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sd: Add common SD initialization code

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All SD cards require SD CMD0 (reset) and CMD8 (send IF cond) at boot.
Add this portion of the initialization flow to SD subsystem, as well as
query command to check if card is SDIO.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2022-02-16 15:30:40 -06:00 • committed by David Leach
commit 3e8bbee9ed
8 changed files with 527 additions and 0 deletions
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subsys/CMakeLists.txt
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@ -30,3 +30,4 @@ add_subdirectory(canbus)
add_subdirectory_ifdef(CONFIG_TIMING_FUNCTIONS timing)
add_subdirectory_ifdef(CONFIG_DEMAND_PAGING demand_paging)
add_subdirectory(modbus)
add_subdirectory(sd)