This patch series makes it possible to use FT2232H ACBUS[7:0] pins as gpio pins from sandbox barebox. There are ready-to-use FT2232H-based boards: * FT2232H-56Q Mini-Module (http://www.ftdichip.com/Products/Modules/DevelopmentModules.htm#FT2232H-56_Mini) * FT2232 breakout board (http://dangerousprototypes.com/docs/FT2232_breakout_board) The main goal of adding gpio functionality to sandbox barebox is using it for connecting real i2c and spi devices to sandbox barebox. Sample dts-file for at24 i2c eeprom and at25 spi flash is included. Changes since v2 patch series (http://lists.infradead.org/pipermail/barebox/2018-January/031887.html): * ftdi USB IDs are moved to dts, parseopt_* functions are unused; * dts stuff moved to sandbox-libftdi-example.dtsi; * led example is added. Changes since v1 patch series (http://lists.infradead.org/pipermail/barebox/2017-October/031306.html): * rebase on top barebox v2017.12.0; * ds1307 i2c rtc driver works fine (i2c-gpio,scl-output-only is used); * parseopt_* functions are used for cmdline parsing. Changes since RFC v1 patch series (http://lists.infradead.org/pipermail/barebox/2017-February/029106.html): * rebase on top barebox v2017.10.0; * libftdi cmdline options are added; * device tree support is added. Antony Pavlov (3): sandbox: avoid symbol conflict for {open,read,close}dir sandbox: add gpio support with libftdi1 sandbox: add i2c and spi libftdi1 bit-bang example arch/sandbox/Kconfig | 1 + arch/sandbox/Makefile | 10 +- arch/sandbox/configs/sandbox_defconfig | 21 +++- arch/sandbox/dts/sandbox-libftdi-example.dtsi | 80 +++++++++++++ arch/sandbox/mach-sandbox/include/mach/linux.h | 12 ++ arch/sandbox/os/Makefile | 3 + arch/sandbox/os/ftdi.c | 154 +++++++++++++++++++++++++ drivers/gpio/Kconfig | 4 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-libftdi1.c | 137 ++++++++++++++++++++++ 10 files changed, 420 insertions(+), 3 deletions(-) create mode 100644 arch/sandbox/dts/sandbox-libftdi-example.dtsi create mode 100644 arch/sandbox/os/ftdi.c create mode 100644 drivers/gpio/gpio-libftdi1.c -- 2.15.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
