| Message ID | 20241101-ipq_pcs_rc1-v1-1-fdef575620cf@quicinc.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | Add PCS support for Qualcomm IPQ9574 SoC | expand |
On Fri, Nov 01, 2024 at 06:32:49PM +0800, Lei Wei wrote: > The 'UNIPHY' PCS block in the IPQ9574 SoC includes PCS and SerDes > functions. It supports different interface modes to enable Ethernet > MAC connections to different types of external PHYs/switch. It includes > PCS functions for 1Gbps and 2.5Gbps interface modes and XPCS functions > for 10Gbps interface modes. There are three UNIPHY (PCS) instances > in IPQ9574 SoC which provide PCS/XPCS functions to the six Ethernet > ports. > > Signed-off-by: Lei Wei <quic_leiwei@quicinc.com> > --- > .../bindings/net/pcs/qcom,ipq9574-pcs.yaml | 230 +++++++++++++++++++++ > include/dt-bindings/net/pcs-qcom-ipq.h | 15 ++ > 2 files changed, 245 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml b/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml > new file mode 100644 > index 000000000000..a33873c7ad73 > --- /dev/null > +++ b/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml > @@ -0,0 +1,230 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/net/pcs/qcom,ipq9574-pcs.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Ethernet PCS for Qualcomm IPQ SoC s/IPQ/IPQ9574/ > + > +maintainers: > + - Lei Wei <quic_leiwei@quicinc.com> ... > + const: 0 > + > + clocks: > + items: > + - description: system clock > + - description: AHB clock needed for register interface access > + > + clock-names: > + items: > + - const: sys > + - const: ahb > + > + '#clock-cells': Use consistent quotes, either ' or " > + const: 1 > + description: See include/dt-bindings/net/pcs-qcom-ipq.h for constants > + > +patternProperties: > + "^pcs-mii@[0-4]$": > + type: object > + description: PCS MII interface. > + > + properties: > + reg: > + minimum: 0 > + maximum: 4 > + description: MII index > + > + clocks: > + items: > + - description: PCS MII RX clock > + - description: PCS MII TX clock > + > + clock-names: > + items: > + - const: mii_rx rx > + - const: mii_tx tx > + > + required: > + - reg > + - clocks > + - clock-names > + > + additionalProperties: false > + > +required: > + - compatible > + - reg > + - '#address-cells' > + - '#size-cells' > + - clocks > + - clock-names > + - '#clock-cells' > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/clock/qcom,ipq9574-gcc.h> > + > + pcs0: ethernet-pcs@7a00000 { Drop unused labels here and further. > + compatible = "qcom,ipq9574-pcs"; > + reg = <0x7a00000 0x10000>; > + #address-cells = <1>; > + #size-cells = <0>; > + clocks = <&gcc GCC_UNIPHY0_SYS_CLK>, > + <&gcc GCC_UNIPHY0_AHB_CLK>; > + clock-names = "sys", > + "ahb"; > + #clock-cells = <1>; > + > + pcs0_mii0: pcs-mii@0 { > + reg = <0>; > + clocks = <&nsscc 116>, > + <&nsscc 117>; > + clock-names = "mii_rx", > + "mii_tx"; > + }; > + > + pcs0_mii1: pcs-mii@1 { > + reg = <1>; > + clocks = <&nsscc 118>, > + <&nsscc 119>; > + clock-names = "mii_rx", > + "mii_tx"; > + }; > + > + pcs0_mii2: pcs-mii@2 { > + reg = <2>; > + clocks = <&nsscc 120>, > + <&nsscc 121>; > + clock-names = "mii_rx", > + "mii_tx"; > + }; > + > + pcs0_mii3: pcs-mii@3 { > + reg = <3>; > + clocks = <&nsscc 122>, > + <&nsscc 