imx6 sabresd customized board with sd card failed booting

[vishwanathraju]

Hi,

I am facing board bring up for i.mx6solo customized board. The basic features are

1. SD3 for booting
2. LPDDR2 : Configured with reference to Mx6DQSDL LPDDR2 Script Aid V0.01.xls
3. UART3 for Debug

Using:

SDK: L3.0.35_4.1.0_130816_source

Linux BSP: board-mx6q_sabresd.c - attached

u-boot board file: mx6q_sabersd.c - attached

I have a LTIB installed, u-boot is buled with the script (./build_uboot.sh sd2).

Can any one suggest me basic steeps need to be taken care to bring up the board ASAP.

Regards,

Vishwa

Original Attachment has been moved to: board-mx6q_sabresd.c.zip

Original Attachment has been moved to: mx6q_sabresd.c.zip

[VladanJovanovic]

Do you have JTAG connected? Easiest way is to run memory init script through JTAG and load u-boot to external memory to see it is well configured and running.

Once this is verified, I guess you updated u-boot DCD table with correct memory settings?

When you try to boot, do you see activity on SD3 pins, so that internal ROM is trying to fetch u-boot from SD card?

I hope you followed data in reference manual (Table 44-7. LPDDR2 and DRAM pin mux mapping) for connecting LPDDR2 correctly to i.MX 6.

[vishwanathraju]

Hi Vladan Jovanovic,

Thanks for your quick replay.

I don't have JTAG connected, Let me crossverify LPDDR2 and DRAM (i,e. Table 45-7) pin mux mapping cross verify and i will get back to you.

Thanks & Regards,

Vishwa