* [Qemu-devel] OS/2 PPC booting making some progress
@ 2005-05-21 8:25 Tero Kaarlela
2005-05-21 10:02 ` [Qemu-devel] OS/2 PPC booting making some progress(sorry this has correct entry point :) Tero Kaarlela
2005-05-21 11:57 ` [Qemu-devel] OS/2 PPC booting making some progress J. Mayer
0 siblings, 2 replies; 6+ messages in thread
From: Tero Kaarlela @ 2005-05-21 8:25 UTC (permalink / raw)
To: qemu-devel
2. Booted with qemu-system-ppc -dummy-net -nographic -prep -cdrom os2.iso
(and giving boot device ide_cdrom2 + filesystem FAT_HARDDISK)
Boot: 00ec0500 47ff0800 00000000 00000000
Bootinfos at : 200000
Now boot it... (0)
stack: 5bfff70 malloc_base: 0 0x05800000 0x06000000
PREP boot... 15ea00 100000
inb: port=0x0010
ERROR: unaffected IO port: 0814 read
Entering Little Endian mode...
outb: port=0x0280 data=0xc0
IBM Microkernel Bootloader (Power PC, Little Endian)
Press ENTER for manual boot...........
pci_config_read: PREP PCI Bridge: addr=10 val=c0000000 len=4
dma: read_chan 0x4 -> 0
dma: read_chan 0x4 -> 28672
dma: read_chan 0x4 -> 14336
dma: read_chan 0x4 -> 14336
dma: write_cont: nport 0x0008, ichan 0, val 000000
dma: write_cont: nport 0x00d0, ichan 0, val 000000
Unknown device: automatic
[PN_BOOT_DEV="automatic"] ide_cdrom2
ide: read addr=0x177 val=40
IDE: write addr=0x176 val=0xa0
IDE: write addr=0x177 val=0xa1
ide: CMD=a1
ide: read addr=0x177 val=48
dma: read_chan 0x4 -> 14336
dma: read_chan 0x4 -> 14336
ide: write control addr=0x376 val=08
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x177 val=40
ide: read addr=0x177 val=40
IDE: write addr=0x171 val=0x00
IDE: write addr=0x174 val=0x00
IDE: write addr=0x175 val=0x08
IDE: write addr=0x176 val=0xa0
IDE: write addr=0x177 val=0xa0
ide: CMD=a0
ide: read addr=0x177 val=48
ide: read addr=0x172 val=01
ide: read addr=0x177 val=48
ATAPI limit=0x800 packet: 00 00 00 00 00 00 00 00 00 00 00 00
ERROR: unaffected IO port: 0838 read
ide: read addr=0x177 val=40
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x172 val=03
[PN_BOOT_FS="automatic"] FAT_HARDDISK
ide: read addr=0x177 val=40
ide: read addr=0x177 val=40
IDE: write addr=0x171 val=0x00
IDE: write addr=0x174 val=0x00
IDE: write addr=0x175 val=0x08
IDE: write addr=0x176 val=0xa0
IDE: write addr=0x177 val=0xa0
ide: CMD=a0
ide: read addr=0x177 val=48
ide: read addr=0x172 val=01
ide: read addr=0x177 val=48
ATAPI limit=0x800 packet: 28 00 00 00 00 00 00 00 01 00 00 00
read: LBA=0 nb_sectors=1
reply: tx_size=2048 elem_tx_size=0 index=2048
byte_count_limit=2048
status=0x48
ERROR: unaffected IO port: 0838 read
ide: read addr=0x177 val=48
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x172 val=02
ide: read addr=0x174 val=00
ide: read addr=0x175 val=08
reply: tx_size=0 elem_tx_size=0 index=2048
status=0x40
ERROR: unaffected IO port: 0838 read
ide: read addr=0x177 val=40
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x172 val=03
we did NOT read the MBR!
Bootloader: *** Reserved Exception (0x0) ***
srr0 = 0x15f068
srr1 = 0x2031
dsisr= 0x0
dar = 0x0
Bootloader: Entering infinite loop.
2. Booted with qemu-system-ppc -dummy-net -nographic -prep -cdrom os2.iso
(and giving boot device ide_cdrom2 + filesystem FAT_HARDDISK)
Boot: 00ec0500 47ff0800 00000000 00000000
Bootinfos at : 200000
Now boot it... (0)
stack: 5bfff70 malloc_base: 0 0x05800000 0x06000000
PREP boot... 15ea00 100000
inb: port=0x0010
ERROR: unaffected IO port: 0814 read
Entering Little Endian mode...
outb: port=0x0280 data=0xc0
IBM Microkernel Bootloader (Power PC, Little Endian)
Press ENTER for manual boot...........
pci_config_read: PREP PCI Bridge: addr=10 val=c0000000 len=4
dma: read_chan 0x4 -> 0
dma: read_chan 0x4 -> 28672
dma: read_chan 0x4 -> 14336
dma: read_chan 0x4 -> 14336
dma: write_cont: nport 0x0008, ichan 0, val 000000
dma: write_cont: nport 0x00d0, ichan 0, val 000000
Unknown device: automatic
[PN_BOOT_DEV="automatic"] ide_cdrom2
ide: read addr=0x177 val=40
IDE: write addr=0x176 val=0xa0
IDE: write addr=0x177 val=0xa1
ide: CMD=a1
ide: read addr=0x177 val=48
dma: read_chan 0x4 -> 14336
dma: read_chan 0x4 -> 14336
ide: write control addr=0x376 val=08
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x177 val=40
ide: read addr=0x177 val=40
IDE: write addr=0x171 val=0x00
IDE: write addr=0x174 val=0x00
IDE: write addr=0x175 val=0x08
IDE: write addr=0x176 val=0xa0
IDE: write addr=0x177 val=0xa0
ide: CMD=a0
ide: read addr=0x177 val=48
ide: read addr=0x172 val=01
ide: read addr=0x177 val=48
ATAPI limit=0x800 packet: 00 00 00 00 00 00 00 00 00 00 00 00
ERROR: unaffected IO port: 0838 read
ide: read addr=0x177 val=40
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x172 val=03
[PN_BOOT_FS="automatic"] FAT_HARDDISK
ide: read addr=0x177 val=40
ide: read addr=0x177 val=40
IDE: write addr=0x171 val=0x00
IDE: write addr=0x174 val=0x00
IDE: write addr=0x175 val=0x08
IDE: write addr=0x176 val=0xa0
IDE: write addr=0x177 val=0xa0
ide: CMD=a0
ide: read addr=0x177 val=48
ide: read addr=0x172 val=01
ide: read addr=0x177 val=48
ATAPI limit=0x800 packet: 28 00 00 00 00 00 00 00 01 00 00 00
read: LBA=0 nb_sectors=1
reply: tx_size=2048 elem_tx_size=0 index=2048
byte_count_limit=2048
status=0x48
ERROR: unaffected IO port: 0838 read
ide: read addr=0x177 val=48
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x172 val=02
ide: read addr=0x174 val=00
ide: read addr=0x175 val=08
reply: tx_size=0 elem_tx_size=0 index=2048
status=0x40
ERROR: unaffected IO port: 0838 read
ide: read addr=0x177 val=40
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x172 val=03
we did NOT read the MBR!
Bootloader: *** Reserved Exception (0x0) ***
srr0 = 0x15f068
srr1 = 0x2031
dsisr= 0x0
dar = 0x0
Bootloader: Entering infinite loop.
Hi,
I have made some modifications to PPC PREP booting to get OS/2
bootloader working. Now I hopefully have made some progress (it isn't
working yet but has gone forward on my opinion). So I have few questions
at the moment:
1. on debug 1. Is the opcode really invalid or just unsupported one?
2. on debug 2. What is this unaffected IO port 838 it tries to read &
write ?
3. Might that unsupported ioport prevent booting?
1. Booted with qemu-system-ppc -dummy-net -nographic -prep -cdrom os2.iso
(and giving boot device ide_cdrom0)
Boot: 00ec0500 47ff0800 00000000 00000000
Bootinfos at : 200000
Now boot it... (0)
stack: 5bfff70 malloc_base: 0 0x05800000 0x06000000
PREP boot... 15ea00 100000
inb: port=0x0010
ERROR: unaffected IO port: 0814 read
Entering Little Endian mode...
outb: port=0x0280 data=0xc0
IBM Microkernel Bootloader (Power PC, Little Endian)
Press ENTER for manual boot...........
[PN_BOOT_DEV="automatic"] ide_cdrom0 (gave this device manually)
ide: read addr=0x1f7 val=00
IDE: write addr=0x1f6 val=0xa0
IDE: write addr=0x1f7 val=0xa1
ide: CMD=a1
ide: read addr=0x1f7 val=00
Device initialization failed
invalid/unsupported opcode: 02 - 04 - 01 (08000048) 0x00000300 0
invalid/unsupported opcode: 02 - 04 - 01 (08000048) 0x00000700 0
Crashed!!
2. This works better(because ide_cdrom is actully there)
2. Booted with qemu-system-ppc -dummy-net -nographic -prep -cdrom os2.iso
(and giving boot device ide_cdrom2 + filesystem FAT_HARDDISK)
Boot: 00ec0500 47ff0800 00000000 00000000
Bootinfos at : 200000
Now boot it... (0)
stack: 5bfff70 malloc_base: 0 0x05800000 0x06000000
PREP boot... 15ea00 100000
inb: port=0x0010
ERROR: unaffected IO port: 0814 read
Entering Little Endian mode...
outb: port=0x0280 data=0xc0
IBM Microkernel Bootloader (Power PC, Little Endian)
Press ENTER for manual boot...........
[PN_BOOT_DEV="automatic"] ide_cdrom2 (gave this manually)
ide: read addr=0x177 val=40
IDE: write addr=0x176 val=0xa0
IDE: write addr=0x177 val=0xa1
ide: CMD=a1
ide: read addr=0x177 val=48
dma: read_chan 0x4 -> 14336
dma: read_chan 0x4 -> 14336
ide: write control addr=0x376 val=08
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x177 val=40
ide: read addr=0x177 val=40
IDE: write addr=0x171 val=0x00
IDE: write addr=0x174 val=0x00
IDE: write addr=0x175 val=0x08
IDE: write addr=0x176 val=0xa0
IDE: write addr=0x177 val=0xa0
ide: CMD=a0
ide: read addr=0x177 val=48
ide: read addr=0x172 val=01
ide: read addr=0x177 val=48
ATAPI limit=0x800 packet: 00 00 00 00 00 00 00 00 00 00 00 00
ERROR: unaffected IO port: 0838 read
ide: read addr=0x177 val=40
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x172 val=03
[PN_BOOT_FS="automatic"] FAT_HARDDISK (gave this manually but should be
automatically regognized other option is FAT_FLOPPY)
ide: read addr=0x177 val=40
ide: read addr=0x177 val=40
IDE: write addr=0x171 val=0x00
IDE: write addr=0x174 val=0x00
IDE: write addr=0x175 val=0x08
IDE: write addr=0x176 val=0xa0
IDE: write addr=0x177 val=0xa0
ide: CMD=a0
ide: read addr=0x177 val=48
ide: read addr=0x172 val=01
ide: read addr=0x177 val=48
ATAPI limit=0x800 packet: 28 00 00 00 00 00 00 00 01 00 00 00
read: LBA=0 nb_sectors=1
reply: tx_size=2048 elem_tx_size=0 index=2048
byte_count_limit=2048
status=0x48
ERROR: unaffected IO port: 0838 read
ide: read addr=0x177 val=48
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x172 val=02
ide: read addr=0x174 val=00
ide: read addr=0x175 val=08
reply: tx_size=0 elem_tx_size=0 index=2048
status=0x40
ERROR: unaffected IO port: 0838 read
ide: read addr=0x177 val=40
ERROR: unaffected IO port: 0838 read
ERROR: unaffected IO port write: 0838 => fd
ide: read addr=0x172 val=03
we did NOT read the MBR!
Bootloader: *** Reserved Exception (0x0) ***
srr0 = 0x15f068
srr1 = 0x2031
dsisr= 0x0
dar = 0x0
Bootloader: Entering infinite loop.
Tero
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [Qemu-devel] OS/2 PPC booting making some progress(sorry this has correct entry point :)
2005-05-21 8:25 [Qemu-devel] OS/2 PPC booting making some progress Tero Kaarlela
@ 2005-05-21 10:02 ` Tero Kaarlela
2005-05-21 11:57 ` [Qemu-devel] OS/2 PPC booting making some progress J. Mayer
1 sibling, 0 replies; 6+ messages in thread
From: Tero Kaarlela @ 2005-05-21 10:02 UTC (permalink / raw)
To: qemu-devel
>
> Hi,
>
> I have made some modifications to PPC PREP booting to get OS/2
> bootloader working. Now I hopefully have made some progress (it isn't
> working yet but has gone forward on my opinion). So I have few
> questions at the moment:
>
> 1. on debug 1. Is the opcode really invalid or just unsupported one?
> 2. on debug 2. What is this unaffected IO port 838 it tries to read
> & write ?
> 3. Might that unsupported ioport prevent booting?
> 1. Booted with qemu-system-ppc -dummy-net -nographic -prep -cdrom
> os2.iso
> (and giving boot device ide_cdrom0)
>
> Boot: 00ec0500 47ff0800 00000000 00000000
> Bootinfos at : 200000
>
> Now boot it... (0)
>
> stack: 5bfff70 malloc_base: 0 0x05800000 0x06000000
> PREP boot... 15ea00 100000
> inb: port=0x0010
> ERROR: unaffected IO port: 0814 read
> Entering Little Endian mode...
> outb: port=0x0280 data=0xc0
>
> IBM Microkernel Bootloader (Power PC, Little Endian)
> Press ENTER for manual boot...........
> [PN_BOOT_DEV="automatic"] ide_cdrom0 (gave this device manually)
> ide: read addr=0x1f7 val=00
> IDE: write addr=0x1f6 val=0xa0
> IDE: write addr=0x1f7 val=0xa1
> ide: CMD=a1
> ide: read addr=0x1f7 val=00
> Device initialization failed
> invalid/unsupported opcode: 02 - 04 - 01 (08000048) 0x00000300 0
> invalid/unsupported opcode: 02 - 04 - 01 (08000048) 0x00000700 0
>
> Crashed!!
>
> 2. This works better(because ide_cdrom is actully there)
> 2. Booted with qemu-system-ppc -dummy-net -nographic -prep -cdrom os2.iso
> (and giving boot device ide_cdrom2 + filesystem FAT_HARDDISK)
>
> Boot: 00ec0500 47ff0800 00000000 00000000
> Bootinfos at : 200000
>
> Now boot it... (0)
>
> stack: 5bfff70 malloc_base: 0 0x05800000 0x06000000
> PREP boot... 15ea00 100000
> inb: port=0x0010
> ERROR: unaffected IO port: 0814 read
> Entering Little Endian mode...
> outb: port=0x0280 data=0xc0
>
> IBM Microkernel Bootloader (Power PC, Little Endian)
> Press ENTER for manual boot...........
