mtd/nand: fsmc driver updates

This patch-set contains several fixes and a few enhancements in fsmc driver. Modifications include
- General enhancements
* Add ready/busy support through a GPIO pin
* Add software bch support
* Increase ecc loactions to 640
* Support multiple banks
* Use relaxed io accessors for increased throughput
- Enhance DT support
* Add timing parameters
- Several fixes
* Fix the type for regs
* Replace change_bit routine to handle unaligned addresses
* Provide contiguous buffers for DMA operation

Vipin Kumar (11):
fsmc/nand:FIX: Change the type for regs to void __iomem * fsmc/nand: Rearrange the fsmc_nand_data structure and update comments fsmc/nand: Support multiple banks connected to controller fsmc/nand: Accept nand timing parameters via DT
fsmc: Implement ready/busy through gpio pin
fsmc/nand: Modify the wait to uninterruptible
fsmc/nand: Provide contiguous buffers to dma
fsmc/nand: Use relaxed variants of io accessors fsmc/nand:FIX: replace change_bit routine
fsmc/nand: Add sw bch support for ecc calculation/correction
nand: Increase the ecc placement locations to 640

 .../devicetree/bindings/mtd/fsmc-nand.txt          |  29 ++
 arch/arm/boot/dts/spear300.dtsi                    |   1 +
 arch/arm/boot/dts/spear310.dtsi                    |   1 +
 arch/arm/boot/dts/spear320.dtsi                    |   1 +
 arch/arm/boot/dts/spear600.dtsi                    |   1 +
 arch/arm/mach-u300/core.c                          |   1 +
 drivers/mtd/nand/fsmc_nand.c                       | 419 ++++++++++++++-------
 include/linux/mtd/fsmc.h                           |  18 +-
 include/linux/mtd/mtd.h                            |   2 +-
 9 files changed, 332 insertions(+), 141 deletions(-)

1.7.11.4