From 597eb28bd9691266b7b804364cda577cdb51d106 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Wed, 21 Jan 2009 17:12:01 +0100 Subject: [PATCH] USB: Fix speed detection on EHCI cntr with root hub transaction translators 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 Signed-off-by: Remy Bohmer --- drivers/usb/usb_ehci_core.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/usb/usb_ehci_core.c b/drivers/usb/usb_ehci_core.c index 97367076e2..28962fa026 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; -- 2.39.5