x86, platform: Initial support for sta2x11 I/O hub

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The "ConneXt" sta2x11 I/O Hub is a bridge from PCIe to AMBA, and is
used as main chipset in some Atom boards.  The set of peripherals it
exports live in an AMBA bus internal to the chip, so a custom
remapping of addresses is needed. This is implemented by fixup calls
for the PCI deivices, based on CONFIG_X86_DEV_DMA_OPS and
CONFIG_X86_DMA_REMAP .

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Link: http://lkml.kernel.org/r/ddca670ca8180e52d49b3fe642742ddd23ab2cb2.1333560789.git.rubini@gnudd.com
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

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Alessandro Rubini 2012-04-04 19:40:21 +02:00 • committed by H. Peter Anvin

parent f7219a5300

commit 83125a3a18

3 changed files with 391 additions and 5 deletions

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28

arch/x86/Kconfig

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2

arch/x86/pci/Makefile

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366

arch/x86/pci/sta2x11-fixup.c

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