iMX6ULL boot form eMMC setting

[paultran]

hi, i make mainboard with imx6ull and boot defaulf from eMMC. 

but it can not work well. 

attached is booting setup resistor via HW and circuit of eMMC design, i follow NXP ref design. 

anybody have any suggest for bring up or debug. 

thanks

[igorpadykov]

Hi Paul

one can check with jtag boot configuration in SRC_SBMR1,2,

if it was correctly sampled. Also useful to check 24MHZ, 32.768kHz clocks

and prolong POR up to 1 sec. Then follow debug procedure described on

https://community.nxp.com/thread/307723 

Best regards
igor
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