[ECOS] Changing the default boot flash device in Redboot

Vanitha Ramaswami vanitha@agilis.st.com.sg
Wed Dec 1 11:21:00 GMT 2004


hello,
sorry. prev message got sent out accidentally.

 
 I have another doubt. In mlt_arm_xscale_grg_rom.ldi file should i update the RAM Origin also in the MEMORY section
 
 MEMORY
 {
  ram: ORIGIN=0x51000000, LENGTH=0x2000000
  rom: ORIGIN=0x51000000, LENGTH=0x40000
 }
 
And in mlt_arm_xscale_grg_ram.ldi should this be like this..?

MEMORY
{
 ram: ORIGIN=0x51000000, LENGTH=0x2000000

}

Is this ok.?

Thanks
Vanitha
> 
> On Tuesday, November 30, 2004 5:33 PM, Andrew Lunn [SMTP:andrew@lunn.ch] wrote:
> > On Tue, Nov 30, 2004 at 05:17:42PM -0000, Vanitha Ramaswami wrote:
> > > Hello,
> > > 
> > > The hardware person says there is a jumper in our custom IXP425 board, that will allow us to boot from IXP425 Flash located on CS1.
> > > Can you tell me, what changes should i do to redboot to boot from the flash in CS1.
> > 
> > You need to modify the .h and .ldi file in your hals include/pkgconf/
> > directory. You need to give the address the FLASH is mapped to when
> > its not at address location 0.
> > 
> >         Andrew
> > 
> > > 
> > > THanks
> > > Vanitha
> > > 
> > > On Tuesday, October 05, 2004 4:59 PM, Andrew Lunn [SMTP:andrew@lunn.ch] wrote:
> > > > On Tue, Oct 05, 2004 at 04:50:53PM -0000, Vanitha Ramaswami wrote:
> > > > > Hi All,
> > > > > 
> > > > > I want to change the default boot flash device changed to another flash 
> > > > > chip located in CS1 in my IXP425 reference platform. The version of redboot 
> > > > > i have right now boots from the flash located in CS0. Where should i change 
> > > > > in redboot in order to boot from the flash chip located in CS1 ?  I am able 
> > > > > to recompile the redboot source and run in my platform. Can you tell the 
> > > > > places where should i look at to change the default boot flash chip?
> > > > 
> > > > Before changing the software, i have another question. Is the hardware
> > > > capable of booting from a different address?
> > > > 
> > > > Normally at boot time the flash is mapped to address 0. Early on in
> > > > the boot sequence this mapping is changed to that there is RAM at
> > > > address 0. Can you control the hardware which does this mapping so
> > > > that it maps a different flash device to 0 at boot time? Is there a
> > > > jumper on the board?
> > > > 
> > > >         Andrew
> > > > 
> > 
> > 

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