[MTD] [NAND] Add support for 4KiB pages.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

2 files changed, 20 insertions, 2 deletions

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 0793ca39cc88..facee262b4ba 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -82,6 +82,20 @@ static struct nand_ecclayout nand_oob_64 = {
                  .length = 38}}
 };
 
+static struct nand_ecclayout nand_oob_128 = {
+        .eccbytes = 48,
+        .eccpos = {
+                   80, 81, 82, 83, 84, 85, 86, 87,
+                   88, 89, 90, 91, 92, 93, 94, 95,
+                   96, 97, 98, 99, 100, 101, 102, 103,
+                   104, 105, 106, 107, 108, 109, 110, 111,
+                   112, 113, 114, 115, 116, 117, 118, 119,
+                   120, 121, 122, 123, 124, 125, 126, 127},
+        .oobfree = {
+                {.offset = 2,
+                 .length = 78}}
+};
+
 static int nand_get_device(struct nand_chip *chip, struct mtd_info *mtd,
                            int new_state);
 
@@ -2638,6 +2652,9 @@ int nand_scan_tail(struct mtd_info *mtd)
                 case 64:
                         chip->ecc.layout = &nand_oob_64;
                         break;
+                case 128:
+                        chip->ecc.layout = &nand_oob_128;
+                        break;
                 default:
                         printk(KERN_WARNING "No oob scheme defined for "
                                "oobsize %d\n", mtd->oobsize);
@@ -2767,6 +2784,7 @@ int nand_scan_tail(struct mtd_info *mtd)
                         break;
                 case 4:
                 case 8:
+                case 16:
                         mtd->subpage_sft = 2;
                         break;
                 }
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index db5b63da2a7e..7efb9be34662 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -43,8 +43,8 @@ extern void nand_wait_ready(struct mtd_info *mtd);
  * is supported now. If you add a chip with bigger oobsize/page
  * adjust this accordingly.
  */
-#define NAND_MAX_OOBSIZE        64
-#define NAND_MAX_PAGESIZE       2048
+#define NAND_MAX_OOBSIZE        128
+#define NAND_MAX_PAGESIZE       4096
 
 /*
  * Constants for hardware specific CLE/ALE/NCE function