GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-27 00:51:35 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

[POWERPC] Generic check_legacy_ioport

Browse source 
check_legacy_ioport makes only sense on PREP, CHRP and pSeries.
They may have an isa node with PS/2, parport, floppy and serial ports.

Remove the check_legacy_ioport call from ppc_md, it's not needed
anymore.  Hardware capabilities come from the device-tree.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Olaf Hering 2007-04-26 06:36:56 +10:00 • committed by Paul Mackerras
parent 8d2169e8d6
commit 8d8a0241eb
9 changed files with 37 additions and 81 deletions
Download patch file Download diff file Expand all files Collapse all files

34
arch/powerpc/kernel/setup-common.c
View file

@ -478,11 +478,39 @@ void probe_machine(void)
printk(KERN_INFO "Using %s machine description\n", ppc_md.name);
}
/* Match a class of boards, not a specific device configuration. */
int check_legacy_ioport(unsigned long base_port)
{
if (ppc_md.check_legacy_ioport == NULL)
return 0;
return ppc_md.check_legacy_ioport(base_port);
struct device_node *parent, *np = NULL;
int ret = -ENODEV;
switch(base_port) {
case I8042_DATA_REG:
np = of_find_node_by_type(NULL, "8042");
break;
case FDC_BASE: /* FDC1 */
np = of_find_node_by_type(NULL, "fdc");
break;
#ifdef CONFIG_PPC_PREP
case _PIDXR:
case _PNPWRP:
case PNPBIOS_BASE:
/* implement me */
#endif
default:
/* ipmi is supposed to fail here */
break;
}
if (!np)
return ret;
parent = of_get_parent(np);
if (parent) {
if (strcmp(parent->type, "isa") == 0)
ret = 0;
of_node_put(parent);
}
of_node_put(np);
return ret;
}
EXPORT_SYMBOL(check_legacy_ioport);