tree e4d119150fd7e2dcdc327abb43339bd8d8ec6d24
parent ae17f866ad0718a03be865438d4e19bce69226e1
author Mayank Rana <mrana@codeaurora.org> 1384153800 +0530
committer Mayank Rana <mrana@codeaurora.org> 1384418926 +0530

USB: msm_otg: Add support for AHB2AHB Bypass Mode in device mode

With AHB2AHB Bypass Mode, USB 2.0 Core is running using PNOC clock
and runs synchronous to PNOC which provides better throughput.
AHB2AHB Bypass mode can be enable with USB controller using
USB_AHBMODE register. It has below requirement :
- It should be enable before setting kicking USB controller
(i.e. setting R/S bit).
- PNOC should be running at MAX speed to get better throughput.
- While doing asynchronous clock reset with USB core, it is required
to disable this functionality as PNOC clock can't be disable and
re-enable as it is performed with other USB core clock.

CRs-Fixed: 550553
Change-Id: I9feac91b8885a393a13a039e9c89d63d0af2aed6
Signed-off-by: Mayank Rana <mrana@codeaurora.org>