NFM cpu: Import sunxi MMC driver from uboot

Change-Id: I8417875737a5f8e1dc21325ad5d6d245423f68cb
NFM cpu: Add clock reg definitions for SD clock

Change-Id: I88763072c8a541ddba794e79fb55e82eb2f187a9
cubieboard: add basic SD init and testing

Change-Id: I63302b87b583ed62794559238b8b1ae19aba3f81
NFM cpu: use SD card for bootblock media

Change-Id: Ie0b123023c53e485c41650c1fc7b0fb69a286a30
cpu/allwinner/a10: make entire ROM image bootable

Change-Id: Ifb4ac7b1682462ccbf590f41b2357b113da1d2d5
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
CPU: Kconfig, Clarify positioning of keep ROMSTAGE and RAMSTAGE

Change-Id: I4ca9ad097b145445316bcd962e007731b08a7fda
CPU: bootblock_media, cache entire rom to RAM

Change-Id: I6ec78ae2b173d054a80584315bd2698c618f5b89
board: load ramstage in romstage

Change-Id: I828b7e019b6d66cf99ca039844be50f9f50bdb7d
CPU: Add first ramstage bits

Change-Id: I857755976b17b0e492c086162f395a77933eeed8
KILLME fucking hack

Change-Id: I4a20a0d85621cbd4adc73401f064bc610ae5cb53
MMC: move comments to C file

Change-Id: I87c0ef1411b1cca4f26571fed739a1858b1fae10
MMC: factor out SPI CRC enable

Change-Id: Idad30ad41ccf924032666205b717c0f3e4484b4f
MMC: factor out read ID

Change-Id: I5b2bf3c2056f5c5835e383718a2a45234783278c
Refactor lenghty endian conversion

Change-Id: I4d8a6e17ebdfd3130ac68081d3d112e0fa335f3a