mmc: fsl_esdhc: enable dat[4:7] for eMMC4.5 Adapter Card

If adapter card type identification is supported for platform, we would
enable dat[4:7] for eMMC4.5 Adapter Card.

Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

diff --git a/board/freescale/common/qixis.h b/board/freescale/common/qixis.h
index 51ce9c3..450cd0d 100644 (file)
--- a/board/freescale/common/qixis.h
+++ b/board/freescale/common/qixis.h
@@ -127,6 +127,8 @@ void qixis_write_i2c(unsigned int reg, u8 value);
 #define QIXIS_ESDHC_NO_ADAPTER                  0x7    /* No Card is Present*/
 #define QIXIS_SDCLKIN          0x08
 #define QIXIS_SDCLKOUT         0x02
+#define QIXIS_DAT5_6_7         0X02
+#define QIXIS_DAT4             0X01
 #endif
 
 #endif

diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index f36b794..5c20627 100644 (file)
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -748,6 +748,9 @@ void mmc_adapter_card_type_ident(void)
 
        switch (card_id) {
        case QIXIS_ESDHC_ADAPTER_TYPE_EMMC45:
+               value = QIXIS_READ(brdcfg[5]);
+               value |= (QIXIS_DAT4 | QIXIS_DAT5_6_7);
+               QIXIS_WRITE(brdcfg[5], value);
                break;
        case QIXIS_ESDHC_ADAPTER_TYPE_SDMMC_LEGACY:
                break;