why only this address in pci

why only this address in pci

[sumanth]

Hi all,

             We are porting ecos for ixp425 evalution board, we are using
the grg 
             for the purpose ,
              now we are able to go up to plf_hardware_init

              we are strucking up at cyg_hal_plf_pci_init
 
in pci  it is using this address  are there any specific reasons

*IXP425_PCI_PCIMEMBASE = 0x48494A4B
*IXP425_PCI_AHBMEMBASE = 0x00010203

i am strucking at 

HAL_PCI_CFG_WRITE_UINT32(0, 0, CYG_PCI_CFG_BAR_1, 0x01000000);

can help me what is the reason or any pointers at this stage of porting



thanks & regards,
Sumanth


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Re: why only this address in pci

[David Vrabel]

sumanth wrote:
> Hi all,
> 
>              We are porting ecos for ixp425 evalution board, we are using
> the grg 
>              for the purpose ,
>               now we are able to go up to plf_hardware_init
> 
>               we are strucking up at cyg_hal_plf_pci_init
>  
> in pci  it is using this address  are there any specific reasons
> 
> *IXP425_PCI_PCIMEMBASE = 0x48494A4B
> *IXP425_PCI_AHBMEMBASE = 0x00010203

This values ensure that the AHB addresses are the same as the PCI bus
addresses.  You don't want to change them.

David Vrabel
-- 
David Vrabel, Design Engineer

Arcom, Clifton Road           Tel: +44 (0)1223 411200 ext. 3233
Cambridge CB1 7EA, UK         Web: http://www.arcom.com/