[coreboot] Acer Aspire M3300

[trevor]

On Mon, Nov 15, 2010 at 6:10 PM, Qing Pei Wang <wangqingpei at gmail.com> wrote:
> hi,
>    i think it's possible to port coreboot to m3300 for it's 780/700 which
> has already been
> supported by coreboot.
> For that, you can fist try to choose one of the 780 mainboard which have
> already been supported
> like mahogany, ma78gm etc. modify the superIO to ITE IT8720F.
> Try to get the spec of IT8720 to make it work under coreboot.
> the first thing is letting the serial port working then we can continue the
> other things.
>
> Best wishes
> Wang Qing Pei
> Phone: 86+18930528086
>


Hi,

>From what i have been able to find the it8720f is almost identical to
it8718f (the website says pin compatible).  I haven't been able to
find a public datasheet for it however.  I checked the it87 hwmon
driver which definitely confirms the similarity.  The only it8720f
specific sections was that it forces the routing of VCCH to VIN7 since
some boards are configured improperly.

Would it be best to modify the current it8717f to work for it8720f or
would be best to create a new directory
"coreboot/src/superio/ite/it8720f"?

I modified supiotool to use the same registers as the it8718f.  I've
included its output at the bottom of this email.  Does this look like
it will be enough to get the system to the next stage or is there
anything obvious missing.

Thanks again.

Trevor


superiotool r6024
Probing for ALi Super I/O at 0x3f0...
  Failed. Returned data: id=0xffff, rev=0xff
Probing for ALi Super I/O at 0x370...
  Failed. Returned data: id=0xffff, rev=0xff
Probing for Fintek Super I/O at 0x2e...
  Failed. Returned data: vid=0xffff, id=0xffff
Probing for Fintek Super I/O at 0x4e...
  Failed. Returned data: vid=0xffff, id=0xffff
Probing for Fintek Super I/O at 0x2e...
  Failed. Returned data: vid=0xffff, id=0xffff
Probing for Fintek Super I/O at 0x4e...
  Failed. Returned data: vid=0xffff, id=0xffff
Probing for ITE Super I/O (init=standard) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8502e) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8761e) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8228e) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=0x87,0x87) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=standard) at 0x2e...
Found ITE IT8720F (id=0x8720, rev=0x8) at 0x2e
Register dump:
idx 20 21 22 23 24 2b
val 87 20 08 00 00 00
def 87 18 01 00 00 00
LDN 0x00 (Floppy)
idx 30 60 61 70 74 f0 f1
val 00 00 00 00 04 00 00
def 00 03 f0 06 02 00 00
LDN 0x01 (COM1)
idx 30 60 61 70 f0 f1 f2 f3
val 00 03 f8 04 00 50 50 50
def 00 03 f8 04 00 50 00 7f
LDN 0x02 (COM2)
idx 30 60 61 70 f0 f1 f2 f3
val 00 02 f8 03 00 50 50 50
def 00 02 f8 03 00 50 00 7f
LDN 0x03 (Parallel port)
idx 30 60 61 62 63 70 74 f0
val 00 03 78 07 78 07 04 0b
def 00 03 78 07 78 07 03 03
LDN 0x04 (Environment controller)
idx 30 60 61 62 63 70 f0 f1  f2 f3 f4 f5 f6
val 01 0e 80 0e 00 00 80 80  20 00 00 00 00
def 00 02 90 02 30 09 00 00  00 00 00 NA NA
LDN 0x05 (Keyboard)
idx 30 60 61 62 63 70 71 f0
val 01 00 60 00 64 01 02 00
def 01 00 60 00 64 01 02 00
LDN 0x06 (Mouse)
idx 30 70 71 f0
val 01 0c 02 00
def 00 0c 02 00
LDN 0x07 (GPIO)
idx 25 26 27 28 29 2a 2c 60  61 62 63 64 65 70 71 72  73 74 b0 b1 b2
b3 b4 b5  b8 b9 ba bb bc bd c0 c1  c2 c3 c4 c5 c8 c9 ca cb  cc e0 e1
e2 e3 e4 e5 e6  e7 f0 f1 f2 f3 f4 f5 f6  f7 f8 f9 fa fb fc fd fe  ff
val c0 00 04 40 00 00 1d 00  00 0f 40 0a 30 00 00 00  00 00 00 00 00
00 00 00  20 00 00 01 00 00 01 00  00 41 00 00 01 00 00 41  00 00 00
00 00 00 00 00  00 00 00 00 00 00 1a 11  00 00 00 00 00 cf 00 00  00
def 01 00 00 40 00 00 00 00  00 00 00 00 00 00 00 20  38 00 00 00 00
00 00 00  00 00 00 00 00 00 01 00  00 40 00 00 01 00 00 40  00 00 00
00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 NA 00 00  00
LDN 0x0a (Consumer IR)
idx 30 60 61 70 f0
val 00 03 10 0b 06
def 00 03 10 0b 00
Environment controller (0x0e85)
Probing for ITE Super I/O (init=standard) at 0x4e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=legacy/it8661f) at 0x370...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for NSC Super I/O at 0x2e...
  Failed. Returned data: port=0xff, port+1=0xff
Probing for NSC Super I/O at 0x4e...
  Failed. Returned data: port=0xff, port+1=0xff
Probing for NSC Super I/O at 0x15c...
  Failed. Returned data: port=0xff, port+1=0xff
Probing for Nuvoton Super I/O (sid=0xfc) at 0x164e...
  Failed. Returned data: sid=0xff, id=0x00, rev=0x00
Probing for Nuvoton Super I/O (sid=0xfc) at 0x2e...
  Failed. Returned data: sid=0xff, id=0x00, rev=0x00
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x2e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x2e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x4e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x4e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x162e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x162e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x164e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x164e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x3f0...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x3f0...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x370...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x370...
  Failed. Returned data: id=0xff, rev=0xff
Probing for Winbond Super I/O (init=0x88) at 0x2e...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x88) at 0x4e...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x88) at 0x3f0...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x88) at 0x370...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x88) at 0x250...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for VIA Super I/O at 0x3f0...
  PCI device 1106:0686 not found.