commit 253d5bdd64504a1a569b4eb330555e2449fa3d3f
author Yangbo Lu <yangbo.lu@freescale.com> Wed Apr 15 10:13:12 2015 +0800
committer Pantelis Antoniou <pantelis.antoniou@konsulko.com> Tue May 05 12:29:42 2015 +0300
tree b965a40aaf353d43119ea053c31bd472c2a8202d
parent 5e1c23cd392f17be9d135e504d48925a1cd92aa2

mmc: fsl_esdhc: update eMMC44 adapter card erase timeout

Freescale eMMC44 adapter card uses Micron N2M400FDB311A3CF eMMC
memory. According to the silicon datasheet, secure erase timeout
is 600ms. So increase erase timeout value from 250ms to 600ms.

Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Cc: York Sun <yorksun@freescale.com>

drivers/mmc/fsl_esdhc.c

diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 2bbacb3..b9bc165 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -387,9 +387,9 @@
 
 	/* Workaround for ESDHC errata ENGcm03648 */
 	if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {
-		int timeout = 2500;
+		int timeout = 6000;
 
-		/* Poll on DATA0 line for cmd with busy signal for 250 ms */
+		/* Poll on DATA0 line for cmd with busy signal for 600 ms */
 		while (timeout > 0 && !(esdhc_read32(&regs->prsstat) &
 					PRSSTAT_DAT0)) {
 			udelay(100);