Where is DRAM initialisation done?

Fabio Estevam festevam at gmail.com
Mon Oct 13 16:02:23 PDT 2014


On Mon, Oct 13, 2014 at 7:45 PM, Stuart Longland <stuartl at vrt.com.au> wrote:

> In the old kernel[3] (based on Freescale's fork of 2.6.35), there was
> some DRAM init code stuffed in arch/arm/mach-mx28, which Technologic
> Systems patched to make it work.
>
> Does anyone happen to know where in the mainline kernel this is done, if
> at all?

The DDR is initialized only by the bootloader.

You can check arch/arm/cpu/arm926ejs/mxs/spl_mem_init.c in U-boot.



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