SD card driver in ODROID-X2 (exynos4412)

[Humberto López León]

Hi community,

my team and I are working on the implementation of a driver for SD cards 
in the ODROID-X2 (exynos4412). This driver we want to incorporate into 
the framework GenodeOS, but we have some doubts in implementation. Below 
I list a few:
1- We are implementing the controller DWMMC. This is the right 
controller to handle the SD card in the exynos4412? The SDHCI controller 
is most appropriate?
2- What exynos4412 SoC base address should be used for handling the SD 
card?
3- What is the IRQ associated with handling SD tajetas with DWMMC 
controller?
4- To use the DWMMC controller you need to configure GPIO ports?
5- What clocks should be initialized to handle SD cards?

Anybody know any document that describes the initialization process of 
an SD card? We have been reviewing the implementation of the driver for 
the SD card in the U-Boot and Linux kernel, but have not resolved the 
questions above.

Thank you for your help !!
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