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beagleboard x15 SD卡无法启动

各位大神:

我的beagleboard x15 ,插入SD卡时,无法从SD卡启动,UART不输出任何信息。拔掉SD卡,可以从EMMC启动。

SD卡的启动制作是按照教程 software-dl.ti.com/…/Overview.html

另外我发现,我的beagleboard x15 上面的CPU是AM5729。

请各位大神赐教,怎么解决。

yongqing wang:

我记得应该是AM5728吧

yongqing wang:

回复 yongqing wang:

你到beagleboard.org/getting-started查查是否是什么最新版

user4047359:

回复 yongqing wang:

您好,确实是AM5729,会是芯片问题吗?

user4047359:

回复 yongqing wang:

从EMMC启动,log输出的是 C版。

yongqing wang:

回复 user4047359:

你在EMMC启动查看你的系统什么是么版本的

user4047359:

回复 yongqing wang:

下面是EMMC启动的输出:

U-Boot 2017.01-00341-gb2aad42503 (Jun 21 2017 – 10:56:05 -0500), Build: jenkins-github_Bootloader-Builder-581

CPU: DRA752-GP ES2.0
Model: TI AM5728 BeagleBoard-X15 rev C
Board: BeagleBoard X15 REV C.00
DRAM:2 GiB
MMC:OMAP SD/MMC: 0, OMAP SD/MMC: 1
MMC: no card present
** Bad device mmc 0 **
Using default environment

setup_board_eeprom_env: beagle_x15_revc
SCSI:SATA link 0 timeout.
AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst
scanning bus for devices…
Found 0 device(s).
Net:<ethaddr> not set. Validating first E-fuse MAC
cpsw
Press SPACE to abort autoboot in 2 seconds
usb_boot is currently disabled
scsi_boot is currently disabled
MMC: no card present
MMC: no card present
switch to partitions #0, OK
mmc1(part 0) is current device
Scanning mmc device 1
Checking for: /uEnv.txt …
Checking for: /boot/uEnv.txt …
390 bytes read in 10 ms (38.1 KiB/s)
Loaded environment from /boot/uEnv.txt
Checking if uname_r is set in /boot/uEnv.txt …
debug: [uname_r=4.9.49-cross] …
loading /boot/vmlinuz-4.9.49-cross …
9581992 bytes read in 3245 ms (2.8 MiB/s)
loading /boot/dtbs/4.9.49-cross/am57xx-beagle-x15-revc.dtb …
152979 bytes read in 109 ms (1.3 MiB/s)
loading /boot/initrd.img-4.9.49-cross …
6189597 bytes read in 2103 ms (2.8 MiB/s)
debug: [console=ttyO2,115200n8 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet] …

yongqing wang:

回复 user4047359:

Model: TI AM5728 BeagleBoard-X15 rev C可能AM5728和AM5729是兼容的,你用AM5828版的系统应该是可以用的

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