[U-Boot] [PATCH v6 0/6] Clean out SPL and enable driver model

[Simon Glass]

This series includes a few more patches aimed at getting rid of gdata, the
parallel global_data structure introduced on some ARM boards.

It also collects together the other patches which have been sent previously,
so that everything is in one place.

I would like get this agreed and applied to u-boot-dm this week if possible
so that we will at last have driver model available in SPL.

This series is available at u-boot-dm/spl-working.

Changes in v6:
- Make changes only when CONFIG_DM is defined, just in case
- Add new patch for TI boards to avoid gdata

Changes in v5:
- Rebase to master

Changes in v4:
- Squash the gdata revert patch into this one
- Allow gdata to survive unless CONFIG_DM is defined, for now
- Rebase on top of dm/master
- Adjust README to mention that lowlevel_init() should have no stack
- Add new patch to make the export interface support CONFIG_SYS_MALLOC_SIMPLE

Changes in v3:
- Drop extra blank line

Changes in v2:
- Remove gdata definition from ARM spl header file also
- Rebase on top of the SPI series
- Move docs to top-level README file and expand them to cover U-Boot proper
- Add Kconfig settings

Simon Glass (6):
  arm: Reduce the scope of lowlevel_init()
  arm: spl: Avoid setting up a duplicate global data structure
  dm: tegra: Enable driver model in SPL and adjust the GPIO driver
  arm: spl: Allow board_init_r() to run with a larger stack
  Make export interface support CONFIG_SYS_MALLOC_SIMPLE
  ti: armv7: am33xx: Move SPL SDRAM into the correct place

 Kconfig                            | 18 ++++++++++
 README                             | 69 ++++++++++++++++++++++++++++++++++++++
 arch/arm/cpu/armv7/am33xx/board.c  | 13 ++++---
 arch/arm/cpu/armv7/lowlevel_init.S | 22 ++++++++++--
 arch/arm/include/asm/spl.h         |  2 ++
 arch/arm/lib/crt0.S                | 13 +++++--
 arch/arm/lib/spl.c                 |  4 +++
 arch/arm/mach-tegra/Kconfig        |  3 ++
 board/nvidia/seaboard/seaboard.c   |  4 +--
 common/spl/spl.c                   | 35 +++++++++++++++++++
 drivers/gpio/Makefile              |  4 +++
 drivers/gpio/tegra_gpio.c          | 27 ++++++---------
 include/_exports.h                 |  2 ++
 include/configs/tegra-common.h     |  6 ----
 include/configs/ti_armv7_common.h  |  3 +-
 include/exports.h                  |  2 ++
 16 files changed, 192 insertions(+), 35 deletions(-)

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2.2.0.rc0.207.ga3a616c