Dear MJ, Thanks for your reply.
I don't see the file in my copy. Probably it is not merged yet? Anyway, you just confirmed what I found so far. Do you use static setting in dmc_init_ddr3.c? I mean does it adapt to different DDR speeds and modules (if applicable)? In my mind, I am thinking to restructure arch/powerpc/cpu/mpc8xxx/ddr/ to driver/ddr/fsl/ so the same driver can be shared as far as the DDR IP is the same (or similar). York On 09/17/2013 09:34 AM, MJ embd wrote: > Hi York, > > There is no generic driver. AFAIK. Having worked on both mpc85xx and ARM > > I can tell you about samsung 5250. There are 2 uboots (one spl and other > main). > In case of sd/mmc boot the internal rom copies the spl uboot to iRAM > and the spl boot loader initialises the DDR3. > > you can check for board/samsung/smdk5250/dmc_init_ddr3.c > > -Regards > mj > > On 9/17/13, York Sun <york...@freescale.com> wrote: >> Albert, >> >> Pardon me if this is a dumb question. I have been working on powerpc >> platforms in the past. Now we (the developers I work with) are exploring >> ARM cores. I am searching how memory is initialized and found different >> solutions. Some platforms have memory ready before u-boot even starts, >> some simply write to a set of registers. I understand many platforms >> don't share the IP of DDR controller. I am wondering if there is generic >> DDR driver used by many ARM platforms, like the one we have for >> powerpc/mpc85xx SoCs. >> >> Regards, >> >> York >> >> _______________________________________________ >> U-Boot mailing list >> U-Boot@lists.denx.de >> http://lists.denx.de/mailman/listinfo/u-boot >> > > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
