On Tue, Jan 07, 2003 at 09:19:01AM -0500, Rafal Boni wrote:

>         return (unsigned char) mace_read_8 (MACEISA_RTC_BASE + (addr << 8));

I don't think the linux code DTRT.  From the SGI headers:

#define MACE_ISA_EXT (MACE_BASE + 0x00380000)
#define ISA_RTC_BASE   (MACE_ISA_EXT+0x20000)
#define RT_CLOCK_ADDR \
         (struct ds17287_clk *)PHYS_TO_K1(ISA_RTC_BASE+7)

... with ds17287_clk matching the standard mc register layout.  Would be
interesting to find out if anyone has actually tried the linux ip32
kernel.

> I'm not sure why com@mace works but the RTC doesn't and I can't find the
> sparse bits of docs I have  ATM.

The funny thing is that the RTC works for me with the +7 offset.  I can't
get the little guy to fail.

-- Chris
	GPG key FEB9DE7F (91AF 4534 4529 4BCC 31A5  938E 023E EEFB FEB9 DE7F)