Index: firmware/target/arm/as3525/sd-as3525.c
===================================================================
--- firmware/target/arm/as3525/sd-as3525.c	(revision 29736)
+++ firmware/target/arm/as3525/sd-as3525.c	(working copy)
@@ -349,7 +349,7 @@
         /* CMD6 */
         if(!send_cmd(drive, SD_SWITCH_FUNC, 0x80fffff1, MCI_NO_RESP, NULL))
             return -7;
-        mci_delay();
+        sleep(HZ/10);
 
         /*  go back to STBY state so we can read csd */
         /*  CMD7 w/rca=0:  Deselect card to put it in STBY state */