linux.git/include/asm-sh/io.h, branch master

sh: migrate to arch/sh/include/

2008-07-28T23:09:44+00:00

This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac.

Most of the moving about was done with Sam's directions at:

http://marc.info/?l=linux-sh&m=121724823706062&w=2

with subsequent hacking and fixups entirely my fault.

Signed-off-by: Sam Ravnborg 
Signed-off-by: Paul Mundt

sh64: Fixup the nommu build.

2008-05-08T10:51:37+00:00

Signed-off-by: Paul Mundt

sh: fix ioreadN_rep and iowriteN_rep

2008-02-14T05:25:37+00:00

This patch is a fix to make sure readsN/writesN are used over insN/outsN for
ioreadN_rep/iowriteN_rep.

The current state of the sh io code is that mmio operations like readN/writeN
and ioreadN/iowriteN are unaffected by the value of generic_io_base. This is
different fom port based io like inN/outN which gets adjusted using the value
in generic_io_base.

Without this patch ioreadN_rep/iowriteN_rep get their addresses adjusted.
The address for mmio access is adjusted using generic_io_base. This is wrong.
The ata core code currently crashes if generic_io_base is set.

This patch changes ioreadN_rep/iowriteN_rep to follow the same rules as the
rest of the mmio operations, ie don't adjust using generic_io_base.

Signed-off-by: Magnus Damm 
Acked-by: Katsuya MATSUBARA 
Signed-off-by: Paul Mundt

sh: trapped io support V2

2008-02-14T05:22:09+00:00

The idea is that we want to get rid of the in/out/readb/writeb callbacks from
the machvec and replace that with simple inline read and write operations to
memory. Fast and simple for most hardware devices (think pci).

Some devices require special treatment though - like 16-bit only CF devices -
so we need to have some method to hook in callbacks.

This patch makes it possible to add a per-device trap generating filter. This
way we can get maximum performance of sane hardware - which doesn't need this
filter - and crappy hardware works but gets punished by a performance hit.

V2 changes things around a bit and replaces io access callbacks with a
simple minimum_bus_width value. In the future we can add stride as well.

Signed-off-by: Magnus Damm 
Signed-off-by: Paul Mundt

sh: Clean up places that make 29-bit physical assumptions.

2008-01-28T04:18:59+00:00

Signed-off-by: Stuart Menefy 
Signed-off-by: Paul Mundt

sh: Add onchip remap prototypes, kill old sh64 io.h.

2008-01-28T04:18:53+00:00

Signed-off-by: Paul Mundt

sh: Move quad-word real-address I/O defs to io.h.

2008-01-28T04:18:50+00:00

Signed-off-by: Paul Mundt

sh: Add SH-5 support to io.h.

2008-01-28T04:18:40+00:00

Signed-off-by: Paul Mundt

Remove dma_cache_(wback|inv|wback_inv) functions

2007-10-17T15:42:57+00:00

dma_cache_(wback|inv|wback_inv) were the earliest attempt on a generalized
cache managment API for I/O purposes.  Originally it was basically the raw
MIPS low level cache API exported to the entire world.  The API has
suffered from a lack of documentation, was not very widely used unlike it's
more modern brothers and can easily be replaced by dma_cache_sync.  So
remove it rsp.  turn the surviving bits back into an arch private API, as
discussed on linux-arch.

Signed-off-by: Ralf Baechle 
Acked-by: Paul Mundt 
Acked-by: Paul Mackerras 
Acked-by: David S. Miller 
Acked-by: Kyle McMartin 
Acked-by: Haavard Skinnemoen 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sh: add writesb(), readsb(), writesw() and readsw() to io.h

2007-09-21T02:57:52+00:00

This patch adds inline versions of writesb(), readsb(), writesw() and
readsw() to include/asm-sh/io.h. Stolen from include/asm-avr32/io.h.

These functions are needed to compile certain device drivers such as
ax88796.

Signed-off-by: Magnus Damm 
Signed-off-by: Paul Mundt