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authorJerry Huang <Chang-Ming.Huang@freescale.com>2012-05-17 23:00:51 +0000
committerAndy Fleming <afleming@freescale.com>2012-07-13 17:04:50 -0500
commitd2d8afae338664958b0ab68741419c0f8be26e80 (patch)
tree4e2c5ccc27e74a9fe982660c7557b46dbe7aa050 /drivers
parent40242bc394030871e6de13883fe1ace5c0b8e15b (diff)
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SD/MMC: check the card status during erase operation
Use the function 'mmc_send_status' to check the card status. only when the card is ready, driver can send the next erase command to the card, otherwise, the erase will failed: => mmc erase 0 1 MMC erase: dev # 0, block # 0, count 1 ... 1 blocks erase: OK => mmc erase 0 2 MMC erase: dev # 0, block # 0, count 2 ... mmc erase failed 1 blocks erase: ERROR => mmc erase 0 4 MMC erase: dev # 0, block # 0, count 4 ... mmc erase failed 1 blocks erase: ERROR Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> CC: Andy Fleming <afleming@gmail.com> CC: Marek Vasut <marex@denx.de> Signed-off-by: Andy Fleming <afleming@freescale.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/mmc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 98e5af3..c1c2862 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -333,6 +333,7 @@ mmc_berase(int dev_num, unsigned long start, lbaint_t blkcnt)
int err = 0;
struct mmc *mmc = find_mmc_device(dev_num);
lbaint_t blk = 0, blk_r = 0;
+ int timeout = 1000;
if (!mmc)
return -1;
@@ -352,6 +353,10 @@ mmc_berase(int dev_num, unsigned long start, lbaint_t blkcnt)
break;
blk += blk_r;
+
+ /* Waiting for the ready status */
+ if (mmc_send_status(mmc, timeout))
+ return 0;
}
return blk;