[parisc-linux] Some questions about the 715/50

[parisc-linux] Some questions about the 715/50

[Alex deVries]

Here's a few choice entries from the inventory scan on my lovable
715/50:

2. Scorpio Core BA (11) at 0xf082f000, versions 0x7, 0x0, 0x70, 0x0,
0x0        
3. Scorpio Core SCSI (10) at 0xf0825000, versions 0x7, 0x0, 0x71, 0x0,
0x0      
4. Scorpio Core LAN (802.3) (10) at 0xf0826000, versions 0x7, 0x0, 0x72,
0x0, 00
5. Scorpio Core HIL (10) at 0xf0821000, versions 0x7, 0x0, 0x73, 0x0,
0x0       
6. Scorpio Core RS-232 (10) at 0xf0823000, versions 0x7, 0x0, 0x75, 0x0,
0x0    
...
9. Scorpio Audio (10) at 0xf1000000, versions 0x7, 0x0, 0x7b, 0x0,
0x0          
10. Scorpio EISA BA (11) at 0xfc000000, versions 0x7, 0x0, 0x76, 0x0,
0x0       

Scorpio's a 715/old, and has two IO chips in it: WAX and Lasi. Scorpio
Jr. (715/33) and Scorpio Sr. (715/75) are identical.

My questions:

a. The docs say that WAX's HIL on a GSC (not GSC+) is at 0xf0201000, but
the HIL reported above is clearly in the ASP range.  Is there actually a
HIL controller on ASP? More importantly, how are the interrupts routed?

b. What on earth is that sound chip at 0xf1000000? Is that Cherry?

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.

Re: [parisc-linux] Some questions about the 715/50

[Matthew Wilcox]

On Sat, Dec 23, 2000 at 12:48:16PM -0500, Alex deVries wrote:
> Scorpio's a 715/old, and has two IO chips in it: WAX and Lasi. Scorpio
> Jr. (715/33) and Scorpio Sr. (715/75) are identical.

uh, no, it has Wax and Asp.  Lasi was a later chip.  It's very similar to
Lasi though.

> My questions:
> 
> a. The docs say that WAX's HIL on a GSC (not GSC+) is at 0xf0201000, but
> the HIL reported above is clearly in the ASP range.  Is there actually a
> HIL controller on ASP? More importantly, how are the interrupts routed?

The HIL controller is definitely on Asp.  The interrupt `just worked'
when i first stole phil blundell's hil driver he'd written for the hp300.

-- 
Revolutions do not require corporate support.

Re: [parisc-linux] Some questions about the 715/50

[Alex deVries]

Matthew Wilcox wrote:
> 
> On Sat, Dec 23, 2000 at 12:48:16PM -0500, Alex deVries wrote:
> > Scorpio's a 715/old, and has two IO chips in it: WAX and Lasi. Scorpio
> > Jr. (715/33) and Scorpio Sr. (715/75) are identical.
> 
> uh, no, it has Wax and Asp.  Lasi was a later chip.  It's very similar to
> Lasi though.

I actually meant to type ASP, but the letters L-A-S-I came out of my
fingers.


> > My questions:
> > a. The docs say that WAX's HIL on a GSC (not GSC+) is at 0xf0201000, but
> > the HIL reported above is clearly in the ASP range.  Is there actually a
> > HIL controller on ASP? More importantly, how are the interrupts routed?
> The HIL controller is definitely on Asp.  The interrupt `just worked'
> when i first stole phil blundell's hil driver he'd written for the hp300.

So that's interesting... the LASI ERS says nothing about there being a
HIL controller, so the HIL controller must have been dropped in the
ASP->Lasi transition.

So here's the keyboard and serial situation on older machines:

Model               IO Chips      Keyboard       Serial
==========================================================
712     Gecko       Lasi          PS/2 on Lasi   1 on Lasi
715/old Scorpio     ASP, Wax      HIL on ASP     2 on ASP
725     Spectra     ASP, Wax      HIL on ASP     2 on ASP
715/new Mirage      Lasi, Wax     HIL on Wax     1 on Lasi, 1 on Wax

I'm not sure how much Wax stuff is actually running for HIL or Serial.

- Alex

-- 
Alex deVries, Principal Solutions Architect, The Puffins at Linuxcare
613.562.2759 tel
alex@linuxcare.com, http://www.linuxcare.com/
Linuxcare, Support for the revolution.