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Date:   Tue, 3 Oct 2023 05:15:40 +0800
From:   Da Xue <da@...sconfused.com>
To:     Jerome Brunet <jbrunet@...libre.com>
Cc:     Neil Armstrong <neil.armstrong@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Da Xue <da.xue@...retech.co>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org
Subject: Re: [PATCH 2/2] arm64: dts: amlogic: add libretech cottonwood support

On Tue, Oct 3, 2023 at 3:13 AM Jerome Brunet <jbrunet@...libre.com> wrote:
>
>
> On Mon 02 Oct 2023 at 18:45, Neil Armstrong <neil.armstrong@...aro.org> wrote:
>
> > Hi,
> >
> > On 02/10/2023 16:10, Jerome Brunet wrote:
> >> Add support for the Libretech cottonwood board family.
> >> These 2 boards are based on the same PCB, with an RPi B form factor.
> >> The "Alta" board uses an a311d while the "Solitude" variant uses an
> >> s905d3.
> >> Co-developed-by: Da Xue <da.xue@...retech.co>
> >> Signed-off-by: Da Xue <da.xue@...retech.co>
> >> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> >> ---
> >>   arch/arm64/boot/dts/amlogic/Makefile          |   2 +
> >>   .../amlogic/meson-g12b-a311d-libretech-cc.dts | 133 ++++
> >>   .../amlogic/meson-libretech-cottonwood.dtsi   | 610 ++++++++++++++++++
> >>   .../amlogic/meson-sm1-s905d3-libretech-cc.dts |  89 +++
> >>   4 files changed, 834 insertions(+)
> >>   create mode 100644 arch/arm64/boot/dts/amlogic/meson-g12b-a311d-libretech-cc.dts
> >>   create mode 100644 arch/arm64/boot/dts/amlogic/meson-libretech-cottonwood.dtsi
> >>   create mode 100644 arch/arm64/boot/dts/amlogic/meson-sm1-s905d3-libretech-cc.dts
> >> diff --git a/arch/arm64/boot/dts/amlogic/Makefile
> >> b/arch/arm64/boot/dts/amlogic/Makefile
> >> index 4ce401d17b63..cc8b34bd583d 100644
> >> --- a/arch/arm64/boot/dts/amlogic/Makefile
> >> +++ b/arch/arm64/boot/dts/amlogic/Makefile
> >> @@ -18,6 +18,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-g12b-bananapi-cm4-cm4io.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gsking-x.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gtking-pro.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gtking.dtb
> >> +dtb-$(CONFIG_ARCH_MESON) += meson-g12b-a311d-libretech-cc.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-go-ultra.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2-plus.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2.dtb
> >> @@ -73,6 +74,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-sm1-bananapi-m2-pro.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-sm1-bananapi-m5.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-sm1-h96-max.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-sm1-khadas-vim3l.dtb
> >> +dtb-$(CONFIG_ARCH_MESON) += meson-sm1-s905d3-libretech-cc.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-c4.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-hc4.dtb
> >>   dtb-$(CONFIG_ARCH_MESON) += meson-sm1-sei610.dtb
> >> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-libretech-cc.dts
> >> new file mode 100644
> >> index 000000000000..fc890e235dbd
> >> --- /dev/null
> >> +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-libretech-cc.dts
> >> @@ -0,0 +1,133 @@
> >> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> >> +/*
> >> + * Copyright (c) 2023 BayLibre, SAS.
> >> + * Author: Jerome Brunet <jbrunet@...libre.com>
> >> + */
> >> +
> >> +/dts-v1/;
> >> +
> >> +#include <dt-bindings/clock/g12a-clkc.h>
> >> +#include "meson-g12b-a311d.dtsi"
> >> +#include "meson-libretech-cottonwood.dtsi"
> >> +
> >> +/ {
> >> +    compatible = "libretech,aml-a311d-cc", "amlogic,a311d", "amlogic,g12b";
> >> +    model = "Libre Computer AML-A311D-CC Alta";
> >> +
> >> +    vddcpu_a: regulator-vddcpu-a {
> >> +            compatible = "pwm-regulator";
> >> +            regulator-name = "VDDCPU_A";
> >> +            regulator-min-microvolt = <730000>;
> >> +            regulator-max-microvolt = <1011000>;
> >> +            regulator-boot-on;
> >> +            regulator-always-on;
> >> +            pwm-supply = <&dc_in>;
> >> +            pwms = <&pwm_ab 0 1250 0>;
> >> +            pwm-dutycycle-range = <100 0>;
> >> +    };
> >> +
> >> +    sound {
> >> +            model = "Alta";
> >
> > I think those sound model properties should be coherent with the
> > other Libre Computer boards:
> > arch/arm64/boot/dts/amlogic/meson-gx-libretech-pc.dtsi:         model = "LIBRETECH-PC";
> > arch/arm64/boot/dts/amlogic/meson-gxl-s805x-libretech-ac.dts:           model = "LIBRETECH-AC";
> > arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc-v2.dts:                model = "LIBRETECH-CC-V2";
> > arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts:           model = "LIBRETECH-CC";
>
> "LIBRETECH-CC-" leave very little room to play with
> That's not really something that could have been anticipated 5+ years ago
>

