[U-Boot] [PATCH 0/4] lpc32xx: devkit3250 board update

[Vladimir Zapolskiy]

This changeset improves support of Timll DevKit3250 board:
* added LPC32xx MAC and SMSC RMII phy support, this dependends on
  - http://patchwork.ozlabs.org/patch/489100/
  - http://patchwork.ozlabs.org/patch/489190/
  - http://patchwork.ozlabs.org/patch/491419/
  - http://patchwork.ozlabs.org/patch/491420/
* added GPIO, SPI, I2C support, works good, many thanks to Albert,
* added LPC32xx SLC NAND driver, testing of 50 MiB data raw reading
  shows 1 MiB/s speed, the same change has been sent to the mailing
  list separately, here it is duplicated as a build dependency:
  - http://patchwork.ozlabs.org/patch/495247/
  - http://patchwork.ozlabs.org/patch/495250/
* added an option to pass DTB to an operating system,
* changed serial console to commonly used as default UART5,
* boot delay is set to 1 for convenience,
* extended predefined environment variables and reserved space on NAND,
* added an option to build SPL image for the board, by default SPL
  downloads U-boot image from NAND (offset 0x40000, size 0x60000).

Albert, from commit logs I noticed that WORK92105 has SLC NAND chip,
but it is managed by MLC controller, if you have any plans to test
LPC32xx SLC NAND driver from the series, please *be aware* of
different OOB layouts, I found it is quite easy to screw up the chip,
if SLC and MLC are interchanged, so that only "nand scrub" helps.
FWIW this SLC NAND driver uses a default OOB layout, the same one
is found in Linux LPC32xx SLC NAND driver.

Vladimir Zapolskiy (4):
  spl: nand: simple: replace readb() with chip specific read_buf()
  nand: lpc32xx: add SLC NAND controller support
  lpc32xx: devkit3250: update of board configuration
  lpc32xx: devkit3250: add spl build support

 arch/arm/Kconfig                              |   1 +
 arch/arm/cpu/arm926ejs/lpc32xx/devices.c      |   6 +
 arch/arm/include/asm/arch-lpc32xx/clk.h       |   2 +
 arch/arm/include/asm/arch-lpc32xx/sys_proto.h |   1 +
 board/timll/devkit3250/Makefile               |   1 +
 board/timll/devkit3250/devkit3250.c           |  31 ++++-
 board/timll/devkit3250/devkit3250_spl.c       |  68 ++++++++++
 configs/devkit3250_defconfig                  |   4 +
 drivers/mtd/nand/Makefile                     |   1 +
 drivers/mtd/nand/lpc32xx_nand_slc.c           | 183 ++++++++++++++++++++++++++
 drivers/mtd/nand/nand_spl_simple.c            |   7 +-
 include/configs/devkit3250.h                  | 145 +++++++++++++++++++-
 12 files changed, 442 insertions(+), 8 deletions(-)
 create mode 100644 board/timll/devkit3250/devkit3250_spl.c
 create mode 100644 drivers/mtd/nand/lpc32xx_nand_slc.c

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2.1.4