| Message ID | 20231207081917.340167-4-danishanwar@ti.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add AM64x ICSSG Ethernet support | expand |
On 12/7/23 8:06 AM, Anwar, Md Danish wrote: > On 12/7/2023 6:57 PM, Nishanth Menon wrote: >> On 13:49-20231207, MD Danish Anwar wrote: >>> The am642-evm doesn't allow to enable 2 x CPSW3g ports and 2 x ICSSG1 ports >>> all together, so base k3-am642-evm.dts enables by default 2 x CPSW3g ports >>> and 1 x ICSSG1 ports, but it also possible to support 1 x CPSW3g ports and >>> 2 x ICSSG1 ports configuration. >>> >>> This patch adds overlay to support 1 x CPSW3g ports and 2 x ICSSG1 ports >>> configuration: >>> - disable 2nd CPSW3g port >>> - update CPSW3g pinmuxes to not use RGMII2 >>> - disable mdio-mux-1 and define mdio-mux-2 to route ICSSG1 MDIO to the >>> shared DP83869 PHY >>> - add and enable ICSSG1 RGMII2 pinmuxes >>> - enable ICSSG1 MII1 port >>> >>> Signed-off-by: MD Danish Anwar <danishanwar@ti.com> >>> --- >>> arch/arm64/boot/dts/ti/Makefile | 2 + >>> .../dts/ti/k3-am642-evm-icssg1-dualemac.dtso | 80 +++++++++++++++++++ >>> arch/arm64/boot/dts/ti/k3-am642-evm.dts | 2 +- >>> 3 files changed, 83 insertions(+), 1 deletion(-) >>> create mode 100644 arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso >>> >>> diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile >>> index 5ef49b02c71f..99a4dce47f02 100644 >>> --- a/arch/arm64/boot/dts/ti/Makefile >>> +++ b/arch/arm64/boot/dts/ti/Makefile >>> @@ -35,12 +35,14 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-imx219.dtbo >>> dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo >>> >>> # Boards with AM64x SoC >>> +k3-am642-evm-icssg1-dtbs := k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo >> >> Why not handle this for CONFIG_OF_ALL_DTBS alone? See commit >> b0044823a6607e535fdb083c89f487fbf183b171 >> > > I'll have to look into this. > > I am merging this k3-am642-evm-icssg1-dualemac.dtbo with > k3-am642-evm.dtb because when I had posted patches for AM65x DTS, Andrew > had commented [1] saying we should not leave orphan dtbos and every dtbo > should be applied over some dtb by using `dtb- +=`. > And my comment on not having orphan DTBOs is still true. But that was back in September, we now have a new way of accomplishing that without needing to produce a bunch of temporary combined DTB files, which is what Nishanth is pointing out with CONFIG_OF_ALL_DTBS. So, no need for `k3-am642-evm-icssg1.dtb`, you can add the overlay target directly, then create a fake target to test DTBO application by adding to the `dtb- += ` lines below. Andrew > Due to this I am applying the overlay on k3-am642-evm.dtb and creating > new dtb k3-am642-evm-icssg1.dtb which can be used when both ICSSG1 ports > are needed to be enabled. > > [1] https://lore.kernel.org/all/ca832fe3-d5cf-b075-324b-50da40794bb7@ti.com/ > >>> dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb >>> dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb >>> dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb >>> dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb >>> dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo >>> dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo >>> +dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1.dtb >>> >>> # Boards with AM65x SoC >>> k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb k3-am654-base-board-rocktech-rk101-panel.dtbo >>> diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso >>> new file mode 100644 >>> index 000000000000..6f33290c1ad6 >>> --- /dev/null >>> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso >>> @@ -0,0 +1,80 @@ >>> +// SPDX-License-Identifier: GPL-2.0 >>> +/** >>> + * DT overlay for enabling 2nd ICSSG1 port on AM642 EVM >>> + * >>> + * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/ >>> + */ >>> + >>> +/dts-v1/; >>> +/plugin/; >>> + >>> +#include <dt-bindings/gpio/gpio.h> >>> +#include "k3-pinctrl.h" >>> + >>> +&{/} { >>> + aliases { >>> + ethernet1 = "/icssg1-eth/ethernet-ports/port@0"; >>> + ethernet2 = "/icssg1-eth/ethernet-ports/port@1"; >> >> I don't understand what you are overriding here. isn't patch #2 in your >> series already introducing this in the base dts? >> > > Sorry, My bad. I will remove this in v2. > >>> + }; >>> + >>> + mdio-mux-2 { >>> + compatible = "mdio-mux-multiplexer"; >>> + mux-controls = <&mdio_mux>; >>> + mdio-parent-bus = <&icssg1_mdio>; >>> + #address-cells = <1>; >>> + #size-cells = <0>; >>> + >>> + mdio@0 { >>> + reg = <0x0>; >>> + #address-cells = <1>; >>> + #size-cells = <0>; >>> + >>> + icssg1_phy2: ethernet-phy@3 { >>> + reg = <3>; >>> + tx-internal-delay-ps = <250>; >>> + rx-internal-delay-ps = <2000>; >>> + }; >>> + }; >>> + }; >>> +}; >>> + >>> +&main_pmx0 { >>> + icssg1_rgmii2_pins_default: icssg1-rgmii2-default-pins { >>> + pinctrl-single,pins = < >>> + AM64X_IOPAD(0x0108, PIN_INPUT, 2) /* (W11) PRG1_PRU1_GPO0.RGMII2_RD0 */ >>> + AM64X_IOPAD(0x010c, PIN_INPUT, 2) /* (V11) PRG1_PRU1_GPO1.RGMII2_RD1 */ >>> + AM64X_IOPAD(0x0110, PIN_INPUT, 2) /* (AA12) PRG1_PRU1_GPO2.RGMII2_RD2 */ >>> + AM64X_IOPAD(0x0114, PIN_INPUT, 2) /* (Y12) PRG1_PRU1_GPO3.RGMII2_RD3 */ >>> + AM64X_IOPAD(0x0120, PIN_INPUT, 2) /* (U11) PRG1_PRU1_GPO6.RGMII2_RXC */ >>> + AM64X_IOPAD(0x0118, PIN_INPUT, 2) /* (W12) PRG1_PRU1_GPO4.RGMII2_RX_CTL */ >>> + AM64X_IOPAD(0x0134, PIN_OUTPUT, 2) /* (AA10) PRG1_PRU1_GPO11.RGMII2_TD0 */ >>> + AM64X_IOPAD(0x0138, PIN_OUTPUT, 2) /* (V10) PRG1_PRU1_GPO12.RGMII2_TD1 */ >>> + AM64X_IOPAD(0x013c, PIN_OUTPUT, 2) /* (U10) PRG1_PRU1_GPO13.RGMII2_TD2 */ >>> + AM64X_IOPAD(0x0140, PIN_OUTPUT, 2) /* (AA11) PRG1_PRU1_GPO14.RGMII2_TD3 */ >>> + AM64X_IOPAD(0x0148, PIN_OUTPUT, 2) /* (Y10) PRG1_PRU1_GPO16.RGMII2_TXC */ >>> + AM64X_IOPAD(0x0144, PIN_OUTPUT, 2) /* (Y11) PRG1_PRU1_GPO15.RGMII2_TX_CTL */ >>> + >; >>> + }; >>> +}; >>> + >>> +&cpsw3g { >>> + pinctrl-0 = <&rgmii1_pins_default>; >>> +}; >>> + >>> +&cpsw_port2 { >>> + status = "disabled"; >>> +}; >>> + >>> +&mdio_mux_1 { >>> + status = "disabled"; >>> +}; >>> + >>> +&icssg1_eth { >>> + pinctrl-0 = <&icssg1_rgmii1_pins_default &icssg1_rgmii2_pins_default>; >> >> Grrr... No! I have been cleaning up after you folks and you folks should >> take notice. >> >> pinctrl-0 = <&icssg1_rgmii1_pins_default>, <&icssg1_rgmii2_pins_default>; >> > > Sorry, I was not aware of this. I