On Tue, Sep 29, 2009 at 02:05:14AM +0000, Tom Judge wrote:
> Olivier Houchard wrote:
> >On Mon, Sep 28, 2009 at 06:55:38PM +0000, Tom Judge wrote:
> >
> >>Hi,
> >>
> >>I am working on getting FreeBSD to boot on a new ARM based board, and am
> >>hitting this issue any time I load a driver for the PCI based devices on
> >>the board.
> >>
> >>My current code can be found here:
> >>
> >>http://www.tomjudge.com/tmp/em7210.patch
> >>
> >>
> >
> >Hi Tom,
> >
> >My guess is, you should include std.i80219 instead of std.i80321 in
> >std.em7210.
> >If you do not, CPU_XSCALE_80219 won't be defined, and the 80321 code to
> >check if the board is host or not will be used, and will wrongly assume
> >it is not, and thus won't map the PCI mem correctly.
> >
> >
> Hi Olivier,
>
> I have switched out the std file and am now using std.i80219 but am
> still having issues.
>
> I think the problems are the pci memory mappings in the controller devices.
>
> On linux em0 gets mapped as follows:
>
> cd 0000\:00\:01.0/
> # ls
> class device local_cpus subsystem_device
> config driver resource subsystem_vendor
> detach_state irq rom vendor
> # cat resource
> 0x0000000080000000 0x000000008001ffff 0x0000000000000200
> 0x0000000080020000 0x000000008003ffff 0x0000000000000200
> 0x00000000fe000000 0x00000000fe00003f 0x0000000000000101
> 0x0000000000000000 0x0000000000000000 0x0000000000000000
> 0x0000000000000000 0x0000000000000000 0x0000000000000000
> 0x0000000000000000 0x0000000000000000 0x0000000000000000
> 0x0000000080040000 0x000000008005ffff 0x0000000000007200
> #
>
>
>
> Where as on FreeBSD I am seeing this:
> em0: <Intel(R) PRO/1000 Network Connection 6.9.14> port
> 0xfe400000-0xfe40003f mem 0-0x1ffff,0x20000-0x3ffff irq 29 at device 1.0
> on pci0
>
> Seems that I am missing the 0x800 off the front of the PCI memory mappings.
>
Ok I'm a bit confused about this code, it's been too long since I haven't
read it :)
Could you try the attached patch ?
Thanks !
If it doesn't help, you can print adapter->osdep.mem_bus_space_handle in
if_em.c to make sure it is the same as in linux.
Regards,
Olivier
Index: arm/xscale/i80321/i80321_pci.c
===================================================================
--- arm/xscale/i80321/i80321_pci.c (revision 196158)
+++ arm/xscale/i80321/i80321_pci.c (working copy)
@@ -92,8 +92,7 @@
sc->sc_busno = busno;
sc->sc_pciio = &i80321_softc->sc_pci_iot;
sc->sc_pcimem = &i80321_softc->sc_pci_memt;
- sc->sc_mem = i80321_softc->sc_owin[0].owin_xlate_lo +
- VERDE_OUT_XLATE_MEM_WIN_SIZE;
+ sc->sc_mem = i80321_softc->sc_owin[0].owin_xlate_lo;
sc->sc_io = i80321_softc->sc_iow_vaddr;
/* Initialize memory and i/o rmans. */
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