I think the formal model name is best, maybe with LC prefix.
eg. LC-AML-A311D-CC and LC-AML-S905D3-CC

https://hub.libre.computer/t/libre-computer-board-naming-and-conventions/100

> >
> > It's ok to change the scheme since it's tried to keep the name under the 15 characters limit,
> > will the next board keep this naming ?
>
> I don't know what the next board will be so I can hardly make any prediction
> I'm open to suggestion if you prefer something else
>
> >
> >
> >> +            audio-routing = "TDMOUT_A IN 0", "FRDDR_A OUT 0",
> >> +                            "TDMOUT_A IN 1", "FRDDR_B OUT 0",
> >> +                            "TDMOUT_A IN 2", "FRDDR_C OUT 0",
> >> +                            "TDM_A Playback", "TDMOUT_A OUT",
> >> +                            "TDMOUT_B IN 0", "FRDDR_A OUT 1",
> >> +                            "TDMOUT_B IN 1", "FRDDR_B OUT 1",
> >> +                            "TDMOUT_B IN 2", "FRDDR_C OUT 1",
> >> +                            "TDM_B Playback", "TDMOUT_B OUT",
> >> +                            "TDMOUT_C IN 0", "FRDDR_A OUT 2",
> >> +                            "TDMOUT_C IN 1", "FRDDR_B OUT 2",
> >> +                            "TDMOUT_C IN 2", "FRDDR_C OUT 2",
> >> +                            "TDM_C Playback", "TDMOUT_C OUT",
> >> +                            "TDMIN_A IN 0", "TDM_A Capture",
> >> +                            "TDMIN_B IN 0", "TDM_A Capture",
> >> +                            "TDMIN_C IN 0", "TDM_A Capture",
> >> +                            "TDMIN_A IN 3", "TDM_A Loopback",
> >> +                            "TDMIN_B IN 3", "TDM_A Loopback",
> >> +                            "TDMIN_C IN 3", "TDM_A Loopback",
> >> +                            "TDMIN_A IN 1", "TDM_B Capture",
> >> +                            "TDMIN_B IN 1", "TDM_B Capture",
> >> +                            "TDMIN_C IN 1", "TDM_B Capture",
> >> +                            "TDMIN_A IN 4", "TDM_B Loopback",
> >> +                            "TDMIN_B IN 4", "TDM_B Loopback",
> >> +                            "TDMIN_C IN 4", "TDM_B Loopback",
> >> +                            "TDMIN_A IN 2", "TDM_C Capture",
> >> +                            "TDMIN_B IN 2", "TDM_C Capture",
> >> +                            "TDMIN_C IN 2", "TDM_C Capture",
> >> +                            "TDMIN_A IN 5", "TDM_C Loopback",
> >> +                            "TDMIN_B IN 5", "TDM_C Loopback",
> >> +                            "TDMIN_C IN 5", "TDM_C Loopback",
> >> +                            "TODDR_A IN 0", "TDMIN_A OUT",
> >> +                            "TODDR_B IN 0", "TDMIN_A OUT",
> >> +                            "TODDR_C IN 0", "TDMIN_A OUT",
> >> +                            "TODDR_A IN 1", "TDMIN_B OUT",
> >> +                            "TODDR_B IN 1", "TDMIN_B OUT",
> >> +                            "TODDR_C IN 1", "TDMIN_B OUT",
> >> +                            "TODDR_A IN 2", "TDMIN_C OUT",
> >> +                            "TODDR_B IN 2", "TDMIN_C OUT",
> >> +                            "TODDR_C IN 2", "TDMIN_C OUT",
> >> +                            "Lineout", "ACODEC LOLP",
> >> +                            "Lineout", "ACODEC LORP";
> >> +    };
> >> +};
> >> +
> >> +&cpu_opp_table_0 {
> >> +            opp-1800000000 {
> >> +                    opp-hz = /bits/ 64 <1800000000>;
> >> +                    opp-microvolt = <1001000>;
> >> +            };

This seems to match
https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/amlogic/meson-g12b-a311d.dtsi#L44

> >> +
> >> +            opp-2016000000 {
> >> +                    opp-hz = /bits/ 64 <2016000000>;
> >> +                    opp-microvolt = <1011000>;
> >> +            };

We run manufacturing verification at this speed but I don't think we
should include this in upstream.

> >> +};
> >> +
> >> +&cpu0 {
> >> +    cpu-supply = <&vddcpu_b>;
> >> +    operating-points-v2 = <&cpu_opp_table_0>;
> >> +    clocks = <&clkc CLKID_CPU_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >> +
> >> +&cpu1 {
> >> +    cpu-supply = <&vddcpu_b>;
> >> +    operating-points-v2 = <&cpu_opp_table_0>;
> >> +    clocks = <&clkc CLKID_CPU_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >> +
> >> +&cpu100 {
> >> +    cpu-supply = <&vddcpu_a>;
> >> +    operating-points-v2 = <&cpub_opp_table_1>;
> >> +    clocks = <&clkc CLKID_CPUB_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >> +
> >> +&cpu101 {
> >> +    cpu-supply = <&vddcpu_a>;
> >> +    operating-points-v2 = <&cpub_opp_table_1>;
> >> +    clocks = <&clkc CLKID_CPUB_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >> +
> >> +&cpu102 {
> >> +    cpu-supply = <&vddcpu_a>;
> >> +    operating-points-v2 = <&cpub_opp_table_1>;
> >> +    clocks = <&clkc CLKID_CPUB_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >> +
> >> +&cpu103 {
> >> +    cpu-supply = <&vddcpu_a>;
> >> +    operating-points-v2 = <&cpub_opp_table_1>;
> >> +    clocks = <&clkc CLKID_CPUB_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >> +
> >> +&pwm_ab {
> >> +    pinctrl-0 = <&pwm_a_e_pins>, <&pwm_b_x7_pins>;
> >> +    clocks = <&xtal>, <&xtal>;
> >> +    clock-names = "clkin0", "clkin1";
> >> +};
> >> diff --git a/arch/arm64/boot/dts/amlogic/meson-libretech-cottonwood.dtsi b/arch/arm64/boot/dts/amlogic/meson-libretech-cottonwood.dtsi
> >> new file mode 100644
> >> index 000000000000..a7fc8963ff54
> >> --- /dev/null
> >> +++ b/arch/arm64/boot/dts/amlogic/meson-libretech-cottonwood.dtsi
> >> @@ -0,0 +1,610 @@
> >> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> >> +/*
> >> + * Copyright (c) 2023 BayLibre, SAS.
> >> + * Author: Jerome Brunet <jbrunet@...libre.com>
> >> + */
> >> +
> >> +#include <dt-bindings/clock/g12a-clkc.h>
> >> +#include <dt-bindings/input/input.h>
> >> +#include <dt-bindings/leds/common.h>
> >> +#include <dt-bindings/gpio/gpio.h>
> >> +#include <dt-bindings/gpio/meson-g12a-gpio.h>
> >> +#include <dt-bindings/sound/meson-g12a-toacodec.h>
> >> +#include <dt-bindings/sound/meson-g12a-tohdmitx.h>
> >> +
> >> +/ {
> >> +    aliases {
> >> +            serial0 = &uart_AO;
> >> +            ethernet0 = &ethmac;
> >> +            spi0 = &spifc;
> >> +    };
> >> +
> >> +    memory@0 {
> >> +            device_type = "memory";
> >> +            reg = <0x0 0x0 0x0 0x80000000>;
> >> +    };
> >> +
> >> +    chosen {
> >> +            stdout-path = "serial0:115200n8";
> >> +    };
> >> +
> >> +    dioo2133: audio-amplifier-0 {
> >> +            compatible = "simple-audio-amplifier";
> >> +            enable-gpios = <&gpio GPIOX_0 GPIO_ACTIVE_HIGH>;
> >> +            VCC-supply = <&vcc_5v>;
> >> +            sound-name-prefix = "10U2";
> >> +    };
> >> +
> >> +    /* TOFIX: handle CVBS_DET on SARADC channel 0 */
> >> +    cvbs-connector {
> >> +            compatible = "composite-video-connector";
> >> +
> >> +            port {
> >> +                    cvbs_connector_in: endpoint {
> >> +                            remote-endpoint = <&cvbs_vdac_out>;
> >> +                    };
> >> +            };
> >> +    };
> >> +
> >> +    emmc_pwrseq: emmc-pwrseq {
> >> +            compatible = "mmc-pwrseq-emmc";
> >> +            reset-gpios = <&gpio BOOT_12 GPIO_ACTIVE_LOW>;
> >> +    };
> >> +
> >> +    hdmi-connector {
> >> +            compatible = "hdmi-connector";
> >> +            type = "a";
> >> +
> >> +            port {
> >> +                    hdmi_connector_in: endpoint {
> >> +                            remote-endpoint = <&hdmi_tx_tmds_out>;
> >> +                    };
> >> +            };
> >> +    };
> >> +
> >> +    leds-pwm {
> >> +            compatible = "pwm-leds";
> >> +
> >> +            led-green {
> >> +                    color = <LED_COLOR_ID_GREEN>;
> >> +                    function = LED_FUNCTION_STATUS;
> >> +                    linux,default-trigger = "default-on";
> >> +                    panic-indicator;
> >> +                    max-brightness = <255>;
> >> +                    pwms = <&pwm_cd 1 1250 0>;
> >> +                    active-low;
> >> +            };
> >> +
> >> +            led-blue {
> >> +                    color = <LED_COLOR_ID_BLUE>;
> >> +                    function = LED_FUNCTION_ACTIVITY;
> >> +                    linux,default-trigger = "activity";
> >> +                    max-brightness = <255>;
> >> +                    pwms = <&pwm_ab 1 1250 0>;
> >> +                    active-low;
> >> +            };
> >> +    };
> >> +
> >> +    leds-gpio {
> >> +            compatible = "gpio-leds";
> >> +
> >> +            led-orange {
> >> +                    color = <LED_COLOR_ID_AMBER>;

Should this be LED_COLOR_ID_ORANGE?