will change it in v2. > >> >>> +}; >>> + >>> +&icssg1_emac1 { >>> + status = "okay"; >>> + phy-handle = <&icssg1_phy2>; >>> + phy-mode = "rgmii-id"; >>> +}; >>> diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts >>> index 04d1c0602d31..90867090e725 100644 >>> --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts >>> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts >>> @@ -203,7 +203,7 @@ mdio_mux: mux-controller { >>> mux-gpios = <&exp1 12 GPIO_ACTIVE_HIGH>; >>> }; >>> >>> - mdio-mux-1 { >>> + mdio_mux_1: mdio-mux-1 { >> >> Commit message doesn't warn me for this change. > > Sure. I will add details of this in commit message saying `Add label > name 'mdio_mux_1' for 'mdio-mux-1' node so that the node 'mdio-mux-1' > can be disabled in the overlay using the label name.` > >>> compatible = "mdio-mux-multiplexer"; >>> mux-controls = <&mdio_mux>; >>> mdio-parent-bus = <&cpsw3g_mdio>; >>> -- >>> 2.34.1 >>> >> >
On 12/7/2023 10:14 PM, Andrew Davis wrote: > On 12/7/23 8:06 AM, Anwar, Md Danish wrote: >> On 12/7/2023 6:57 PM, Nishanth Menon wrote: >>> On 13:49-20231207, MD Danish Anwar wrote: >>>> The am642-evm doesn't allow to enable 2 x CPSW3g ports and 2 x >>>> ICSSG1 ports >>>> all together, so base k3-am642-evm.dts enables by default 2 x CPSW3g >>>> ports >>>> and 1 x ICSSG1 ports, but it also possible to support 1 x CPSW3g >>>> ports and >>>> 2 x ICSSG1 ports configuration. >>>> >>>> This patch adds overlay to support 1 x CPSW3g ports and 2 x ICSSG1 >>>> ports >>>> configuration: >>>> - disable 2nd CPSW3g port >>>> - update CPSW3g pinmuxes to not use RGMII2 >>>> - disable mdio-mux-1 and define mdio-mux-2 to route ICSSG1 MDIO to the >>>> shared DP83869 PHY >>>> - add and enable ICSSG1 RGMII2 pinmuxes >>>> - enable ICSSG1 MII1 port >>>> >>>> Signed-off-by: MD Danish Anwar <danishanwar@ti.com> >>>> --- >>>> arch/arm64/boot/dts/ti/Makefile | 2 + >>>> .../dts/ti/k3-am642-evm-icssg1-dualemac.dtso | 80 >>>> +++++++++++++++++++ >>>> arch/arm64/boot/dts/ti/k3-am642-evm.dts | 2 +- >>>> 3 files changed, 83 insertions(+), 1 deletion(-) >>>> create mode 100644 >>>> arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso >>>> >>>> diff --git a/arch/arm64/boot/dts/ti/Makefile >>>> b/arch/arm64/boot/dts/ti/Makefile >>>> index 5ef49b02c71f..99a4dce47f02 100644 >>>> --- a/arch/arm64/boot/dts/ti/Makefile >>>> +++ b/arch/arm64/boot/dts/ti/Makefile >>>> @@ -35,12 +35,14 @@ dtb-$(CONFIG_ARCH_K3) += >>>> k3-am62x-sk-csi2-imx219.dtbo >>>> dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo >>>> # Boards with AM64x SoC >>>> +k3-am642-evm-icssg1-dtbs := k3-am642-evm.dtb >>>> k3-am642-evm-icssg1-dualemac.dtbo >>> >>> Why not handle this for CONFIG_OF_ALL_DTBS alone? See commit >>> b0044823a6607e535fdb083c89f487fbf183b171 >>> >> >> I'll have to look into this. >> >> I am merging this k3-am642-evm-icssg1-dualemac.dtbo with >> k3-am642-evm.dtb because when I had posted patches for AM65x DTS, Andrew >> had commented [1] saying we should not leave orphan dtbos and every dtbo >> should be applied over some dtb by using `dtb- +=`. >> > > And my comment on not having orphan DTBOs is still true. But that was back > in September, we