>From 8babf12102cda26752771c1aebd0aff38514847f Mon Sep 17 00:00:00 2001 From: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> Date: Fri, 31 Jul 2015 20:44:17 +0800 Subject: [PATCH v4 0/5] Mediatek xHCI support The patch supports MediaTek's xHCI controller. There are some differences from xHCI spec: 1. The interval is specified in 250 * 8ns increments for Interrupt Moderation Interval(IMODI) of the Interrupter Moderation(IMOD) register, it is 8 times as much as that defined in xHCI spec. 2. For the value of TD Size in Normal TRB, MTK's xHCI controller defines a number of packets that remain to be transferred for a TD after processing all Max packets in all previous TRBs,that means don't include the current TRB's, but in xHCI spec it includes the current ones. 3. To minimize the scheduling effort for synchronous endpoints in xHC, the MTK architecture defines some extra SW scheduling parameters for HW. According to these parameters provided by SW, the xHC can easily decide whether a synchronous endpoint should be scheduled in a specific uFrame. The extra SW scheduling parameters are put into reserved DWs in Slot and Endpoint Context. And a bandwidth scheduler algorithm is added to support such feature. A usb3.0 phy driver is also added which used by mt65xx SoCs platform, it supports two usb2.0 ports and one usb3.0 port. Change in v4: 1. descripte more exactly for each specifiers in binding file 2. use BIT() to define a bit mask mcro Chunfeng Yun (5): dt-bindings: Add usb3.0 phy binding for MT65xx SoCs dt-bindings: Add a binding for Mediatek xHCI host controller usb: phy: add usb3.0 phy driver for mt65xx SoCs xhci: mediatek: support MTK xHCI host controller arm64: dts: mediatek: add xHCI & usb phy for mt8173 .../devicetree/bindings/phy/phy-mt65xx-usb.txt | 21 + .../devicetree/bindings/usb/mt8173-xhci.txt | 51 ++ arch/arm64/boot/dts/mediatek/mt8173-evb.dts | 17 + arch/arm64/boot/dts/mediatek/mt8173.dtsi | 29 + drivers/phy/Kconfig | 9 + drivers/phy/Makefile | 1 + drivers/phy/phy-mt65xx-usb3.c | 419 +++++++++++ drivers/usb/host/Kconfig | 9 + drivers/usb/host/Makefile | 4 + drivers/usb/host/xhci-mtk-sch.c | 436 +++++++++++ drivers/usb/host/xhci-mtk.c | 836 +++++++++++++++++++++ drivers/usb/host/xhci-mtk.h | 135 ++++ drivers/usb/host/xhci-ring.c | 35 +- drivers/usb/host/xhci.c | 19 +- drivers/usb/host/xhci.h | 1 + 15 files changed, 2015 insertions(+), 7 deletions(-) create mode 100644 Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt create mode 100644 Documentation/devicetree/bindings/usb/mt8173-xhci.txt create mode 100644 drivers/phy/phy-mt65xx-usb3.c create mode 100644 drivers/usb/host/xhci-mtk-sch.c create mode 100644 drivers/usb/host/xhci-mtk.c create mode 100644 drivers/usb/host/xhci-mtk.h -- 1.8.1.1.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
