>> So, with the current code base, you can't autodetect ram size on the
>> atmel 926x.
>
> Argh. So this should be fixed.
Yes.
> Other architectures (like PPC) do all this in C. This should be
> possible on ARM, too.
Everything is possible. I fear it's not trivial to make a generic ARM
Dear Alessandro Rubini,
In message <20090716164143.ga9...@mail.gnudd.com> you wrote:
> > I've tried something very close to what is done in tqm8xx but I don't
> > manage to get something reliable : either it hangs or I get data abort.
> >
> > After checking the datasheet, I don't understand how w
Dear =?ISO-8859-1?Q?Eric_B=E9nard?=,
In message <4a5f4f09.2090...@eukrea.com> you wrote:
>
> After checking the datasheet, I don't understand how we can change the
> geometry of this SDRAM controler while running from SDRAM : each time we
> increase the colum number, the address are modified th
Hi Alessandro,
Alessandro Rubini a écrit :
> So, with the current code base, you can't autodetect ram size on the
> atmel 926x.
>
> I have the same problem, as I have boards that ship as either 64M or
> 128M. I'd configure for 128M and look for aliases, reconfiguring for
> 64M if needed. This c
> I've tried something very close to what is done in tqm8xx but I don't
> manage to get something reliable : either it hangs or I get data abort.
>
> After checking the datasheet, I don't understand how we can change the
> geometry of this SDRAM controler while running from SDRAM
No, you can't.
Dear Wolfgang,
Wolfgang Denk a écrit :
>> I'm not sure it's possible to use a generic geometry/timings there else
>> u-boot may never relocate.
>> How would you do this ?
>
> Well, normally you have 2 or 3 row/col combinations that have to be
> considered; you try these in turn until you find on
Dear =?ISO-8859-1?Q?Eric_B=E9nard?=,
In message <4a5f20db.2000...@eukrea.com> you wrote:
>
> > How about using get_ram_size() for auto-sizing and testing?
> >
> the RAM needs to be properly initialized in low level before being able
> to test it so its geometry (rom/columns) and timings must be
Dear Wolfgang Denk,
Wolfgang Denk a écrit :
> In message <1247735589-15527-1-git-send-email-e...@eukrea.com> you wrote:
>> CPUAT91 is built around Atmel's AT91SAM9260 and has up to 64MB of NOR
>> flash, up to 128MB of SDRAM, up to 2GB of NAND and includes a 10/100
>> Ethernet PHY in RMII mode.
> .
Dear Eric Benard,
In message <1247735589-15527-1-git-send-email-e...@eukrea.com> you wrote:
> CPUAT91 is built around Atmel's AT91SAM9260 and has up to 64MB of NOR
> flash, up to 128MB of SDRAM, up to 2GB of NAND and includes a 10/100
> Ethernet PHY in RMII mode.
...
> +int dram_init(void)
> +{
>
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