Hi! all,


The PCI_NETBSD_CONFIGURE doesn't operate correctly in our alchemy-boards. 
Devices that the map is done fails in the first PCI memory space without
fail.  It is because register AUPCI_MBAR is 0x00000008.  (see description
of pci_mbar in 'AMD Alchemy Au1550 Processor Data Book')

e.g. (YAMON on Open Micro Server)
---------------------------------
  YAMON> dump b4005110 10

  B4005110: 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
           ^^^^

This value will set mstart to 0x20000008.  And, au_himem_space_init() will
be called.

However, macro PCI_MAPREG_MEM_ADDR() of pciconf.c::setup_memwins() is
allocated masking 0xfffffff0.  In a word, it allocates 0x20000000 in wm0
on OMSAL400.

  wm0 at pci0 dev 3 function 0: Intel i82541GI 1000BASE-T Ethernet, rev. 5

  ... snip ...

    Type 0 ("normal" device) header:
      0x10: 0x20000000 0x00000000 0x01000001 0x00000000
      0x20: 0x00000000 0x00000000 0x00000000 0x10768086
      0x30: 0x00000000 0x000000dc 0x00000000 0x00ff0100
      
      Base address register at 0x10
        type: 32-bit nonprefetchable memory
        base: 0x20000000, size: 0x00020000
  
  ... snip ...

  wm0: unable to map device registers



Are it necessary that we do the mask with PCI_MAPREG_MEM_ADDR()?
Or, any ideas?


Index: aupci.c
===================================================================
RCS file: /cvsroot/src/sys/arch/mips/alchemy/dev/aupci.c,v
retrieving revision 1.3
diff -u -r1.3 aupci.c
--- aupci.c     16 Feb 2006 01:55:17 -0000      1.3
+++ aupci.c     26 Feb 2006 17:30:14 -0000
@@ -232,7 +232,7 @@
        sz = 1 + ~mask;
 
        mbar = bus_space_read_4(sc->sc_bust, sc->sc_bush, AUPCI_MBAR);
-       mstart = mbar + sz;
+       mstart = PCI_MAPREG_MEM_ADDR(mbar + sz);
        mend = 0xffffffff - mstart;
 
        sc->sc_memt = &sc->sc_mem_space;

Thanks,
--
kiyohara