Re: [U-Boot] [PATCH v2 10/17] tegra: usb: fdt: Add USB definitions for Tegra2 Seaboard

On 12/02/2011 07:11 PM, Simon Glass wrote:

We set up two USB ports, one of which can be host or device. For some reason the kernel version does enable both ports.

+++ b/board/nvidia/dts/tegra2-seaboard.dts

@@ -11,6 +11,12 @@ bootargs = "vmalloc=192M video=tegrafb console=ttyS0,115200n8 root=/dev/mmcblk1p3 rw rootwait"; };

•    aliases {
  

• /* This defines the order of our USB ports */
  

•            usb0 = "/usb@c5008000";
  

•            usb1 = "/usb@c5000000";
  

•    };
  

That's indented with spaces instead of TABs.

memory { device_type = "memory"; reg = < 0x00000000 0x40000000 >; @@ -31,6 +37,12 @@ };

usb@c5000000 {

• nvidia,vbus-gpio = <&gpio 24 0>; /* PD0 */
  

• nvidia,vbus-gpio = <&gpio 24 1>; /* PD0 high to enable vbus */
  

• support-host-mode;
  

• status = "okay";
  

That's the default, and tegra20.dtsi doesn't specify status = "disabled", so the status properties are redundant. You may want to specify a disabled status in tegra-seaboard.dts for the other USB port if it isn't used though.

• };
• usb@c5008000 {

• status = "okay";
  

  };

};