123>; > + clock-names = "mii_rx", > + "mii_tx"; > + }; > + }; > + > + pcs1: ethernet-pcs@7a10000 { One example is enough, drop the rest. > + compatible = "qcom,ipq9574-pcs"; > + reg = <0x7a10000 0x10000>; > + #address-cells = <1>; > + #size-cells = <0>; > + clocks = <&gcc GCC_UNIPHY1_SYS_CLK>, > + <&gcc GCC_UNIPHY1_AHB_CLK>; > + clock-names = "sys", > + "ahb"; > + #clock-cells = <1>; > + > + pcs1_mii0: pcs-mii@0 { > + reg = <0>; > + clocks = <&nsscc 124>, > + <&nsscc 125>; > + clock-names = "mii_rx", > + "mii_tx"; > + }; > + }; > + > + pcs2: ethernet-pcs@7a20000 { > + compatible = "qcom,ipq9574-pcs"; > + reg = <0x7a20000 0x10000>; > + #address-cells = <1>; > + #size-cells = <0>; > + clocks = <&gcc GCC_UNIPHY2_SYS_CLK>, > + <&gcc GCC_UNIPHY2_AHB_CLK>; > + clock-names = "sys", > + "ahb"; > + #clock-cells = <1>; > + > + pcs2_mii0: pcs-mii@0 { > + reg = <0>; > + clocks = <&nsscc 126>, > + <&nsscc 127>; > + clock-names = "mii_rx", > + "mii_tx"; > + }; > + }; > diff --git a/include/dt-bindings/net/pcs-qcom-ipq.h b/include/dt-bindings/net/pcs-qcom-ipq.h > new file mode 100644 > index 000000000000..8d9124ffd75d > --- /dev/null > +++ b/include/dt-bindings/net/pcs-qcom-ipq.h Filename matching exactly binding filename. Best regards, Krzysztof
On 11/2/2024 9:34 PM, Krzysztof Kozlowski wrote: > On Fri, Nov 01, 2024 at 06:32:49PM +0800, Lei Wei wrote: >> The 'UNIPHY' PCS block in the IPQ9574 SoC includes PCS and SerDes >> functions. It supports different interface modes to enable Ethernet >> MAC connections to different types of external PHYs/switch. It includes >> PCS functions for 1Gbps and 2.5Gbps interface modes and XPCS functions >> for 10Gbps interface modes. There are three UNIPHY (PCS) instances >> in IPQ9574 SoC which provide PCS/XPCS functions to the six Ethernet >> ports. >> >> Signed-off-by: Lei Wei <quic_leiwei@quicinc.com> >> --- >> .../bindings/net/pcs/qcom,ipq9574-pcs.yaml | 230 +++++++++++++++++++++ >> include/dt-bindings/net/pcs-qcom-ipq.h | 15 ++ >> 2 files changed, 245 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml b/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml >> new file mode 100644 >> index 000000000000..a33873c7ad73 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml >> @@ -0,0 +1,230 @@ >> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/net/pcs/qcom,ipq9574-pcs.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Ethernet PCS for Qualcomm IPQ SoC > > s/IPQ/IPQ9574/ > OK, will update. >> + >> +maintainers: >> + - Lei Wei <quic_leiwei@quicinc.com> > > ... > >> + const: 0 >> + >> + clocks: >> + items: >> + - description: system clock >> + - description: AHB clock needed for register interface access >> + >> + clock-names: >> + items: >> + - const: sys >> + - const: ahb >> + >> + '#clock-cells': > > Use consistent quotes, either ' or " > OK, will use single quotes ' everywhere. >> + const: 1 >> + description: See include/dt-bindings/net/pcs-qcom-ipq.h for constants >> + >> +patternProperties: >> + "^pcs-mii@[0-4]$": >> + type: object >> + description: PCS MII interface. >> + >> + properties: >> + reg: >> + minimum: 0 >> + maximum: 4 >> + description: MII index >> + >> + clocks: >> + items: >> + - description: PCS MII RX clock >> + - description: PCS MII TX clock >> + >> + clock-names: >> + items: >> + - const: mii_rx > > rx > OK. >> + - const: mii_tx > > tx OK. > >> + >> + required: >> + - reg >> + - clocks >> + - clock-names >> + >> + additionalProperties: false >> + >> +required: >> + - compatible >> + - reg >> + - '#address-cells' >> + - '#size-cells' >> + - clocks >> + - clock-names >> + - '#clock-cells' >> + >> +additionalProperties: false >> + >> +examples: >> + - | >> + #include <dt-bindings/clock/qcom,ipq9574-gcc.h> >> + >> + pcs0: ethernet-pcs@7a00000 { > > Drop unused labels here and further. > OK, will drop the unused labels "pcs0" and "pcs0_miiX". >> + compatible = "qcom,ipq9574-pcs"; >> + reg = <0x7a00000 0x10000>; >> + #address-cells = <1>; >> + #size-cells = <0>; >> + clocks = <&gcc GCC_UNIPHY0_SYS_CLK>, >> + <&gcc GCC_UNIPHY0_AHB_CLK>; >> + clock-names = "sys", >> + "ahb"; >> + #clock-cells = <1>; >> + >> + pcs0_mii0: pcs-mii@0 { >> + reg = <0>; >> + clocks = <&nsscc 116>, >> + <&nsscc 117>; >> + clock-names = "mii_rx", >> + "mii_tx"; >> + }; >> + >> + pcs0_mii1: pcs-mii@1 { >> + reg = <1>; >> + clocks = <&nsscc 118>, >> + <&nsscc 119>; >> + clock-names = "mii_rx", >> + "mii_tx"; >> + }; >> + >> + pcs0_mii2: pcs-mii@2 { >> + reg = <2>; >> + clocks = <&nsscc 120>, >> + <&nsscc 121>; >> + clock-names = "mii_rx", >> + "mii_tx"; >> + }; >> + >> + pcs0_mii3: pcs-mii@3 { >> + reg = <3>; >> + clocks = <&nsscc 122>, >> + <&nsscc 123>; >> + clock-names = "mii_rx", >> + "mii_tx"; >> + }; >> + }; >> + >> + pcs1: ethernet-pcs@7a10000 { > > One example is enough, drop the rest. > OK. >> + compatible = "qcom,ipq9574-pcs"; >> + reg = <0x7a10000 0x10000>; >> + #address-cells = <1>; >> + #size-cells = <0>; >> + clocks = <&gcc GCC_UNIPHY1_SYS_CLK>, >> + <&gcc GCC_UNIPHY1_AHB_CLK>; >> + clock-names = "sys", >> + "ahb"; >> + #clock-cells = <1>; >> + >> + pcs1_mii0: pcs-mii@0 { >> + reg = <0>; >> + clocks = <&nsscc 124>, >> + <&nsscc 125>; >> + clock-names = "mii_rx", >> + "mii_tx"; >> + }; >> + }; >> + >> + pcs2: ethernet-pcs@7a20000 { >> + compatible = "qcom,ipq9574-pcs"; >> + reg = <0x7a20000 0x10000>; >> + #address-cells = <1>; >> + #size-cells = <0>; >> + clocks = <&gcc GCC_UNIPHY2_SYS_CLK>, >> + <&gcc GCC_UNIPHY2_AHB_CLK>; >> + clock-names = "sys", >> + "ahb"; >> + #clock-cells = <1>; >> + >> + pcs2_mii0: pcs-mii@0 { >> + reg = <0>; >> + clocks = <&nsscc 126>, >> + <&nsscc 127>; >> + clock-names = "mii_rx", >> + "mii_tx"; >> + }; >> + }; >> diff --git a/include/dt-bindings/net/pcs-qcom-ipq.h b/include/dt-bindings/net/pcs-qcom-ipq.h >> new file mode 100644 >> index 000000000000..8d9124ffd75d >> --- /dev/null >> +++ b/include/dt-bindings/net/pcs-qcom-ipq.h > > Filename matching exactly binding filename. > OK. > Best regards, > Krzysztof >
diff --git a/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml b/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml new file mode 100644 index 000000000000..a33873c7ad73 --- /dev/null +++ b/Documentation/devicetree/bindings/net/pcs/qcom,ipq9574-pcs.yaml @@ -0,0 +1,230 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/pcs/qcom,ipq9574-pcs.