[U-Boot-Users] F.A.O Rune Torgersen or any MPC8266ADS-PCI u-b oot users

Scott McNutt ScottM at Orbacom.com
Tue Aug 5 20:41:56 CEST 2003


The stock u-boot-0.4.0 release tarball works just fine for me
with the following changes. Mileage may vary based on your
configuration ... but here's the only changes I made for mine:

In include/configs/MPC8266ADS.h:
Change CFG_FLASH_BASE to 0xFF800000
Change FLASH_BASE to 0xFF800000

In board/mpc8266ads/config.mk:
Change TEXT_BASE to 0xFFF00000

If SDRAM initialization gives you trouble ...
In board/mpc8266ads/mpc8266ads.c:
Change CONFIG_PBI to 0

Set your switches to:

SW1: All on
SW2: All on
SW3: 1-on 2-on 3-off 4-off
SW4: 1-on 2-off 3-on 4-off 5-on 6-on 7-on 8-off

You'll have to rtfm if you don't want to use the BCSR as the
HRCW source or if you want to monkey with the PCI
clocking options ;-)

BTW: PCI worked just fine with several different NICs.


> -----Original Message-----
> From:	C Doyle [SMTP:cdoyle35 at hotmail.com]
> Sent:	Tuesday, August 05, 2003 1:48 PM
> To:	u-boot-users at lists.sourceforge.net
> Cc:	nigel.dick at motorola.com
> Subject:	[U-Boot-Users] F.A.O Rune Torgersen or any MPC8266ADS-PCI
> u-boot users
> Hello all,
>         I am a newbie to u-boot and I am trying to get u-boot0.4.0 to 
> download to the flash on an MPC8266ADS-PCI development board.  I managed
> to 
> get u-boot0.2 on the flash and working as it should but unfortunately it 
> needed fixed for the PCI features of the 8266. I have tried 0.3 and 0.4
> but 
> cannot get it to work.  Both myself and some guys at Motorola have been 
> trying for 4-6 weeks now to get u-boot & PCI up and running.  Has anyone 
> managed to get u-boot to work on this platform with PCI support enabled?
> If 
> so, I would be greatful if could you mail the .srec to cd7 at hw.ac.uk
>         First of all I am using ELDK to cross compile the u-boot source 
> which seems to work fine.  The problem is that it doesn't seem to like the
> Flash very much.  I am using the Sharp type flash.  I have tried the both 
> the default configurations, with no success and also modified the
> following 
> settings, also without much success.
> 1.)    Within {u-boot}/include/configs/MPC8266ADS.h there are two choices 
> for CFG_HRCW_MASTER depending on which JP setting you want to use - does 
> anyone know which one is best to choose here?
> 2.)    Also the settings for the CFG_FLASH_BASE default to 0xFE000000.
> From 
> the MPC8266 user manual I noticed that the memory location this relates to
> is for a 32M SIMM whereas I have 8M which starts at FF800000.  I changed 
> this to mirror the user manual and update also the CFG_BR0_PRELIM 
> accordingly (0xFF801801).
> 3.)    I have also played around with the 
> {u-boot_dir}/board/mpc8266ads/config.mk file to no avail.
> If someone out there has managed to get this working it would be great if 
> you could either explain everything I need to do to get it blown to the 
> flash on this type of board. Like I say I am a newbie to this and probably
> need to plead ignorance, or
> b) have a working copy for an MPC8266ADS-PCI that you could send to me as
> I 
> can't proceed past this point.
> Any help is very much appreciated.  Thanks
> Ciaran Doyle
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