samsung: Use common config files with Samsung boards

This series tries to unify the Samsung board configs into a few header files for exynos5 and exynos4.

The purpose is to make it easier to move to driver model. In that case I would like things like the GPIO drivers and serial drivers to work in a standard way, and not need to support device tree and platform data at the same time. That would be quite painful.

Another reason is that the Chrome OS EC drivers are currently included in boards that don't have a Chrome OS EC. This concern was raised by the Samsung maintainer (Minkyu) a while back.

There are still a few boards that don't use CONFIG_OF_CONTROL so I have updated these rudimentary of device tree files based on feedback.

This series has the side-effect of getting the EC interface working properly on Pit, so the keyboard works. It also provides access to the TPS65090 PMIC, which means that the backlight is enabled.

Changes in v6:
- Rebase on top of samsung/master and 'git pull upstream-arm master'

Changes in v4:
- Address review nits from Minkyu
- Make this driver more like the one it came from
- Rebase on top of master (CONFIG_OF settings moved to Kconfig)
- Remove special FET_ERR_NOT_READY etc. as use standard errors

Changes in v3:
- Adjust device tree file based on Robert Baldyga's example

Changes in v2:
- Add new patch to enable keyboard on pit
- Add new patch to split out cros_ec drivers
- Add new patch to use 900MHz ARM frequeny in SPL for peach_pit
- Avoid using a common file, and just add a device tree
- Don't enable the cros_ec on smdk5420
- Fix 'cashe' typo in commit subject
- Fix device tree base addresses
- Leave CONFIG_SERIAL3 in the individual board files
- Leave in a few configs which are not in fact common to all boards
- Reduce the number of common elements to avoid needing #undefs later
- Slightly reword the commit message

Simon Glass (15):
Exynos: Use 900MHz ARM frequency in SPL for peach_pit
exynos5: Enable data cache
cros_ec: power: Add a tunnelled version of the tps65090 driver
cros_ec: exynos: Use the correct tps65090 driver in each case
dm: exynos: Split out the cros_ec drivers
exynos: dts: Add device tree node for cros_ec keyboard
exynos: Rename -dt config files to -common
exynos: Move common exynos settings into a common file
exynos: Move common smdk5420 things to common file
exynos: config: Move cros_ec and tps65090 out of smdk boards
config: Move arndale to use common exynos5250 file
config: Move smdkv310 to use common exynos4 file
samsung: Enable device tree for s5p_goni
samsung: Enable device tree for smdkc100
exynos: Enable pre-relocation malloc()

 arch/arm/Kconfig                                   |  13 +-
 arch/arm/cpu/armv7/exynos/Kconfig                  |   1 +
 arch/arm/cpu/armv7/s5pc1xx/Kconfig                 |  25 +++
 arch/arm/dts/Makefile                              |   3 +
 arch/arm/dts/exynos4210-smdkv310.dts               |  21 ++
 arch/arm/dts/exynos5420-peach-pit.dts              |  57 +++++-
 arch/arm/dts/s5pc1xx-goni.dts                      |  28 +++
 arch/arm/dts/s5pc1xx-smdkc100.dts                  |  29 +++
 arch/arm/include/asm/arch-s5pc1xx/periph.h         |  61 ++++++
 arch/arm/include/asm/arch-s5pc1xx/pinmux.h         |  50 +++++
 configs/s5p_goni_defconfig                         |   2 +
 configs/smdkc100_defconfig                         |   2 +
 configs/smdkv310_defconfig                         |   1 +
 drivers/mmc/s5p_sdhci.c                            |   2 -
 drivers/power/pmic/Makefile                        |   3 +-
 drivers/power/pmic/pmic_tps65090_ec.c              | 218 +++++++++++++++++++++
 include/configs/arndale.h                          | 195 +-----------------
 include/configs/{exynos4-dt.h => exynos-common.h}  | 110 +++--------
 include/configs/exynos4-common.h                   |  68 +++++++
 include/configs/{exynos5-dt.h => exynos5-common.h} | 126 ++----------
 include/configs/exynos5-dt-common.h                |  35 ++++
 .../{exynos5250-dt.h => exynos5250-common.h}       |   7 +-
 .../configs/{exynos5420.h => exynos5420-common.h}  |  22 ++-
 include/configs/odroid.h                           |   4 +-
 include/configs/origen.h                           |   5 +-
 include/configs/peach-pit.h                        |  16 +-
 include/configs/s5p_goni.h                         |   9 +-
 include/configs/s5pc210_universal.h                |   5 +-
 include/configs/smdk5250.h                         |  23 ++-
 include/configs/smdk5420.h                         |   5 +-
 include/configs/smdkc100.h                         |   6 +
 include/configs/smdkv310.h                         |  61 +-----
 include/configs/snow.h                             |  25 ++-
 include/configs/trats.h                            |   6 +-
 include/configs/trats2.h                           |   6 +-
 35 files changed, 760 insertions(+), 490 deletions(-)
 create mode 100644 arch/arm/cpu/armv7/s5pc1xx/Kconfig
 create mode 100644 arch/arm/dts/exynos4210-smdkv310.dts
 create mode 100644 arch/arm/dts/s5pc1xx-goni.dts
 create mode 100644 arch/arm/dts/s5pc1xx-smdkc100.dts
 create mode 100644 arch/arm/include/asm/arch-s5pc1xx/periph.h

 create mode 100644 arch/arm/include/asm/arch-s5pc1xx/pinmux.h
 create mode 100644 drivers/power/pmic/pmic_tps65090_ec.c
 rename include/configs/{exynos4-dt.h => exynos-common.h} (51%)
 create mode 100644 include/configs/exynos4-common.h
 rename include/configs/{exynos5-dt.h => exynos5-common.h} (64%)
 create mode 100644 include/configs/exynos5-dt-common.h
 rename include/configs/{exynos5250-dt.h => exynos5250-common.h} (88%)
 rename include/configs/{exynos5420.h => exynos5420-common.h} (71%)