TM4C123FH6PM: TIRTOS - FatFs Raw, creating a new file aborts program

Hello Everyone, 

I am trying to port FatSDRaw example to use a USB Mass Storage Device. 

There is no direct example for usb using fatfs directly so I ported the usb example from 129 to 123 first.

I can read the usb stick and open files and read their contents using fatfs calls.

This gives me confidence that the issue I am facing is not USB related. 

However, when I try to create a new file I get a system abort. 

To test If I was doing something wrong I took a FatSDRaw example for 129 and changed SPI parts to USBMscFat and I can create new files without issues.

I have FatFS enabled on my cfg file as well. 

I traced the abort to the following function call by using the debugger. 

ff.c -> f_open -> line 2509 "dw = GET_FATTIME();" 

GET_FATTIME(); is a define that calls get_fattime();

diskio.c get_fattime calls ti_mw_fatfs_getFatTime();

which is implemented in pem4f.c file created by xdc tools. 

Contents of the function are following:

Int32 ti_mw_fatfs_getFatTime(Void)
{
    time_t seconds;
    UInt32 fatTime;
    struct tm *pTime;

    seconds = time(NULL);

    pTime = localtime(&seconds);

    /*
     *  localtime() sets pTime->tm_year to number of years
     *  since 1900, so subtract 80 from tm_year to get FAT time
     *  offset from 1980.
     */
    fatTime = ((UInt32)(pTime->tm_year - 80) << 25) |
        ((UInt32)(pTime->tm_mon) << 21) |
        ((UInt32)(pTime->tm_mday) << 16) |
        ((UInt32)(pTime->tm_hour) << 11) |
        ((UInt32)(pTime->tm_min) << 5) |
        ((UInt32)(pTime->tm_sec) >> 1);

    return ((Int32)fatTime);
}

on the seconds = time(NULL); line the time function is called. 

time_t ATTRIBUTE time(time_t *tout)
{
    UInt32 t;

    /* Seconds_get() returns number of seconds since Jan 1, 1970 00:00:00 GMT. */
    t = ti_sysbios_hal_Seconds_get();

#if defined(__ti__)
    /*
     *  TI time() function returns seconds since 1900, so add the number
     *  of seconds from 1900 to 1970 (2208988800).
     */
    t += 2208988800;
#endif

    if (tout) {
        *tout = t;
    }

    return (t);
}

On line  t = ti_sysbios_hal_Seconds_get(); 

Seconds_get(); function in Seconds.c file is called.

UInt32 Seconds_get(Void)
{
    UInt32            curSeconds;
    UInt32 seconds = 0;

    curSeconds = HWREG(HIB_RTCC);

    seconds = curSeconds - Seconds_module->refSeconds +
        Seconds_module->setSeconds;

    return (seconds);
}

This is where I get the abort. 

It accesses the Hibernation RTC register so my gut feeling is somehow RTC is not enabled and goes to hardfault.

Did anybody experience a similar issue before that they can help me?