On 09/19/2013 02:39 PM, Wolfgang Denk wrote: > Dear York Sun, > > In message <523b67d2.2050...@freescale.com> you wrote: >> >> So for ARM platforms, the majority don't have the flexibility of using >> different DIMMs and/or clocks? > > The majority of ARM systems are embedded designs which never use any > kind of DIMM, but raw soldered-on RAM chips.
That explains a lot. > >> Does it make sense to share the Freescale DDR driver across ARM and >> Powerpc? Or does it make more sense to selectively copy the mpc8xxx DDR >> driver to Freescale ARM subfolder to start with. If the similarity > > You are probably in a beter position to answer that than us - how many > ARM systems are there around that use the same memory controller as > the MPC8xxx? Zero as far as I know. But this is changing and this is why I brought it up. I don't want to maintain two set of drivers if not necessary. > >> For those who is not familiar with, Freescale is extending products to >> ARM cores. I am expecting peripherals stay relatively close, so many >> driver can be reused. > > Well, I'm not sure which exact products you might have in mind here, > but from what we've seen so far with the i.MX2x (and mxs), i.MX3x, > iMX5x and i.MX6 systems, there are commnon IP blocks like the FEC, but > so far I haven't seen this with the memory controller. I hope I am not revealing a secret. :) It has been announced that new SoCs are coming. It is still too early. But I am preparing software for it. > > And I haven't seen any single FSL ARM board in our lab yet that was > using any kind ot DIMM or such. > Thanks for confirmation. I will let you know once I learn what the board will look like (not very soon). York _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