> >> +                    function = LED_FUNCTION_STANDBY;
> >> +                    gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
> >> +            };
> >> +    };
> >> +
> >> +    dc_in: regulator-dc-in {
> >> +            compatible = "regulator-fixed";
> >> +            regulator-name = "5V_IN";
> >> +            regulator-min-microvolt = <5000000>;
> >> +            regulator-max-microvolt = <5000000>;
> >> +            regulator-always-on;
> >> +    };
> >> +
> >> +    flash_1v8: regulator-flash-1v8 {
> >> +            compatible = "regulator-fixed";
> >> +            regulator-name = "FLASH_1V8";
> >> +            regulator-min-microvolt = <1800000>;
> >> +            regulator-max-microvolt = <1800000>;
> >> +            regulator-always-on;
> >> +            vin-supply = <&vcc_3v3>;
> >> +    };
> >> +
> >> +    vcc_card: regulator-vcc-card {
> >> +            compatible = "regulator-fixed";
> >> +            regulator-name = "VCC_CARD";
> >> +            regulator-min-microvolt = <3300000>;
> >> +            regulator-max-microvolt = <3300000>;
> >> +            vin-supply = <&vddao_3v3>;
> >> +            gpio = <&gpio GPIOX_2 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> >> +            enable-active-high;
> >> +            gpio-open-drain;
> >> +    };
> >> +
> >> +    vcc_3v3: regulator-vcc-3v3 {
> >> +            compatible = "regulator-fixed";
> >> +            regulator-name = "VCC_3V3";
> >> +            regulator-min-microvolt = <3300000>;
> >> +            regulator-max-microvolt = <3300000>;
> >> +            regulator-always-on;
> >> +            vin-supply = <&vddao_3v3>;
> >> +
> >> +            /* FIXME: controlled by TEST_N */
> >> +    };
> >> +
> >> +    vcc_5v: regulator-vcc-5v {
> >> +            compatible = "regulator-fixed";
> >> +            regulator-name = "VCC_5V";
> >> +            regulator-min-microvolt = <5000000>;
> >> +            regulator-max-microvolt = <5000000>;
> >> +            regulator-always-on;
> >> +            vin-supply = <&dc_in>;
> >> +            gpio = <&gpio GPIOH_8 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> >> +            enable-active-high;
> >> +            gpio-open-drain;
> >> +    };
> >> +
> >> +    vddao_3v3: regulator-vddao_3v3 {
> >> +            compatible = "regulator-fixed";
> >> +            regulator-name = "VDDAO_3V3";
> >> +            regulator-min-microvolt = <3300000>;
> >> +            regulator-max-microvolt = <3300000>;
> >> +            regulator-always-on;
> >> +            vin-supply = <&dc_in>;
> >> +    };
> >> +
> >> +    vddcpu_b: regulator-vddcpu-b {
> >> +            compatible = "pwm-regulator";
> >> +            regulator-name = "VDDCPU_B";
> >> +            regulator-min-microvolt = <730000>;
> >> +            regulator-max-microvolt = <1011000>;
> >> +            regulator-boot-on;
> >> +            regulator-always-on;
> >> +            pwm-supply = <&dc_in>;
> >> +            pwms = <&pwm_AO_cd 1 1250 0>;
> >> +            pwm-dutycycle-range = <100 0>;
> >> +    };
> >> +
> >> +    vddio_ao18: regulator-vddio_ao18 {
> >> +            compatible = "regulator-fixed";
> >> +            regulator-name = "VDDIO_AO18";
> >> +            regulator-min-microvolt = <1800000>;
> >> +            regulator-max-microvolt = <1800000>;
> >> +            regulator-always-on;
> >> +            vin-supply = <&vddao_3v3>;
> >> +    };
> >> +
> >> +    vddio_c: regulator-vddio_c {
> >> +            compatible = "regulator-gpio";
> >> +            regulator-name = "VDDIO_C";
> >> +            regulator-min-microvolt = <1800000>;
> >> +            regulator-max-microvolt = <3300000>;
> >> +            regulator-settling-time-up-us = <200>;
> >> +            regulator-settling-time-down-us = <50000>;
> >> +            vin-supply = <&vddao_3v3>;
> >> +            gpios = <&gpio GPIOX_4 GPIO_ACTIVE_HIGH>;
> >> +            states = <3300000 0>,
