[MTD] [NAND] pxa3xx_nand: added warning which tells id of detected NAND

Minor patch to help debugging of NAND detection.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index bc37f551edf5..c0fa9c9edf08 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -924,7 +924,7 @@ static int pxa3xx_nand_detect_flash(struct pxa3xx_nand_info *info,
                                     const struct pxa3xx_nand_platform_data *pdata)
 {
         const struct pxa3xx_nand_flash *f;
-        uint32_t id;
+        uint32_t id = -1;
         int i;
 
         for (i = 0; i<pdata->num_flash; ++i) {
@@ -956,6 +956,9 @@ static int pxa3xx_nand_detect_flash(struct pxa3xx_nand_info *info,
         }
 #endif
 
+        dev_warn(&info->pdev->dev,
+                 "failed to detect configured nand flash; found %04x instead of\n",
+                 id);
         return -ENODEV;
 }