From 597eb28bd9691266b7b804364cda577cdb51d106 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
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 <sr@denx.de>
Signed-off-by: Remy Bohmer <linux@bohmer.net>
---
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