diff options
Diffstat (limited to 'drivers/mtd/nand/mxc_nd2.c')
| -rw-r--r-- | drivers/mtd/nand/mxc_nd2.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/mtd/nand/mxc_nd2.c b/drivers/mtd/nand/mxc_nd2.c index 6750bff8b0ca..8c76d6f51e72 100644 --- a/drivers/mtd/nand/mxc_nd2.c +++ b/drivers/mtd/nand/mxc_nd2.c @@ -370,7 +370,9 @@ static void send_cmd(struct mtd_info *mtd, u16 cmd, bool useirq) break; case NAND_CMD_RESET: auto_cmd_interleave(mtd, cmd); + break; case NAND_CMD_STATUS: + send_atomic_cmd(cmd, useirq); break; default: break; @@ -483,13 +485,17 @@ static inline void read_dev_status(u16 *status) /* clear status */ ACK_OPS; - do { - /* send auto read status command */ - raw_write(NFC_AUTO_STATE, REG_NFC_OPS); - if (cpu_is_mx51_rev(CHIP_REV_2_0) == 1) - wait_op_done(TROP_US_DELAY, false); - *status = (raw_read(NFC_CONFIG1) & mask) >> 16; - } while ((*status & NAND_STATUS_READY) == 0); + + /* use atomic mode to read status instead + of using auto mode,auto-mode has issues + and the status is not correct. + */ + raw_write(NFC_STATUS, REG_NFC_OPS); + + wait_op_done(TROP_US_DELAY, false); + + *status = (raw_read(NFC_CONFIG1) & mask) >> 16; + } #endif |