[PATCH v2 0/9] Tegra xHCI support

On Thu, Aug 21, 2014 at 6:34 AM, Tomeu Vizoso [off-list ref] wrote:

On 18 August 2014 19:08, Andrew Bresticker [off-list ref] wrote:

quoted

Tested on Venice2, Jetson TK1, and Big with a variety of USB2.0 and
USB3.0 memory sticks and ethernet dongles using controller firmware from
the ChromiumOS tree [2].

Hi Andrew,

do you have any information regarding the port assignments for the
Blaze board? Would like to test this there.

Sure:
- USB3 port 0 (using PCIe lane 0) and UTMI port 0 are connected to the
USB A connector on the left side,
- UTMI port 1 is connected to an internal hub, which is in turn
connected to the camera, the LTE modem (if present), and one of the
USB A connectors on the right side, and
- UTMI port 2 is connected to the other USB A connector on the right side.
The mapping of ports on the right side varies by SKU (i.e. the one on
the internal hub may be the front or rear USB A port).

The USB3 device tree bits for Venice2 should work just fine for Blaze;
the only real difference is that USB3 port 1/PCIe lane 1 are unused.

Also, because of the board design on Blaze, the fused HS_CURR_LEVEL
values need to be adjusted before being programmed into
USB2_OTG_PAD*_CTL0.  This only affects UTMI ports 0 and 2, so ports
connected to the internal hub should still work.  I'll add a pinconfig
property to address this in the likely event I need to re-spin this
series.  Or, if you like, I can send a follow-on patch to this set to
add the property.