[PATCH v3 2/9] mailbox: Add NVIDIA Tegra XUSB mailbox driver

2014-09-02 Thread Andrew Bresticker
The Tegra xHCI controller's firmware communicates requests to the host processor through a mailbox interface. While there is only a single physical channel, messages sent by the controller can be divided into two groups: those intended for the PHY driver and those intended for the host-controller

[PATCH v3 2/9] mailbox: Add NVIDIA Tegra XUSB mailbox driver

2014-09-02 Thread Andrew Bresticker
The Tegra xHCI controller's firmware communicates requests to the host processor through a mailbox interface. While there is only a single physical channel, messages sent by the controller can be divided into two groups: those intended for the PHY driver and those intended for the host-controller