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Message-Id: <20230504-b4-v6-3-topic-boards-imx8mp-evk-dual-role-usb-v2-4-3889b1b2050c@pengutronix.de>
Date: Thu, 04 May 2023 15:46:53 +0200
From: Marco Felsch <m.felsch@...gutronix.de>
To: andreas@...al.se, jun.li@....com,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Bjorn Andersson <andersson@...nel.org>,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Guenter Roeck <linux@...ck-us.net>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>
Cc: linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Marco Felsch <m.felsch@...gutronix.de>
Subject: [PATCH v2 4/4] arm64: dts: imx8mp-evk: add dual-role usb port1
support
The i.MX8MP-EVK has a dual-role usb-type-c port marked as PORT1. By this
commit the dual-role support is added which allows the user-space to
assign usb-gadget functions to it via the configFS.
Below is the test results of a basic usbgadget-ethernet test using by
iperf3.
Accepted connection from 192.168.60.1, port 48172
[ 5] local 192.168.60.2 port 5201 connected to 192.168.60.1 port 48176
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 101 MBytes 850 Mbits/sec
[ 5] 1.00-2.00 sec 105 MBytes 883 Mbits/sec
[ 5] 2.00-3.00 sec 105 MBytes 885 Mbits/sec
...
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-100.04 sec 10.3 GBytes 882 Mbits/sec receiver
Accepted connection from 192.168.60.1, port 42104
[ 5] local 192.168.60.2 port 5201 connected to 192.168.60.1 port 42110
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 110 MBytes 925 Mbits/sec 0 540 KBytes
[ 5] 1.00-2.00 sec 112 MBytes 938 Mbits/sec 0 566 KBytes
[ 5] 2.00-3.00 sec 115 MBytes 969 Mbits/sec 0 566 KBytes
...
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-37.00 sec 4.27 GBytes 990 Mbits/sec 0 sender
Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
---
arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 88 ++++++++++++++++++++++++++++
1 file changed, 88 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index 7816853162b3..20c3c41d6209 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -5,7 +5,9 @@
/dts-v1/;
+#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/phy/phy-imx8-pcie.h>
+#include <dt-bindings/usb/pd.h>
#include "imx8mp.dtsi"
/ {
@@ -83,6 +85,22 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
+
+ usb-ss-mux {
+ compatible = "gpio-ss-mux";
+ enable-gpios = <&gpio2 20 GPIO_ACTIVE_LOW>;
+ select-gpios = <&gpio4 20 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb_ss_mux>;
+
+ orientation-switch;
+
+ port {
+ usb_ss_mux: endpoint {
+ remote-endpoint = <&usb_con_ss_mux>;
+ };
+ };
+ };
};
&flexspi {
@@ -336,6 +354,40 @@ &i2c2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c2>;
status = "okay";
+
+ tcpc@50 {
+ compatible = "nxp,ptn5110";
+ reg = <0x50>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_tcpc>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+
+ connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ power-role = "dual";
+ data-role = "dual";
+ try-power-role = "sink";
+ source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+ sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+ PDO_VAR(5000, 20000, 3000)>;
+ op-sink-microwatt = <15000000>;
+ self-powered;
+
+ port {
+ usb_con_ss_mux: endpoint {
+ remote-endpoint = <&usb_ss_mux>;
+ };
+ };
+ };
+
+ port {
+ usb_con_ss: endpoint {
+ remote-endpoint = <&usb_dwc3_0_drd>;
+ };
+ };
+ };
};
&i2c3 {
@@ -442,14 +494,37 @@ &uart2 {
status = "okay";
};
+&usb3_phy0 {
+ status = "okay";
+};
+
&usb3_phy1 {
status = "okay";
};
+&usb3_0 {
+ status = "okay";
+};
+
&usb3_1 {
status = "okay";
};
+&usb_dwc3_0 {
+ dr_mode = "otg";
+ hnp-disable;
+ srp-disable;
+ adp-disable;
+ usb-role-switch;
+ status = "okay";
+
+ port {
+ usb_dwc3_0_drd: endpoint {
+ remote-endpoint = <&usb_con_ss>;
+ };
+ };
+};
+
&usb_dwc3_1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usb1_vbus>;
@@ -659,6 +734,12 @@ MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19 0x40
>;
};
+ pinctrl_tcpc: tcpcgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI1_TXD7__GPIO4_IO19 0x1e0
+ >;
+ };
+
pinctrl_uart1: uart1grp {
fsl,pins = <
MX8MP_IOMUXC_UART1_RXD__UART1_DCE_RX 0x140
@@ -690,6 +771,13 @@ MX8MP_IOMUXC_ECSPI1_MISO__UART3_DCE_CTS 0x140
>;
};
+ pinctrl_usb_ss_mux: usbssmuxgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SD2_WP__GPIO2_IO20 0x104
+ MX8MP_IOMUXC_SAI1_MCLK__GPIO4_IO20 0x144
+ >;
+ };
+
pinctrl_usdhc2: usdhc2grp {
fsl,pins = <
MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x190
--
2.39.2
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