[U-Boot] [PATCH v5 0/3] i.MX6 SabreSD and SabreAUTO bmode support

[Otavio Salvador]

This adds the bmode support for i.MX6 SabreSD and SabreAUTO
boards. This allows user to choose the boot mode at runtime making it
easy to boot from USB or other media.

This patchset has been tested in SabreSD but only build tested in
SabreAUTO as I don't have the board for testing.

Changes in v5:
- Improve comment in code for easier understanding (Fabio)
- Fix build failure in SabreAUTO
- Move include of boot_mode.h header to this patch

Changes in v4:
- Fix switch code to proper break (Stefano)

Changes in v3:
- Drop change in bootdelay; the change where done by me while testing
  it and I mistakenly included it.

Changes in v2:
- Improve commit log
- Rework code to use a 'ret' variable (Fabio)

Otavio Salvador (3):
  mx6qsabresd: Document the mapping of USDHC[2-4]
  mx6qsabresd: Fix card detection for invalid card id case
  mx6qsabre{sd,auto}: Add boot mode select

 board/freescale/mx6qsabreauto/mx6qsabreauto.c | 18 +++++++++++
 board/freescale/mx6qsabresd/mx6qsabresd.c     | 43 ++++++++++++++++++++++++---
 include/configs/mx6qsabre_common.h            |  2 ++
 3 files changed, 59 insertions(+), 4 deletions(-)

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1.8.1