The previous configuration used the wrong "clk" pin.  Without this
change mv_sdio worked because the bootloader would set the pin up, but
with a bootloader that does not set the pin, mv_sdio fails to detect any
card.
I have tested this change using a mwifiex_sdio wireless network adapter
over the SDIO interface.
Signed-off-by: Ryan Press <ryan@presslab.us>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
                };
 
                mvsdio@d00d4000 {
-                       pinctrl-0 = <&sdio_pins2>;
+                       pinctrl-0 = <&sdio_pins3>;
                        pinctrl-names = "default";
                        status = "okay";
                        /*
 
                                             "mpp50", "mpp51", "mpp52";
                              marvell,function = "sd0";
                        };
+
+                       sdio_pins3: sdio-pins3 {
+                             marvell,pins = "mpp48", "mpp49", "mpp50",
+                                            "mpp51", "mpp52", "mpp53";
+                             marvell,function = "sd0";
+                       };
                };
 
                gpio0: gpio@d0018100 {