| commit | 78c5a180871d4337d4cfd41d6739a04b271b2e4d | [log] [tgz] |
|---|---|---|
| author | Tim Harvey <tharvey@gateworks.com> | Fri Apr 03 16:52:52 2015 -0700 |
| committer | Stefano Babic <sbabic@denx.de> | Wed Apr 22 14:35:35 2015 +0200 |
| tree | 2aaac7ec7a70f9b06587d64996d4e12b699422c4 | |
| parent | 32f9ef3e2ba813ea541f08c551b9188ef4749307 [diff] |
arm: mx6: ddr: add pd_fast_exit flag to system information DDR3 has a special Precharge power-down mode: fast-exit vs slow-exit. In slow-exit mode the DLL is off but in some quiescent state that makes it easy to turn on again in tXPDLL cycles (about 10tCK) vs the full tDLLK (512tCK). In fast-exist mode the DLL is maintained such that it is ready again in about 3tCK. Signed-off-by: Tim Harvey <tharvey@gateworks.com>