinx.com; harsha.harsha@xilinx.com; > linus.walleij@linaro.org; nava.manne@xilinx.com; > devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux- > kernel@vger.kernel.org; linux-fpga@vger.kernel.org > Subject: Re: [PATCH 2/4] bindings: fpga: Add binding doc for the zynqmp afi > config driver > > On 24/08/2022 06:55, Nava kishore Manne wrote: > > Xilinx Zynq US+ MPSoC platform connect the PS to the programmable > > logic(PL) through the AXI port. This AXI port helps to establish > > Use subject prefixes matching the subsystem (git log --oneline -- ...). > Will fix in v2. > > the data path between the PS and PL. In-order to establish the proper > > communication data path between PS and PL the AXI port data path > > should be configured with the proper Bus-width values. > > > > This patch adds the binding document for the zynqmp afi config driver > > to handle the AXI port bus-width configurations and PS-PL resets. > > Do not use "This commit/patch". > https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/sub > mitting-patches.rst#L95 > Will fix in v2. > > > > Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com> > > --- > > .../bindings/fpga/xlnx,zynqmp-afi-fpga.yaml | 100 ++++++++++++++++++ > > 1 file changed, 100 insertions(+) > > create mode 100644 > > Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml > > > > diff --git > > a/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml > > b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml > > new file mode 100644 > > index 000000000000..faae4951e991 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi- > fpga.yaml > > @@ -0,0 +1,100 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/fpga/xlnx,zynqmp-afi-fpga.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Xilinx ZynqMP AFI interface Manager. > > + > > +maintainers: > > + - Nava kishore Manne <nava.kishore.manne@amd.com> > > + > > +description: The Zynq UltraScale+ MPSoC Processing System core > > +provides access > > + from PL masters to PS internal peripherals, and memory through AXI > > +FIFO > > + interface(AFI) > > + > > +properties: > > + compatible: > > + items: > > No items, you have only one item. > Will fix in v2. > > + - enum: > > + - xlnx,zynqmp-afi-fpga > > + > > + resets: > > + description: > > + A list of phandles for resets listed in reset-names. > > You need maxItems:4 > Will fix in v2. > > + > > + reset-names: > > + items: > > + - const: pl0-rst > > + - const: pl1-rst > > + - const: pl2-rst > > + - const: pl3-rst > > + > > +patternProperties: > > + "^xlnx,afifm[0-6]-rd-bus-width$": > > + description: bus width used to configure the afifm-rd interface. > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + enum: [ 32, 64, 128 ] > > + > > + "^xlnx,afifm[0-6]-wr-bus-width$": > > + description: bus width used to configure the afifm-wr interface. > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + enum: [ 32, 64, 128 ] > > + > > + "^xlnx,afifs-ss[0-2]-bus-width$": > > + description: bus width used to configure the afifs interface. > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + enum: [ 32, 64, 128 ] > > + > > +required: > > + - compatible > > + - xlnx,afifm0-rd-bus-width > > + - xlnx,afifm1-rd-bus-width > > + - xlnx,afifm2-rd-bus-width > > + - xlnx,afifm3-rd-bus-width > > + - xlnx,afifm4-rd-bus-width > > + - xlnx,afifm5-rd-bus-width > > + - xlnx,afifm6-rd-bus-width > > + - xlnx,afifm0-wr-bus-width > > + - xlnx,afifm1-wr-bus-width > > + - xlnx,afifm2-wr-bus-width > > + - xlnx,afifm3-wr-bus-width > > + - xlnx,afifm4-wr-bus-width > > + - xlnx,afifm5-wr-bus-width > > + - xlnx,afifm6-wr-bus-width > > + - xlnx,afifs-ss0-bus-width > > + - xlnx,afifs-ss1-bus-width > > + - xlnx,afifs-ss2-bus-width > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + #include <dt-bindings/reset/xlnx-zynqmp-resets.h> > > + zynqmp-afi { > > Node names should be generic. > https://devicetree-specification.readthedocs.io/en/latest/chapter2- > devicetree-basics.html#generic-names-recommendation > Will fix in v2. Regards, Navakishore.
On Wed, Aug 24, 2022 at 09:25:40AM +0530, Nava kishore Manne wrote: > Xilinx Zynq US+ MPSoC platform connect the PS to the programmable > logic(PL) through the AXI port. This AXI port helps to establish > the data path between the PS and PL. In-order to establish the proper > communication data path between PS and PL the AXI port data path should > be configured with the proper Bus-width values. > > This patch adds the binding document for the zynqmp afi config driver > to handle the AXI port bus-width configurations and PS-PL resets. > > Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com> > --- > .../bindings/fpga/xlnx,zynqmp-afi-fpga.yaml | 100 ++++++++++++++++++ > 1 file changed, 100 insertions(+) > create mode 100644 Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml > > diff --git a/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml > new file mode 100644 > index 000000000000..faae4951e991 > --- /dev/null > +++ b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml > @@ -0,0 +1,100 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/fpga/xlnx,zynqmp-afi-fpga.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Xilinx ZynqMP AFI interface Manager. > + > +maintainers: > + - Nava kishore Manne <nava.kishore.manne@amd.com> > + > +description: The Zynq UltraScale+ MPSoC Processing System core provides access > + from PL masters to PS internal peripherals, and memory through AXI FIFO > + interface(AFI) > + > +properties: > + compatible: > + items: > + - enum: > + - xlnx,zynqmp-afi-fpga > + > + resets: > + description: > + A list of phandles for resets listed in reset-names. > + > + reset-names: > + items: > + - const: pl0-rst > + - const: pl1-rst > + - const: pl2-rst > + - const: pl3-rst Not all that useful of names given it is just indices. Minimally, '-rst' is redundant and I don't know what 'pl' means. > + > +patternProperties: > + "^xlnx,afifm[0-6]-rd-bus-width$": > + description: bus width used to configure the afifm-rd interface. ...width in bits... > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [ 32, 64, 128 ] > + > + "^xlnx,afifm[0-6]-wr-bus-width$": Can combine these 2: "^xlnx,afifm[0-6]-(wr|rd)-bus-width$" > + description: bus width used to configure the afifm-wr interface. > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [ 32, 64, 128 ] > + > + "^xlnx,afifs-ss[0-2]-bus-width$": > + description: bus width used to configure the afifs interface. > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [ 32, 64, 128 ] > + > +required: > + - compatible > + - xlnx,afifm0-rd-bus-width > + - xlnx,afifm1-rd-bus-width > + - xlnx,afifm2-rd-bus-width > + - xlnx,afifm3-rd-bus-width > + - xlnx,afifm4-rd-bus-width > + - xlnx,afifm5-rd-bus-width > + - xlnx,afifm6-rd-bus-width > + - xlnx,afifm0-wr-bus-width > + - xlnx,afifm1-wr-bus-width > + - xlnx,afifm2-wr-bus-width > + - xlnx,afifm3-wr-bus-width > + - xlnx,afifm4-wr-bus-width > + - xlnx,afifm5-wr-bus-width > + - xlnx,afifm6-wr-bus-width > + - xlnx,afifs-ss0-bus-width > + - xlnx,afifs-ss1-bus-width > + - xlnx,afifs-ss2-bus-width > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/reset/xlnx-zynqmp-resets.h> > + zynqmp-afi { > + compatible = "xlnx,zynqmp-afi-fpga"; > + xlnx,afifm0-rd-bus-width = <32>; > + xlnx,afifm1-rd-bus-width = <32>; > + xlnx,afifm2-rd-bus-width = <64>; > + xlnx,afifm3-rd-bus-width = <128>; > + xlnx,afifm4-rd-bus-width = <32>; > + xlnx,afifm5-rd-bus-width = <64>; > + xlnx,afifm6-rd-bus-width = <128>; > + xlnx,afifm0-wr-bus-width = <32>; > + xlnx,afifm1-wr-bus-width = <32>; > + xlnx,afifm2-wr-bus-width = <64>; > + xlnx,afifm3-wr-bus-width = <128>; > + xlnx,afifm4-wr-bus-width = <32>; > + xlnx,afifm5-wr-bus-width = <64>; > + xlnx,afifm6-wr-bus-width = <128>; > + xlnx,afifs-ss0-bus-width = <64>; > + xlnx,afifs-ss1-bus-width = <64>; > + xlnx,afifs-ss2-bus-width = <64>; > + resets = <&zynqmp_reset ZYNQMP_RESET_PS_PL0>, > + <&zynqmp_reset ZYNQMP_RESET_PS_PL1>, > + <&zynqmp_reset ZYNQMP_RESET_PS_PL2>, > + <&zynqmp_reset ZYNQMP_RESET_PS_PL3>; > + reset-names = "pl0-rst", "pl1-rst", "pl2-rst", "pl3-rst"; Should devices on this bus be child devices or do they fit on some other bus? > + }; > + > +... > -- > 2.25.1 > >
