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usb: xhci: add quirks flag to support MediaTek xHCI 0.96

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There some vendor quirks for MTK xHCI 0.96 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 reserved
   DWs of slot context and endpoint context.
2. 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: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Chunfeng Yun
2020-09-08 18:59:57 +02:00
committed by Marek Vasut
parent e3ea481bee
commit 740820519c
4 changed files with 11 additions and 3 deletions
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2
include/usb/xhci.h
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@@ -1230,6 +1230,8 @@ struct xhci_ctrl {
struct xhci_virt_device *devs[MAX_HC_SLOTS];
int rootdev;
u16 hci_version;
u32 quirks;
#define XHCI_MTK_HOST BIT(0)
};
unsigned long trb_addr(struct xhci_segment *seg, union xhci_trb *trb);