> >> +                     <1800000 1>;
> >> +    };
> >> +
> >> +    sound {
> >> +            compatible = "amlogic,axg-sound-card";
> >> +            audio-widgets = "Line", "Lineout";
> >> +            audio-aux-devs = <&tdmout_a>, <&tdmout_b>, <&tdmout_c>,
> >> +                             <&tdmin_a>, <&tdmin_b>, <&tdmin_c>,
> >> +                             <&dioo2133>;
> >> +
> >> +            assigned-clocks = <&clkc CLKID_MPLL2>,
> >> +                              <&clkc CLKID_MPLL0>,
> >> +                              <&clkc CLKID_MPLL1>;
> >> +            assigned-clock-parents = <0>, <0>, <0>;
> >> +            assigned-clock-rates = <294912000>,
> >> +                                   <270950400>,
> >> +                                   <393216000>;
> >> +
> >> +            dai-link-0 {
> >> +                    sound-dai = <&frddr_a>;
> >> +            };
> >> +
> >> +            dai-link-1 {
> >> +                    sound-dai = <&frddr_b>;
> >> +            };
> >> +
> >> +            dai-link-2 {
> >> +                    sound-dai = <&frddr_c>;
> >> +            };
> >> +
> >> +            dai-link-3 {
> >> +                    sound-dai = <&toddr_a>;
> >> +            };
> >> +
> >> +            dai-link-4 {
> >> +                    sound-dai = <&toddr_b>;
> >> +            };
> >> +
> >> +            dai-link-5 {
> >> +                    sound-dai = <&toddr_c>;
> >> +            };
> >> +
> >> +            /*
> >> +             * Audio setup: The 40 pins header provides access to 2 TDMs,
> >> +             * SPDIF In/Out and PDM inputs.
> >> +             * - TDM A: 2 lanes
> >> +             *    D0:    40/X9
> >> +             *    D1:    38/X8
> >> +             *    BCLK:  12/X11
> >> +             *    FS:    35/X10
> >> +             * - TDM B: 4 lanes
> >> +             *    D0:    37/A3
> >> +             *    D1:    16/A4
> >> +             *    D2:    18/A5 or 7/AO6
> >> +             *    D3:    22/A6 or 21/H5
> >> +             *    BCLK:  29/A1 or 8/AO8
> >> +             *    FS:    31/A2 or 11/AO7
> >> +             * - 2 Master Clocks:
> >> +             *    MCLK0: 15/A0 or 10/AO9
> >> +             *    MCLK1: 33/X15
> >> +             * - SPDIF:
> >> +             *    OUT:   32/A11
> >> +             *    IN:    21/H5
> >> +             * - PDM Input:
> >> +             *    DO:    13/A8
> >> +             *    D1:    26/A9
> >> +             *    D2:    22/A6
> >> +             *    D3:    18/A5
> >> +             *    DCLK:  36/A7
> >> +             *
> >> +             * TDM C is not usable on the 40 pins connector so it is
> >> +             * setup for the HDMI 4 lanes i2s.
> >> +             *
> >> +             * No pinctrl is enabled by default to preserve the
> >> +             * genericity of the 40 pins header. Many configurations are
> >> +             * possible based on the desired use case. Please adjust TDM
> >> +             * masks, clock setups and pinctrl accordingly.
> >> +             */
> >> +
> >> +            dai-link-6 {
> >> +                    sound-dai = <&tdmif_a>;
> >> +                    dai-format = "dsp_a";
> >> +                    dai-tdm-slot-tx-mask-0 = <1 1>;
> >> +                    mclk-fs = <256>;
> >> +
> >> +                    codec-0 {
> >> +                            sound-dai = <&tohdmitx TOHDMITX_I2S_IN_A>;
> >> +                    };
> >> +
> >> +                    codec-1 {
> >> +                            sound-dai = <&toacodec TOACODEC_IN_A>;
> >> +                    };
> >> +            };
> >> +
> >> +            dai-link-7 {
> >> +                    sound-dai = <&tdmif_b>;
> >> +                    dai-format = "i2s";
> >> +                    dai-tdm-slot-tx-mask-0 = <1 1>;
> >> +                    dai-tdm-slot-rx-mask-1 = <1 1>;
> >> +                    mclk-fs = <256>;
> >> +
> >> +                    codec-0 {
> >> +                            sound-dai = <&tohdmitx TOHDMITX_I2S_IN_B>;
