[RFC 0/2] sandbox: add gpio support with libftdi1

[Antony Pavlov]

This patch series makes it possible to use FT2232H ACBUS[7:0]
pins as gpio pins from sandbox barebox.

I have tested output gpio functionality by connecting
a LED to ACBUS[0] and lightening it with gpio_direction_output
and gpio_set_value barebox commands.

Also I have performed input test with ACBUS[0] -> ACBUS[1] loopback.

The main goal of adding gpio functionality to sandbox barebox
is using it for connecting real i2c and spi devices to sandbox barebox
(not tested yet).


Antony Pavlov (2):
  sandbox: avoid symbol conflict for {open,read,close}dir
  sandbox: add gpio support with libftdi1

 arch/sandbox/Kconfig                           |   1 +
 arch/sandbox/Makefile                          |  10 +-
 arch/sandbox/board/board.c                     |   7 ++
 arch/sandbox/mach-sandbox/include/mach/linux.h |  11 ++
 arch/sandbox/os/Makefile                       |   3 +
 arch/sandbox/os/ftdi.c                         | 167 +++++++++++++++++++++++++
 drivers/gpio/Kconfig                           |   4 +
 drivers/gpio/Makefile                          |   1 +
 drivers/gpio/gpio-libftdi1.c                   | 116 +++++++++++++++++
 9 files changed, 318 insertions(+), 2 deletions(-)
 create mode 100644 arch/sandbox/os/ftdi.c
 create mode 100644 drivers/gpio/gpio-libftdi1.c

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2.11.0