mtd: nand: atmel: Fix EDO mode check

EDO mode should be used when tRC is less than 30ns, but timings are
expressed in picoseconds in the nand_sdr_timings struct.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Fixes: f9ce2edd ("mtd: nand: atmel: Add ->setup_data_interface() hooks")
Reported-by: NAlexander Dahl <ada@thorsis.com>
Tested-by: NAlexander Dahl <ada@thorsis.com>
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>

drivers/mtd/nand/atmel/nand-controller.c

@@ -1201,7 +1201,7 @@ static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand,
 	 * tRC < 30ns implies EDO mode. This controller does not support this
 	 * mode.
 	 */
-	if (conf->timings.sdr.tRC_min < 30)
+	if (conf->timings.sdr.tRC_min < 30000)
 		return -ENOTSUPP;
 
 	atmel_smc_cs_conf_init(smcconf);