[U-Boot] [PATCH v3 12/15] arm, davinci: Add SPL support for DA850 SoCs

[Heiko Schocher <hs@denx.de>]

Hello Christian,

Christian Riesch wrote:
> Hi Tom,
> 
> On Tue, Nov 29, 2011 at 7:27 PM, Tom Rini <tom.rini@gmail.com> wrote:
>> On Fri, Nov 25, 2011 at 5:37 AM, Christian Riesch
>> <christian.riesch@omicron.at> wrote:
>>> This code adds an SPL for booting from SPI flash on DA850 SoCs.
>>>
>>> Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
>>> Cc: Heiko Schocher <hs@denx.de>
>>> Cc: Sandeep Paulraj <s-paulraj@ti.com>
>> Parts of this remind me of omap-common/spl.c so I think longer term we
>> need to figure out if we can make everyone live with a few more common
>> SPL files and functions.
> 
> I stole some ideas from omap-common/spl.c and yes, there are similarities :-)
> 
>>  Aside, what are the size limitations you're
>> dealing with here?  Thanks!
> 
> Size limitation of the SPL? I am using the AM1808 which has 128kB
> internal SRAM, i think it is the same for all DA8xx SoCs.

If we are using the "nor boot method" in "Legacy NOR Boot" mode
on the am1808 we must take care, that we can copy only 16kB from
NOR to the internal SRAM! (But I think, we don't need to take care of
this mode, as we can use when booting from NOR the "direct NOR Boot"
mode, where code is exectuted directly from NOR. This mode is used
on the enbw_cmc board)

bye,
Heiko
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