Freescale eLBC FCM NAND driver

[oweals/u-boot.git] / drivers / mtd / nand / nand_base.c

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 4b1c564f7509d4c83e6f520180e0b7f25631930c..7bceea8ac3d893cab623e2aaa80d4e3fee74698b 100644 (file)
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -489,7 +489,16 @@ EXPORT_SYMBOL_GPL(nand_wait_ready);
 void nand_wait_ready(struct mtd_info *mtd)
 {
        struct nand_chip *chip = mtd->priv;
-       nand_wait(mtd, chip);
+       u32 timeo = (CFG_HZ * 20) / 1000;
+
+       reset_timer();
+
+       /* wait until command is processed or timeout occures */
+       while (get_timer(0) < timeo) {
+               if (chip->dev_ready)
+                       if (chip->dev_ready(mtd))
+                               break;
+       }
 }
 #endif
 
@@ -2457,9 +2466,9 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
        if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
                chip->cmdfunc = nand_command_lp;
 
-       printk(KERN_INFO "NAND device: Manufacturer ID:"
-              " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, dev_id,
-              nand_manuf_ids[maf_idx].name, type->name);
+       MTDDEBUG (MTD_DEBUG_LEVEL0, "NAND device: Manufacturer ID:"
+                 " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, dev_id,
+                 nand_manuf_ids[maf_idx].name, type->name);
 
        return type;
 }
@@ -2586,8 +2595,12 @@ int nand_scan_tail(struct mtd_info *mtd)
                        chip->ecc.write_oob = nand_write_oob_std;
 
        case NAND_ECC_HW_SYNDROME:
-               if (!chip->ecc.calculate || !chip->ecc.correct ||
-                   !chip->ecc.hwctl) {
+               if ((!chip->ecc.calculate || !chip->ecc.correct ||
+                    !chip->ecc.hwctl) &&
+                   (!chip->ecc.read_page ||
+                    chip->ecc.read_page == nand_read_page_hwecc ||
+                    !chip->ecc.write_page ||
+                    chip->ecc.write_page == nand_write_page_hwecc)) {
                        printk(KERN_WARNING "No ECC functions supplied, "
                               "Hardware ECC not possible\n");
                        BUG();