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IMX28 Micro SD Card on SSP2

Question asked by Hariharan Veerappan on Nov 19, 2015
Latest reply on Dec 15, 2015 by Hariharan Veerappan

We have developed a custom board having Micro SD Card interfaced on IMX28 SSP2.

 

pinmux details are as given below,

 

static struct pin_desc mmc1_pins_desc[] = {

        { PINID_SSP2_SCK, PIN_FUN1, PAD_8MA, PAD_3V3, 1},

        { PINID_SSP2_MOSI, PIN_FUN1, PAD_8MA, PAD_3V3, 1},

        { PINID_SSP2_MISO, PIN_FUN1, PAD_8MA, PAD_3V3, 1},

        { PINID_SSP2_SS0, PIN_FUN1, PAD_8MA, PAD_3V3, 1},

        { PINID_SSP2_SS1, PIN_FUN2, PAD_8MA, PAD_3V3, 1},

        { PINID_SSP2_SS2, PIN_FUN2, PAD_8MA, PAD_3V3, 1},

}

 

struct imx_ssp_mmc_cfg ssp_mmc_cfg[1] = {

        {REGS_SSP2_BASE, HW_CLKCTRL_SSP2, BM_CLKCTRL_CLKSEQ_BYPASS_SSP2},

};

 

With this configuration, when we try to access micro SD Card, uboot console hangs.

Please share your inputs whether Micro SD Card can be interfaced with IMX28 SSP2 as above.

 

Thanks,

Hariharan.V.

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