On Tue, Aug 30, 2022 at 05:31:07AM +0000, Manne, Nava kishore wrote: > Hi Krzysztof, > > Please find my response inline. > > > -----Original Message----- > > From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > > Sent: Wednesday, August 24, 2022 6:29 PM > > To: Manne, Nava kishore <nava.kishore.manne@amd.com>; git (AMD-Xilinx) > > <git@amd.com>; robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; > > michal.simek@xilinx.com; mdf@kernel.org; hao.wu@intel.com; > > yilun.xu@intel.com; trix@redhat.com; p.zabel@pengutronix.de; > > gregkh@linuxfoundation.org; ronak.jain@xilinx.com; rajan.vaja@xilinx.com; > > abhyuday.godhasara@xilinx.com; piyush.mehta@xilinx.com; > > lakshmi.sai.krishna.potthuri@xilinx.com; harsha.harsha@xilinx.com; > > linus.walleij@linaro.org; nava.manne@xilinx.com; > > devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux- > > kernel@vger.kernel.org; linux-fpga@vger.kernel.org > > Subject: Re: [PATCH 2/4] bindings: fpga: Add binding doc for the zynqmp afi > > config driver > > > > On 24/08/2022 06:55, Nava kishore Manne wrote: > > > Xilinx Zynq US+ MPSoC platform connect the PS to the programmable > > > logic(PL) through the AXI port. This AXI port helps to establish > > > > Use subject prefixes matching the subsystem (git log --oneline -- ...). > > > > Will fix in v2. This is what we assume. No need to reply back with agreement, and save us some mail to read. Rob
diff --git a/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml new file mode 100644 index 000000000000..faae4951e991 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/fpga/xlnx,zynqmp-afi-fpga.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx ZynqMP AFI interface Manager. + +maintainers: + - Nava kishore Manne <nava.kishore.manne@amd.com> + +description: The Zynq UltraScale+ MPSoC Processing System core provides access + from PL masters to PS internal peripherals, and memory through AXI FIFO + interface(AFI) + +properties: + compatible: + items: + - enum: + - xlnx,zynqmp-afi-fpga + + resets: + description: + A list of phandles for resets listed in reset-names. + + reset-names: + items: + - const: pl0-rst + - const: pl1-rst + - const: pl2-rst + - const: pl3-rst + +patternProperties: + "^xlnx,afifm[0-6]-rd-bus-width$": + description: bus width used to configure the afifm-rd interface. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 32, 64, 128 ] + + "^xlnx,afifm[0-6]-wr-bus-width$": + description: bus width used to configure the afifm-wr interface. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 32, 64, 128 ] + + "^xlnx,afifs-ss[0-2]-bus-width$": + description: bus width used to configure the afifs interface. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 32, 64, 128 ] + +required: + - compatible + - xlnx,afifm0-rd-bus-width + - xlnx,afifm1-rd-bus-width + - xlnx,afifm2-rd-bus-width + - xlnx,afifm3-rd-bus-width + - xlnx,afifm4-rd-bus-width + - xlnx,afifm5-rd-bus-width + - xlnx,afifm6-rd-bus-width + - xlnx,afifm0-wr-bus-width + - xlnx,afifm1-wr-bus-width + - xlnx,afifm2-wr-bus-width + - xlnx,afifm3-wr-bus-width + - xlnx,afifm4-wr-bus-width + - xlnx,afifm5-wr-bus-width + - xlnx,afifm6-wr-bus-width + - xlnx,afifs-ss0-bus-width + - xlnx,afifs-ss1-bus-width + - xlnx,afifs-ss2-bus-width + +additionalProperties: false + +examples: + - | + #include <dt-bindings/reset/xlnx-zynqmp-resets.h> + zynqmp-afi { + compatible = "xlnx,zynqmp-afi-fpga"; + xlnx,afifm0-rd-bus-width = <32>; + xlnx,afifm1-rd-bus-width = <32>; + xlnx,afifm2-rd-bus-width = <64>; + xlnx,afifm3-rd-bus-width = <128>; + xlnx,afifm4-rd-bus-width = <32>; + xlnx,afifm5-rd-bus-width = <64>; + xlnx,afifm6-rd-bus-width = <128>; + xlnx,afifm0-wr-bus-width = <32>; + xlnx,afifm1-wr-bus-width = <32>; + xlnx,afifm2-wr-bus-width = <64>; + xlnx,afifm3-wr-bus-width = <128>; + xlnx,afifm4-wr-bus-width = <32>; + xlnx,afifm5-wr-bus-width = <64>; + xlnx,afifm6-wr-bus-width = <128>; + xlnx,afifs-ss0-bus-width = <64>; + xlnx,afifs-ss1-bus-width = <64>; + xlnx,afifs-ss2-bus-width = <64>; + resets = <&zynqmp_reset ZYNQMP_RESET_PS_PL0>, + <&zynqmp_reset ZYNQMP_RESET_PS_PL1>, + <&zynqmp_reset ZYNQMP_RESET_PS_PL2>, + <&zynqmp_reset ZYNQMP_RESET_PS_PL3>; + reset-names = "pl0-rst", "pl1-rst", "pl2-rst", "pl3-rst"; + }; + +...
Xilinx Zynq US+ MPSoC platform connect the PS to the programmable logic(PL) through the AXI port. This AXI port helps to establish the data path between the PS and PL. In-order to establish the proper communication data path between PS and PL the AXI port data path should be configured with the proper Bus-width values. This patch adds the binding document for the zynqmp afi config driver to handle the AXI port bus-width configurations and PS-PL resets. Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com> --- .../bindings/fpga/xlnx,zynqmp-afi-fpga.yaml | 100 ++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 Documentation/devicetree/bindings/fpga/xlnx,zynqmp-afi-fpga.yaml