A lot of people want to boot from SD cards and our new version of Matrix already add the boot switch,easy change the boot device.
But for the older version of Matrix,we can use the following steps to boot from SD3 in Matrix.
- Matrix-SD3 slot
- Matrix-SD3.jpg (32.28 KiB) Viewed 1694 times
And the default u-boot parameters is :
bootcmd_mmc=run bootargs_base bootargs_mmc; mmc dev 3; mmc read ${loadaddr} 0x800 0x4000; bootm
need to change to mmc dev 2
setenv bootargs_mmc 'setenv bootargs ${bootargs} root=/dev/mmcblk0p1 rootwait video=mxcfb1:dev=ldb,LDB-XGA,if=RGB666 video=mxcfb0:dev=hdmi,1920x1080M@60 video=mxcfb1:off video=mxcfb2:off fbmem=28M consoleblank=0 quiet'
need to change
root=/dev/mmcblk1p1
Here is the two command
setenv bootcmd_mmc 'run bootargs_base bootargs_mmc; mmc dev 2; mmc read ${loadaddr} 0x800 0x4000; bootm'
setenv bootargs_mmc 'setenv bootargs ${bootargs} root=/dev/mmcblk1p1 rootwait video=mxcfb1:dev=ldb,LDB-XGA,if=RGB666 video=mxcfb0:dev=hdmi,1920x1080M@60 video=mxcfb1:off video=mxcfb2:off fbmem=28M consoleblank=0 quiet'
Then it will load file system and kernel from SD3.
Here is the shell in linux which can be used to burn SD cards
Matrix-SD3.zip- Burn SD Shell
- (508 Bytes) Downloaded 254 times
like this:
Matrix-SD3.sh /dev/sdx (your SD card path)
any question with this ,just send it here.
Thanks
Kind Regards
steven