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| author | Olaf Hering <olaf@aepfle.de> | 2006-10-03 01:13:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 08:03:41 -0700 |
| commit | 873ef76bdc56561df75ef5c3f3842c3a64da795d (patch) | |
| tree | f717816f0768c7799d976f3dd5e4ace48452fba4 | |
| parent | 17a4506d0eb1f78c9018c06a79e7dd09ae78c3a8 (diff) | |
| download | linux-873ef76bdc56561df75ef5c3f3842c3a64da795d.tar.gz linux-873ef76bdc56561df75ef5c3f3842c3a64da795d.tar.bz2 linux-873ef76bdc56561df75ef5c3f3842c3a64da795d.zip | |
[PATCH] restore parport_pc probing on powermac
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 <olaf@aepfle.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 6 | ||||
| -rw-r--r-- | drivers/parport/parport_pc.c | 4 | ||||
| -rw-r--r-- | include/asm-powerpc/io.h | 1 |
3 files changed, 0 insertions, 11 deletions
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 98189d8efaca..4f0097f31bdb 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -415,12 +415,6 @@ static int pSeries_check_legacy_ioport(unsigned int baseport) 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; } diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index 43894ddec7dc..fe800dc0be9f 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -3374,10 +3374,6 @@ __setup("parport_init_mode=",parport_init_mode_setup); 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; diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h index 19b2ec1ec665..cbbd8c648df1 100644 --- a/include/asm-powerpc/io.h +++ b/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 |