Re: [U-Boot] [USB PATCH] USB change speed

Hello Michael,

2008/12/18 Michael Trimarchi trimarchi@gandalf.sssup.it:

USB changes the speed according to the port status

Signed-off-by: Michael Trimarchi trimarchimichael@yahoo.it

I applied this series to the u-boot-usb 'testing' branch. When it compiles properly and no regressions are being detected, I move it to the 'next' branch for the next U-boot release.

Thanks.

Remy

---

diff --git a/common/usb.c b/common/usb.c index 3138452..0c11746 100644 --- a/common/usb.c +++ b/common/usb.c @@ -1061,10 +1061,12 @@ static int hub_port_reset(struct usb_device *dev, int port, } portstatus = le16_to_cpu(portsts.wPortStatus); portchange = le16_to_cpu(portsts.wPortChange);

•          USB_HUB_PRINTF("portstatus %x, change %x, %s\n",
                           portstatus, portchange,
  

•                           portstatus&(1<<USB_PORT_FEAT_LOWSPEED) ? \
  

•                           portstatus & (1 << USB_PORT_FEAT_LOWSPEED) ? \
                                           "Low Speed" : "High Speed");
  

•          USB_HUB_PRINTF("STAT_C_CONNECTION = %d STAT_CONNECTION = %d" \
                          "  USB_PORT_STAT_ENABLE %d\n",
                   (portchange & USB_PORT_STAT_C_CONNECTION) ? 1 : 0,
  

@@ -1136,7 +1138,13 @@ void usb_hub_port_connect_change(struct usb_device *dev, int port)

   /* Allocate a new device struct for it */
   usb = usb_alloc_new_device();

•   usb->speed = (portstatus & USB_PORT_STAT_LOW_SPEED) ? 1 : 0;
  

•   if (portstatus & USB_PORT_STAT_HIGH_SPEED)
  

•           usb->speed = USB_SPEED_HIGH;
  

•   else if (portstatus & USB_PORT_STAT_LOW_SPEED)
  

•           usb->speed = USB_SPEED_LOW;
  

•   else
  

•           usb->speed = USB_SPEED_FULL;
  
   dev->children[port] = usb;
   usb->parent = dev;