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From: Roger Quadros <rogerq@ti.com>
To: <t-kristo@ti.com>, <nm@ti.com>
Cc: <robh+dt@kernel.org>, <linux-kernel@vger.kernel.org>,
	<devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>, <nsekhar@ti.com>,
	<kishon@ti.com>, Roger Quadros <rogerq@ti.com>
Subject: [PATCH v3 6/6] arm64: dts: ti: k3-j7200-common-proc-board: Add USB support
Date: Tue, 15 Sep 2020 14:20:38 +0300	[thread overview]
Message-ID: <20200915112038.30219-7-rogerq@ti.com> (raw)
In-Reply-To: <20200915112038.30219-1-rogerq@ti.com>

The board uses lane 3 of SERDES for USB. Set the mux
accordingly.

The USB controller and EVM supports super-speed for USB0
on the Type-C port. However, the SERDES has a limitation
that upto 2 protocols can be used at a time. The SERDES is
wired for PCIe, QSGMII and USB super-speed. It has been
chosen to use PCI2 and QSGMII as default. So restrict
USB0 to high-speed mode.

Signed-off-by: Roger Quadros <rogerq@ti.com>
---
 .../dts/ti/k3-j7200-common-proc-board.dts     | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
index 0ecaba600704..5ce3fddbd617 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
@@ -42,6 +42,12 @@
 			J721E_IOPAD(0xe4, PIN_INPUT, 8) /* (V1) TIMER_IO0.MMC1_SDCD */
 		>;
 	};
+
+	main_usbss0_pins_default: main-usbss0-pins-default {
+		pinctrl-single,pins = <
+			J721E_IOPAD(0x120, PIN_OUTPUT, 0) /* (T4) USB0_DRVVBUS */
+		>;
+	};
 };
 
 &wkup_uart0 {
@@ -145,3 +151,19 @@
 	idle-states = <SERDES0_LANE0_PCIE1_LANE0>, <SERDES0_LANE1_PCIE1_LANE1>,
 		      <SERDES0_LANE2_QSGMII_LANE1>, <SERDES0_LANE3_IP4_UNUSED>;
 };
+
+&usb_serdes_mux {
+	idle-states = <1>; /* USB0 to SERDES lane 3 */
+};
+
+&usbss0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_usbss0_pins_default>;
+	ti,vbus-divider;
+	ti,usb2-only;
+};
+
+&usb0 {
+	dr_mode = "otg";
+	maximum-speed = "high-speed";
+};
-- 
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki


WARNING: multiple messages have this Message-ID (diff)
From: Roger Quadros <rogerq@ti.com>
To: <t-kristo@ti.com>, <nm@ti.com>
Cc: devicetree@vger.kernel.org, nsekhar@ti.com,
	linux-kernel@vger.kernel.org, kishon@ti.com, robh+dt@kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Roger Quadros <rogerq@ti.com>
Subject: [PATCH v3 6/6] arm64: dts: ti: k3-j7200-common-proc-board: Add USB support
Date: Tue, 15 Sep 2020 14:20:38 +0300	[thread overview]
Message-ID: <20200915112038.30219-7-rogerq@ti.com> (raw)
In-Reply-To: <20200915112038.30219-1-rogerq@ti.com>

The board uses lane 3 of SERDES for USB. Set the mux
accordingly.

The USB controller and EVM supports super-speed for USB0
on the Type-C port. However, the SERDES has a limitation
that upto 2 protocols can be used at a time. The SERDES is
wired for PCIe, QSGMII and USB super-speed. It has been
chosen to use PCI2 and QSGMII as default. So restrict
USB0 to high-speed mode.

