[U-Boot] [PATCH V4 0/4] mtd/NAND: Support for FSMC controller

[Amit Virdi]

This patchset adds support for ST's FSMC controller. In the current u-boot, a
SPEAr specific driver exists for FSMC controller.  This patchset adds a full
fledged driver that can be used across multiple platforms and removes the
obsolete SPEAr specific driver.

V3->V4
 - Removed local_irq_save and local_irq_restore calls from change_bit wrapper
 - Report the total bit flips, including that of ECC, to the upper layers
 - Replace change_bit calls for err_idx's 0th and 1st bit with "^= 3" operation

V2 -> V3
 - Implemented timeout during hardware ecc read
 - Used __attribute__ ((aligned(2))) instead of using array of U16
 - Removed unnecessary enum

V1 -> V2
 - Defined CONFIG_SYS_NAND_SELF_INIT and did the related changes
 - Modified the error index calculation process
 - Modified newly erased page read algorithm
 - Initialized the badblockbits index to 7
 - Improved fsmc_bch8_correct_data() implementation

Vipin KUMAR (4):
  ARM: Define change_bit routine
  mtd/NAND: Add FSMC driver support
  SPEAr: Configure FSMC driver for NAND interface
  mtd/NAND: Remove obsolete SPEAr specific NAND drivers

 arch/arm/include/asm/arch-spear/hardware.h |    8 +-
 arch/arm/include/asm/arch-spear/spr_nand.h |   57 ----
 arch/arm/include/asm/bitops.h              |    7 +-
 board/spear/spear300/spear300.c            |   14 +-
 board/spear/spear310/spear310.c            |   14 +-
 board/spear/spear320/spear320.c            |   13 +-
 board/spear/spear600/spear600.c            |   14 +-
 drivers/mtd/nand/Makefile                  |    1 +
 drivers/mtd/nand/fsmc_nand.c               |  486 ++++++++++++++++++++++++++++
 drivers/mtd/nand/spr_nand.c                |  124 -------
 include/configs/spear-common.h             |    3 +-
 include/configs/spear3xx.h                 |    4 +
 include/configs/spear6xx.h                 |    3 +
 include/linux/mtd/fsmc_nand.h              |  101 ++++++
 14 files changed, 642 insertions(+), 207 deletions(-)
 delete mode 100644 arch/arm/include/asm/arch-spear/spr_nand.h
 create mode 100644 drivers/mtd/nand/fsmc_nand.c
 delete mode 100644 drivers/mtd/nand/spr_nand.c
 create mode 100644 include/linux/mtd/fsmc_nand.h

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1.7.2.2