Ivan Grokhotkov 78fab8a0f9 sdmmc: implement partial DDR support
Works for 3.3V eMMC in 4 line mode.
Not implemented:
- DDR mode for SD cards (UHS-I) also need voltage to be switched to 1.8V.
- 8-line DDR mode for eMMC to be implemented later.
2018-08-30 13:11:54 +08:00
..
2018-07-04 14:01:57 +08:00
2018-07-12 19:10:37 +08:00
2018-05-17 10:59:04 +08:00
2018-07-24 10:33:58 +08:00