> [PN_BOOT_DEV="automatic"] ide_cdrom2 (gave this manually)
> ide: read addr=0x177 val=40
> IDE: write addr=0x176 val=0xa0
> IDE: write addr=0x177 val=0xa1
> ide: CMD=a1
> ide: read addr=0x177 val=48
> dma: read_chan 0x4 -> 14336
> dma: read_chan 0x4 -> 14336
> ide: write control addr=0x376 val=08
> ERROR: unaffected IO port: 0838 read
> ERROR: unaffected IO port write: 0838 => fd
> ide: read addr=0x177 val=40
> ide: read addr=0x177 val=40
> IDE: write addr=0x171 val=0x00
> IDE: write addr=0x174 val=0x00
> IDE: write addr=0x175 val=0x08
> IDE: write addr=0x176 val=0xa0
> IDE: write addr=0x177 val=0xa0
> ide: CMD=a0
> ide: read addr=0x177 val=48
> ide: read addr=0x172 val=01
> ide: read addr=0x177 val=48
> ATAPI limit=0x800 packet: 00 00 00 00 00 00 00 00 00 00 00 00
> ERROR: unaffected IO port: 0838 read
> ide: read addr=0x177 val=40
> ERROR: unaffected IO port: 0838 read
> ERROR: unaffected IO port write: 0838 => fd
> ide: read addr=0x172 val=03
> [PN_BOOT_FS="automatic"] FAT_HARDDISK (gave this manually but should
> be automatically regognized other option is FAT_FLOPPY)
> ide: read addr=0x177 val=40
> ide: read addr=0x177 val=40
> IDE: write addr=0x171 val=0x00
> IDE: write addr=0x174 val=0x00
> IDE: write addr=0x175 val=0x08
> IDE: write addr=0x176 val=0xa0
> IDE: write addr=0x177 val=0xa0
> ide: CMD=a0
> ide: read addr=0x177 val=48
> ide: read addr=0x172 val=01
> ide: read addr=0x177 val=48
> ATAPI limit=0x800 packet: 28 00 00 00 00 00 00 00 01 00 00 00
> read: LBA=0 nb_sectors=1
> reply: tx_size=2048 elem_tx_size=0 index=2048
> byte_count_limit=2048
> status=0x48
> ERROR: unaffected IO port: 0838 read
> ide: read addr=0x177 val=48
> ERROR: unaffected IO port: 0838 read
> ERROR: unaffected IO port write: 0838 => fd
> ide: read addr=0x172 val=02
> ide: read addr=0x174 val=00
> ide: read addr=0x175 val=08
> reply: tx_size=0 elem_tx_size=0 index=2048
> status=0x40
> ERROR: unaffected IO port: 0838 read
> ide: read addr=0x177 val=40
> ERROR: unaffected IO port: 0838 read
> ERROR: unaffected IO port write: 0838 => fd
> ide: read addr=0x172 val=03
> we did NOT read the MBR!
>
> Bootloader: *** Reserved Exception (0x0) ***
>
> srr0 = 0x15f068
> srr1 = 0x2031
> dsisr= 0x0
> dar = 0x0
>
> Bootloader: Entering infinite loop.
>
> Tero
>
>
>
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] OS/2 PPC booting making some progress
2005-05-21 8:25 [Qemu-devel] OS/2 PPC booting making some progress Tero Kaarlela
2005-05-21 10:02 ` [Qemu-devel] OS/2 PPC booting making some progress(sorry this has correct entry point :) Tero Kaarlela
@ 2005-05-21 11:57 ` J. Mayer
2005-05-22 13:49 ` Tero Kaarlela
1 sibling, 1 reply; 6+ messages in thread
From: J. Mayer @ 2005-05-21 11:57 UTC (permalink / raw)
To: qemu-devel
On Sat, 2005-05-21 at 11:25 +0300, Tero Kaarlela wrote:
[...]
> Hi,
>
> I have made some modifications to PPC PREP booting to get OS/2
> bootloader working. Now I hopefully have made some progress (it isn't
> working yet but has gone forward on my opinion). So I have few questions
> at the moment:
>
> 1. on debug 1. Is the opcode really invalid or just unsupported one?
Yes. The endianness is wrong: if you reverse this opcode, you've got a
valid one.
There may have been a jump to a random place...
> 2. on debug 2. What is this unaffected IO port 838 it tries to read &
> write ?
This port is not documented in the PREP specification. You should check
in the Linux kernel to see if this port seems important. Or you may take
a look to Motorola PowerStack documentation: those boards are well
documented and OS/2 is supposed to know how to boot on it.
> 3. Might that unsupported ioport prevent booting?
Can be possible...
Have to check the code that uses that I/O port...
[...]
--
J. Mayer <l_indien@magic.fr>
Never organized
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] OS/2 PPC booting making some progress
2005-05-21 11:57 ` [Qemu-devel] OS/2 PPC booting making some progress J. Mayer
@ 2005-05-22 13:49 ` Tero Kaarlela
2005-05-23 10:47 ` J. Mayer
2005-05-23 10:54 ` J. Mayer
0 siblings, 2 replies; 6+ messages in thread
From: Tero Kaarlela @ 2005-05-22 13:49 UTC (permalink / raw)
To: qemu-devel
J. Mayer wrote:
>> 2. on debug 2. What is this unaffected IO port 838 it tries to read &
>>write ?
>>
>>
>
>This port is not documented in the PREP specification. You should check
>in the Linux kernel to see if this port seems important. Or you may take
>a look to Motorola PowerStack documentation: those boards are well
>documented and OS/2 is supposed to know how to boot on it.
>
>
Hmmm I found following info from OS/2 stanza files(files describing
hardware to bootloader:
rdf.stz
planar_ide_0:
dev_class = IDE
adap_name = "IDE Disk Controller"
setting = "io:ide_int_reg:838" <=
setting = "io:ide_ctrl:3f6-3f7"
setting = "io:ide_cmd:1f0-1f7"
setting = "irq:ide_irq:d"
setting = "arb:ide_arb:6"
setting = "intrtn:ide_rtn:0"
So port 0838 is ide_int_reg
and from ppc_info.stz:
#Delmar/SouthWind
6050:
name = "IBM Delmar / South Wind PowerPC Platform"
pci_config_space = 0x80800000
bus = isa:4
bus = pci:4
built_in = planar_kbd
built_in = planar_mouse
built_in = planar_floppy
built_in = ppc_planar_parallel
built_in = COM1
built_in = COM2
built_in = CMOS_type1
built_in = planar_ide_0
built_in = planar_ide_1
So my guess is that OS/2 ppc reads machine configuration from these
files instead of residual data.
>
>
>> 3. Might that unsupported ioport prevent booting?
>>
>>
>
>Can be possible...
>Have to check the code that uses that I/O port...
>
>[...]
>
>
>
Hmmm... i succeeded to make it go further with following options:
boot-device ide_cdrom2
boot-fs cdrom
then it works and loads boot.cfg from cd-image
shows all lines from boot.cfg (and I have option to uncomment/change all
these)
loads kernel & device drivers into memory(as defined in boot.cfg)
but after boot.cfg has been completely read and real boot should start
it gives me invalid/unsupported opcodes again.
Tero
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [Qemu-devel] OS/2 PPC booting making some progress
2005-05-22 13:49 ` Tero Kaarlela
@ 2005-05-23 10:47 ` J. Mayer
2005-05-23 10:54 ` J. Mayer
1 sibling, 0 replies; 6+ messages in thread
From: J. Mayer @ 2005-05-23 10:47 UTC (permalink / raw)
To: qemu-devel
On Sun, 2005-05-22 at 16:49 +0300, Tero Kaarlela wrote:
> J. Mayer wrote:
>
> >> 2. on debug 2. What is this unaffected IO port 838 it tries to read &
> >>write ?
> >>
> >>
> >
> >This port is not documented in the PREP specification. You should check
> >in the Linux kernel to see if this port seems important. Or you may take
> >a look to Motorola PowerStack documentation: those boards are well
> >documented and OS/2 is supposed to know how to boot on it.
> >
> >
>
> Hmmm I found following info from OS/2 stanza files(files describing
> hardware to bootloader:
>
> rdf.stz
>
> planar_ide_0:
> dev_class = IDE
> adap_name = "IDE Disk Controller"
> setting = "io:ide_int_reg:838" <=
This gives no information of what this register is.
Maybe those informations are used if residual data are not correct
(which is the case with Open Hack'Ware: there are no devices
descriptions).
Or maybe you should try to tell OS/2 the platform is one that support
only ISA IDE.
--
J. Mayer <l_indien@magic.fr>
Never organized
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Qemu-devel] OS/2 PPC booting making some progress
2005-05-22 13:49 ` Tero Kaarlela
2005-05-23 10:47 ` J. Mayer
@ 2005-05-23 10:54 ` J. Mayer
1 sibling, 0 replies; 6+ messages in thread
From: J. Mayer @ 2005-05-23 10:54 UTC (permalink / raw)
To: qemu-devel
On Sun, 2005-05-22 at 16:49 +0300, Tero Kaarlela wrote:
> J. Mayer wrote:
>
> >> 2. on debug 2. What is this unaffected IO port 838 it tries to read &
> >>write ?
> >>
> >>
> >
> >This port is not documented in the PREP specification. You should check
> >in the Linux kernel to see if this port seems important. Or you may take
> >a look to Motorola PowerStack documentation: those boards are well
> >documented and OS/2 is supposed to know how to boot on it.
> >
> >
>
> Hmmm I found following info from OS/2 stanza files(files describing
> hardware to bootloader:
>
> rdf.stz
>
> planar_ide_0:
> dev_class = IDE
> adap_name = "IDE Disk Controller"
> setting = "io:ide_int_reg:838" <=
Hum, something else I forgot in my previous message:
I took a look into residual data of a real PREP machine (ie IBM 7420)
and ioport 838 is used for Power Management as you can see. Then, I
don't know what is really in use in PREP machine that OS/2 can boot on.
ResidualLength =
27148
Version =
0
Revision =
1
EC =
0
VPD
PrintableModel =
IBM
FirmwareSupplier =
IBMFirmware
FirmwareSupports =
0x00000fc5
:
Conventional
:
Diagnostics
:
Hex41
:
FAT
:
ISO9660
:
SCSI_InitiatorID_Override
:
Tape_Boot
:
FW_Boot_Path
NvramSize =
8192
NumSIMMSlots =
6
EndianSwitchMethod =
UsePort92
SpreadIOMethod =
Unknown
SmpIar =
0
RAMErrLogOffset =
0
ProcessorHz =
232649620
ProcessorBusHz =
66471369
TimeBaseDivisor =
4000
WordWidth =
32
PageSize =
4096
CoherenceBlockSize =
32
GranuleSize =
32
L1 Cache
variables
CacheSize =
64
CacheAttrib = Split
cache
CacheAssoc =
0
CacheLineSize =
0
[...]
13:
DEVICE_ID
Flags =
0x00002800
:
Static
:
Integrated
BaseType = SystemPeripheral
(8)
SubType = PowerManagement
(6)
Interface = GeneralPowerManagement
(0)
BUS_ACCESS
info0 =
0
info1 =
0
AllocatedOffset =
0x0000068e
LargeVendorItem:
0e 02 00 0e
00
IOPort:
0x82a-0x82b
IOPort:
0x838
IOPort:
0x860
IOPort:
0x862
SmallVendorItem:
IBM
01 24 4d 01
83
LargeVendorItem:
08 51 1a 00
00
PossibleOffset =
0x000006c5
CompatibleOffset =
0x000006c6
--
J. Mayer <l_indien@magic.fr>
Never organized
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2005-05-23 10:59 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2005-05-21 8:25 [Qemu-devel] OS/2 PPC booting making some progress Tero Kaarlela
2005-05-21 10:02 ` [Qemu-devel] OS/2 PPC booting making some progress(sorry this has correct entry point :) Tero Kaarlela
2005-05-21 11:57 ` [Qemu-devel] OS/2 PPC booting making some progress J. Mayer
2005-05-22 13:49 ` Tero Kaarlela
2005-05-23 10:47 ` J. Mayer
2005-05-23 10:54 ` J. Mayer
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