Re: Re[2]: [PATCH] [RFC] at91sam9263ek support

["roberto.lavarini" <roberto.lavarini@gmail.com>]

Dear Evgeniy,
   I looked the file "at91sam9263ek.h", and the dataflash address to set in
SAM-BA seem to be 0x8000. In fact, if I use the same at91bootloader with
uboot with this address, uboot starts correctly. If I use patched redboot
for at91sam9263ek, redboot doesn't start and I only see "RomBoot>" shell. I
used exactly your patch, apply on ecos-cvs, and the only thing I do, is to
set RAM as default value of CYG_HAL_STARTUP in
packages/hal/arm/at91/at91sam9/current/cdl/hal_arm_at91sam9.cdl. I
downloaded redboot on my board with SAM-BA using DataFlash section with
0x8000 destination address. I don't understand why redboot doesn't start on
my board.

Roberto


Evgeniy Dushistov wrote:
> 
> On Fri, Nov 28, 2008 at 04:06:38PM +0100, Roberto Lavarini wrote:
>> Well, the compilation of redboot with your Patch ends successfully if I
>> set
>> RAM as default value of CYG_HAL_STARTUP in "hal_arm_at91_sam9.cdl" file.
>> If
>> the default value remains ROM the following error will appears in
>> compilation time:
>> 
>> /home/roberto/ecos-cvs/ecos/packages/hal/arm/arch/current/src/redboot_linux_exec.c:75:32:
>> error: pkgconf/mlt_arm_at91sam9263ek_rom.h: No such file or directory
>> 
>> So I load at91bootstrap to the board and then I try to load redboot
>> (compiled with RAM default value) in dataflash via sam-ba, but I have
>> some
>> difficult to understand the address to set in sam-ba where the redboot
>> image
>> will be loaded. I try to use 0x00100000 or 0x4000 (the address that I
>> used
>> with U-boot) but they don't work correctly, and on debug port I only see
>> "RomBoot>" shell. Do you have some suggestion to give to me?
>> 
> 
> Address in dataflash depends on how you build at91bootstrap,
> there is configuration file, I don't remember exactly, like
> board/at91sam9263ek/dataflash/at91sam9263ek.h
> where you point address and size in dataflash,
> and address in sdram where put what it load in dataflash.
> sdram address should be 0x23f00000
> 
> Also check that your config's setting is right:
> - communication channel be DBGU and should be only one
> - main oscillator frequency should be 16 and something Mhz don't
>   remember details, look at board's documentation, divider and
>   multiplier should be the same as at91boostrap set
> - redboot should not expect that vectors (pointers  to services, like
>   print to console and so on) are initialized, option name is like "work
> with
>   redboot"
> 
> -- 
> /Evgeniy
> 
> 
> 

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