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

PATCH New Yangbo Lu 2 participants 2 messages Sep 17, 2015 – Nov 2, 2015 MMC, SD and SDIO

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Yangbo Lu

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PATCH v2 1/4 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 <[email protected]>

---
Changes for v2:
- Modified the commit message
- Added a patch enabling EVDD automatic control

---
 board/freescale/common/qixis.h | 2 ++
 drivers/mmc/fsl_esdhc.c        | 3 +++
 2 files changed, 5 insertions(+)
board/freescale/common/qixis.h +2 -0
index 51ce9c3..450cd0d 100644
@@ -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
drivers/mmc/fsl_esdhc.c +3 -0
index 0b37002..639ec02 100644
@@ -747,6 +747,9 @@ 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;
Signature · 1 line
2.1.0.27.g96db324
#1 lore raw

PATCH v2 1/4 mmc: fsl_esdhc: enable dat[4:7] for eMMC4.5 Adapter Card

Quoted 8 lines · Yangbo Lu

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 <[email protected]>

---
Changes for v2:
- Modified the commit message
- Added a patch enabling EVDD automatic control

Applied to u-boot-mpc85xx, awaiting upstream. Thanks.

York