diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2010-05-25 20:06:13 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-06-02 16:31:42 +0900 |
| commit | 86e4dd5add77ab809f5427391dfabb8f78cbcb58 (patch) | |
| tree | 43d2c40951df78d5404a72da214f8c8a788d3de3 /arch/sh/kernel/io_trapped.c | |
| parent | 1c98347e613bf17ea2f18c9766ce0ab77f65a96d (diff) | |
sh: support for platforms without PIO.
This extends some of the existing special casing for HAS_IOPORT
platforms and gets it to the point where platforms can begin to
conditionally select it.
The major changes here are that the PIO routines themselves go away
completely, including all of the machvec port mapping wrappers. With this
in place it's possible for any non-machvec abusing platform to disable
PIO completely. At present this is left as an opt-in until the abusers
are the odd ones out instead of the majority.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/io_trapped.c')
| -rw-r--r-- | arch/sh/kernel/io_trapped.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sh/kernel/io_trapped.c b/arch/sh/kernel/io_trapped.c index 4a8bb4eeb8ad..2947d2bd1291 100644 --- a/arch/sh/kernel/io_trapped.c +++ b/arch/sh/kernel/io_trapped.c @@ -91,10 +91,14 @@ int register_trapped_io(struct trapped_io *tiop) tiop->magic = IO_TRAPPED_MAGIC; INIT_LIST_HEAD(&tiop->list); spin_lock_irq(&trapped_lock); +#ifdef CONFIG_HAS_IOPORT if (flags & IORESOURCE_IO) list_add(&tiop->list, &trapped_io); +#endif +#ifdef CONFIG_HAS_IOMEM if (flags & IORESOURCE_MEM) list_add(&tiop->list, &trapped_mem); +#endif spin_unlock_irq(&trapped_lock); return 0; |