[PATCH 1/2] sdhci-of-arasan: Add quirk and device tree parameter to fake CD bit

Sören Brinkmann
2016-08-25T15:10:47Z

On Wed, 2016-08-24 at 18:23:03 -0500, Zach Brown wrote:
> The sdhci controller on xilinx zynq devices will not function unless
> the cd bit is provided. http://www.xilinx.com/support/answers/61064.html
> In cases where it is impossible to provide the cd bit in hardware,
> setting the controller to test mode and then setting inserted to true
> will get the controller to function with out the cd bit.
>
> The device property "fake-cd" will let the arasan driver know it needs
> to fake the cd bit for the controller inorder for the controller to
> function with a SD card that does not provide the CD bit.

I thought the CD is, if not pinned out, tied off to some valid logic
level. Isn't it enough to specify cd-inverted if needed to make it work
in those cases?

S?ren