mmc: poll eMMC status after EXT_CSD command
EXT_CSD command needs to access data from eMMC device. Add the
operation of polling eMMC device status. Make sure the command is
finished.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 418ab11..02bf770 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -246,6 +246,13 @@
return ret;
}
+ do {
+ ret = mmc_device_state();
+ if (ret < 0) {
+ return ret;
+ }
+ } while (ret != MMC_STATE_TRAN);
+
nb_blocks = (mmc_ext_csd[CMD_EXTCSD_SEC_CNT] << 0) |
(mmc_ext_csd[CMD_EXTCSD_SEC_CNT + 1] << 8) |
(mmc_ext_csd[CMD_EXTCSD_SEC_CNT + 2] << 16) |