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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-07-15 13:03:11 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-08-14 14:58:08 +1000 |
| commit | 3fafe9c202321a3edc47386d2071af89555c9f45 (patch) | |
| tree | 7a809f8ab83049c69468e4c0a64f1ef977934d6a /arch/powerpc/kernel/io.c | |
| parent | b37193b71846858d816e152d3a5db010d7b73f5e (diff) | |
powerpc/powernv: Add PIO accessors for Power8 LPC bus
This uses the hooks provided by CONFIG_PPC_INDIRECT_PIO to
implement a set of hooks for IO port access to use the LPC
bus via OPAL calls for the first 64K of IO space
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/io.c')
| -rw-r--r-- | arch/powerpc/kernel/io.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/io.c b/arch/powerpc/kernel/io.c index 886381f32c3..2a2b4aeab80 100644 --- a/arch/powerpc/kernel/io.c +++ b/arch/powerpc/kernel/io.c @@ -25,6 +25,9 @@ #include <asm/firmware.h> #include <asm/bug.h> +/* See definition in io.h */ +bool isa_io_special; + void _insb(const volatile u8 __iomem *port, void *buf, long count) { u8 *tbuf = buf; |