int k64_sdhc_initialize(void)
{
int ret;
/* Configure GPIO pins */
kinetis_pinconfig(GPIO_SD_CARDDETECT);
/* Attached the card detect interrupt (but don't enable it yet) */
kinetis_pinirqattach(GPIO_SD_CARDDETECT, k64_cdinterrupt);
/* Configure the write protect GPIO -- None */
/* Mount the SDHC-based MMC/SD block driver */
/* First, get an instance of the SDHC interface */
mcinfo("Initializing SDHC slot %d\n", MMCSD_SLOTNO);
g_sdhc.sdhc = sdhc_initialize(MMCSD_SLOTNO);
if (!g_sdhc.sdhc)
{
mcerr("ERROR: Failed to initialize SDHC slot %d\n", MMCSD_SLOTNO);
return -ENODEV;
}
/* Now bind the SDHC interface to the MMC/SD driver */
mcinfo("Bind SDHC to the MMC/SD driver, minor=%d\n", MMSCD_MINOR);
ret = mmcsd_slotinitialize(MMSCD_MINOR, g_sdhc.sdhc);
if (ret != OK)
{
syslog(LOG_ERR, "ERROR: Failed to bind SDHC to the MMC/SD driver: %d\n", ret);
return ret;
}
syslog(LOG_INFO, "Successfully bound SDHC to the MMC/SD driver\n");
/* Handle the initial card state */
k64_mediachange();
/* Enable CD interrupts to handle subsequent media changes */
kinetis_pinirqenable(GPIO_SD_CARDDETECT);
return OK;
}
int fmuk66_sdhc_initialize(void)
{
int ret;
struct fmuk66_sdhc_state_s *sdhc = &g_sdhc;
/* Configure GPIO pins */
VDD_3V3_SD_CARD_EN(true);
kinetis_pinconfig(GPIO_SD_CARDDETECT);
/* Attached the card detect interrupt (but don't enable it yet) */
kinetis_pinirqattach(GPIO_SD_CARDDETECT, fmuk66_cdinterrupt, sdhc);
/* Configure the write protect GPIO -- None */
/* Mount the SDHC-based MMC/SD block driver */
/* First, get an instance of the SDHC interface */
mcinfo("Initializing SDHC slot %d\n", CONFIG_NSH_MMCSDSLOTNO);
sdhc->sdhc = sdhc_initialize(CONFIG_NSH_MMCSDSLOTNO);
if (!sdhc->sdhc) {
mcerr("ERROR: Failed to initialize SDHC slot %d\n", CONFIG_NSH_MMCSDSLOTNO);
return -ENODEV;
}
// Testing done on SanDISK HC all failed sd_bench with Drive/Slew other than default and _PIN_OUTPUT_FAST|_PIN_OUTPUT_HIGHDRIVE
// _PIN_OUTPUT_FAST|_PIN_OUTPUT_HIGHDRIVE Square noisy, pass SanDISK HC
// _PIN_OUTPUT_FAST|_PIN_OUTPUT_LOWDRIVE Square noisy, pass SanDISK HC
// _PIN_OUTPUT_HIGHDRIVE|_PIN_OUTPUT_SLOW sinusoidal fail SanDISK HC pass SanDISK HC1
// _PIN_OUTPUT_LOWDRIVE|_PIN_OUTPUT_SLOW sinusoidal fail SanDISK HC pass SanDISK HC1
// _PIN_OUTPUT_SLOW sinusoidal fail SanDISK HC pass SanDISK HC1
// This up dating of the driver setting is for EMI issue with GPS and FCC
// With this setting the clock is sinusoidal N.B. sd_bench fails on SanDISK HC, but
// Passes SanDISK **HC1** - use HC1 or Kingston cards!
kinetis_pinconfig(PIN_SDHC0_DCLK | _PIN_OUTPUT_HIGHDRIVE | _PIN_OUTPUT_SLOW);
/* Now bind the SDHC interface to the MMC/SD driver */
mcinfo("Bind SDHC to the MMC/SD driver, minor=%d\n", CONFIG_NSH_MMCSDMINOR);
ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, sdhc->sdhc);
if (ret != OK) {
syslog(LOG_ERR, "ERROR: Failed to bind SDHC to the MMC/SD driver: %d\n", ret);
return ret;
}
syslog(LOG_ERR, "Successfully bound SDHC to the MMC/SD driver\n");
/* Handle the initial card state */
fmuk66_mediachange(sdhc);
/* Enable CD interrupts to handle subsequent media changes */
kinetis_pinirqenable(GPIO_SD_CARDDETECT);
return OK;
}
