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Sad: you're not kidding 

Forum: PCMCIA Installation and Configuration Issues
Re: Sad: "Bad address mapping" on Sony N505VE (toby cabot)
Re: A strange problem (David Hinds)
Date: 2000, Jun 20
From: toby cabot toby

Dave,

It sure is a strange problem. I can't for the life of me figure out what changed between "working fine" for the last five months since the machine was new and "FUBAR" now. I've tried warm-booting from Windows, cold boot, remove battery and power then re-boot, and nothing seems to work (except for win98, which works fine, which really pisses me off).

I scanned my messages log and found that the bridge mapping used to be 0x68000000 when things were working. So I tried setting the cb_mem_base to 0x68000000 but then get "Bad bridge mapping at 0x680000dc!".

I've also tried kernel 2.2.16 with pcmcia-cs 3.1.16 with the same results.

I looked for BIOS upgrades on the Sony website and no luck.

I guess I could try a pre-2.4 kernel but I'm not usually that cutting-edge.

Regards,
Toby

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Maybe a very particular hardware fault

Re: Sad: you're not kidding (toby cabot)
Date: 2000, Jun 20
From: David Hinds <dhinds@pcmcia.sourceforge.org> 

> I scanned my messages log and found that the bridge mapping used to be
> 0x68000000 when things were working. So I tried setting the cb_mem_base
> to 0x68000000 but then get "Bad bridge mapping at 0x680000dc!".

This smells like a hardware failure.  The PCMCIA drivers are writing
0x68000000 to a register, and it is reading back as 0x680000dc.  Maybe
Windows works because it only writes to this register and never relies
on reading it back.

Just for kicks, you could try editing modules/i82365.c, find the line
that says:

 pci_readl(s, PCI_BASE_ADDRESS_0, &s->cb_phys);

and add right after that:

 s->cb_phys &= ~0x0fff;

-- Dave
1. Agree: looks like you're right by toby cabot, 2000, Jun 21
you're not kidding

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