mtd: OneNAND: lighten scary initial bad block messages

Initial bad blocks are normal but the messages look like
errors.  Make the messages less scary, make the main
message an informational message not a warning, make the
message displaying registers a debug message and include
the address there instead of in the informational message.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 88f23e3..2d7c90d 100644 (file)
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1484,8 +1484,7 @@ static int onenand_bbt_wait(struct mtd_info *mtd, int state)
 {
        struct onenand_chip *this = mtd->priv;
        unsigned long timeout;
-       unsigned int interrupt;
-       unsigned int ctrl;
+       unsigned int interrupt, ctrl, ecc, addr1, addr8;
 
        /* The 20 msec is enough */
        timeout = jiffies + msecs_to_jiffies(20);
@@ -1497,25 +1496,28 @@ static int onenand_bbt_wait(struct mtd_info *mtd, int state)
        /* To get correct interrupt status in timeout case */
        interrupt = this->read_word(this->base + ONENAND_REG_INTERRUPT);
        ctrl = this->read_word(this->base + ONENAND_REG_CTRL_STATUS);
+       addr1 = this->read_word(this->base + ONENAND_REG_START_ADDRESS1);
+       addr8 = this->read_word(this->base + ONENAND_REG_START_ADDRESS8);
 
        if (interrupt & ONENAND_INT_READ) {
-               int ecc = onenand_read_ecc(this);
+               ecc = onenand_read_ecc(this);
                if (ecc & ONENAND_ECC_2BIT_ALL) {
-                       printk(KERN_WARNING "%s: ecc error = 0x%04x, "
-                               "controller error 0x%04x\n",
-                               __func__, ecc, ctrl);
+                       printk(KERN_DEBUG "%s: ecc 0x%04x ctrl 0x%04x "
+                              "intr 0x%04x addr1 %#x addr8 %#x\n",
+                              __func__, ecc, ctrl, interrupt, addr1, addr8);
                        return ONENAND_BBT_READ_ECC_ERROR;
                }
        } else {
-               printk(KERN_ERR "%s: read timeout! ctrl=0x%04x intr=0x%04x\n",
-                       __func__, ctrl, interrupt);
+               printk(KERN_ERR "%s: read timeout! ctrl 0x%04x "
+                      "intr 0x%04x addr1 %#x addr8 %#x\n",
+                      __func__, ctrl, interrupt, addr1, addr8);
                return ONENAND_BBT_READ_FATAL_ERROR;
        }
 
        /* Initial bad block case: 0x2400 or 0x0400 */
        if (ctrl & ONENAND_CTRL_ERROR) {
-               printk(KERN_DEBUG "%s: controller error = 0x%04x\n",
-                       __func__, ctrl);
+               printk(KERN_DEBUG "%s: ctrl 0x%04x intr 0x%04x addr1 %#x "
+                      "addr8 %#x\n", __func__, ctrl, interrupt, addr1, addr8);
                return ONENAND_BBT_READ_ERROR;
        }
 

diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index 905209b..fc2c16a 100644 (file)
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -101,8 +101,8 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
                        if (ret || check_short_pattern(&buf[j * scanlen],
                                               scanlen, this->writesize, bd)) {
                                bbm->bbt[i >> 3] |= 0x03 << (i & 0x6);
-                               printk(KERN_WARNING "Bad eraseblock %d at 0x%08x\n",
-                                       i >> 1, (unsigned int) from);
+                               printk(KERN_INFO "OneNAND eraseblock %d is an "
+                                       "initial bad block\n", i >> 1);
                                mtd->ecc_stats.badblocks++;
                                break;
                        }