S5P: Exynos: Add GPIO numbering feature

Used a script to recheck/verify pin mapping and existing mapping appears to be fine, returning correct bank and pin values. Did ./MAKEALL -a arm and found all Exynos/S5P related boards compiled successfully.
Couldn't test booting over all of them.
Tested U-Boot bootup over SMDK5420, SMDK5250, Snow. Requesting maintaners to please test over affected SoCs/boards.

Changes in V2:
- Enabled CMD_GPIO as suggested by Simon Glass
and supported same for EXYNOS5.
Changes in V3:
- New patch added to rename S5P GPIO definitions
to S5P_GPIO.
- GPIO Table added to calculate the base address
of input gpio bank.
Changes in V4:
- To have consistent 0..n-1 GPIO numbering the banks are divided into different parts where ever they have holes in them.
- Function and table to support gpio command moved to s5p-gpio driver.
- Rebased on latest u-boot-samsung tree.
Changes in V5:
- Rebased on latest u-boot-samsung tree.
- Removed Exynos5 specific code in gpio driver api to get bank.
- Added #define HAVE_GENERIC_GPIO in config file
to remove conditinal CPU check in gpio driver.
Changes in V6:
- Isolated config changes in a new patch.
- Updated patches with corresponding changes for Exynos 5420.
Changes in V7:
- Added changes for other SoCs like Exynos 4412, 4210 etc.
Changes in V8:
- Changed Subject of patch 2/2 to reflect affected SoCs/boards.
- Fixed arndale board compile time errors introduced due to patch-set v7.
Changes in V9:
- Fixed checkpatch errors.
- Fixed naming error in exynosxxxx_gpio_data arrays which could be the possible reason behind data abort witnessed over Exynos4 boards.
Changes in v10:
- Made arch-exynos/gpio.h -> arch/gpio.h.
- Removed dead code.
- Replaced exynos_gpio_get calls with corresponding pin number.
- Edited pin numbmers in dts files.
Changes in v11:
- Created and fixed pinmux_config for Exynos 4412.
- Removed dead code.
Changes in v12:
- Added change logs in individual patches.
- Fixed few bugs and typos.
- Added "Acked-by: Przemyslaw Marczak".

Akshay Saraswat (2):
S5P: Exynos: Add GPIO pin numbering and rename definitions
S5P: Exynos: Config: Enable GPIO CMD config

  arch/arm/cpu/armv7/exynos/pinmux.c         |  561 +++++----
  arch/arm/dts/exynos4210-origen.dts         |    4 +-
  arch/arm/dts/exynos4210-trats.dts          |    6 +-
  arch/arm/dts/exynos4210-universal_c210.dts |    4 +-
  arch/arm/dts/exynos4412-trats2.dts         |    4 +-
  arch/arm/include/asm/arch-exynos/cpu.h     |   17 +-
  arch/arm/include/asm/arch-exynos/gpio.h    | 1761 +++++++++++++++++++++++-----
  arch/arm/include/asm/arch-s5pc1xx/gpio.h   |  948 ++++++++++++---
  board/samsung/arndale/arndale.c            |   11 +-
  board/samsung/goni/goni.c                  |   32 +-
  board/samsung/smdk5250/exynos5-dt.c        |   20 +-
  board/samsung/smdk5250/smdk5250.c          |   19 +-
  board/samsung/smdk5420/smdk5420.c          |   15 +-
  board/samsung/smdkc100/smdkc100.c          |    5 +-
  board/samsung/smdkv310/smdkv310.c          |   19 +-
  board/samsung/trats/trats.c                |   39 +-
  board/samsung/trats2/trats2.c              |   74 +-
  board/samsung/universal_c210/universal.c   |   51 +-

  drivers/gpio/s5p_gpio.c                    |  204 +++-
  include/configs/exynos5-dt.h               |    2 +
  include/configs/s5p_goni.h                 |    4 +-
  include/configs/s5pc210_universal.h        |   16 +-
  include/configs/smdkv310.h                 |    1 +
  include/configs/trats.h                    |    8 +-
  include/configs/trats2.h                   |    4 +-
  25 files changed, 2918 insertions(+), 911 deletions(-)