[ECOS]Question about exec the linux 2.4.19-rmk7-pxa3

[ECOS]Question about exec the linux 2.4.19-rmk7-pxa3

[Pred]

Dear ECOS experts,

I use the redboot exec command to load the linux 2.4.19-rmk7-pxa3 kernel,
but it seems i can't pass the kernel command line to it. In the
configuration tool, I've set the base address of kernel tag to 0x100. I put
some code in the arch/arm/kernel/setup.c to dump memory from 0xC0000100, and
find that the memory content is set up as expected. But the kernel just
igore any thing I passed. Could you give me a hand? Thanks in advance.


Best regards,

Pred


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Re: [ECOS]Question about exec the linux 2.4.19-rmk7-pxa3

[Gary Thomas]

On Sat, 2003-09-13 at 05:03, Pred wrote:
> Dear ECOS experts,
> 
> I use the redboot exec command to load the linux 2.4.19-rmk7-pxa3 kernel,
> but it seems i can't pass the kernel command line to it. In the
> configuration tool, I've set the base address of kernel tag to 0x100. I put
> some code in the arch/arm/kernel/setup.c to dump memory from 0xC0000100, and
> find that the memory content is set up as expected. But the kernel just
> igore any thing I passed. Could you give me a hand? Thanks in advance.
> 

This is a Linux kernel issue - you must configure it to pay attention to
the data passed to it by RedBoot.

Be sure and adjust linux/arch/arm/boot/Makefile to match your setup:
	PARAMS_PHYS      = 0xc0000100

-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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Re: [ECOS]Question about exec the linux 2.4.19-rmk7-pxa3

[Mark Salter]

>>>>> Pred  writes:

> Dear ECOS experts,
> I use the redboot exec command to load the linux 2.4.19-rmk7-pxa3 kernel,
> but it seems i can't pass the kernel command line to it. In the
> configuration tool, I've set the base address of kernel tag to 0x100. I put
> some code in the arch/arm/kernel/setup.c to dump memory from 0xC0000100, and
> find that the memory content is set up as expected. But the kernel just
> igore any thing I passed. Could you give me a hand? Thanks in advance.

You probably need to add:

	BOOT_PARAMS(0xa0000100)

to the linux machine description. Using lubbock as an example, it would go
in arch/arm/mach-pxa/lubbock.c between the MACHINE_START and MACHINE_END
macros.

Note that the 0xa0000100 is a physical address.

--Mark



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