On Thu, Jan 09, 2025 at 04:25:51PM +0530, Basharath Hussain Khaja wrote: > From: Parvathi Pudi <parvathi@xxxxxxxxxxx> > > Documentation update for the newly added "pruss2_eth" device tree > node and its dependencies along with compatibility for PRU-ICSS > Industrial Ethernet Peripheral (IEP), PRU-ICSS Enhanced Capture > (eCAP) peripheral and using YAML binding document for AM57xx SoCs. > > Signed-off-by: Roger Quadros <rogerq@xxxxxx> > Signed-off-by: Andrew F. Davis <afd@xxxxxx> > Signed-off-by: Murali Karicheri <m-karicheri2@xxxxxx> > Signed-off-by: Parvathi Pudi <parvathi@xxxxxxxxxxx> > Signed-off-by: Basharath Hussain Khaja <basharath@xxxxxxxxxxx> > --- > .../devicetree/bindings/net/ti,icss-iep.yaml | 6 + > .../bindings/net/ti,icssm-prueth.yaml | 153 ++++++++++++++++++ > .../bindings/net/ti,pruss-ecap.yaml | 32 ++++ > .../devicetree/bindings/soc/ti/ti,pruss.yaml | 9 ++ > 4 files changed, 200 insertions(+) > create mode 100644 Documentation/devicetree/bindings/net/ti,icssm-prueth.yaml > create mode 100644 Documentation/devicetree/bindings/net/ti,pruss-ecap.yaml > > diff --git a/Documentation/devicetree/bindings/net/ti,icss-iep.yaml b/Documentation/devicetree/bindings/net/ti,icss-iep.yaml > index e36e3a622904..afacdb61a84c 100644 > --- a/Documentation/devicetree/bindings/net/ti,icss-iep.yaml > +++ b/Documentation/devicetree/bindings/net/ti,icss-iep.yaml > @@ -8,18 +8,24 @@ title: Texas Instruments ICSS Industrial Ethernet Peripheral (IEP) module > > maintainers: > - Md Danish Anwar <danishanwar@xxxxxx> > + - Parvathi Pudi <parvathi@xxxxxxxxxxx> > + - Basharath Hussain Khaja <basharath@xxxxxxxxxxx> > > properties: > compatible: > oneOf: > - items: > - enum: > + - ti,am5728-icss-iep > - ti,am642-icss-iep > - ti,j721e-icss-iep > - const: ti,am654-icss-iep > > - const: ti,am654-icss-iep > > + - items: > + - enum: > + - ti,am5728-icss-iep You can't have both. It's either compatible with ti,am654-icss-iep or it isn't. > > reg: > maxItems: 1 > diff --git a/Documentation/devicetree/bindings/net/ti,icssm-prueth.yaml b/Documentation/devicetree/bindings/net/ti,icssm-prueth.yaml > new file mode 100644 > index 000000000000..34d68619c086 > --- /dev/null > +++ b/Documentation/devicetree/bindings/net/ti,icssm-prueth.yaml > @@ -0,0 +1,153 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/net/ti,icssm-prueth.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Texas Instruments ICSSM PRUSS Ethernet > + > +maintainers: > + - Roger Quadros <rogerq@xxxxxx> > + - Andrew F. Davis <afd@xxxxxx> > + - Parvathi Pudi <parvathi@xxxxxxxxxxx> > + - Basharath Hussain Khaja <basharath@xxxxxxxxxxx> > + > +description: > + Ethernet based on the Programmable Real-Time Unit and Industrial > + Communication Subsystem. > + > +properties: > + compatible: > + enum: > + - ti,am57-prueth # for AM57x SoC family > + > + sram: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + phandle to OCMC SRAM node > + > + ti,mii-rt: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + phandle to MII_RT module's syscon regmap > + > + ti,iep: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + phandle to IEP (Industrial Ethernet Peripheral) for ICSS > + > + ecap: > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + phandle to Enhanced Capture (eCAP) event for ICSS > + > + interrupts: > + maxItems: 2 > + description: > + Interrupt specifiers to IRQ. Provide a description for each entry because I can't decipher the names. > + > + interrupt-names: > + items: > + - const: rx_lre_hp > + - const: rx_lre_lp The same prefix or suffix on every entry is usually redundant. > + > + ethernet-ports: > + type: object > + additionalProperties: false > + > + properties: > + '#address-cells': > + const: 1 > + '#size-cells': > + const: 0 > + > + patternProperties: > + ^port@[0-1]$: ethernet-port > + type: object > + description: ICSSM PRUETH external ports > + $ref: ethernet-controller.yaml# > + unevaluatedProperties: false > + > + properties: > + reg: > + items: > + - enum: [0, 1] > + description: ICSSG PRUETH port number > + > + interrupts: > + maxItems: 3 > + > + interrupt-names: > + items: > + - const: rx > + - const: emac_ptp_tx > + - const: hsr_ptp_tx > + > + ti,no-half-duplex: > + type: boolean > + description: > + Disable half duplex operation on ICSSM MII port. > + > + required: > + - reg blank line > + anyOf: > + - required: > + - port@0 > + - required: > + - port@1 > + > +required: > + - compatible > + - sram > + - ti,mii-rt > + - ti,iep > + - ecap > + - ethernet-ports > + - interrupts > + - interrupt-names > + > +allOf: > + - $ref: /schemas/remoteproc/ti,pru-consumer.yaml# > + > +unevaluatedProperties: false > + > +examples: > + - | > + /* Dual-MAC Ethernet application node on PRU-ICSS2 */ > + pruss2_eth: pruss2-eth { > + compatible = "ti,am57-prueth"; > + ti,prus = <&pru2_0>, <&pru2_1>; > + sram = <&ocmcram1>; > + ti,mii-rt = <&pruss2_mii_rt>; > + ti,iep = <&pruss2_iep>; > + ecap = <&pruss2_ecap>; > + interrupts = <20 2 2>, <21 3 3>; > + interrupt-names = "rx_lre_hp", "rx_lre_lp"; > + interrupt-parent = <&pruss2_intc>; > + > + ethernet-ports { > + #address-cells = <1>; > + #size-cells = <0>; > + pruss2_emac0: port@0 { > + reg = <0>; > + phy-handle = <&pruss2_eth0_phy>; > + phy-mode = "mii"; > + interrupts = <20 2 2>, <26 6 6>, <23 6 6>; > + interrupt-names = "rx", "emac_ptp_tx", "hsr_ptp_tx"; > + ti,no-half-duplex; > + /* Filled in by bootloader */ > + local-mac-address = [00 00 00 00 00 00]; > + }; > + > + pruss2_emac1: port@1 { > + reg = <1>; > + phy-handle = <&pruss2_eth1_phy>; > + phy-mode = "mii"; > + interrupts = <21 3 3>, <27 9 7>, <24 9 7>; > + interrupt-names = "rx", "emac_ptp_tx", "hsr_ptp_tx"; > + ti,no-half-duplex; > + /* Filled in by bootloader */ > + local-mac-address = [00 00 00 00 00 00]; > + }; > + }; > + }; > diff --git a/Documentation/devicetree/bindings/net/ti,pruss-ecap.yaml b/Documentation/devicetree/bindings/net/ti,pruss-ecap.yaml > new file mode 100644 > index 000000000000..d42e636bf516 > --- /dev/null > +++ b/Documentation/devicetree/bindings/net/ti,pruss-ecap.yaml > @@ -0,0 +1,32 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/net/ti,pruss-ecap.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Texas Instruments PRU-ICSS Enhanced Capture (eCAP) event module > + > +maintainers: > + - Murali Karicheri <m-karicheri2@xxxxxx> > + - Parvathi Pudi <parvathi@xxxxxxxxxxx> > + - Basharath Hussain Khaja <basharath@xxxxxxxxxxx> > + > +properties: > + compatible: > + const: ti,pruss-ecap > + > + reg: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + pruss0_ecap: ecap@30000 { Drop unused labels. > + compatible = "ti,pruss-ecap"; > + reg = <0x30000 0x60>; > + }; > diff --git a/Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml b/Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml > index 927b3200e29e..ddd65bd93aa1 100644 > --- a/Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml > +++ b/Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml > @@ -251,6 +251,15 @@ patternProperties: > > type: object > > + ecap@[a-f0-9]+$: > + description: | Don't need '|' > + PRU-ICSS has a Enhanced Capture (eCAP) event module which can generate > + and capture periodic timer based events which will be used for features > + like RX Pacing to rise interrupt when the timer event has occurred. > + Each PRU-ICSS instance has one eCAP modeule irrespective of SOCs. > + > + type: object > + > mii-rt@[a-f0-9]+$: > description: | > Real-Time Ethernet to support multiple industrial communication protocols. > -- > 2.34.1 >
