Dne Út 1. června 2010 07:44:18 balakrishnan napsal(a):
> I am working on pxa300 based development board and using Linux 2.6.34.
> This Linux kernel already has support for following boards
> 1. zylonite_pxa300
> 2. cm-x300
> 3. colibri-pxa300
> 4. littleton
>
> My doubt is that pxa300 based boards are using "0xa0000000" as DDRAM
> base and PHYS_OFFSET is also defined in
> "arch/arm/mach-pxa/include/mach/memory.h" as 0xa0000000.
> But in our board DDR is mapped in 0x80000000. Does it make any
> problem?. Because after mmu is turned ON, my board is hanging.
>
> "zreladdr-y := 0x80008000" is defined in
> "arch/arm/mach-pxa/Makefile.boot" file .
> my machine_desc is as follows
> .phys_io = 0x40000000,
> .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
> .boot_params = 0x80000100,
>
Try editing both arch/arm/mach-pxa/Makefile.boot and
arch/arm/mach/pxa/include/mach/memory.h
> With Thanks
> J.Balakrishnan
The 0x80000000 should be aliased to 0xa0000000, but looking into the PXA docs,
it is only on pxa320. Eric, any ideas on this ?
On Sun, Jun 6, 2010 at 1:19 AM, Marek Vasut <[email protected]> wrote:
> Dne Út 1. června 2010 07:44:18 balakrishnan napsal(a):
>> I am working on pxa300 based development board and using Linux 2.6.34.
>> This Linux kernel already has support for following boards
>> 1. zylonite_pxa300
>> 2. cm-x300
>> 3. colibri-pxa300
>> 4. littleton
>>
>> My doubt is that pxa300 based boards are using "0xa0000000" as DDRAM
>> base and PHYS_OFFSET is also defined in
>> "arch/arm/mach-pxa/include/mach/memory.h" as 0xa0000000.
>> But in our board DDR is mapped in 0x80000000. Does it make any
>> problem?. Because after mmu is turned ON, my board is hanging.
>>
>> "zreladdr-y := 0x80008000" is defined in
>> "arch/arm/mach-pxa/Makefile.boot" file .
>> my machine_desc is as follows
>> .phys_io = 0x40000000,
>> .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
>> .boot_params = 0x80000100,
>>
>
> Try editing both arch/arm/mach-pxa/Makefile.boot and
> arch/arm/mach/pxa/include/mach/memory.h
>
>> With Thanks
>> J.Balakrishnan
>
> The 0x80000000 should be aliased to 0xa0000000, but looking into the PXA docs,
> it is only on pxa320. Eric, any ideas on this ?
>
Should be working on pxa300/310 as well. If it doesn't, check you bootloader
to make sure the mapping is OK, and memory doesn't exceed
(0xa000_0000 - 0x8000_0000).
Dne Ne 6. června 2010 10:17:00 Eric Miao napsal(a):
> On Sun, Jun 6, 2010 at 1:19 AM, Marek Vasut <[email protected]> wrote:
> > Dne Út 1. června 2010 07:44:18 balakrishnan napsal(a):
> >> I am working on pxa300 based development board and using Linux 2.6.34.
> >> This Linux kernel already has support for following boards
> >> 1. zylonite_pxa300
> >> 2. cm-x300
> >> 3. colibri-pxa300
> >> 4. littleton
> >>
> >> My doubt is that pxa300 based boards are using "0xa0000000" as DDRAM
> >> base and PHYS_OFFSET is also defined in
> >> "arch/arm/mach-pxa/include/mach/memory.h" as 0xa0000000.
> >> But in our board DDR is mapped in 0x80000000. Does it make any
> >> problem?. Because after mmu is turned ON, my board is hanging.
> >>
> >> "zreladdr-y := 0x80008000" is defined in
> >> "arch/arm/mach-pxa/Makefile.boot" file .
> >> my machine_desc is as follows
> >> .phys_io = 0x40000000,
> >> .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
> >> .boot_params = 0x80000100,
> >
> > Try editing both arch/arm/mach-pxa/Makefile.boot and
> > arch/arm/mach/pxa/include/mach/memory.h
> >
> >> With Thanks
> >> J.Balakrishnan
> >
> > The 0x80000000 should be aliased to 0xa0000000, but looking into the PXA
> > docs, it is only on pxa320. Eric, any ideas on this ?
>
> Should be working on pxa300/310 as well. If it doesn't, check you
> bootloader to make sure the mapping is OK, and memory doesn't exceed
> (0xa000_0000 - 0x8000_0000).
It worked last time I used the pxa310 littleton board, but I can't check on the
pxa300 zylonite board just yet.
Could you give us your bootloader details ?
On Sun, Jun 6, 2010 at 11:17 AM, Eric Miao <[email protected]> wrote:
> On Sun, Jun 6, 2010 at 1:19 AM, Marek Vasut <[email protected]> wrote:
>> Dne Út 1. června 2010 07:44:18 balakrishnan napsal(a):
>>> I am working on pxa300 based development board and using Linux 2.6.34.
>>> This Linux kernel already has support for following boards
>>> 1. zylonite_pxa300
>>> 2. cm-x300
>>> 3. colibri-pxa300
>>> 4. littleton
>>>
>>> My doubt is that pxa300 based boards are using "0xa0000000" as DDRAM
>>> base and PHYS_OFFSET is also defined in
>>> "arch/arm/mach-pxa/include/mach/memory.h" as 0xa0000000.
>>> But in our board DDR is mapped in 0x80000000. Does it make any
>>> problem?. Because after mmu is turned ON, my board is hanging.
>>>
>>> "zreladdr-y := 0x80008000" is defined in
>>> "arch/arm/mach-pxa/Makefile.boot" file .
>>> my machine_desc is as follows
>>> .phys_io = 0x40000000,
>>> .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
>>> .boot_params = 0x80000100,
>>>
>>
>> Try editing both arch/arm/mach-pxa/Makefile.boot and
>> arch/arm/mach/pxa/include/mach/memory.h
>>
>>> With Thanks
>>> J.Balakrishnan
>>
>> The 0x80000000 should be aliased to 0xa0000000, but looking into the PXA docs,
>> it is only on pxa320. Eric, any ideas on this ?
>>
>
> Should be working on pxa300/310 as well. If it doesn't, check you bootloader
> to make sure the mapping is OK, and memory doesn't exceed
> (0xa000_0000 - 0x8000_0000).
works on CM-X300 with both pxa300 and pxa310
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Sincerely Yours,
Mike.