linux 2.6 pcmcia power issues
dhinds at sonic.net
Fri Feb 25 17:03:14 EST 2005
On Fri, Feb 25, 2005 at 10:00:40PM +0100, Dominik Brodowski wrote:
> try out "reserve=0x1e000000,0x01000000" instead -- I assume you have
> 512 MB RAM.
You know, I'd recommend that a sanity check be added to the yenta
driver so that it just bombs out with a more specific error message if
the bridge is not accessible.
This would catch several sorts of errors: bad ACPI memory maps, bad
BIOS resource assignments, some PCI bridging problems.
The pcmcia-cs drivers use the following code for this.
static int check_cb_mapping(socket_info_t *s)
u_int state = cb_readl(s, CB_SOCKET_STATE) >> 16;
/* A few sanity checks to validate the bridge mapping */
if ((cb_readb(s, 0x800+I365_IDENT) & 0x70) ||
(cb_readb(s, 0x800+I365_CSC) && cb_readb(s, 0x800+I365_CSC) &&
cb_readb(s, 0x800+I365_CSC)) || cb_readl(s, CB_SOCKET_FORCE) ||
((state & ~0x3000) || !(state & 0x3000)))
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