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Add some limited support for low-speed devices to SL811 USB controller 

(at least "usb reset" now passes successfully and "usb info" displays
correct information)
This commit is contained in:
wdenk 2004-05-11 21:53:55 +00:00
parent baac607c13
commit 9d9e283790
2 changed files with 7 additions and 2 deletions
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4
CHANGELOG
View File

@ -2,6 +2,10 @@
Changes since U-Boot 1.1.1:
======================================================================
* Add some limited support for low-speed devices to SL811 USB controller
(at least "usb reset" now passes successfully and "usb info" displays
correct information)
* Change init sequence for multiple network interfaces: initialize
on-chip interfaces before external cards.

5
drivers/sl811_usb.c
View File

@ -228,7 +228,7 @@ int usb_lowlevel_stop(void)
static int calc_needed_buswidth(int bytes, int low_speed)
{
return bytes * 8 + 512;
return low_speed ? 0 : bytes * 8 + 512;
}
static int sl811_send_packet(int dir_to_host, int data1, __u8 *buffer, int len)
@ -253,7 +253,8 @@ static int sl811_send_packet(int dir_to_host, int data1, __u8 *buffer, int len)
if (!dir_to_host && len)
sl811_write_buf(0x10, buffer, len);
if (sl811_read(SL811_SOFCNTDIV)*64 < calc_needed_buswidth(len, 0))
if (sl811_read(SL811_SOFCNTDIV)*64 <
calc_needed_buswidth(len, rh_status.wPortStatus & USB_PORT_STAT_LOW_SPEED))
ctrl |= SL811_USB_CTRL_SOF;
else
ctrl &= ~SL811_USB_CTRL_SOF;