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15 lines
491 B
Diff
15 lines
491 B
Diff
--- a/drivers/usb/host/ehci-q.c
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+++ b/drivers/usb/host/ehci-q.c
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@@ -782,6 +782,11 @@ static void qh_link_async (struct ehci_h
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if (!(cmd & CMD_ASE)) {
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/* in case a clear of CMD_ASE didn't take yet */
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(void) handshake (&ehci->regs->status, STS_ASS, 0, 150);
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+
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+ /* force async head to be valid */
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+ writel ((u32)ehci->async->qh_dma,
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+ &ehci->regs->async_next);
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+
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cmd |= CMD_ASE | CMD_RUN;
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writel (cmd, &ehci->regs->command);
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ehci->hcd.state = USB_STATE_RUNNING;
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