gayle: add "doubler" parameter
* Add "doubler" parameter to enable support for IDE doublers.
* Obsolete "ide=doubler" kernel parameter.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/Documentation/ide/ide.txt b/Documentation/ide/ide.txt
index caf24b2..0c78f4b 100644
--- a/Documentation/ide/ide.txt
+++ b/Documentation/ide/ide.txt
@@ -181,12 +181,6 @@
Summary of ide driver parameters for kernel command line
--------------------------------------------------------
- "ide=doubler" : probe/support IDE doublers on Amiga
-
-There may be more options than shown -- use the source, Luke!
-
-Everything else is rejected with a "BAD OPTION" message.
-
For legacy IDE VLB host drivers (ali14xx/dtc2278/ht6560b/qd65xx/umc8672)
you need to explicitly enable probing by using "probe" kernel parameter,
i.e. to enable probing for ALI M14xx chipsets (ali14xx host driver) use:
@@ -203,6 +197,9 @@
You also need to use "probe" kernel parameter for ide-4drives driver
(support for IDE generic chipset with four drives on one port).
+To enable support for IDE doublers on Amiga use "doubler" kernel parameter
+for gayle host driver (i.e. "gayle.doubler" if the driver is built-in).
+
To force ignoring cable detection (this should be needed only if you're using
short 40-wires cable which cannot be automatically detected - if this is not
a case please report it as a bug instead) use "ignore_cable" kernel parameter:
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index a4bceeec..a017eb2 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -866,7 +866,7 @@
printk(" : Enabled support for IDE doublers\n");
ide_doubler = 1;
- return 1;
+ goto obsolete_option;
}
#endif /* CONFIG_BLK_DEV_IDEDOUBLER */
diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c
index a0c9601..61a713b 100644
--- a/drivers/ide/legacy/gayle.c
+++ b/drivers/ide/legacy/gayle.c
@@ -63,6 +63,8 @@
#define GAYLE_HAS_CONTROL_REG (!ide_doubler)
#define GAYLE_IDEREG_SIZE (ide_doubler ? 0x1000 : 0x2000)
int ide_doubler = 0; /* support IDE doublers? */
+module_param_named(doubler, ide_doubler, bool, 0);
+MODULE_PARM_DESC(doubler, "enable support for IDE doublers");
#endif /* CONFIG_BLK_DEV_IDEDOUBLER */