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 <[email protected]>

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 418ab1127aca8561c64ed528742796e8ca9b60c2..02bf770e559e40c01b869217904317c7b14e2129 100644 (file)
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -246,6 +246,13 @@ static int mmc_fill_device_info(void)
                        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) |