NAND: show manufacturer and device ID for unknown chips

When the NAND part is not supported, it is useful to show the manufacturer
and device ID to help debugging and reporting.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 7171bdd51b421441f401df6b70cb1b56bfdea3f1..ed1c9c9a88aa906b70dbd83698f7406e010dd774 100644 (file)
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2652,8 +2652,12 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                }
        }
 
                }
        }
 

-       if (!type)
+       if (!type) {
+               printk(KERN_INFO "%s: unknown NAND device: Manufacturer ID:"
+                      " 0x%02x, Chip ID: 0x%02x\n", __func__,
+                      *maf_id, dev_id);

                return ERR_PTR(-ENODEV);
                return ERR_PTR(-ENODEV);

+       }

 
        if (!mtd->name)
                mtd->name = type->name;
 
        if (!mtd->name)
                mtd->name = type->name;