SystemAce Driver.

[a sudheer]

Hi Ameet,

Today I tried the System ACE driver in interrupt mode.
The driver is connected to the processor through IRQ4 .

So, in xparameter_ml300.h , I have changed the

#define XPAR_OPB_INTC_0_SYSACE_COMPACTFLASH_SYSACE_IRQ_INTR 4

Also, in "xsysace_init",  if I have xsa_device.gd = alloc_disk(16); , then
the kernel hangs.
So I have assigned alloc_disk(1), in which case the kernel boots-up fine.

But when I issue 'fdisk / mount ', it goes through - ' XSysAce_SectorRead'
which is being called from "xsysace_do_request".
And at the nd of the function it hangs. I couldn't trace exactly where it
hangs.

Could you please suggest some pointers to debug on this issue?

This is very critical for us and I am held up with this issue for the last 1
week.

Thanks so much for all your help.

Thanks
Sudheer



On 9/8/06, Ameet Patil <ammubhai at gmail.com> wrote:
>
> Hi Sudheer,
>     Ah! I never did the test for polled mode. There might be issue with
> that. Will have a look....
>
> -Ameet
>
> sudheer wrote:
> > Hi Ameet Patil
> >
> > Ameet Patil wrote:
> >> Hi Sudheer,
> >>    Frank has already answered your questions. If you have any problems
> >> with the SysAce patch... do let me know. I have written a small
> >> tutorial here if it helps...
> > I have used your SystemAce patch with linux-2.6.16-2. The kernel gets
> > loaded with the ace module and is fine.
> > I want the driver in polling mode. So i have commented few lines related
> > to interrupt in the adapter.c file- xsysace_init function.
> >
> > When i give the fdisk command, it gives few errors and then enters to
> > the  fdisk commad promt. It prints the partitions, etc.
> >
> > But when  i try to quit from the fdisk, it hangs. I am not able to
> > complete the request properly (i guess in xsa_thread function in
> > adapter.c file)
> >
> > The dump is as follows:
> > SystemACE: Error 1 when reading sector 60.
> > end_request: I/O error, dev xsa, sector 56
> > SystemACE: Error 1351 when reading sector 62.
> > end_request: I/O error, dev xsa, sector 56
> >
> > Command (m for help): p
> >
> > Disk /dev/xsysace: 512 MB, 512483328 bytes
> > 16 heads, 62 sectors/track, 1009 cylinders
> > Units = cylinders of 992 * 512 = 507904 bytes
> > Device Boot Start End Blocks Id System
> > /dev/xsysace1 1 1009 500433 6 FAT16
> >
> > Command (m for help): q
> > -------
> > The fdisk enters into xsysace_ioctl function but no commands are
> > implemented in the ioctl function and returns an error.
> >
> > Please help me in this issue and let me know if any other details
> required.
> >
> > Thanks
> > Sudheer
> >
> >>
> >> http://linux.get2knowmore.com
> >>
> >>
> >> -Ameet
> >>
> >> sudheer wrote:
> >>> Hello Ameet Patil
> >>>
> >>> I am looking for linux kernel source 2.6.16 with system ace
> >>> controller support. I downloaded the linux-2.6.16 and linux-2.6.17-1
> >>> source from kernel.org but could not find any files related to system
> >>> ace controller  ( No xilinx_sysace directory in  drivers/block/) .  I
> >>> have checked penguinppc.org also but could not get it.
> >>>
> >>> Can you please send to me the link where i could download the
> >>> linuxppc-2.6.16 source with system ace support.
> >>>
> >>> Thanks & Regards
> >>> Sudheer
> >>>
> >>> Ameet Patil wrote:
> >>>> Hi Raja,
> >>>>     I have ported the Xilinx System ACE driver to 2.6 kernel. Find
> >>>> the latest one here:
> >>>>
> http://www.cs.york.ac.uk/rtslab/demos/amos/xupv2pro/patches/linuxppc-2.6.17.1-sysace-1.2.patch
> >>>>
> >>>>
> >>>> NOTE: this patch wouldn't work if you are using the TEMAC driver. In
> >>>> which case use the -after-TEMAC patch found in the patches folder
> >>>> above.
> >>>>
> >>>> Check the following discussions (threads) for more details:
> >>>> 1. "Xilinx SystemACE driver for 2.6"
> >>>> 2. "Xilinx BSP for linux 2.6"
> >>>> 3. "Kernel hangs after "Now booting the kernel"."
> >>>>
> >>>> cheers,
> >>>> -Ameet
> >>>>
> >>>> Raja Chidambaram wrote:
> >>>>
> >>>>>  Hi all,
> >>>>>  We are working on customized board with amcc 440SPe
> >>>>> processor & xilinx System Ace controller. The System
> >>>>> Ace controller is connected to compact flash driver.
> >>>>>
> >>>>> We use u-boot 1.2 as bootloader & linux kernel
> >>>>> 2.6.16-2.
> >>>>>
> >>>>> On the process the u-boot is able to detect compact
> >>>>> flash through Xilinx SystemAce controller & able to
> >>>>> load the kernel image into compact flash.But when the
> >>>>> linux boot's up it not able to detect the System Ace
> >>>>> controller or compact flash.
> >>>>>
> >>>>> Note:we need to have the root file system in compact
> >>>>> flash.
> >>>>>
> >>>>> Is their any drivers available for SystemAce
> >>>>> controller on linux 2.6,if their how to get it.please
> >>>>> help me in this
> >>>>>                                     with regards
> >>>>>                                      raja
> >>>>>
> >>>>>
> >>>>>
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> >>>
> >>
> >
>
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