Signed-off-by: Roger Quadros <rogerq@ti.com>
---
 .../dts/ti/k3-j7200-common-proc-board.dts     | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
index 0ecaba600704..5ce3fddbd617 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
@@ -42,6 +42,12 @@
 			J721E_IOPAD(0xe4, PIN_INPUT, 8) /* (V1) TIMER_IO0.MMC1_SDCD */
 		>;
 	};
+
+	main_usbss0_pins_default: main-usbss0-pins-default {
+		pinctrl-single,pins = <
+			J721E_IOPAD(0x120, PIN_OUTPUT, 0) /* (T4) USB0_DRVVBUS */
+		>;
+	};
 };
 
 &wkup_uart0 {
@@ -145,3 +151,19 @@
 	idle-states = <SERDES0_LANE0_PCIE1_LANE0>, <SERDES0_LANE1_PCIE1_LANE1>,
 		      <SERDES0_LANE2_QSGMII_LANE1>, <SERDES0_LANE3_IP4_UNUSED>;
 };
+
+&usb_serdes_mux {
+	idle-states = <1>; /* USB0 to SERDES lane 3 */
+};
+
+&usbss0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_usbss0_pins_default>;
+	ti,vbus-divider;
+	ti,usb2-only;
+};
+
+&usb0 {
+	dr_mode = "otg";
+	maximum-speed = "high-speed";
+};
-- 
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki


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  parent reply	other threads:[~2020-09-16  0:55 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-15 11:20 [PATCH v3 0/6] arm64: dts: ti: Add USB support for J7200 EVM Roger Quadros
2020-09-15 11:20 ` Roger Quadros
2020-09-15 11:20 ` [PATCH v3 1/6] dt-bindings: mux-j7200-wiz: Add lane function defines Roger Quadros
2020-09-15 11:20   ` Roger Quadros
2020-09-16  4:52   ` Peter Rosin
2020-09-16  4:52     ` Peter Rosin
2020-09-16 15:45     ` Nishanth Menon
2020-09-16 15:45       ` Nishanth Menon
2020-09-17  9:45       ` Peter Rosin
2020-09-17  9:45         ` Peter Rosin
2020-09-17 12:27         ` Nishanth Menon
2020-09-17 12:27           ` Nishanth Menon
2020-09-17 12:53           ` Peter Rosin
2020-09-17 12:53             ` Peter Rosin
2020-09-17 13:00             ` Nishanth Menon
2020-09-17 13:00               ` Nishanth Menon
2020-09-17 10:17       ` Kishon Vijay Abraham I
2020-09-17 10:17         ` Kishon Vijay Abraham I
2020-09-17 12:36         ` Nishanth Menon
2020-09-17 12:36           ` Nishanth Menon
2020-09-17 12:00       ` Roger Quadros
2020-09-17 12:00         ` Roger Quadros
2020-09-17 12:14         ` Nishanth Menon
2020-09-17 12:14           ` Nishanth Menon
2020-09-17 12:37         ` Peter Rosin
2020-09-17 12:37           ` Peter Rosin
2020-09-17 12:51           ` Nishanth Menon
2020-09-17 12:51             ` Nishanth Menon
2020-09-15 11:20 ` [PATCH v3 2/6] arm64: dts: ti: k3-j7200-main: Add SERDES lane control mux Roger Quadros
2020-09-15 11:20   ` Roger Quadros
2020-09-15 11:20 ` [PATCH v3 3/6] arm64: dts: ti: k3-j7200-main.dtsi: Add USB to SERDES lane MUX Roger Quadros
2020-09-15 11:20   ` Roger Quadros
2020-09-15 11:20 ` [PATCH v3 4/6] arm64: dts: ti: k3-j7200-main: Add USB controller Roger Quadros
2020-09-15 11:20   ` Roger Quadros
2020-09-15 11:20 ` [PATCH v3 5/6] arm64: dts: ti: k3-j7200-common-proc-board: Configure the SERDES lane function Roger Quadros
2020-09-15 11:20   ` Roger Quadros
2020-09-15 11:20 ` Roger Quadros [this message]
2020-09-15 11:20   ` [PATCH v3 6/6] arm64: dts: ti: k3-j7200-common-proc-board: Add USB support Roger Quadros

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