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M6.0.1_2.1.0 booting from SD on the SABRE-SD board

Question asked by Shibusawa on Aug 10, 2016
Latest reply on Aug 11, 2016 by igorpadykov

Dear Sir

 

I want to ask about booting from SD on the SABRE-SD board.

I have downloaded the Image files by referring to Android Quick Start Guide, Rev. M6.0.1_2.1.0, 07/2016.

(3.3 Downloading board images)

 

I set the U-Boot environment variables by referring to Android Quick Start Guide.

U-Boot > setenv bootcmd boota mmc2

U-Boot > setenv bootargs console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32

video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0

consoleblank=0 androidboot.hardware=freescale cma=384M

U-Boot > saveenv

At this time, it does not boot correctly.

 

Next, set the U-Boot environment variables by referring to Android User's Guide, Rev. M6.0.1_2.1.0, 07/2016.

U-Boot > setenv bootcmd boota mmc1

U-Boot > setenv bootargs console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32

video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0

consoleblank=0 androidboot.hardware=freescale cma=384M

U-Boot > saveenv

 

It seems that it boots the Android M6.0.1_2.1.0 correctly.

I am confusing.

 

Q1.

Setting for U-Boot environment variables described in Android User's Guide is correct?

I think that the SD3 slot on SABRE-SD board is mmc2.

 

Please advise for me.

 

Best Regards,

Eishi SHIBUSAWA

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