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The Technical Reference Manual of  TI8148  platform depict that there are three MMC Card  Interface,  but I download the  PSP package , the code of mmc.h  file in ..arm/plat-omap/include/plat/mmc.h, it only mentions ti8148 only support two MMC/SD,  Whether there is some question about the third MMC interface, in out project, we use the third MMC/SD interface to link WL1271, now ,WL1271 can't work ;

#define TI81XX_HSMMC_SIZE 0x10000
#define TI816X_MMC1_BASE 0x48060100 /* TI816X MMC/SD config base */
#define TI816X_MMC1_HL_BASE 0x48060000 /* TI816X HL configuration*/
#if defined(CONFIG_TI8148EVM_WL12XX) || defined(CONFIG_MACH_DRA6XX)
#define TI814X_NR_MMC  2

#define TI814X_MMC1_BASE 0x48060100 /* TI814X MMC1/SD1 config base */
#define TI814X_MMC1_HL_BASE 0x48060000 /* TI814X HL configuration*/
#define TI814X_MMC2_BASE 0x481D8100 /* TI814X MMC2/SD2 config base */
#define TI814X_MMC2_HL_BASE 0x481D8000 /* TI814X HL configuration*/

#ifdef CONFIG_ARCH_TI814X
#define TI81XX_NR_MMC  TI814X_NR_MMC
#else /* TI816X */
#define TI81XX_NR_MMC  TI816X_NR_MMC
#endif

we add the third MMC/SD interface as following:

static struct omap2_hsmmc_info mmc[] = {
 {
  .mmc  = 1,  /* Hardware SD/MMC0 */
  .caps  = MMC_CAP_8_BIT_DATA,
  .gpio_cd = -EINVAL, /* Dedicated pins for CD and WP */
  .gpio_wp = -EINVAL,
  .ocr_mask = MMC_VDD_33_34,
  .nonremovable = true,
 },
 {
  .mmc  = 2,  /* Hardware SD/MMC1 */
  .caps  = MMC_CAP_4_BIT_DATA,
  .gpio_cd = -EINVAL,  /* Dedicated pins for CD and WP */
  .gpio_wp = -EINVAL,
  .ocr_mask = MMC_VDD_33_34,

 },
 {

/* WLAN_EN is 0*/  // G4 A2 WLAN_EN is not support
#define GPIO_WLAN_EN ((0 * 32) + 0)
/* WLAN_IRQ is GP1[7] */
#define GPIO_WLAN_IRQ ((1 * 32) + 7)
  .name           ="wl1271",
                .mmc  = 3,
  .caps  = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
  .gpio_cd = -EINVAL,
  .gpio_wp = -EINVAL,
  //.ocr_mask = MMC_VDD_165_195,
  .ocr_mask = MMC_VDD_33_34,
  .nonremovable = true,
 },

 {} /* Terminator */
};

but when I init WL1271 , it can't init success;

the system print "wl12xx mmc device initialization failed"

dev = mmc[2].dev;
 if (!dev) {
  pr_err("wl12xx mmc device initialization failed\n");
  return;
 }

I  want to know whether the third MMC/SD interface can't work in TI8148.