Trouble with ddr3l on imx8m

[muhualuo]

Hi all experts,

I'm working with our IMX8M board, it is base on NXP's demo board, but we replace the lpddr4 with ddr3l.

I have succed on calibration the ddr3 memery through the tool of  mscale_ddr_tool_v210.

And success in generating the file of ddr3l_timing.c.

I read the DDR Tool user's guide(MSCALE_DDR_Tool_User_Guide.pdf) carefully, but I can't get how to use the created file(ddr3l_timing.c).

The version info of uboot is ‘U-Boot SPL 2018.03-imx_v2018.03_4.14.98_2.0.0_ga’，and my build environment  is  in standalone ,how can I configure and compile the uboot-imx to make use of the file ddr3l_timing.c, or what do I need to do to make my board work?

Thanks very very much!

muhua Luo

[igorpadykov]

Hi muhua

one can look at i.MX8MQ arm2 board supporting ddr3l:

Makefile\imx8mq_arm2\freescale\board - uboot-imx - i.MX U-Boot 

ddr3l\ddr\imx8mq_arm2\freescale\board - uboot-imx - i.MX U-Boot 

Best regards
igor
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[muhualuo]

Hi  igor,

very very very thank you for the reply.

Now, I have put two files(ddr_init.c and ddrphy_train.c) to my uboot-imx project ,and compiled success, generated  u-boot-nodtb.bin  and spl/u-boot-spl.bin ,but I don't know how to create flash.bin.

I read the standalone build  guide (i.MX8M Standalone Build.pdf),but it only described lpddr4, No DDR3 involved.

I need to generate DDR3 image(flash.bin),  how to operate ?

thank you.

Muhua Luo