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Message-ID: <CAAObsKAYqpJMJnxSMxhkkRtnoEwLwgUa1y7ij5ZHvHf1jRok+Q@mail.gmail.com> Date: Mon, 8 Sep 2014 17:34:37 +0200 From: Tomeu Vizoso <tomeu@...euvizoso.net> To: Andrew Bresticker <abrestic@...omium.org> Cc: Stephen Warren <swarren@...dotorg.org>, Thierry Reding <thierry.reding@...il.com>, "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, Russell King <linux@....linux.org.uk>, Jassi Brar <jassisinghbrar@...il.com>, Linus Walleij <linus.walleij@...aro.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Mathias Nyman <mathias.nyman@...el.com>, Grant Likely <grant.likely@...aro.org>, Alan Stern <stern@...land.harvard.edu>, Arnd Bergmann <arnd@...db.de>, Kishon Vijay Abraham I <kishon@...com>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org> Subject: Re: [PATCH v3 0/9] Tegra xHCI support On 2 September 2014 23:34, Andrew Bresticker <abrestic@...omium.org> wrote: > > Tested on Venice2, Jetson TK1, and Big with a variety of USB2.0 and > USB3.0 memory sticks and ethernet dongles using controller firmware > recently posted by Andrew Chew [2]. I have had mixed results when testing this on a Jetson TK1 board. Of 8 USB devices I tested with, about half where probed correctly, but the other half repeatedly fail in hub_port_init because in the GET_STATUS right after the reset, the C_PORT_CONNECTION bit is set. I don't see any correlation between the failure and the kind of usb device, but I don't have much experience with USB implementations either. Regards, Tomeu > Notes: > - HSIC support is mostly untested and I think there are still some issues > to work out there. I do have a Tegra124 board with a HSIC hub so I'll > try to sort those out later. > - The XUSB padctl driver doesn't play nice with the existing Tegra USB2.0 > PHY driver, so all ports should be assigned to the XHCI controller. > > Based on work by: > a lot of people, but from what I can tell from the L4T tree [3], the > original authors of the Tegra xHCI driver are: > Ajay Gupta <ajayg@...dia.com> > Bharath Yadav <byadav@...dia.com> > > Chagnes from v2: > - Dropped mailbox channel specifier. The mailbox driver allocates virtual > channels backed by the single physical channel. > - Added support for HS_CURR_LEVEL adjustment pinconfig property, which > will be required for the Blaze board. > - Addressed Stephen's review comments. > > Changes from v1: > - Converted mailbox driver to use the common mailbox framework. > - Fixed up host driver so that it can now be built and used as a module. > - Addressed Stephen's review comments. > - Misc. cleanups. > > Changes from RFC: > - Dropped Tegra114 support. > - Split out mailbox into separate driver. > - Stopped using child xhci-plat device in xHCI host-controller driver. > - Added PHY support to Thierry's XUSB padctl driver instead of in a separate > USB PHY driver. > - Added Jetson TK1 support. > - Misc. cleanups. > > [0] https://lkml.org/lkml/2014/8/1/200 > [1] https://lkml.org/lkml/2014/8/18/504 > [2] https://patchwork.ozlabs.org/patch/384013/ > [3] git://nv-tegra.nvidia.com/linux-3.10.git > > Andrew Bresticker (9): > of: Add NVIDIA Tegra XUSB mailbox binding > mailbox: Add NVIDIA Tegra XUSB mailbox driver > of: Update Tegra XUSB pad controller binding for USB > pinctrl: tegra-xusb: Add USB PHY support > of: Add NVIDIA Tegra xHCI controller binding > usb: xhci: Add NVIDIA Tegra xHCI host-controller driver > ARM: tegra: Add Tegra124 XUSB mailbox and xHCI controller > ARM: tegra: jetson-tk1: Add xHCI support > ARM: tegra: venice2: Add xHCI support > > .../bindings/mailbox/nvidia,tegra124-xusb-mbox.txt | 32 + > .../pinctrl/nvidia,tegra124-xusb-padctl.txt | 56 +- > .../bindings/usb/nvidia,tegra124-xhci.txt | 104 ++ > arch/arm/boot/dts/tegra124-jetson-tk1.dts | 48 +- > arch/arm/boot/dts/tegra124-venice2.dts | 79 +- > arch/arm/boot/dts/tegra124.dtsi | 41 + > drivers/mailbox/Kconfig | 3 + > drivers/mailbox/Makefile | 2 + > drivers/mailbox/tegra-xusb-mailbox.c | 290 +++++ > drivers/pinctrl/Kconfig | 1 + > drivers/pinctrl/pinctrl-tegra-xusb.c | 1233 +++++++++++++++++++- > drivers/usb/host/Kconfig | 9 + > drivers/usb/host/Makefile | 1 + > drivers/usb/host/xhci-tegra.c | 905 ++++++++++++++ > include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h | 20 + > include/soc/tegra/xusb.h | 53 + > 16 files changed, 2796 insertions(+), 81 deletions(-) > create mode 100644 Documentation/devicetree/bindings/mailbox/nvidia,tegra124-xusb-mbox.txt > create mode 100644 Documentation/devicetree/bindings/usb/nvidia,tegra124-xhci.txt > create mode 100644 drivers/mailbox/tegra-xusb-mailbox.c > create mode 100644 drivers/usb/host/xhci-tegra.c > create mode 100644 include/soc/tegra/xusb.h > > -- > 2.1.0.rc2.206.gedb03e5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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