* [U-Boot] [PATCH] usb: ehci: do not set the LSB of Current qTD pointer
@ 2014-11-17 8:54 Masahiro Yamada
2014-11-19 22:32 ` Marek Vasut
0 siblings, 1 reply; 2+ messages in thread
From: Masahiro Yamada @ 2014-11-17 8:54 UTC (permalink / raw)
To: u-boot
According to EHCI specification, the LSB of DWORD 3 of Queue Head
(Current qTD Pointer) is not T-bit, but always zero.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
---
drivers/usb/host/ehci-hcd.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index c671c72..54e948a 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -971,7 +971,6 @@ int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
qh_list->qh_link = cpu_to_hc32((uint32_t)qh_list | QH_LINK_TYPE_QH);
qh_list->qh_endpt1 = cpu_to_hc32(QH_ENDPT1_H(1) |
QH_ENDPT1_EPS(USB_SPEED_HIGH));
- qh_list->qh_curtd = cpu_to_hc32(QT_NEXT_TERMINATE);
qh_list->qh_overlay.qt_next = cpu_to_hc32(QT_NEXT_TERMINATE);
qh_list->qh_overlay.qt_altnext = cpu_to_hc32(QT_NEXT_TERMINATE);
qh_list->qh_overlay.qt_token =
--
1.9.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [U-Boot] [PATCH] usb: ehci: do not set the LSB of Current qTD pointer
2014-11-17 8:54 [U-Boot] [PATCH] usb: ehci: do not set the LSB of Current qTD pointer Masahiro Yamada
@ 2014-11-19 22:32 ` Marek Vasut
0 siblings, 0 replies; 2+ messages in thread
From: Marek Vasut @ 2014-11-19 22:32 UTC (permalink / raw)
To: u-boot
On Monday, November 17, 2014 at 09:54:14 AM, Masahiro Yamada wrote:
> According to EHCI specification, the LSB of DWORD 3 of Queue Head
> (Current qTD Pointer) is not T-bit, but always zero.
>
> Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Applied, thanks!
Best regards,
Marek Vasut
^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-11-17 8:54 [U-Boot] [PATCH] usb: ehci: do not set the LSB of Current qTD pointer Masahiro Yamada
2014-11-19 22:32 ` Marek Vasut
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