diff options
| author | David Brownell <dbrownell@users.sourceforge.net> | 2009-02-17 14:49:01 -0800 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2009-02-18 22:09:56 +0100 |
| commit | eb25082657be3e7639e349fc926afdcbb0a4dc65 (patch) | |
| tree | d311c5c0d95c9837e2a7b8b54bf0aa256df5bd7f /lib | |
| parent | 249d0fa9d59b6165ecc224720d9ce9b7267cf1b8 (diff) | |
omap_hsmmc: only MMC1 allows HCTL.SDVS != 1.8V
Based on a patch from Tony Lindgren ... after initialization,
never change HCTL.SDVS except for MMC1. The other controller
instances only support 1.8V in that field, although they can
suport other card/SDIO/eMMC/... voltages with level shifting
solutions such as external transceivers.
MMC2 behavior sanity tested on Overo/WLAN, OMAP3430 SDP, and
custom hardware. MMC1 also sanity tested on those platforms
plus Beagle. This also fixes a bug preventing MMC2 (and also
presumably MMC3) from powering down when requested.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions