Re: PegasosII(ofppc) can't boot

[Frank Wille <frank%phoenix.owl.de@localhost>]

Matt Thomas wrote:

> I've added code to NOP the mfmsr/rldicl/mtmsrd instructions and replace
> the rfid with rfi instructions if the system detects that the 64bit
> bridge is not present.
>
> This allowed a PMPPC kernel to boot with PPC_OEA64_BRIDGE added to the
> config.

Unfortunately it doesn't work for me. It seems like ofppc has an additional
problem.

My Pegasos2 still crashes at the same point as 24h before, while
initializing the console in ofppc_init_comcons(). This is MD code, which is
not present in PMPPC.

The following happens now:

---8<---
NetBSD 6.99.23 (GENERIC) #0: Sat Aug 31 15:43:54 CEST 2013
       
frank%albireo.wendik.de@localhost:/home/frank/netbsd/current/src/objofppc/sys/arch/ofppc/compile/GENERIC
Model: Pegasos2
total memory = 512 MB
avail memory = 481 MB
bootpath: /pci@80000000/ide@C,1/disk@0,0/netbsdcur
mainbus0 (root)
rtas0 at mainbus0: version 1, entry @pa 0x6c8000
cpu0 at mainbus0: 750 (Revision 3.1), ID 0 (primary)
cpu0: HID0 0x8050c0ac<EMCP,NAP,DPM,ICE,DCE,SGE,BTIC,ABE,BHT>, powersave: 1
cpu0: 600.00 MHz, 512KB WB with ECC L2 cache
cpu0: L1 I-cache 32 KB 32B/line, D-cache 32 KB 32B/line
cpu0: L2 cache 128 KB 32B/line
gt0 at mainbus0trap: pid 0.1 (system): kernel PGM trap @ 0x3c4
(SRR1=0x81000)
Press a key to panic.
panic: trap
Stopped in pid 0.1 (system) at  netbsd:cpu_Debugger+0x10:       lwz     r0,
0x14
(r1)
db> bt
0x0061c810: at db_panic+0xe8
0x0061c830: at vpanic+0x13c
0x0061c860: at panic+0x4c
0x0061c8a0: at trap+0x120
0x0061c930: kernel PGM trap by 0x3c4: srr1=0x81000
            r1=0x6c7ca0 cr=0x24002042 xer=0 ctr=0x1018a0
0x006c7ca0: at ofppc_init_comcons+0x1a0
0x006c7d20: at gt_attach+0x2d8
0x006c7d70: at config_attach_loc+0x1fc
0x006c7da0: at mainbus_attach+0x250
0x006c7e80: at config_attach_loc+0x1fc
0x006c7eb0: at cpu_configure+0x20
0x006c7ec0: at main+0x248
0x006c7f10: at 0x1000d0
---8<---

ofppc_init_comcons+0x1a0 is the call to bus_space_map() with
&genppc_isa_io_space_tag, in ofppc/machdep.c line 328. This tag is set to
the Marvell's gtpci_io_bs_tag (ofppc/pci/gt_mainbus.c). There seems to be
something wrong with it.

-- 
Frank Wille