lkml.org 
[lkml]   [2020]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 5/6] arm64: dts: ti: k3-j721e: Enable Super-Speed support for USB0
Date
USB0 supports super-speed mode on the EVM. Enable that.
On the EVM, USB0 uses SERDES3 for super-speed lane.

Since USB0 is a type-C port, it needs to support lane swapping
for cable flip support. This is provided using SERDES lane
swap feature. Provide the Type-C cable orientation GPIO
to the SERDES Wrapper driver.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
.../dts/ti/k3-j721e-common-proc-board.dts | 32 +++++++++++++++++--
1 file changed, 30 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 6df823aaa37c..3294b96ebba8 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -60,6 +60,7 @@
main_usbss0_pins_default: main_usbss0_pins_default {
pinctrl-single,pins = <
J721E_IOPAD(0x290, PIN_OUTPUT, 0) /* (U6) USB0_DRVVBUS */
+ J721E_IOPAD(0x210, PIN_INPUT, 7) /* (W3) MCAN1_RX.GPIO1_3 */
>;
};

@@ -335,16 +336,43 @@
status = "disabled";
};

+&usb_serdes_mux {
+ idle-states = <1>, <0>; /* USB0 to SERDES3, USB1 to SERDES1 */
+};
+
+&serdes_ln_ctrl {
+ idle-states = <SERDES0_LANE0_PCIE0_LANE0>, <SERDES0_LANE1_PCIE0_LANE1>,
+ <SERDES1_LANE0_PCIE1_LANE0>, <SERDES1_LANE1_PCIE1_LANE1>,
+ <SERDES2_LANE0_PCIE2_LANE0>, <SERDES2_LANE1_PCIE2_LANE1>,
+ <SERDES3_LANE0_USB3_0_SWAP>, <SERDES3_LANE1_USB3_0>,
+ <SERDES4_LANE0_EDP_LANE0>, <SERDES4_LANE1_EDP_LANE1>, <SERDES4_LANE2_EDP_LANE2>, <SERDES4_LANE3_EDP_LANE3>;
+};
+
+&serdes_wiz3 {
+ typec-dir-gpios = <&main_gpio1 3 GPIO_ACTIVE_HIGH>;
+};
+
+&serdes3 {
+ serdes3_usb_link: link@0 {
+ reg = <0>;
+ cdns,num-lanes = <2>;
+ #phy-cells = <0>;
+ cdns,phy-type = <PHY_TYPE_USB3>;
+ resets = <&serdes_wiz3 1>, <&serdes_wiz3 2>;
+ };
+};
+
&usbss0 {
pinctrl-names = "default";
pinctrl-0 = <&main_usbss0_pins_default>;
- ti,usb2-only;
ti,vbus-divider;
};

&usb0 {
dr_mode = "otg";
- maximum-speed = "high-speed";
+ maximum-speed = "super-speed";
+ phys = <&serdes3_usb_link>;
+ phy-names = "cdns3,usb3-phy";
};

&usbss1 {
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
\
 
 \ /
  Last update: 2020-06-29 22:17    [W:0.074 / U:18.356 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site