This series adds support for XHCI on NVIDIA Tegra SoCs. This includes:
- extending the XUSB pad controller driver to support the USB PHY
types (UTMI, HSIC, and USB3),
- adding a driver for the mailbox used to communicate with the XHCI
controller's firmware, and
- adding a XHCI host-controller driver.
Based on Stephen Warren's for-next branch plus Thierry Reding's XUSB
pad controller driver [1].
Tested on Venice2 and Jetson TK1 with a variety of USB2.0 and USB3.0 memory
sticks and ethernet dongles using controller firmware from the ChromiumOS
tree [2].
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@xxxxxxxxxx>
Bharath Yadav <byadav@xxxxxxxxxx>
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.
[1] http://patchwork.ozlabs.org/patch/360458/
[2] http://commondatastorage.googleapis.com/chromeos-localmirror/distfiles/xhci-firmware-2014.05.09.00.00.tbz2
[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 | 25 +
.../pinctrl/nvidia,tegra124-xusb-padctl.txt | 53 +-
.../bindings/usb/nvidia,tegra124-xhci.txt | 76 ++
arch/arm/boot/dts/tegra124-jetson-tk1.dts | 43 +-
arch/arm/boot/dts/tegra124-venice2.dts | 72 +-
arch/arm/boot/dts/tegra124.dtsi | 31 +
drivers/mailbox/Kconfig | 7 +
drivers/mailbox/Makefile | 2 +
drivers/mailbox/tegra-xusb-mbox.c | 308 ++++++
drivers/pinctrl/pinctrl-tegra-xusb.c | 1106 +++++++++++++++++++-
drivers/usb/host/Kconfig | 12 +
drivers/usb/host/Makefile | 2 +
drivers/usb/host/xhci-tegra.c | 900 ++++++++++++++++
include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h | 7 +
include/linux/tegra-xusb-mbox.h | 98 ++
15 files changed, 2673 insertions(+), 69 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-mbox.c
create mode 100644 drivers/usb/host/xhci-tegra.c
create mode 100644 include/linux/tegra-xusb-mbox.h
--
2.0.0.526.g5318336
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