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Now that mbus has been added to the device tree, it's possible to
move the PCIe nodes out of the ocp node, placing it directly
below the mbus. This is a more accurate representation of the hardware.
Moving the PCIe nodes, we now need to introduce an extra cell to
encode the window target ID and attribute. Since this depends on
the PCIe port, we split the ranges translation entries, to
correspond to each MBus window.
In addition, we encode the PCIe memory and I/O apertures in the MBus
node, according to the MBus DT binding specification. The choice made
is 0xe0000000-0xf0000000 for memory space, and 0xf200000-0xf2100000 for
I/O space. These apertures can be changed in each per-board DT file.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device tree changes from Arnd Bergmann:
"These changes from 30 individual branches for the most part update
device tree files, but there are also a few source code changes that
have crept in this time, usually in order to atomically move over a
driver from using hardcoded data to DT probing.
A number of platforms change their DT files to use the C preprocessor,
which is causing a bit of churn, but that is hopefully only this once"
* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (372 commits)
ARM: at91: dt: rm9200ek: add spi support
ARM: at91: dt: rm9200: add spi support
ARM: at91/DT: at91sam9n12: add SPI DMA client infos
ARM: at91/DT: sama5d3: add SPI DMA client infos
ARM: at91/DT: fix SPI compatibility string
ARM: Kirkwood: Fix the internal register ranges translation
ARM: dts: bcm281xx: change comment to C89 style
ARM: mmc: bcm281xx SDHCI driver (dt mods)
ARM: nomadik: add the new clocks to the device tree
clk: nomadik: implement the Nomadik clocks properly
ARM: dts: omap5-uevm: Provide USB Host PHY clock frequency
ARM: dts: omap4-panda: Fix DVI EDID reads
ARM: dts: omap4-panda: Add USB Host support
arm: mvebu: enable mini-PCIe connectors on Armada 370 RD
ARM: shmobile: irqpin: add a DT property to enable masking on parent
ARM: dts: AM43x EPOS EVM support
ARM: dts: OMAP5: Add bandgap DT entry
ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM
ARM: dts: AM33XX: Add pinmux configuration for CPSW to EVMsk
ARM: dts: AM33XX: Add pinmux configuration for CPSW to beaglebone
...
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Some kirkwood variants (for instance present in the prestera SoCs) do
not have all the peripherals whose nodes are declared in
kirkwood.dtsi. These missing peripherals are SATA, SDIO, and RTC.
As discussed in [1], to avoid that these missing peripherals get
initialized which could result in system hangs when accessing
undocumented/not present HW registers, their corresponding OF nodes
should not get declared at all for some kirkwood variants.
The corresponding OF nodes of these peripherals thus are moved from
kirkwood.dtsi to the kirkwood-628x.dtsi files so that they still are
initialized for these variants where they are present.
[1]
http://lists.infradead.org/pipermail/linux-arm-kernel/2013-May/167154.html
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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This commit adds Device Tree details to enable the PCIe interfaces on
Kirkwood. The 6281 has one PCIe interface, the 6282 has two PCIe
interfaces.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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Signed-off-by: Stefan Peter <s.peter@mpl.ch>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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There are a couple of different variants of Kirkwood, which differ in
the pin muxing. These DTSI files set the correct compatibility and
define commonly used groups of pins, which board dbs files can
reference.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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