On Thu, Jan 9, 2014 at 6:35 AM, Zhangfei Gao [off-list ref] wrote:

Suggested by Jaehoon: Use slot-gpio to handle cd-gpio
Add function dw_mci_of_get_cd_gpio to check "cd-gpios" from dts.
mmc_gpio_request_cd and mmc_gpio_get_cd are used to handle cd pin

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>

The Samsung Arndale board started failing boot from MMC root tests
starting with next-20140113 and I bisected it down to this patch.
Reverting this patch on top of next-20140114 gets Arndale booting
again from MMC.  Is there some supporting DT data that's missing for
Arndale?

Kevin