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ethernet PCS for Qualcomm IPQ SoC + +maintainers: + - Lei Wei <quic_leiwei@quicinc.com> + +description: + The UNIPHY hardware blocks in the Qualcomm IPQ SoC include PCS and SerDes + functions. They enable connectivity between the Ethernet MAC inside the + PPE (packet processing engine) and external Ethernet PHY/switch. There are + three UNIPHY instances in IPQ9574 SoC which provide PCS functions to the + six Ethernet ports. + + For SGMII (1Gbps PHY) or 2500BASE-X (2.5Gbps PHY) interface modes, the PCS + function is enabled by using the PCS block inside UNIPHY. For USXGMII (10Gbps + PHY), the XPCS block in UNIPHY is used. + + The SerDes provides 125M (1Gbps mode) or 312.5M (2.5Gbps and 10Gbps modes) + RX and TX clocks to the NSSCC (Networking Sub System Clock Controller). The + NSSCC divides these clocks and generates the MII RX and TX clocks to each + of the MII interfaces between the PCS and MAC, as per the link speeds and + interface modes. + + Different IPQ SoC may support different number of UNIPHYs (PCSes) since the + number of ports and their capabilities can be different between these SoCs + + Below diagram depicts the UNIPHY (PCS) connections for an IPQ9574 SoC based + board. In this example, the first PCS0 has four GMIIs/XGMIIs, which can connect + with four MACs to support QSGMII (4 x 1Gbps) or 10G_QXGMII (4 x 2.5Gbps) + interface modes. + + - +-------+ +---------+ +-------------------------+ + +---------+CMN PLL| | GCC | | NSSCC (Divider) | + | +----+--+ +----+----+ +--+-------+--------------+ + | | | ^ | + | 31.25M | SYS/AHB|clk RX/TX|clk +------------+ + | ref clk| | | | | + | | v | MII RX|TX clk MAC| RX/TX clk + |25/50M +--+---------+----------+-------+---+ +-+---------+ + |ref clk | | +----------------+ | | | | PPE | + v | | | UNIPHY0 V | | V | + +-------+ | v | +-----------+ (X)GMII| | | + | | | +---+---+ | |--------|------|-- MAC0 | + | | | | | | | (X)GMII| | | + | Quad | | |SerDes | | PCS/XPCS |--------|------|-- MAC1 | + | +<----+ | | | | (X)GMII| | | + |(X)GPHY| | | | | |--------|------|-- MAC2 | + | | | | | | | (X)GMII| | | + | | | +-------+ | |--------|------|-- MAC3 | + +-------+ | | | | | | + | +-----------+ | | | + +-----------------------------------+ | | + +--+---------+----------+-------+---+ | | + +-------+ | UNIPHY1 | | | + | | | +-----------+ | | | + |(X)GPHY| | +-------+ | | (X)GMII| | | + | +<----+ |SerDes | | PCS/XPCS |--------|------|- MAC4 | + | | | | | | | | | | + +-------+ | +-------+ | | | | | + | +-----------+ | | | + +-----------------------------------+ | | + +--+---------+----------+-------+---+ | | + +-------+ | UNIPHY2 | | | + | | | +-----------+ | | | + |(X)GPHY| | +-------+ | | (X)GMII| | | + | +<----+ |SerDes | | PCS/XPCS |--------|------|- MAC5 | + | | | | | | | | | | + +-------+ | +-------+ | | | | | + | +-----------+ | | | + +-----------------------------------+ +-----------+ + +properties: + compatible: + enum: + - qcom,ipq9574-pcs + + reg: + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + clocks: + items: + - description: system clock + - description: AHB clock needed for register interface access + + clock-names: + items: + - const: sys + - const: ahb + + '#clock-cells': + const: 1 + description: See include/dt-bindings/net/pcs-qcom-ipq.h for constants + +patternProperties: + "^pcs-mii@[0-4]$": + type: