mtd: resync with Linux-3.7.1

This patch is essentially an update of u-boot MTD subsystem to
the state of Linux-3.7.1 with exclusion of some bits:

- the update is concentrated on NAND, no onenand or CFI/NOR/SPI
flashes interfaces are updated EXCEPT for API changes.

- new large NAND chips support is there, though some updates
have got in Linux-3.8.-rc1, (which will follow on top of this patch).

To produce this update I used tag v3.7.1 of linux-stable repository.

The update was made using application of relevant patches,
with changes relevant to U-Boot-only stuff sticked together
to keep bisectability. Then all changes were grouped together
to this patch.

Signed-off-by: Sergey Lapin <slapin@ossfans.org>
[scottwood@freescale.com: some eccstrength and build fixes]
Signed-off-by: Scott Wood <scottwood@freescale.com>
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index e8506dd..90f5985 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -607,12 +607,13 @@
 {
 	nand->chip_delay  = 0;
 #ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
-	nand->options	  |= NAND_USE_FLASH_BBT;
+	nand->bbt_options	  |= NAND_BBT_USE_FLASH;
 #endif
 #ifdef CONFIG_SYS_NAND_HW_ECC
 	nand->ecc.mode = NAND_ECC_HW;
 	nand->ecc.size = 512;
 	nand->ecc.bytes = 3;
+	nand->ecc.strength = 1;
 	nand->ecc.calculate = nand_davinci_calculate_ecc;
 	nand->ecc.correct  = nand_davinci_correct_data;
 	nand->ecc.hwctl  = nand_davinci_enable_hwecc;
@@ -623,6 +624,7 @@
 	nand->ecc.mode = NAND_ECC_HW_OOB_FIRST;
 	nand->ecc.size = 512;
 	nand->ecc.bytes = 10;
+	nand->ecc.strength = 4;
 	nand->ecc.calculate = nand_davinci_4bit_calculate_ecc;
 	nand->ecc.correct = nand_davinci_4bit_correct_data;
 	nand->ecc.hwctl = nand_davinci_4bit_enable_hwecc;