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| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2015-11-24 12:09:55 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-01 19:45:51 +0100 |
| commit | 0cbd4b34cda9dfd36b6c26b692dee181e0100b67 (patch) | |
| tree | 2e90f0a0e59b8289a3497293b81baead68c4c76f /drivers/usb/host/xhci.h | |
| parent | dt-bindings: Add a binding for Mediatek xHCI host controller (diff) | |
| download | linux-0cbd4b34cda9dfd36b6c26b692dee181e0100b67.tar.xz linux-0cbd4b34cda9dfd36b6c26b692dee181e0100b67.zip | |
xhci: mediatek: support MTK xHCI host controller
There some vendor quirks for MTK xhci host controller:
1. It defines some extra SW scheduling parameters for HW
to minimize the scheduling effort for synchronous and
interrupt endpoints. The parameters are put into reseved
DWs of slot context and endpoint context.
2. Its IMODI unit for Interrupter Moderation register is
8 times as much as that defined in xHCI spec.
3. Its TDS in Normal TRB defines a number of packets that
remains to be transferred for a TD after processing all
Max packets in all previous TRBs.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Tested-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 8b4629650328..9be7348872ba 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1630,6 +1630,7 @@ struct xhci_hcd { /* For controllers with a broken beyond repair streams implementation */ #define XHCI_BROKEN_STREAMS (1 << 19) #define XHCI_PME_STUCK_QUIRK (1 << 20) +#define XHCI_MTK_HOST (1 << 21) unsigned int num_active_eps; unsigned int limit_active_eps; /* There are two roothubs to keep track of bus suspend info for */ |