From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EA6F9C4828D for ; Wed, 7 Feb 2024 12:42:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Cj9c/mG46ZbqNl8AFZ5oNQNSbC1dYwklbeKWIIgH1qk=; b=Pb8GnLTb6sTZv7 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linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20240205135908.54656-1-rogerq@kernel.org> <20240205135908.54656-4-rogerq@kernel.org> <45a0ed98-8dd2-4c5b-8e89-40c70e3fe831@ti.com> <77f7b127-e609-45e3-90aa-67aa7838ce6b@kernel.org> <8f9e8ec5-fc78-4b51-b36f-3ba06768ce62@ti.com> From: Roger Quadros In-Reply-To: <8f9e8ec5-fc78-4b51-b36f-3ba06768ce62@ti.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240207_044222_185198_79C3733B X-CRM114-Status: GOOD ( 18.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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12:42:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707309740; bh=NC/M4lBc3klYSGIi2NaiARJesFYei1g1w2rS9yFOXuk=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=bNePkl8UG2rG5iD3165+0CEWxyn1b5Ixd1hZvgdAotnzJWqnwPvts0rabBRjFi//B KBA8ULajSIp1mKJayMH48Hs2O27/8g2S2wOtlj9IEjwk7rFVzL37r4Iml6jcqHmKAG NGZTH2QUasjHMV0pdUu/vLBUiEywBcuAvOh+8GmycrfnoVwtzXllwnexdN7JOcPQgf zO8MmNdf8s9TKCREJmNrqokQwd8B+7b4qUFgatkqeQYw/5IseVm3eedCvaTUBmfwRD mvNay/xdB/H7sfdRFB2Zwol6WshPO9fqWvuOxDRUa9ujd93KDhGXbY2wGjKAvtSncM QAiKFxIGyCCww== Message-ID: Date: Wed, 7 Feb 2024 14:42:14 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 3/3] arm64: dts: ti: k3-am62p: add the USB sub-system Content-Language: en-US To: Andrew Davis , nm@ti.com, vigneshr@ti.com Cc: kristo@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, srk@ti.com, r-gunasekaran@ti.com, b-liu@ti.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20240205135908.54656-1-rogerq@kernel.org> <20240205135908.54656-4-rogerq@kernel.org> <45a0ed98-8dd2-4c5b-8e89-40c70e3fe831@ti.com> <77f7b127-e609-45e3-90aa-67aa7838ce6b@kernel.org> <8f9e8ec5-fc78-4b51-b36f-3ba06768ce62@ti.com> From: Roger Quadros In-Reply-To: <8f9e8ec5-fc78-4b51-b36f-3ba06768ce62@ti.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 06/02/2024 19:34, Andrew Davis wrote: > On 2/6/24 6:30 AM, Roger Quadros wrote: >> >> >> On 05/02/2024 19:34, Andrew Davis wrote: >>> On 2/5/24 7:59 AM, Roger Quadros wrote: >>>> There are two USB instances available on the am62p5 starter kit. Include >>>> and enable them for use on the board. >>>> >>>> Signed-off-by: Vignesh Raghavendra >>>> Signed-off-by: Roger Quadros >>>> --- >>>> >>>> Notes: >>>>       Changelog: >>>>            v4 - no change >>>>            v3 - no change >>>>       https://lore.kernel.org/all/20240201120332.4811-4-rogerq@kernel.org/ >>>>            v2: >>>>       - added USB PHY CTRL node changes here >>>>       - changed USB wrapper node names to usb@ >>>>       - changed Type-C chip node name to usb-power-control@ >>>> >>>>    arch/arm64/boot/dts/ti/k3-am62p-main.dtsi   | 46 ++++++++++++++ >>>>    arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi | 10 +++ >>>>    arch/arm64/boot/dts/ti/k3-am62p5-sk.dts     | 67 +++++++++++++++++++++ >>>>    3 files changed, 123 insertions(+) >>>> >>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi >>>> index 4c51bae06b57..17d28390d587 100644 >>>> --- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi >>>> +++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi >>>> @@ -560,6 +560,52 @@ sdhci2: mmc@fa20000 { >>>>            status = "disabled"; >>>>        }; >>>>    +    usbss0: usb@f900000 { >>>> +        compatible = "ti,am62-usb"; >>>> +        reg = <0x00 0x0f900000 0x00 0x800>; >>>> +        clocks = <&k3_clks 161 3>; >>>> +        clock-names = "ref"; >>>> +        ti,syscon-phy-pll-refclk = <&usb0_phy_ctrl 0x0>; >>>> +        #address-cells = <2>; >>>> +        #size-cells = <2>; >>>> +        power-domains = <&k3_pds 178 TI_SCI_PD_EXCLUSIVE>; >>>> +        ranges; >>>> +        status = "disabled"; >>>> + >>>> +        usb0: usb@31000000 { >>>> +            compatible = "snps,dwc3"; >>>> +            reg = <0x00 0x31000000 0x00 0x50000>; >>>> +            interrupts = , /* irq.0 */ >>>> +            ; /* irq.0 */ >>>> +            interrupt-names = "host", "peripheral"; >>>> +            maximum-speed = "high-speed"; >>>> +            dr_mode = "otg"; >>>> +        }; >>>> +    }; >>>> + >>>> +    usbss1: usb@f910000 { >>>> +        compatible = "ti,am62-usb"; >>>> +        reg = <0x00 0x0f910000 0x00 0x800>; >>>> +        clocks = <&k3_clks 162 3>; >>>> +        clock-names = "ref"; >>>> +        ti,syscon-phy-pll-refclk = <&usb1_phy_ctrl 0x0>; >>>> +        #address-cells = <2>; >>>> +        #size-cells = <2>; >>>> +        power-domains = <&k3_pds 179 TI_SCI_PD_EXCLUSIVE>; >>>> +        ranges; >>>> +        status = "disabled"; >>>> + >>>> +        usb1: usb@31100000 { >>>> +            compatible = "snps,dwc3"; >>>> +            reg = <0x00 0x31100000 0x00 0x50000>; >>>> +            interrupts = , /* irq.0 */ >>>> +            ; /* irq.0 */ >>>> +            interrupt-names = "host", "peripheral"; >>>> +            maximum-speed = "high-speed"; >>>> +            dr_mode = "otg"; >>>> +        }; >>>> +    }; >>>> + >>>>        fss: bus@fc00000 { >>>>            compatible = "simple-bus"; >>>>            reg = <0x00 0x0fc00000 0x00 0x70000>; >>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi >>>> index 19f42b39394e..00dd38b02a52 100644 >>>> --- a/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi >>>> +++ b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi >>>> @@ -18,6 +18,16 @@ chipid: chipid@14 { >>>>                reg = <0x14 0x4>; >>>>                bootph-all; >>>>            }; >>>> + >>>> +        usb0_phy_ctrl: syscon@4008 { >>>> +            compatible = "ti,am62-usb-phy-ctrl", "syscon"; >>>> +            reg = <0x4008 0x4>; >>>> +        }; >>>> + >>>> +        usb1_phy_ctrl: syscon@4018 { >>>> +            compatible = "ti,am62-usb-phy-ctrl", "syscon"; >>>> +            reg = <0x4018 0x4>; >>>> +        }; >>>>        }; >>>>          wkup_uart0: serial@2b300000 { >>>> diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts >>>> index 1773c05f752c..80be56c0a4e0 100644 >>>> --- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts >>>> +++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts >>>> @@ -27,6 +27,8 @@ aliases { >>>>            spi0 = &ospi0; >>>>            ethernet0 = &cpsw_port1; >>>>            ethernet1 = &cpsw_port2; >>>> +        usb0 = &usb0; >>>> +        usb1 = &usb1; >>>>        }; >>>>          