Commit graph

8 commits

Author SHA1 Message Date
Olav Morken
a38de083d2 AVR32: Move addrspace.h to arch-directory, and move some functions from io.h to addrspace.h
The AVR32A architecture (which AT32UC3A-series is based on) has a
different memory layout than the AVR32B-architecture. This patch moves
addrspace.h to an arch-dependent directory in preparation for
AT32UC3A-support. It also moves some address-space manipulation
functions from io.h to addrspace.h.

Signed-off-by: Gunnar Rangoy <gunnar@rangoy.com>
Signed-off-by: Paul Driveklepp <pauldriveklepp@gmail.com>
Signed-off-by: Olav Morken <olavmrk@gmail.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-02-23 10:34:24 +01:00
Haavard Skinnemoen
92c78a3bbc avr32: Remove second definition of virt_to_phys()
The second definition introduced by 65e43a1063 conflicts with the
existing one.

Also, convert the existing definition to use phys_addr_t. The volatile
qualifier is still needed due to brain damage elsewhere.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-12-17 16:43:18 +01:00
Kumar Gala
65e43a1063 Introduce virt_to_phys()
virt_to_phys() returns the physical address given a virtual. In most
cases this will be just the input value as the vast majority of
systems run in a 1:1 mode.

However in systems that are not running this way it should report the
physical address or ~0 if no mapping exists for the given virtual
address.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-12-15 22:04:29 +01:00
Stefan Roese
f2302d4430 Fix merge problems
Signed-off-by: Stefan Roese <sr@denx.de>
2008-08-06 14:05:38 +02:00
Kumar Gala
e99ccb4881 Introduce phys_size_t and move phys_addr_t into asm/types.h
Also add CONFIG_PHYS_64BIT on powerpc to deal with 32-bit ppc's
that have larger physical addresses like 44x, 85xx, and 86xx.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-13 17:13:46 -07:00
Haavard Skinnemoen
4d7d6936eb Introduce map_physmem() and unmap_physmem()
map_physmem() returns a virtual address which can be used to access a
given physical address without involving the cache. unmap_physmem()
should be called when the virtual address returned by map_physmem() is
no longer needed.

This patch adds a stub implementation which simply returns the
physical address cast to a uchar * for all architectures except AVR32,
which converts the physical address to an uncached virtual mapping.
unmap_physmem() is a no-op on all architectures, but if any
architecture needs to do such mappings through the TLB, this is the
hook where those TLB entries can be invalidated.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2007-12-13 13:15:16 +01:00
Haiying Wang
3a197b2fe4 [PATCH v3] Add sync to ensure flash_write_cmd is fully finished
Some CPUs like PPC, BLACKFIN need sync() to ensure cfi flash write command
is fully finished. The sync() is defined in each CPU's io.h file. For
those CPUs which do not need sync for now, a dummy sync() is defined in
their io.h as well.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
2007-02-21 16:52:31 +01:00
Wolfgang Denk
7b64fef33c Add AVR32 architecture support
Patch by Haavard Skinnemoen, 6 Sep 2006 16:23:02 +0200

This patch adds common infrastructure code for the Atmel AVR32
architecture. See doc/README.AVR32 for details.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
2006-10-24 14:21:16 +02:00