tree 2bca1f0e9ff351fb778504d98849d413d1914153
parent 33a3e60d8c15aa5cdd629ce2c692aadf9d3a88bf
author John Grossman <johngro@google.com> 1319680111 -0700
committer Mike J. Chen <mjchen@google.com> 1330824558 -0800

MMC: Make sure PBIAS config matches VMMC supply.

Depending on the system, VMMC may end up being 3 or 1.8v.  It is
important that the PBIAS cell be configured to match the supply.
Fortunately, the PBIAS cell contains a handy detector which can
determine what the supply is set to after PWRDNZ has been released.
Use this detector to make sure that the cell is properly configured
and does not damage itself.

Change-Id: I96d8aff3d19f5ea783ae7eb646a7e3fa920a64be
Signed-off-by: John Grossman <johngro@google.com>