How the DDR is getting initialized while booting of imx6slevk? How the values in imximage.cfg getting used? Where DDR register values will be available in the u-boot.imx after compilation.?

[jagsgediya]

We configure DDR timing and configuration related registers in the imximage.cfg file. i want to know how these values will be written to the registers? Where the content of imximage.cfg file resides in the built u-boot.imx? At what stage of booting this values will be written to the register?

[igorpadykov]

Hi jags

imximage.cfg (dcd header) contains data processed during boot by

iROM, using procedure described in sect.8.6.2 Device Configuration Data (DCD)

i.MX6SL Reference Manual (rev.2  6/2015).

Sect.8.6.1 Image Vector Table and Boot Data shows how this data is stored in image.

http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6SLRM.pdf

Best regards

igor

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