> >> +                    };
> >> +
> >> +                    codec-1 {
> >> +                            sound-dai = <&toacodec TOACODEC_IN_B>;
> >> +                    };
> >> +            };
> >> +
> >> +            dai-link-8 {
> >> +                    sound-dai = <&tdmif_c>;
> >> +                    dai-format = "i2s";
> >> +                    dai-tdm-slot-tx-mask-0 = <1 1>;
> >> +                    dai-tdm-slot-tx-mask-1 = <1 1>;
> >> +                    dai-tdm-slot-tx-mask-2 = <1 1>;
> >> +                    dai-tdm-slot-tx-mask-3 = <1 1>;
> >> +                    mclk-fs = <256>;
> >> +
> >> +                    codec-0 {
> >> +                            sound-dai = <&tohdmitx TOHDMITX_I2S_IN_C>;
> >> +                    };
> >> +
> >> +                    codec-1 {
> >> +                            sound-dai = <&toacodec TOACODEC_IN_C>;
> >> +                    };
> >> +            };
> >> +
> >> +            dai-link-9 {
> >> +                    sound-dai = <&tohdmitx TOHDMITX_I2S_OUT>;
> >> +
> >> +                    codec {
> >> +                            sound-dai = <&hdmi_tx>;
> >> +                    };
> >> +            };
> >> +
> >> +            dai-link-10 {
> >> +                    sound-dai = <&toacodec TOACODEC_OUT>;
> >> +
> >> +                    codec {
> >> +                            sound-dai = <&acodec>;
> >> +                    };
> >> +            };
> >> +    };
> >> +};
> >> +
> >> +&acodec {
> >> +    status = "okay";
> >> +    AVDD-supply = <&vddio_ao18>;
> >> +};
> >> +
> >> +&arb {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&cecb_AO {
> >> +    status = "okay";
> >> +    pinctrl-0 = <&cec_ao_b_h_pins>;
> >> +    pinctrl-names = "default";
> >> +    hdmi-phandle = <&hdmi_tx>;
> >> +};
> >> +
> >> +&clkc_audio {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&cvbs_vdac_port {
> >> +    cvbs_vdac_out: endpoint {
> >> +            remote-endpoint = <&cvbs_connector_in>;
> >> +    };
> >> +};
> >> +
> >> +&ethmac {
> >> +    pinctrl-0 = <&eth_pins>, <&eth_rgmii_pins>, <&eth_phy_irq_pins>;
> >> +    pinctrl-names = "default";
> >> +    status = "okay";
> >> +    phy-mode = "rgmii";
> >> +    phy-handle = <&external_phy>;
> >> +    amlogic,tx-delay-ns = <2>;
> >> +};
> >> +
> >> +&ext_mdio {
> >> +    external_phy: ethernet-phy@0 {
> >> +            /* Realtek RTL8211F (0x001cc916) */
> >> +            reg = <0>;
> >> +            max-speed = <1000>;
> >> +
> >> +            reset-assert-us = <100000>;
> >> +            reset-deassert-us = <100000>;
> >> +            reset-gpios = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
> >> +
> >> +            interrupt-parent = <&gpio_intc>;
> >> +            /* MAC_INTR on GPIOZ_14 */
> >> +            interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
> >> +    };
> >> +};
> >> +
> >> +&frddr_a {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&frddr_b {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&frddr_c {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&hdmi_tx {
> >> +    status = "okay";
> >> +    pinctrl-0 = <&hdmitx_hpd_pins>, <&hdmitx_ddc_pins>;
> >> +    pinctrl-names = "default";
> >> +    hdmi-supply = <&vcc_5v>;
> >> +};
> >> +
> >> +&hdmi_tx_tmds_port {
> >> +    hdmi_tx_tmds_out: endpoint {
> >> +            remote-endpoint = <&hdmi_connector_in>;
> >> +    };
> >> +};
> >> +
> >> +&ir {
> >> +    status = "okay";
> >> +    pinctrl-0 = <&remote_input_ao_pins>;
> >> +    pinctrl-names = "default";
> >> +};
> >> +
> >> +&npu {
> >> +    status = "okay";
> >> +};
> >
> > Are you sure you want this enabled ?
> > AFAIK if etnaviv is enabled, it will be used first as a render node by mesa and fail.
> >
>
> AFAIK, it is enabled in the pre-flashed bootloader that is running
> debian, fedora and opensuse ... but etnaviv is blacklisted there
>
> It should indeed be removed.
>
>

