I found in the code that the driver supports another option than the one tha
was suggested by Ixxat to me for module loading :
type=04ISA instead of old use of type=03ISA, I don't really know if it
change something else than printed messages but you have to know I changed
this (and waiting for an Ixxat confirmation of this).
Here is the piece of code doing ioremap (hope I won't broke a license, it's
quite minimal) :
> Dev->DPRAM.VirtAddr =
> (unsigned long) ioremap (Dev->DPRAM.PhysAddr, Dev->DPRAM.Size);
>
> PRINTD ("DPRAM requested at 0x%lx size %d and remapped to 0x%lx\n",
> Dev->DPRAM.PhysAddr, Dev->DPRAM.Size, Dev->DPRAM.VirtAddr);
>
I activated Debug messages in dmesg so I have :
[ 2871.507705] KDEB: DPRAM requested at 0xd0000 size 4096 and remapped to
0xc00d0000
[ 2871.480450] can: controller area network core (rev 20090105 abi 8)
[ 2871.480525] NET: Registered protocol family 29
[ 2871.487568] can: raw protocol (rev 20090105)
[ 2871.496096] can: broadcast manager protocol (rev 20090105 t)
[ 2871.502655] sja1000 CAN netdevice driver
[ 2871.507657] KINF: CAN PC-I driver v4.1b for BCI v4.5.8 Compiled Nov 29
2010 at 22:46:27
[ 2871.507690] KDEB: Device : type [04ISA], addr 0xd000
[ 2871.507696] KDEB: Device name is [PCI-I04 ISA Passive PC/CAN Interface]
[ 2871.507705] KDEB: DPRAM requested at 0xd0000 size 4096 and remapped to
0xc00d0000
[ 2871.507795] KDEB: Port 0 found. Ptr 0xc00d0000 with ret 0
[ 2871.507799] KDEB: Release port 0
[ 2871.507887] KDEB: Port 1 found. Ptr 0xc00d0200 with ret 0
[ 2871.507891] KDEB: Release port 1
[ 2871.507899] KINF: Device registered successfully for 2 ports. Major [250]
[ 2871.507905] KDEB: Allocate
[ 2871.508131] KDEB: Free
[ 2871.508164] KINF: IRQ number [5] registered
[ 2871.508170] KDEB: Allocate
[ 2871.508370] KDEB: Free
[ 2871.508381] KINF: IRQ will be not registered for port 1
2010/11/29 Wolfgang Grandegger <[email protected]>
> On 11/29/2010 10:00 PM, Willy Lambert wrote:
> > My docs says :
> > _ basis adress (0xD0000 for me) + 0x0000 to 0x00FF : CAN-Controller 1
> > _ basis adress + 0x0100 to 0x01FF : Reset CAN1
> > _ basis adress + 0x0200 to 0x02FF : CAN-Controller 2
> > _ basis adress + 0x0300 to 0x03FF : Reset CAN2
> > So I there is still a stange difference between one controller range and
> the
> > 0x20 byte register of SJA1000. Maybe the only problem interfacing my
> board
> > with socket can is here...
>
> Well, it just says that the Reset-Region starts at offset 0x200. Does
> the IXXAT driver touch that region? If yes, where? And how are the
> registers accessed?
>
> > They told me explicitly to use only one IRQ for both controllers :
> >
> >> me > I can't write irq=5,7 as stated in the docs
> >> ixxat > Please use the same IRQ for both CAN controllers.
>
> OK, then irq=5,5 should just work fine.
>
> > But anyway, at the moment making just one working is enougth. I will
> setup
> > the second one when I'll have something working.
> >
> > I'll do my best to instrument this code and give you the result
>
> Good luck.
>
> Wolfgang.
>
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