spi doesn't work

[Hamza Dardour]

Hi everyone,


I try to enable the spi, and I configured the file that allow to enbale the spi for my board (mars board) 'board-mx6q_marsboard.c',spidev is loaded ( verified with lsmod ) and I can find the spidepv2.0 in the /dev folder, but I have no signal on the clk and the MOSI, when I try to use it with ( echo 121 >/dev/spidev2.0 )

this is the modification that I have made in the file '~/linux-imx/arch/arm/mach-mx6
/board-mx6q_marsboard.c'  to enable the spi  :

/*****************************************************/
/* ECSPI3*/
    MX6Q_PAD_DISP0_DAT2__ECSPI3_MISO,
    MX6Q_PAD_DISP0_DAT1__ECSPI3_MOSI,
    MX6Q_PAD_DISP0_DAT0__ECSPI3_SCLK,
    MX6Q_PAD_DISP0_DAT4__GPIO_4_25,
/*****************************************************/

static int mx6q_marsboard_spi2_cs[] = {
        MX6Q_MARSBOARD_ECSPI3_CS0,
};

static const struct spi_imx_master mx6q_marsboard_spi2_data __initconst = {
        .chipselect     = mx6q_marsboard_spi2_cs,
        .num_chipselect = ARRAY_SIZE(mx6q_marsboard_spi2_cs),
};

/*****************************************************/

{
        .modalias = "spidev",
        .max_speed_hz = 20000000,
        .bus_num = 2,
        .chip_select = 0,
        .mode =SPI_MODE_1,
        .platform_data = &imx6_marsboard__spi_flash_data,
    },
/*****************************************************/


Please help me,