The last change for partport_pc did fix the common case for all PowerMacs,
but it broke the case for PCI multiport IO cards.
In fact, the config option CONFIG_PARPORT_PC_SUPERIO=y lead to a hard crash
when cups probed the parport driver. It enables the winbond and smsc probing.
Remove the PARPORT_BASE check again, parport_pc_find_nonpci_ports() will take
care of it.
All powerpc configs should have CONFIG_PARPORT_PC_SUPERIO=n, the code did not
find anything on the chrp boards we tested it on.
Tested on a G4/466 with a PCI card:
0001:10:13.0 Serial controller: Timedia Technology Co Ltd PCI2S550 (Dual 16550 UART) (rev 01) (prog-if 02 [16550])
Subsystem: Timedia Technology Co Ltd Unknown device 5079
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 53
Region 0: I/O ports at f2000800 [size=32]
Region 2: I/O ports at f2000870 [size=8]
Region 3: I/O ports at f2000860 [size=8]
Signed-off-by: Olaf Hering <[email protected]>
---
arch/powerpc/platforms/pseries/setup.c | 6 ------
drivers/parport/parport_pc.c | 4 ----
include/asm-powerpc/io.h | 1 -
3 files changed, 11 deletions(-)
Index: linux-2.6.18-git17/arch/powerpc/platforms/pseries/setup.c
===================================================================
--- linux-2.6.18-git17.orig/arch/powerpc/platforms/pseries/setup.c
+++ linux-2.6.18-git17/arch/powerpc/platforms/pseries/setup.c
@@ -415,12 +415,6 @@ static int pSeries_check_legacy_ioport(u
return -ENODEV;
of_node_put(np);
break;
- case PARALLEL_BASE:
- np = of_find_node_by_type(NULL, "parallel");
- if (np == NULL)
- return -ENODEV;
- of_node_put(np);
- break;
}
return 0;
}
Index: linux-2.6.18-git17/drivers/parport/parport_pc.c
===================================================================
--- linux-2.6.18-git17.orig/drivers/parport/parport_pc.c
+++ linux-2.6.18-git17/drivers/parport/parport_pc.c
@@ -3374,10 +3374,6 @@ __setup("parport_init_mode=",parport_ini
static int __init parport_pc_init(void)
{
-#if defined(CONFIG_PPC_MERGE)
- if (check_legacy_ioport(PARALLEL_BASE))
- return -ENODEV;
-#endif
if (parse_parport_params())
return -EINVAL;
Index: linux-2.6.18-git17/include/asm-powerpc/io.h
===================================================================
--- linux-2.6.18-git17.orig/include/asm-powerpc/io.h
+++ linux-2.6.18-git17/include/asm-powerpc/io.h
@@ -11,7 +11,6 @@
/* Check of existence of legacy devices */
extern int check_legacy_ioport(unsigned long base_port);
-#define PARALLEL_BASE 0x378
#define PNPBIOS_BASE 0xf000 /* only relevant for PReP */
#ifndef CONFIG_PPC64
-
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