object + description: PCS MII interface. + + properties: + reg: + minimum: 0 + maximum: 4 + description: MII index + + clocks: + items: + - description: PCS MII RX clock + - description: PCS MII TX clock + + clock-names: + items: + - const: mii_rx + - const: mii_tx + + required: + - reg + - clocks + - clock-names + + additionalProperties: false + +required: + - compatible + - reg + - '#address-cells' + - '#size-cells' + - clocks + - clock-names + - '#clock-cells' + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/qcom,ipq9574-gcc.h> + + pcs0: ethernet-pcs@7a00000 { + compatible = "qcom,ipq9574-pcs"; + reg = <0x7a00000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&gcc GCC_UNIPHY0_SYS_CLK>, + <&gcc GCC_UNIPHY0_AHB_CLK>; + clock-names = "sys", + "ahb"; + #clock-cells = <1>; + + pcs0_mii0: pcs-mii@0 { + reg = <0>; + clocks = <&nsscc 116>, + <&nsscc 117>; + clock-names = "mii_rx", + "mii_tx"; + }; + + pcs0_mii1: pcs-mii@1 { + reg = <1>; + clocks = <&nsscc 118>, + <&nsscc 119>; + clock-names = "mii_rx", + "mii_tx"; + }; + + pcs0_mii2: pcs-mii@2 { + reg = <2>; + clocks = <&nsscc 120>, + <&nsscc 121>; + clock-names = "mii_rx", + "mii_tx"; + }; + + pcs0_mii3: pcs-mii@3 { + reg = <3>; + clocks = <&nsscc 122>, + <&nsscc 123>; + clock-names = "mii_rx", + "mii_tx"; + }; + }; + + pcs1: ethernet-pcs@7a10000 { + compatible = "qcom,ipq9574-pcs"; + reg = <0x7a10000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&gcc GCC_UNIPHY1_SYS_CLK>, + <&gcc GCC_UNIPHY1_AHB_CLK>; + clock-names = "sys", + "ahb"; + #clock-cells = <1>; + + pcs1_mii0: pcs-mii@0 { + reg = <0>; + clocks = <&nsscc 124>, + <&nsscc 125>; + clock-names = "mii_rx", + "mii_tx"; + }; + }; + + pcs2: ethernet-pcs@7a20000 { + compatible = "qcom,ipq9574-pcs"; + reg = <0x7a20000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&gcc GCC_UNIPHY2_SYS_CLK>, + <&gcc GCC_UNIPHY2_AHB_CLK>; + clock-names = "sys", + "ahb"; + #clock-cells = <1>; + + pcs2_mii0: pcs-mii@0 { + reg = <0>; + clocks = <&nsscc 126>, + <&nsscc 127>; + clock-names = "mii_rx", + "mii_tx"; + }; + }; diff --git a/include/dt-bindings/net/pcs-qcom-ipq.h b/include/dt-bindings/net/pcs-qcom-ipq.h new file mode 100644 index 000000000000..8d9124ffd75d --- /dev/null +++ b/include/dt-bindings/net/pcs-qcom-ipq.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. + * + * Device Tree constants for the Qualcomm IPQ PCS + */ + +#ifndef _DT_BINDINGS_PCS_QCOM_IPQ_H +#define _DT_BINDINGS_PCS_QCOM_IPQ_H + +/* The RX and TX clocks which are provided from the SerDes to NSSCC. */ +#define PCS_RX_CLK 0 +#define PCS_TX_CLK 1 + +#endif /* _DT_BINDINGS_PCS_QCOM_IPQ_H */
The 'UNIPHY' PCS block in the IPQ9574 SoC includes PCS and SerDes functions. It supports different interface modes to enable Ethernet MAC connections to different types of external PHYs/switch. It includes PCS functions for 1Gbps and 2.5Gbps interface modes and XPCS functions for 10Gbps interface modes. There are three UNIPHY (PCS) instances in IPQ9574 SoC which provide PCS/XPCS functions to the six Ethernet ports. Signed-off-by: Lei Wei <quic_leiwei@quicinc.com> --- .../bindings/net/pcs/qcom,ipq9574-pcs.yaml | 230 +++++++++++++++++++++ include/dt-bindings/net/pcs-qcom-ipq.h | 15 ++ 2 files changed, 245 insertions(+)