Convert the nios2 architecture to make use of the new asm-generic/io.h to
provide address mapping functions. As nios2 actually performs
non-identity mapping between physical & virtual addresses we can't
simply make use of the generic functions, with the exception of being
able to drop our no-op unmap_physmem() and definitions of unused map
flags.
Feedback from architecture maintainers is welcome.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Thomas Chou <thomas@wytron.com.tw>
Zap ioremap(), as it is replaced by map_physmem(,,MAP_NOCACHE).
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Marek Vasut <marex@denx.de>
As virt_to_phys() is used a lot in DMA transfer, change it
to use physaddr_mask in global data. This will save an "if"
statement and get a little faster.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Marek Vasut <marex@denx.de>
Remove the useless parenthesis in asm/io.h as suggested
by Marek.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Marek Vasut <marex@denx.de>
As the virtual address and physical address mapping of nios2 with
MMU are different. Add a check of MMU, and fix the mapping.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Ley Foon Tan <lftan@altera.com>
Convert ioremap() to use io_region_base in dm cpu global data.
Also remove three unused io functions, which have style issue
and are replaced by macros already.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
These macros can be used to clear and set multiple bits
in a register using a single call.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Chin Liang See <clsee@altera.com>
Add ioremap() to map physical address to uncached virtual
address. We need this to convert the reg address from the
device tree.
The order of headers inclusion in interrupts.c is changed
because common.h will include board header that contains
IO_REGION_BASE.
In the future, the IO_REGION_BASE should be decided from
the device tree.
tree
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This helps to clean up the include/ directory so that it only contains
non-architecture-specific headers and also matches Linux's directory
layout which many U-Boot developers are already familiar with.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
