From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Date: Tue, 2 Feb 2016 05:10:16 +0000 (+0530)
Subject: mmc: mmc_write: Write only single block at a time
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=69ea56c61f09a058cd413f87b2a0a41ca4d6f474;p=thirdparty%2Fu-boot.git

mmc: mmc_write: Write only single block at a time

Write only single block at a time while doing write
operations mmc/SD/eMMC
This is workaround for an issue with multiple block write

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

diff --git a/drivers/mmc/mmc_write.c b/drivers/mmc/mmc_write.c
index 221bf306cc5..18cb94f1b03 100644
--- a/drivers/mmc/mmc_write.c
+++ b/drivers/mmc/mmc_write.c
@@ -179,6 +179,12 @@ ulong mmc_bwrite(int dev_num, lbaint_t start, lbaint_t blkcnt, const void *src)
 	do {
 		cur = (blocks_todo > mmc->cfg->b_max) ?
 			mmc->cfg->b_max : blocks_todo;
+		/*
+		 * FIXME: Workaround to always use
+		 * single block write instead of
+		 * multiple block.
+		 */
+		cur = 1;
 		if (mmc_write_blocks(mmc, start, cur, src) != cur)
 			return 0;
 		blocks_todo -= cur;