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RE: [microblaze-uclinux] RE: uclinux port to Multimedia board
Hi Aurash,
Thanks for taking a glance at my code. As you mentioned, I don't think the
cache is the problem. Unless, my removing the cache somehow introduced a
problem. As a temporary measure, I tried putting the cache in and found the
same problem.
I'm wondering if by using ZBT memory, I have somehow lost the interrupt
vector or the timer ISR.
Hmm. I guess tomorrow, I'll start hacking apart the interrupt and timer
code (irq.*, microblaze_timer.*, etc) and see what I can dig up.
Thanks,
Chris
> -----Original Message-----
> From: owner-microblaze-uclinux@itee.uq.edu.au [mailto:owner-microblaze-
> uclinux@itee.uq.edu.au] On Behalf Of aurash
> Sent: October 23, 2004 4:08 AM
> To: microblaze-uclinux@itee.uq.edu.au
> Subject: Re: [microblaze-uclinux] RE: uclinux port to Multimedia board
>
> Chris,
>
> my math seems to be wrong on saturday morning
> log2(16K) =14 so your cache size is CORRECT
> Sorry for the confusion
> Aurash
>
>
> Christopher John Comis wrote:
>
> >Hi,
> >
> >The system.mhs is attached.
> >
> >Thanks,
> >Chris
> >
> >
> >
> >
> >>-----Original Message-----
> >>From: owner-microblaze-uclinux@itee.uq.edu.au [mailto:owner-microblaze-
> >>uclinux@itee.uq.edu.au] On Behalf Of aurash
> >>Sent: October 22, 2004 1:47 PM
> >>To: microblaze-uclinux@itee.uq.edu.au
> >>Subject: Re: [microblaze-uclinux] RE: uclinux port to Multimedia board
> >>
> >>Chris,
> >>
> >>Please post the MHS file so we ca take a look.
> >>very likely is something to do with the interrupts or timer
> >>Aurash
> >>
> >>Christopher John Comis wrote:
> >>
> >>
> >>
> >>>Small correction:
> >>>
> >>>My first bank of memory ranges as follows:
> >>>PARAMETER C_MEM0_BASEADDR = 0xFFE00000
> >>>PARAMETER C_MEM0_HIGHADDR = 0xFFEFFFFF
> >>>
> >>>Chris
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>>-----Original Message-----
> >>>>From: Christopher John Comis [mailto:comis@eecg.toronto.edu]
> >>>>Sent: October 22, 2004 11:52 AM
> >>>>To: 'microblaze-uclinux@itee.uq.edu.au'
> >>>>Subject: uclinux port to Multimedia board
> >>>>
> >>>>
> >>>>Hi,
> >>>>
> >>>>I am wondering if any of you could please help me out. I am trying to
> >>>>port to the Xilinx Multimedia board. I made several modifications to
> >>>>accommodate the mbvanilla platform to my board:
> >>>>- I removed the DDR
> >>>>- I removed cache from the microblaze (which used the DDR memory)
> >>>>- I replaced the sram_flash emc with an emc for my ZBT RAM. I then
> set
> >>>>the base addresses as follows:
> >>>>- I set 1MB of my ZBT RAM to base address 0xFE000000-0xFEFFFFFF
> >>>>- I set 8MB of my ZBT RAM to base address 0xFF000000-0xFF7FFFFF (note
> >>>>
> >>>>
> >>that
> >>
> >>
> >>>>this memory is actually divided across 4x2MB banks)
> >>>>- I modified the DCM clocking mechanism (first DCM is for the opb,
> >>>>
> >>>>
> >>second
> >>
> >>
> >>>>DCM is for the onboard ZBT memory)
> >>>>
> >>>>I can download the platform, launch mdm and ran a memory test that
> >>>>verifies the memory is instantiated correctly.
> >>>>
> >>>>I made the following modifications to the uclinux platform:
> >>>>- I adjusted mbvanilla.h as follows:
> >>>>#define ERAM_ADDR 0xFFE00000
> >>>>#define ERAM_SIZE 0x00100000
> >>>>- I adjusted the address space of mbvanilla.ld as follows:
> >>>>OPB : ORIGIN = 0xFFE00000, LENGTH = 0x00100000
> >>>>- I verified that the following options were set in config.linux-2.4.x
> >>>># CONFIG_MICROBLAZE_ICACHE is not set
> >>>># CONFIG_MICROBLAZE_DCACHE is not set
> >>>>
> >>>>When I launch mdm, download and run image.elf, things are smooth until
> >>>>
> >>>>
> >>the
> >>
> >>
> >>>>line:
> >>>>Calibrating delay loop...
> >>>>At which point the program freezes.
> >>>>
> >>>>Reading previous posts, my intc interrupt port is set as follows:
> >>>>PORT Intr = Ethernet_MAC_IP2INTC_Irpt & debug_uart_interrupt &
> >>>>console_uart_interrupt & timer_interrupt
> >>>>(note that my dummy debug uart is connected to a LED for output and a
> >>>>switch for input)
> >>>>I also modified the config.linux-2.4.x under both cases:
> >>>>CONFIG_MICROBLAZE_HARD_MULT=y
> >>>>CONFIG_MICROBLAZE_HARD_MULT=n
> >>>>
> >>>>Am I missing something? Can someone (anyone??) please help me out?
> >>>>Thanks
> >>>>Chris
> >>>>
> >>>>
> >>>>
> >>>>
> >>>___________________________
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> >>>microblaze-uclinux@itee.uq.edu.au
> >>>Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
> >>>Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-
> >>>
> >>>
> >>uclinux/
> >>
> >>
> >>>
> >>>
> >>>
> >>>
> >>___________________________
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> >>microblaze-uclinux@itee.uq.edu.au
> >>Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
> >>Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-
> >>uclinux/
> >>
> >>
> >
> >
> >
>
>
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