uboot ddr customization

[vladimirchernin]

Hi!

Our custom board based on IMX6ULL evk and it uses LPDDR2 2gb

we need to custom our uboot and linux 

in the mx6ull_customboard.h (uboot )

i changed the size of ddr 

#define PHYS_SDRAM_SIZE SZ_2G // for 2 Giga

should i change  next parameters

#define CONFIG_NR_DRAM_BANKS 1    // my memory has 8 bank
#define PHYS_SDRAM MMDC0_ARB_BASE_ADDR  

should i change these 2 params numbers of banks and physical address?

Thanks

[igorpadykov]

Hi Vladimir

if board is based on nxp evk design I believe these settings

can be left in default state. It is necessary to run ddr test

i.MX6/7 DDR Stress Test Tool V2.80 

and change uboot/../mx6ullevk/imximage_lpddr2.cfg with new calibration

coefficients found from test.

Best regards
igor
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