Yes, let's remove this until there are future developments in this
area. We will add it to our tooling to enable separately.

> >> +
> >> +&periphs_pinctrl {
> >> +    spi_cs_disable_pins: spi-cs-disable {
> >> +            mux {
> >> +                    groups = "BOOT_14";
> >> +                    function = "gpio_periphs";
> >> +                    bias-disable;
> >> +                    output-high;
> >> +            };
> >> +    };
> >> +
> >> +    eth_phy_irq_pins: eth-phy-irq {
> >> +            mux {
> >> +                    groups = "GPIOZ_14";
> >> +                    function = "gpio_periphs";
> >> +                    bias-pull-up;
> >> +                    output-disable;
> >> +            };
> >> +    };
> >> +};
> >> +
> >> +&pwm_AO_cd {
> >> +    status = "okay";
> >> +    pinctrl-0 = <&pwm_ao_d_e_pins>;
> >> +    pinctrl-names = "default";
> >> +    clocks = <&xtal>;
> >> +    clock-names = "clkin1";
> >> +};
> >> +
> >> +&pwm_ab {
> >> +    status = "okay";
> >> +    pinctrl-0 = <&pwm_b_x7_pins>;
> >> +    pinctrl-names = "default";
> >> +    clocks = <&xtal>;
> >> +    clock-names = "clkin1";
> >> +};
> >> +
> >> +&pwm_cd {
> >> +    status = "okay";
> >> +    pinctrl-0 = <&pwm_d_x3_pins>;
> >> +    pinctrl-names = "default";
> >> +    clocks = <&xtal>;
> >> +    clock-names = "clkin1";
> >> +};
> >> +
> >> +&saradc {
> >> +    status = "okay";
> >> +    vref-supply = <&vddio_ao18>;
> >> +};
> >> +
> >> +/* SD card */
> >> +&sd_emmc_b {
> >> +    status = "okay";
> >> +    pinctrl-0 = <&sdcard_c_pins>;
> >> +    pinctrl-1 = <&sdcard_clk_gate_c_pins>;
> >> +    pinctrl-names = "default", "clk-gate";
> >> +
> >> +    bus-width = <4>;
> >> +    cap-sd-highspeed;
> >> +    sd-uhs-sdr12;
> >> +    sd-uhs-sdr25;
> >> +    sd-uhs-sdr50;
> >> +    sd-uhs-sdr104;
> >> +    max-frequency = <200000000>;
> >> +    disable-wp;
> >> +
> >> +    cd-gpios = <&gpio GPIOC_6 GPIO_ACTIVE_LOW>;
> >> +    vmmc-supply = <&vcc_card>;
> >> +    vqmmc-supply = <&vddio_c>;
> >> +};
> >> +
> >> +/*
> >> + * EMMC_D4, EMMC_D5, EMMC_D6 and EMMC_D7 pins are shared between SPI NOR CS
> >> + * and eMMC Data 4 to 7 pins.
> >> + * Replace emmc_data_8b_pins to emmc_data_4b_pins from sd_emmc_c pinctrl-0,
> >> + * and change bus-width to 4 then spifc can be enabled.
> >> + */
> >> +&sd_emmc_c {
> >> +    status = "okay";
> >> +    pinctrl-0 = <&emmc_ctrl_pins>, <&emmc_data_8b_pins>, <&emmc_ds_pins>,
> >> +                <&spi_cs_disable_pins>;
> >> +    pinctrl-1 = <&emmc_clk_gate_pins>;
> >> +    pinctrl-names = "default", "clk-gate";
> >> +
> >> +    bus-width = <8>;
> >> +    cap-mmc-highspeed;
> >> +    mmc-hs200-1_8v;
> >> +    max-frequency = <200000000>;
> >> +    disable-wp;
> >> +
> >> +    mmc-pwrseq = <&emmc_pwrseq>;
> >> +    vmmc-supply = <&vcc_3v3>;
> >> +    vqmmc-supply = <&flash_1v8>;
> >> +};
> >> +
> >> +&spifc {
> >> +    status = "disabled";
> >> +    pinctrl-0 = <&nor_pins>;
> >> +    pinctrl-names = "default";
> >> +    cs-gpios = <&gpio BOOT_14 GPIO_ACTIVE_LOW>;
> >> +
> >> +    w25lq128d: flash@0 {
> >> +            compatible = "jedec,spi-nor";
> >> +            reg = <0>;
> >> +            #address-cells = <1>;
> >> +            #size-cells = <1>;
> >> +            spi-max-frequency = <80000000>;
> >> +    };
> >> +};
> >> +
> >> +&tdmif_a {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&tdmif_b {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&tdmif_c {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&tdmin_a {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&tdmin_b {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&tdmin_c {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&tdmout_a {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&tdmout_b {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&tdmout_c {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&toacodec {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&toddr_a {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&toddr_b {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&toddr_c {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&tohdmitx {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&uart_AO {
> >> +    status = "okay";
> >> +    pinctrl-0 = <&uart_ao_a_pins>;
> >> +    pinctrl-names = "default";
> >> +};
> >> +
> >> +&usb2_phy1 {
> >> +    phy-supply = <&dc_in>;
> >> +};
> >> +
> >> +&usb3_pcie_phy {
> >> +    #address-cells = <1>;
> >> +    #size-cells = <0>;
> >> +    phy-supply = <&vcc_5v>;
> >> +
> >> +    hub: hub@1 {
> >> +            compatible = "usb5e3,626";
> >> +            reg = <1>;
> >> +            reset-gpios = <&gpio GPIOC_7 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
> >> +    };
> >
> > Not sure the PHY is the right place to put the USB HUB,
> > and it's probable the HUB is connected to both the USB2 and USB3 lines
>
> It is connected to the USB3.0 only

