This patch fixes an issue that the speed of USB devices was not detected correctly on some EHCI controllers. This will be used on the upcoming VCT EHCI support.
Signed-off-by: Stefan Roese sr@denx.de --- drivers/usb/usb_ehci_core.c | 17 ++++++++++++++++- 1 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/usb_ehci_core.c b/drivers/usb/usb_ehci_core.c index 9736707..28962fa 100644 --- a/drivers/usb/usb_ehci_core.c +++ b/drivers/usb/usb_ehci_core.c @@ -546,7 +546,22 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, } if (reg & EHCI_PS_PP) tmpbuf[1] |= USB_PORT_STAT_POWER >> 8; - tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8; + + if (ehci_is_TDI()) { + switch ((reg >> 26) & 3) { + case 0: + break; + case 1: + tmpbuf[1] |= USB_PORT_STAT_LOW_SPEED >> 8; + break; + case 2: + default: + tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8; + break; + } + } else { + tmpbuf[1] |= USB_PORT_STAT_HIGH_SPEED >> 8; + }
if (reg & EHCI_PS_CSC) tmpbuf[2] |= USB_PORT_STAT_C_CONNECTION;