chosen { >>>> @@ -297,6 +299,12 @@ AM62PX_IOPAD(0x01b0, PIN_OUTPUT, 2) /* (G20) MCASP0_ACLKR.UART1_TXD */ >>>>            bootph-all; >>>>        }; >>>>    +    main_usb1_pins_default: main-usb1-default-pins { >>>> +        pinctrl-single,pins = < >>>> +            AM62PX_IOPAD(0x0258, PIN_INPUT, 0) /* (G21) USB1_DRVVBUS */ >>>> +        >; >>>> +    }; >>>> + >>>>        main_wlirq_pins_default: main-wlirq-default-pins { >>>>            pinctrl-single,pins = < >>>>                AM62PX_IOPAD(0x0128, PIN_INPUT, 7) /* (K25) MMC2_SDWP.GPIO0_72 */ >>>> @@ -340,6 +348,36 @@ AM62PX_IOPAD(0x0124, PIN_INPUT, 7) /* (J25) MMC2_SDCD.GPIO0_71 */ >>>>        }; >>>>    }; >>>>    +&main_i2c0 { >>>> +    status = "okay"; >>>> +    pinctrl-names = "default"; >>>> +    pinctrl-0 = <&main_i2c0_pins_default>; >>>> +    clock-frequency = <400000>; >>>> + >>>> +    typec_pd0: usb-power-controller@3f { >>>> +        compatible = "ti,tps6598x"; >>>> +        reg = <0x3f>; >>>> + >>>> +        connector { >>>> +            compatible = "usb-c-connector"; >>>> +            label = "USB-C"; >>>> +            self-powered; >>>> +            data-role = "dual"; >>>> +            power-role = "sink"; >>>> +            ports { >>>> +                #address-cells = <1>; >>>> +                #size-cells = <0>; >>>> +                port@0 { >>>> +                    reg = <0>; >>>> +                    usb_con_hs: endpoint { >>>> +                        remote-endpoint = <&usb0_hs_ep>; >>>> +                    }; >>>> +                }; >>>> +            }; >>>> +        }; >>>> +    }; >>>> +}; >>>> + >>>>    &main_i2c1 { >>>>        status = "okay"; >>>>        pinctrl-names = "default"; >>>> @@ -460,6 +498,35 @@ cpsw3g_phy1: ethernet-phy@1 { >>>>        }; >>>>    }; >>>>    +&usbss0 { >>>> +    status = "okay"; >>>> +    ti,vbus-divider; >>>> +}; >>>> + >>>> +&usbss1 { >>>> +    status = "okay"; >>>> +    ti,vbus-divider; >>>> +}; >>>> + >>>> +&usb0 { >>>> +    usb-role-switch; >>>> +    #address-cells = <1>; >>>> +    #size-cells = <0>; >>>> + >>>> +    port@0 { >>>> +        reg = <0>; >>>> +        usb0_hs_ep: endpoint { >>>> +            remote-endpoint = <&usb_con_hs>; >>>> +        }; >>>> +    }; >>>> +}; >>>> + >>>> +&usb1 { >>>> +    dr_mode = "host"; >>>> +    pinctrl-names = "default"; >>>> +    pinctrl-0 = <&main_usb1_pins_default>; >>> >>> I'm not super familiar with USB, but I see this pinmux for the >>> "DRVVBUS" pin is usually added the the parent USB subsystem node (usbss). >>> Does this pin belong to the subsystem or the specific USB instance? >>> >> There is only 1 USB instance per USB sub-system. >> The "DRVVBUS" pin is a control signal to enable the VBUS regulator >> while in host mode. >> >> Just probing the usbss1 driver has no use of "DRVVBUS". >> I think usb1 is the right place as it is used there. >> > > Seems reasonable, so if there ever was more than 1 instance > per sub-system, each instance would need its own pin? Yes. > > We should move these pinctrl to the instance node in the other > dts files at some point then. > > Reviewed-by: Andrew Davis Thanks! > >>> Andrew >>> >>>> +}; >>>> + >>>>    &mcasp1 { >>>>        status = "okay"; >>>>        #sound-dai-cells = <0>; >> -- cheers, -roger