now have a new way of accomplishing that without needing > to produce a bunch of temporary combined DTB files, which is what Nishanth > is pointing out with CONFIG_OF_ALL_DTBS. > > So, no need for `k3-am642-evm-icssg1.dtb`, you can add the overlay target > directly, then create a fake target to test DTBO application by adding to > the `dtb- += ` lines below. > > Andrew > Sure Andrew. I'll do that and re-spin this series. >> Due to this I am applying the overlay on k3-am642-evm.dtb and creating >> new dtb k3-am642-evm-icssg1.dtb which can be used when both ICSSG1 ports >> are needed to be enabled. >> >> [1] >> https://lore.kernel.org/all/ca832fe3-d5cf-b075-324b-50da40794bb7@ti.com/ >> >>>> dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb >>>> dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb >>>> dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb >>>> dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb >>>> dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo >>>> dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo >>>> +dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1.dtb >>>> # Boards with AM65x SoC >>>> k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb >>>> k3-am654-base-board-rocktech-rk101-panel.dtbo >>>> diff --git >>>> a/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso >>>> b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso >>>> new file mode 100644 >>>> index 000000000000..6f33290c1ad6 >>>> --- /dev/null >>>> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso >>>> @@ -0,0 +1,80 @@ >>>> +// SPDX-License-Identifier: GPL-2.0 >>>> +/** >>>> + * DT overlay for enabling 2nd ICSSG1 port on AM642 EVM >>>> + * >>>> + * Copyright (C) 2023 Texas Instruments Incorporated - >>>> https://www.ti.com/ >>>> + */ >>>> + >>>> +/dts-v1/; >>>> +/plugin/; >>>> + >>>> +#include <dt-bindings/gpio/gpio.h> >>>> +#include "k3-pinctrl.h" >>>> + >>>> +&{/} { >>>> + aliases { >>>> + ethernet1 = "/icssg1-eth/ethernet-ports/port@0"; >>>> + ethernet2 = "/icssg1-eth/ethernet-ports/port@1"; >>> >>> I don't understand what you are overriding here. isn't patch #2 in your >>> series already introducing this in the base dts? >>> >> >> Sorry, My bad. I will remove this in v2. >> >>>> + }; >>>> + >>>> + mdio-mux-2 { >>>> + compatible = "mdio-mux-multiplexer"; >>>> + mux-controls = <&mdio_mux>; >>>> + mdio-parent-bus = <&icssg1_mdio>; >>>> + #address-cells = <1>; >>>> + #size-cells = <0>; >>>> + >>>> + mdio@0 { >>>> + reg = <0x0>; >>>> + #address-cells = <1>; >>>> + #size-cells = <0>; >>>> + >>>> + icssg1_phy2: ethernet-phy@3 { >>>> + reg = <3>; >>>> + tx-internal-delay-ps = <250>; >>>> + rx-internal-delay-ps = <2000>; >>>> + }; >>>> + }; >>>> + }; >>>> +}; >>>> + >>>> +&main_pmx0 { >>>> + icssg1_rgmii2_pins_default: icssg1-rgmii2-default-pins { >>>> + pinctrl-single,pins = < >>>> + AM64X_IOPAD(0x0108, PIN_INPUT, 2) /* (W11) >>>> PRG1_PRU1_GPO0.RGMII2_RD0 */ >>>> + AM64X_IOPAD(0x010c, PIN_INPUT, 2) /* (V11) >>>> PRG1_PRU1_GPO1.RGMII2_RD1 */ >>>> + AM64X_IOPAD(0x0110, PIN_INPUT, 2) /* (AA12) >>>> PRG1_PRU1_GPO2.RGMII2_RD2 */ >>>> + AM64X_IOPAD(0x0114, PIN_INPUT, 2) /* (Y12) >>>> PRG1_PRU1_GPO3.RGMII2_RD3 */ >>>> + AM64X_IOPAD(0x0120, PIN_INPUT, 2) /* (U11) >>>> PRG1_PRU1_GPO6.RGMII2_RXC */ >>>> + AM64X_IOPAD(0x0118, PIN_INPUT, 2) /* (W12) >>>> PRG1_PRU1_GPO4.RGMII2_RX_CTL */ >>>> + AM64X_IOPAD(0x0134, PIN_OUTPUT, 2) /* (AA10) >>>> PRG1_PRU1_GPO11.RGMII2_TD0 */ >>>> + AM64X_IOPAD(0x0138, PIN_OUTPUT, 2) /* (V10) >>>> PRG1_PRU1_GPO12.RGMII2_TD1 */ >>>> + AM64X_IOPAD(0x013c, PIN_OUTPUT, 2) /* (U10) >>>> PRG1_PRU1_GPO13.RGMII2_TD2 */ >>>> + AM64X_IOPAD(0x0140, PIN_OUTPUT, 2) /* (AA11) >>>> PRG1_PRU1_GPO14.RGMII2_TD3 */ >>>> + AM64X_IOPAD(0x0148, PIN_OUTPUT, 2) /* (Y10) >>>> PRG1_PRU1_GPO16.RGMII2_TXC */ >>>> + AM64X_IOPAD(0x0144, PIN_OUTPUT, 2) /* (Y11) >>>> PRG1_PRU1_GPO15.RGMII2_TX_CTL */ >>>> + >; >>>> + }; >>>> +}; >>>> + >>>> +&cpsw3g { >>>> + pinctrl-0 = <&rgmii1_pins_default>; >>>> +}; >>>> + >>>> +&cpsw_port2 { >>>> + status = "disabled"; >>>> +}; >>>> + >>>> +&mdio_mux_1 { >>>> + status = "disabled"; >>>> +}; >>>> + >>>> +&icssg1_eth { >>>> + pinctrl-0 = <&icssg1_rgmii1_pins_default >>>> &icssg1_rgmii2_pins_default>; >>> >>> Grrr... No! I have been cleaning up after you folks and you folks should >>> take notice. >>> >>> pinctrl-0 = <&icssg1_rgmii1_pins_default>, >>> <&icssg1_rgmii2_pins_default>; >>> >> >> Sorry, I was not aware of this. I will change it in v2. >> >>> >>>> +}; >>>> + >>>> +&icssg1_emac1 { >>>> + status = "okay"; >>>> + phy-handle = <&icssg1_phy2>; >>>> + phy-mode = "rgmii-id"; >>>> +}; >>>> diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts >>>> b/arch/arm64/boot/dts/ti/k3-am642-evm.dts >>>> index 04d1c0602d31..90867090e725 100644 >>>> --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts >>>> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts >>>> @@ -203,7 +203,7 @@ mdio_mux: mux-controller { >>>> mux-gpios = <&exp1 12 GPIO_ACTIVE_HIGH>; >>>> }; >>>> - mdio-mux-1 { >>>> + mdio_mux_1: mdio-mux-1 { >>> >>> Commit message doesn't warn me for this change. >> >> Sure. I will add details of this in commit message saying `Add label >> name 'mdio_mux_1' for 'mdio-mux-1' node so that the node 'mdio-mux-1' >> can be disabled in the overlay using the label name.` >> >>>> compatible = "mdio-mux-multiplexer"; >>>> mux-controls = <&mdio_mux>; >>>> mdio-parent-bus = <&cpsw3g_mdio>; >>>> -- >>>> 2.34.1 >>>> >>> >>
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 5ef49b02c71f..99a4dce47f02 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -35,12 +35,14 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-imx219.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo # Boards with AM64x SoC +k3-am642-evm-icssg1-dtbs := k3-am642-evm.dtb k3-am642-evm-icssg1-dualemac.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg1.dtb # Boards with AM65x SoC k3-am654-gp-evm-dtbs := k3-am654-base-board.dtb k3-am654-base-board-rocktech-rk101-panel.dtbo diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso new file mode 100644 index 000000000000..6f33290c1ad6 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso @@ -0,0 +1,80 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * DT overlay for enabling 2nd ICSSG1 port on AM642 EVM + * + * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/gpio/gpio.h> +#include "k3-pinctrl.h" + +&{/} { + aliases { + ethernet1 = "/icssg1-eth/ethernet-ports/port@0"; + ethernet2 = "/icssg1-eth/ethernet-ports/port@1"; + }; + + mdio-mux-2 { + compatible = "mdio-mux-multiplexer"; + mux-controls = <&mdio_mux>; + mdio-parent-bus = <&icssg1_mdio>; + #address-cells = <1>; + #size-cells = <0>; + + mdio@0 { + reg = <0x0>; + #address-cells = <1>; + #size-cells = <0>; + + icssg1_phy2: ethernet-phy@3 { + reg = <3>; + tx-internal-delay-ps = <250>; + rx-internal-delay-ps = <2000>; + }; + }; + }; +}; + +&main_pmx0 { + icssg1_rgmii2_pins_default: icssg1-rgmii2-default-pins { + pinctrl-single,pins = < + AM64X_IOPAD(0x0108, PIN_INPUT, 2) /* (W11) PRG1_PRU1_GPO0.RGMII2_RD0 */ + AM64X_IOPAD(0x010c, PIN_INPUT, 2) /* (V11) PRG1_PRU1_GPO1.RGMII2_RD1 */ + AM64X_IOPAD(0x0110, PIN_INPUT, 2) /* (AA12) PRG1_PRU1_GPO2.RGMII2_RD2 */ + AM64X_IOPAD(0x0114, PIN_INPUT, 2) /* (Y12) PRG1_PRU1_GPO3.RGMII2_RD3 */ + AM64X_IOPAD(0x0120, PIN_INPUT, 2) /* (U11) PRG1_PRU1_GPO6.RGMII2_RXC */ + AM64X_IOPAD(0x0118, PIN_INPUT, 2) /* (W12) PRG1_PRU1_GPO4.RGMII2_RX_CTL */ + AM64X_IOPAD(0x0134, PIN_OUTPUT, 2) /* (AA10) PRG1_PRU1_GPO11.RGMII2_TD0 */ + AM64X_IOPAD(0x0138, PIN_OUTPUT, 2) /* (V10) PRG1_PRU1_GPO12.RGMII2_TD1 */ + AM64X_IOPAD(0x013c, PIN_OUTPUT, 2) /* (U10) PRG1_PRU1_GPO13.RGMII2_TD2 */ + AM64X_IOPAD(0x0140, PIN_OUTPUT, 2) /* (AA11) PRG1_PRU1_GPO14.RGMII2_TD3 */ + AM64X_IOPAD(0x0148, PIN_OUTPUT, 2) /* (Y10) PRG1_PRU1_GPO16.RGMII2_TXC */ + AM64X_IOPAD(0x0144, PIN_OUTPUT, 2) /* (Y11) PRG1_PRU1_GPO15.RGMII2_TX_CTL */ + >; + }; +}; + +&cpsw3g { + pinctrl-0 = <&rgmii1_pins_default>; +}; + +&cpsw_port2 { + status = "disabled"; +}; + +&mdio_mux_1 { + status = "disabled"; +}; + +&icssg1_eth { + pinctrl-0 = <&icssg1_rgmii1_pins_default &icssg1_rgmii2_pins_default>; +}; + +&icssg1_emac1 { + status = "okay"; + phy-handle = <&icssg1_phy2>; + phy-mode = "rgmii-id"; +}; diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index 04d1c0602d31..90867090e725 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -203,7 +203,7 @@ mdio_mux: mux-controller { mux-gpios = <&exp1 12 GPIO_ACTIVE_HIGH>; }; - mdio-mux-1 { + mdio_mux_1: mdio-mux-1 { compatible = "mdio-mux-multiplexer"; mux-controls = <&mdio_mux>; mdio-parent-bus = <&cpsw3g_mdio>;
The am642-evm doesn't allow to enable 2 x CPSW3g ports and 2 x ICSSG1 ports all together, so base k3-am642-evm.dts enables by default 2 x CPSW3g ports and 1 x ICSSG1 ports, but it also possible to support 1 x CPSW3g ports and 2 x ICSSG1 ports configuration. This patch adds overlay to support 1 x CPSW3g ports and 2 x ICSSG1 ports configuration: - disable 2nd CPSW3g port - update CPSW3g pinmuxes to not use RGMII2 - disable mdio-mux-1 and define mdio-mux-2 to route ICSSG1 MDIO to the shared DP83869 PHY - add and enable ICSSG1 RGMII2 pinmuxes - enable ICSSG1 MII1 port Signed-off-by: MD Danish Anwar <danishanwar@ti.com> --- arch/arm64/boot/dts/ti/Makefile | 2 + .../dts/ti/k3-am642-evm-icssg1-dualemac.dtso | 80 +++++++++++++++++++ arch/arm64/boot/dts/ti/k3-am642-evm.dts | 2 +- 3 files changed, 83 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/boot/dts/ti/k3-am642-evm-icssg1-dualemac.dtso