From: Jagan Teki jagan@amarulasolutions.com
Add imx6_pcie_toggle_reset on board file using dm_gpio_* calls for OF_CONTROL configs.
Cc: Stefano Babic sbabic@denx.de Cc: Fabio Estevam fabio.estevam@nxp.com Cc: Michael Trimarchi michael@amarulasolutions.com Signed-off-by: Jagan Teki jagan@amarulasolutions.com --- board/freescale/mx6sabresd/mx6sabresd.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+)
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c index 2ed4e50..7c28cc7 100644 --- a/board/freescale/mx6sabresd/mx6sabresd.c +++ b/board/freescale/mx6sabresd/mx6sabresd.c @@ -561,6 +561,37 @@ int imx6_pcie_toggle_power(void) #endif return 0; } + +int imx6_pcie_toggle_reset(void) +{ +#ifdef CONFIG_PCIE_IMX_PERST_GPIO + struct gpio_desc reset; + int ret; + + ret = dm_gpio_lookup_name("GPIO7_12", &reset); + if (ret) { + printf("Cannot get GPIO7_12\n"); + return ret; + } + + ret = dm_gpio_request(&reset, "reset"); + if (ret) { + printf("Cannot request GPIO7_12\n"); + return ret; + } + + dm_gpio_set_dir_flags(&reset, GPIOD_IS_OUT); + + dm_gpio_set_value(&reset, 0); + mdelay(20); + dm_gpio_set_value(&reset, 1); + mdelay(20); + +#else + puts("WARNING: Make sure the PCIe #PERST line is connected!\n"); +#endif + return 0; +} #endif
#ifndef CONFIG_OF_CONTROL