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path: root/arch/sh/kernel/io_generic.c
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2009-11-12sh: Use the generic I/O port base for slowdown.Paul Mundt
This fixes up the build and behaviour for various configurations. Namely the CONFIG_32BIT cases where legacy mappings do not exist, as well as the sh64 build. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-09-28sh: Handle ioport_map() cases for >= P1SEG addresses.Paul Mundt
This fixes up the case where certain drivers already do their own remapping and subsequently attempt to use the PIO calls for I/O. In this case there is no additional remapping that needs to be done, and the address can be casted in to the cookie directly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-24sh: generic_in/outs{bwl} optimizations.Stuart Menefy
After performing the port2addr conversion, and checking that the data is correctly aligned, simply call __raw_readsX/writesX. These have already been optimised. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-04sh: More I/O routine overhauling.Paul Mundt
This tidies up a lot of the PIO/MMIO split. No in-tree platforms were making use of the MMIO overloading through the machvec (nor have any of them been in some time), so we just kill all of that off. The ISA I/O routine wrapping remains unaffected, which remains the only special casing outside of the iomap API that boards need to think about. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: fixup many sparse errors.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-02-14sh: trapped io support V2Magnus Damm
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 <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-03-05sh: Revert lazy dcache writeback changes.Paul Mundt
These ended up causing too many problems on older parts, revert for now.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-15sh: rts7751r2d board updates.Paul Mundt
This tidies up some of the rts7751r2d mess and gets it booting again. Update the defconfig, too. Signed-off-by: Masayuki Hosokawa <hosokawa@ace-jp.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-01-16[PATCH] sh: I/O routine cleanups and ioremap() overhaulPaul Mundt
This introduces a few changes in the way that the I/O routines are defined on SH, specifically so that things like the iomap API properly wrap through the machvec for board-specific quirks. In addition to this, the old p3_ioremap() work is converted to a more generic __ioremap() that will map through the PMB if it's available, or fall back on page tables for everything else. An alpha-like IO_CONCAT is also added so we can start to clean up the board-specific io.h mess, which will be handled in board update patches.. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!