emmc在linux系统中识别

芯片用的是AM3352，在uboot中可以识别板载emmc，但是进入内核后无法识别，打印信息如下

[2.145859] clock: disabling unused clocks to save power
[2.157817] Detected MACID=ec:11:27:cf:69:89
[2.164518] cpsw: Detected MACID = ec:11:27:cf:69:8b
[2.177536] input: gpio-keys as /devices/platform/gpio-keys/input/input1
[2.186170] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[2.193573] Waiting for root device /dev/mmcblk0p2...
[2.249808] mmc0: host does not support reading read-only switch. assuming write-enable.
[2.264256] mmc0: new high speed SDHC card at address aaaa
[2.271335] mmcblk0: mmc0:aaaa SC16G 14.8 GiB 
[2.282765]  mmcblk0: p1 p2
[2.365717] kjournald starting.  Commit interval 5 seconds
[2.375739] EXT3-fs (mmcblk0p2): using internal journal
[2.381299] EXT3-fs (mmcblk0p2): recovery complete
[2.390321] EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode
[2.397762] VFS: Mounted root (ext3 filesystem) on device 179:2.
[2.408939] devtmpfs: mounted
[2.413376] Freeing init memory: 388K

只能识别用于启动的SD卡，无法识别emmc

Jian Zhou：

Linux驱动层有加入eMMC的支持么？

kai jiang：

回复 Jian Zhou:

Jian ZhouLinux驱动层有加入eMMC的支持么？

Shine：

回复 Jian Zhou:

大于4G的emmc卡要接在MMC1上。

kai jiang：

回复 Shine:

您好，非常感谢您的回答！在我的板子上，emmc是用的4G的，而且是接在MMC1上的