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Currently, all imx pinctrl drivers maintain a big array of struct
imx_pin_reg which hard-codes data like register offset and mux mode
setting for each pin function. Every time a new imx SoC support is
added, we need to add such a big mount of data. With moving to single
kernel build, it's only matter of time to be blamed on memory consuming.
With DTC pre-processor support in place, the patch moves all these data
into device tree by redefining the PIN_FUNC_ID in imxXX-pinfunc.h and
changing the PIN_FUNC_ID parsing code a little bit.
The pin id gets re-numbered based on mux register offset, or config
register offset if the pin has no mux register, so that kernel can
identify the pin id from register offsets provided by device tree.
As a bonus point of the change, those arbitrary magic numbers standing
for particular PIN_FUNC_ID in device tree sources are now replaced by
macros to improve the readability of dts files.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
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Replace /include/ (dtc) with #include (C pre-processor) for all imx DT
files, so that gcc -E handles the entire include tree, and hence any of
those files can #include some other file e.g. for constant definitions.
This allows future use of #defines and header files in order to define
names for various constants, such as pinctrl settings. Use of those
features will increase the readability of the device tree files.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Add dtsi for imx6q and imx6dl with non-common blocks moved into there.
Major differences between imx6dl and imx6q:
* Dual vs. Quad cores
* single vs. dual IPU
* 128 vs. 256 KB OCRAM
* imx6q: ECSPI5, OpenVG (GC355), SATA
* imx6dl: I2C4, PXP, EPDC, LCDIF
* iomuxc/pads definition
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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i.MX6 Quad and i.MX6 DualLite is similar enough to share one dtsi
file, so rename imx6q.dtsi to imx6qdl.dtsi preparing for the addition
of imx6dl support.
Another member of i.MX6 series i.MX6 SoloLite is different enough
from the other two, so it will stand as a separate dtsi. That's why
we rename to imx6qdl.dtsi not imx6.dtsi.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Following omap3-evm.dts way, it changes all imx dts files to use label
in board dts to refer to nodes defined by soc dtsi. Thus, the board
dts files become easier to read and edit with the least indentation
levels.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Commit 9e3c0066 (ARM: dts: imx6q-arm2: add pinctrl for uart and enet)
defines NANDF_CS pins as gpio in 'hog', assuming these two pins are
always used by usdhc3 in gpio mode as card-detection and
write-protection on ARM2 board. But it's not true. These pins are
shared by usdhc3 and gpmi-nand. We should have the pins functional
for gpmi-nand when usdhc3 is disabled.
Move the pins out of 'hog', so that pins only work in gpio mode as CD
and WP when usdhc3 is enabled, and otherwise they are available for
gpmi-nand.
Reported-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Add missing pinctrl of uart and enet for imx6q-arm2 board.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Add the DT node for gpmi nand.
Add the pinmux support for gpmi nand.
The gpmi nand may conflicts with other modules, such as MMC.
So we do not enable the gpmi nand for mx6q-arm2 board, just add the
node for the board.
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Changes in the dt2 branch move stuff around that gets changed
in the drivers/mmc branch. I chose a non-obvious resolution by
adding the new bus-width property into all the tegra sdhci device
nodes.
Conflicts:
arch/arm/boot/dts/tegra-cardhu.dts
arch/arm/boot/dts/tegra-harmony.dts
arch/arm/boot/dts/tegra-ventana.dts
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This patch unifies the current DT MMC bindings documentation and code,
adds generic MMC DT bindings documentation, and updates .dts files for
consistency.
[cjb: typo fixes, addition of max-frequency property]
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Do not hardcode the local mac address.
Let bootloader retrieve it.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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It has been pointed out by device tree maintainer for several times
that the generic names 'serial' and 'ethernet' should be used for
those devices per ePAPR. Renames imx uart and fec device tree nodes
to stop them being bad examples.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
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Remove bootargs field as this information is retrieved from the bootloader.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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The Sabreauto board was renamed to Armadillo2 recently. To avoid
confusion, rename Sabreauto to Armadillo2/arm2.
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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