https://drive.google.com/file/d/17WNK9m8VZ9CfS7GMiTLdq1zHsmHR4OcV/view

USBHOST_A_DM and USBHOST_A_DP are connected to the USB 3 hub DM0 and DP0.
Not sure if this counts?

>
> > so you should have both USB IDs in DT like it'd done for the Odroid-C4:
> >
> > / {
> > ...
> >          /* USB hub supports both USB 2.0 and USB 3.0 root hub */
> >          usb-hub {
> >                  dr_mode = "host";
> >                  #address-cells = <1>;
> >                  #size-cells = <0>;
> >
> >                  /* 2.0 hub on port 1 */
> >                  hub_2_0: hub@1 {
> >                          compatible = "usb2109,2817";
> >                          reg = <1>;
> >                          peer-hub = <&hub_3_0>;
> >                          reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
> >                          vdd-supply = <&vcc_5v>;
> >                  };
> >
> >                  /* 3.1 hub on port 4 */
> >                  hub_3_0: hub@2 {
> >                          compatible = "usb2109,817";
> >                          reg = <2>;
> >                          peer-hub = <&hub_2_0>;
> >                          reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
> >                          vdd-supply = <&vcc_5v>;
> >                  };
> >          };
> > ...
> > };
> >
> > if it only has a single USB ID, then it should go under the dwc3 node.
>
> The usb controller is connected to the PHY and what's coming out of the PHY
> goes to the hub. It seems logical to hub the hub under it.
>
> Why bypass the PHY ?
>
> >
> >> +};
> >> +
> >> +&usb {
> >> +    status = "okay";
> >> +};
> >> diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-s905d3-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-s905d3-libretech-cc.dts
> >> new file mode 100644
> >> index 000000000000..077e7506ce4f
> >> --- /dev/null
> >> +++ b/arch/arm64/boot/dts/amlogic/meson-sm1-s905d3-libretech-cc.dts
> >> @@ -0,0 +1,89 @@
> >> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> >> +/*
> >> + * Copyright (c) 2023 BayLibre, SAS.
> >> + * Author: Jerome Brunet <jbrunet@...libre.com>
> >> + */
> >> +
> >> +/dts-v1/;
> >> +
> >> +#include <dt-bindings/clock/g12a-clkc.h>
> >> +#include "meson-sm1.dtsi"
> >> +#include "meson-libretech-cottonwood.dtsi"
> >> +
> >> +/ {
> >> +    compatible = "libretech,aml-s905d3-cc", "amlogic,sm1";
> >> +    model = "Libre Computer AML-S905D3-CC Solitude";
> >> +
> >> +    sound {
> >> +            model = "Solitude";
> >> +            audio-routing = "TDMOUT_A IN 0", "FRDDR_A OUT 0",
> >> +                            "TDMOUT_A IN 1", "FRDDR_B OUT 0",
> >> +                            "TDMOUT_A IN 2", "FRDDR_C OUT 0",
> >> +                            "TDM_A Playback", "TDMOUT_A OUT",
> >> +                            "TDMOUT_B IN 0", "FRDDR_A OUT 1",
> >> +                            "TDMOUT_B IN 1", "FRDDR_B OUT 1",
> >> +                            "TDMOUT_B IN 2", "FRDDR_C OUT 1",
> >> +                            "TDM_B Playback", "TDMOUT_B OUT",
> >> +                            "TDMOUT_C IN 0", "FRDDR_A OUT 2",
> >> +                            "TDMOUT_C IN 1", "FRDDR_B OUT 2",
> >> +                            "TDMOUT_C IN 2", "FRDDR_C OUT 2",
> >> +                            "TDM_C Playback", "TDMOUT_C OUT",
> >> +                            "TDMIN_A IN 0", "TDM_A Capture",
> >> +                            "TDMIN_B IN 0", "TDM_A Capture",
> >> +                            "TDMIN_C IN 0", "TDM_A Capture",
> >> +                            "TDMIN_A IN 13", "TDM_A Loopback",
> >> +                            "TDMIN_B IN 13", "TDM_A Loopback",
> >> +                            "TDMIN_C IN 13", "TDM_A Loopback",
> >> +                            "TDMIN_A IN 1", "TDM_B Capture",
> >> +                            "TDMIN_B IN 1", "TDM_B Capture",
> >> +                            "TDMIN_C IN 1", "TDM_B Capture",
> >> +                            "TDMIN_A IN 14", "TDM_B Loopback",
> >> +                            "TDMIN_B IN 14", "TDM_B Loopback",
> >> +                            "TDMIN_C IN 14", "TDM_B Loopback",
> >> +                            "TDMIN_A IN 2", "TDM_C Capture",
> >> +                            "TDMIN_B IN 2", "TDM_C Capture",
> >> +                            "TDMIN_C IN 2", "TDM_C Capture",
> >> +                            "TDMIN_A IN 15", "TDM_C Loopback",
> >> +                            "TDMIN_B IN 15", "TDM_C Loopback",
> >> +                            "TDMIN_C IN 15", "TDM_C Loopback",
> >> +                            "TODDR_A IN 0", "TDMIN_A OUT",
> >> +                            "TODDR_B IN 0", "TDMIN_A OUT",
> >> +                            "TODDR_C IN 0", "TDMIN_A OUT",
> >> +                            "TODDR_A IN 1", "TDMIN_B OUT",
> >> +                            "TODDR_B IN 1", "TDMIN_B OUT",
> >> +                            "TODDR_C IN 1", "TDMIN_B OUT",
> >> +                            "TODDR_A IN 2", "TDMIN_C OUT",
> >> +                            "TODDR_B IN 2", "TDMIN_C OUT",
> >> +                            "TODDR_C IN 2", "TDMIN_C OUT",
> >> +                            "Lineout", "ACODEC LOLP",
> >> +                            "Lineout", "ACODEC LORP";
> >> +    };
> >> +};
> >> +
> >> +&cpu0 {
> >> +    cpu-supply = <&vddcpu_b>;
> >> +    operating-points-v2 = <&cpu_opp_table>;
> >> +    clocks = <&clkc CLKID_CPU_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >> +
> >> +&cpu1 {
> >> +    cpu-supply = <&vddcpu_b>;
> >> +    operating-points-v2 = <&cpu_opp_table>;
> >> +    clocks = <&clkc CLKID_CPU1_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >> +
> >> +&cpu2 {
> >> +    cpu-supply = <&vddcpu_b>;
> >> +    operating-points-v2 = <&cpu_opp_table>;
> >> +    clocks = <&clkc CLKID_CPU2_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >> +
> >> +&cpu3 {
> >> +    cpu-supply = <&vddcpu_b>;
> >> +    operating-points-v2 = <&cpu_opp_table>;
> >> +    clocks = <&clkc CLKID_CPU3_CLK>;
> >> +    clock-latency = <50000>;
> >> +};
> >
> > Apart that, it looks fine,
> >
> >
> > Thanks,
> > Neil
>
>
> _______________________________________________
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