linux-kernel - Re: [PATCH v3 0/5] Mediatek xHCI support

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Message-ID: <1437614315.3040.3.camel@mhfsdcap03>
Date:	Thu, 23 Jul 2015 09:18:35 +0800
From:	chunfeng yun <chunfeng.yun@...iatek.com>
To:	Mathias Nyman <mathias.nyman@...el.com>
CC:	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Felipe Balbi <balbi@...com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	"Roger Quadros" <rogerq@...com>, <linux-usb@...r.kernel.org>,
	<linux-mediatek@...ts.infradead.org>,
	John Crispin <blogic@...nwrt.org>,
	Daniel Kurtz <djkurtz@...omium.org>
Subject: Re: [PATCH v3 0/5] Mediatek xHCI support

Sorry, add a title

On Wed, 2015-07-22 at 22:05 +0800, Chunfeng Yun wrote:
> From ac1e8724bfa47494223bad0af450c1a63cd2fe0c Mon Sep 17 00:00:00 2001
> From: Chunfeng Yun <chunfeng.yun@...iatek.com>
> Date: Wed, 22 Jul 2015 21:15:15 +0800
> Subject: [PATCH 0/5] *** SUBJECT HERE ***
> 
> 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 v3:
> 1. implement generic phy
> 2. move opperations for IPPC and wakeup from phy driver to xHCI driver
> 3. seperate quirk functions into a single C file to fix up dependence issue
> 
> 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-u3.txt      |  21 +
>  .../devicetree/bindings/usb/mt8173-xhci.txt        |  50 ++
>  arch/arm64/boot/dts/mediatek/mt8173-evb.dts        |  15 +
>  arch/arm64/boot/dts/mediatek/mt8173.dtsi           |  31 +
>  drivers/phy/Kconfig                                |   9 +
>  drivers/phy/Makefile                               |   1 +
>  drivers/phy/phy-mt65xx-usb3.c                      | 426 +++++++++++
>  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, 2021 insertions(+), 7 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/phy/phy-mt65xx-u3.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
> 
> In-Reply-To: 
> 


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