| Message ID | 3869498c995cbb123127122f429e90de0a3f4014.1706531104.git.michal.simek@amd.com |
|---|---|
| State | New |
| Headers | show |
| Series | dt-bindings: firmware: xilinx: Describe soc-vvmem subnode | expand |
On 1/29/24 17:57, Conor Dooley wrote: > On Mon, Jan 29, 2024 at 01:25:06PM +0100, Michal Simek wrote: >> Describe soc-nvmem subnode as the part of firmware node. The name can't be >> pure nvmem because dt-schema already defines it as array property that's >> why different name should be used. >> >> Signed-off-by: Michal Simek <michal.simek@amd.com> >> --- >> >> Dt binding for nvmem node has been already merged and it is the part of >> linux-next tree. >> Here is the reference to it just in case: >> https://lore.kernel.org/r/170635581622.41421.8980881999042944764.b4-ty@linaro.org >> >> --- >> .../bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml | 9 +++++++++ >> 1 file changed, 9 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml >> index 7586fbff7ad6..108772ef574f 100644 >> --- a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml >> +++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml >> @@ -62,6 +62,12 @@ properties: >> interface. >> type: object >> >> + soc-nvmem: >> + $ref: /schemas/nvmem/xlnx,zynqmp-nvmem.yaml# >> + description: The ZynqMP MPSoC provides access to the hardware related data >> + like SOC revision, IDCODE and specific purpose efuses. >> + type: object >> + >> pcap: >> $ref: /schemas/fpga/xlnx,zynqmp-pcap-fpga.yaml >> description: The ZynqMP SoC uses the PCAP (Processor Configuration Port) to >> @@ -110,6 +116,9 @@ examples: >> firmware { >> zynqmp_firmware: zynqmp-firmware { >> #power-domain-cells = <1>; >> + soc-nvmem { >> + compatible = "xlnx,zynqmp-nvmem-fw"; >> + }; > > Would it not be better to have an actual nvmem-layout in here? The > ~empty node here looks rather odd. No issue. Do you want full or just nvmem-layout with compatible string (which is required)? soc-nvmem { compatible = "xlnx,zynqmp-nvmem-fw"; nvmem-layout { compatible = "fixed-layout"; #address-cells = <1>; #size-cells = <1>; soc_revision: soc-revision@0 { reg = <0x0 0x4>; }; }; }; > > Also, there's a type in $subject of nvmem. will fix. Thanks, Michal
On Tue, Jan 30, 2024 at 08:13:09AM +0100, Michal Simek wrote: > > > On 1/29/24 17:57, Conor Dooley wrote: > > On Mon, Jan 29, 2024 at 01:25:06PM +0100, Michal Simek wrote: > > > Describe soc-nvmem subnode as the part of firmware node. The name can't be > > > pure nvmem because dt-schema already defines it as array property that's > > > why different name should be used. > > > > > > Signed-off-by: Michal Simek <michal.simek@amd.com> > > > --- > > > > > > Dt binding for nvmem node has been already merged and it is the part of > > > linux-next tree. > > > Here is the reference to it just in case: > > > https://lore.kernel.org/r/170635581622.41421.8980881999042944764.b4-ty@linaro.org > > > > > > --- > > > .../bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml | 9 +++++++++ > > > 1 file changed, 9 insertions(+) > > > > > > diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml > > > index 7586fbff7ad6..108772ef574f 100644 > > > --- a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml > > > +++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml > > > @@ -62,6 +62,12 @@ properties: > > > interface. > > > type: object > > > + soc-nvmem: > > > + $ref: /schemas/nvmem/xlnx,zynqmp-nvmem.yaml# > > > + description: The ZynqMP MPSoC provides access to the hardware related data > > > + like SOC revision, IDCODE and specific purpose efuses. > > > + type: object > > > + > > > pcap: > > > $ref: /schemas/fpga/xlnx,zynqmp-pcap-fpga.yaml > > > description: The ZynqMP SoC uses the PCAP (Processor Configuration Port) to > > > @@ -110,6 +116,9 @@ examples: > > > firmware { > > > zynqmp_firmware: zynqmp-firmware { > > > #power-domain-cells = <1>; > > > + soc-nvmem { > > > + compatible = "xlnx,zynqmp-nvmem-fw"; > > > + }; > > > > Would it not be better to have an actual nvmem-layout in here? The > > ~empty node here looks rather odd. > > No issue. Do you want full or just nvmem-layout with compatible string (which is > required)? What you have below here seems like a much more useful example. I'd go with that. Cheers, Conor. > soc-nvmem { > compatible = "xlnx,zynqmp-nvmem-fw"; > nvmem-layout { > compatible = "fixed-layout"; > #address-cells = <1>; > #size-cells = <1>; > > soc_revision: soc-revision@0 { > reg = <0x0 0x4>; > }; > }; > };
diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml index 7586fbff7ad6..108772ef574f 100644 --- a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml +++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml @@ -62,6 +62,12 @@ properties: interface. type: object + soc-nvmem: + $ref: /schemas/nvmem/xlnx,zynqmp-nvmem.yaml# + description: The ZynqMP MPSoC provides access to the hardware related data + like SOC revision, IDCODE and specific purpose efuses. + type: object + pcap: $ref: /schemas/fpga/xlnx,zynqmp-pcap-fpga.yaml description: The ZynqMP SoC uses the PCAP (Processor Configuration Port) to @@ -110,6 +116,9 @@ examples: firmware { zynqmp_firmware: zynqmp-firmware { #power-domain-cells = <1>; + soc-nvmem { + compatible = "xlnx,zynqmp-nvmem-fw"; + }; gpio { compatible = "xlnx,zynqmp-gpio-modepin"; gpio-controller;
Describe soc-nvmem subnode as the part of firmware node. The name can't be pure nvmem because dt-schema already defines it as array property that's why different name should be used. Signed-off-by: Michal Simek <michal.simek@amd.com> --- Dt binding for nvmem node has been already merged and it is the part of linux-next tree. Here is the reference to it just in case: https://lore.kernel.org/r/170635581622.41421.8980881999042944764.b4-ty@linaro.org --- .../bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml | 9 +++++++++ 1 file changed, 9 insertions(+)