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[83.45.91.50]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3825fb4ecd8sm12851203f8f.60.2024.11.26.02.08.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Nov 2024 02:08:25 -0800 (PST) From: Enric Balletbo i Serra Date: Tue, 26 Nov 2024 11:08:19 +0100 Subject: [PATCH] arm64: dts: ti: k3-am69-sk: Add USB SuperSpeed support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241126-am69sk-dt-usb-v1-1-aa55aed7b89e@redhat.com> X-B4-Tracking: v=1; b=H4sIABKeRWcC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIxNDQyMz3cRcM8vibN2UEt3S4iRdC0tDC4PUNFOLNIsUJaCegqLUtMwKsHn RsbW1AD6mwZFfAAAA X-Change-ID: 20241126-am69sk-dt-usb-89180ef58f8d To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Dasnavis Sabiya , Enric Balletbo i Serra X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1732615705; l=2485; i=eballetb@redhat.com; s=20241113; h=from:subject:message-id; bh=bT/35JMF1+qLpDfXB2Q3jx1Ol/t4nxsjkwGX8bY51Jo=; b=7jrfrXs1ya8OfzpPtuUbESrW1gPpkkr97NF+q5NtsQDPkoHtxktfWvCWP3xFRyuifAGaqF1sa CY6Hs9aSQoPAGPlL1ge9DEYSisj6VWHBHQ2Kv9gb5vkRvlYiHceUzg3 X-Developer-Key: i=eballetb@redhat.com; a=ed25519; pk=xAM6APjLnjm98JkE7JdP1GytrxFUrcDLr+fvzW1Dlyw= From: Dasnavis Sabiya AM69 SK board has two stacked USB3 connectors: 1. USB3 (Stacked TypeA + TypeC) 2. USB3 TypeA Hub interfaced through TUSB8041. The board uses SERDES0 Lane 3 for USB3 IP. So update the SerDes lane info for PCIe and USB. Add the pin mux data and enable USB 3.0 support with its respective SERDES settings. Signed-off-by: Dasnavis Sabiya Signed-off-by: Enric Balletbo i Serra Reviewed-by: Roger Quadros --- I've been carrying this patch for quite long time in my builds to have support for USB on my AM69-SK board without problems. For some reason this patch was never send to upstream or I couldn't find it. So I took the opportunity, now that I rebased my build, to send upstream. I have maintained the original author of the downstream patch as is basically his work. --- arch/arm64/boot/dts/ti/k3-am69-sk.dts | 33 +++++++++++++++++++++++++++++++= ++ 1 file changed, 33 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti= /k3-am69-sk.dts index 1e36965a14032ca07143230855e04b9549f1d0d1..72797f4b689c1d069bf395d6d4f= e1846dc4e4297 100644 --- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts @@ -484,6 +484,12 @@ J784S4_IOPAD(0x09C, PIN_OUTPUT, 0) /* (AF35) MCAN7_TX = */ >; }; =20 + main_usbss0_pins_default: main-usbss0-default-pins { + pinctrl-single,pins =3D < + J784S4_IOPAD(0x0EC, PIN_OUTPUT, 6) /* (AN37) TIMER_IO1.USB0_DRVVBUS */ + >; + }; + }; =20 &wkup_pmx0 { @@ -1299,6 +1305,14 @@ serdes0_pcie_link: phy@0 { cdns,phy-type =3D ; resets =3D <&serdes_wiz0 1>, <&serdes_wiz0 2>, <&serdes_wiz0 3>; }; + + serdes0_usb_link: phy@3 { + reg =3D <3>; + cdns,num-lanes =3D <1>; + #phy-cells =3D <0>; + cdns,phy-type =3D ; + resets =3D <&serdes_wiz0 4>; + }; }; =20 &serdes_wiz1 { @@ -1339,3 +1353,22 @@ &pcie3_rc { phy-names =3D "pcie-phy"; num-lanes =3D <1>; }; + +&usb_serdes_mux { + idle-states =3D <0>; /* USB0 to SERDES0 */ +}; + +&usbss0 { + status =3D "okay"; + pinctrl-0 =3D <&main_usbss0_pins_default>; + pinctrl-names =3D "default"; + ti,vbus-divider; +}; + +&usb0 { + status =3D "okay"; + dr_mode =3D "host"; + maximum-speed =3D "super-speed"; + phys =3D <&serdes0_usb_link>; + phy-names =3D "cdns3,usb3-phy"; +}; --- base-commit: 7eef7e306d3c40a0c5b9ff6adc9b273cc894dbd5 change-id: 20241126-am69sk-dt-usb-89180ef58f8d Best regards, --=20 Enric Balletbo i Serra