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Introduce CONFIG_GENERIC_IO

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There are situations where CONFIG_HAS_IOMEM is too restrictive.
For example CONFIG_MTD_NAND_NANDSIM depends on CONFIG_HAS_IOMEM
but it works perfectly fine if an architecture without io memory
just includes asm-generic/io.h or implements everything defined in it.
UML is such a corner case.

Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger 2012-02-07 01:22:46 +01:00
parent 4c3ff74742
commit 087fafd152
1 changed files with 5 additions and 0 deletions
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5
lib/Kconfig
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@ -29,6 +29,10 @@ config GENERIC_IOMAP
bool
select GENERIC_PCI_IOMAP
config GENERIC_IO
boolean
default n
config CRC_CCITT
tristate "CRC-CCITT functions"
help
@ -224,6 +228,7 @@ config BTREE
config HAS_IOMEM
boolean
depends on !NO_IOMEM
select GENERIC_IO
default y
config HAS_IOPORT