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[ Upstream commit 418d5516568b3fdbc4e7b53677dd78aed8514565 ]
The DTSI file for the Nomadik does not properly specify how the
PL180 levelshifter is connected: the Nomadik actually needs all
the five st,sig-dir-* flags set to properly control all lines out.
Further this board supports full power cycling of the card, and
since this variant has no hardware clock gating, it needs a
ridiculously low frequency setting to keep up with the ever
overflowing FIFO.
The pin configuration set-up is a bit of a mystery, because of
course these pins are a mix of inputs and outputs. However the
reference implementation sets all pins to "output" with
unspecified initial value, so let's do that here as well.
Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control changes from Linus Walleij:
"Here is a stash of pin control changes I have collected for the v3.19
series. Mainly new hardware support, with Intels new embedded SoC as
the especially interesting thing standing out, fully using the
subsystem.
- Force conversion of the ux500 pin control device trees and parsers
to use the generic pin control bindings.
- New driver and device tree bindings for the Qualcomm PMIC MPP pin
controller and GPIO.
- Some ACPI infrastructure for pin controllers.
- New driver for the Intel CherryView/Braswell pin controller, the
first Intel pin controller to fully take advantage of the pin
control subsystem.
- Support the Freescale i.MX VF610 variant.
- Support the sunxi A80 variant.
- Support the Samsung Exynos 4415 and Exynos 7 variants.
- Split out Intel pin controllers to their own subdirectory.
- A large slew of rockchip pin control updates, including
suspend/resume support.
- A large slew of Samsung Exynos pin controller updates.
- Various minor updates and fixes"
* tag 'pinctrl-v3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (49 commits)
pinctrl: at91: enhance (debugfs) at91_gpio_dbg_show
pinctrl: meson: add device tree bindings documentation
gpio: tz1090: Fix error handling of irq_of_parse_and_map
pinctrl: tz1090-pinctrl.txt: Fix typo in binding
pinctrl: pinconf-generic: Declare dt_params/conf_items const
pinctrl: exynos: Add support for Exynos4415
pinctrl: exynos: Add initial driver data for Exynos7
pinctrl: exynos: Add irq_chip instance for Exynos7 wakeup interrupts
pinctrl: exynos: Consolidate irq domain callbacks
pinctrl: exynos: Generalize the eint16_31 demux code
pinctrl: samsung: Separate per-bank init and runtime data
pinctrl: samsung: Constify samsung_pin_ctrl struct
pinctrl: samsung: Constify samsung_pin_bank_type struct
pinctrl: samsung: Drop unused label field in samsung_pin_ctrl struct
pinctrl: samsung: Make samsung_pinctrl_get_soc_data use ERR_PTR()
pinctrl: Add Intel Cherryview/Braswell pin controller support
gpio / ACPI: Add knowledge about pin controllers to acpi_get_gpiod()
pinctrl: Fix path error in documentation
pinctrl: rockchip: save and restore gpio6_c6 pinmux in suspend/resume
pinctrl: rockchip: add suspend/resume functions
...
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The SoC file defines the location and type of the ethernet
adapter, this should be in the per-board file, as it is by no
means necessary to have an ethernet adapter connected to this
memory space.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This extra data line for high-speed MMC transfers was unrouted,
set it up properly in the dtsi file.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The idea to use two GPIO pins for bit-banged I2C is an S8815
pecularity, so move this over to the board-specific file and
out of the SoC core DTSI file.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Do not force disable the chrystals in the SoC file, this is
per-board dependent.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This pushes the setting of the card detect GPIO pin down into
the top-level file for the board, since it is not a property of
the ASIC (which this DTSI is about) but a property of the board
design.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This converts the Nomadik pin controller and all associated device
trees to use the standard, generic config bindings for pin controllers.
There are no such device trees deployed in the wild so this is
safe to do to set a good example.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This converts the Nomadik pin controller and all associated device
trees to use the standard, generic mux bindings for pin controllers.
There are no such device trees deployed in the wild so this is
safe to do to set a good example.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The GPIO pin connected to card detect was inverted twice: once by
the argument to the GPIO line itself where it was magically marked
as active low by the flag GPIO_ACTIVE_LOW (0x01) in the third cell,
and also marked active low AGAIN by explicitly stating
"cd-inverted" (a deprecated method).
After commit 78f87df2b4f8760954d7d80603d0cfcbd4759683
"mmc: mmci: Use the common mmc DT parser" this results in the
line being inverted twice so it was effectively uninverted, while
the old code would not have this effect, instead disregarding the
flag on the GPIO line altogether, which is a bug. I admit the
semantics may be unclear but inverting twice is as good a
definition as any on how this should work.
So fix up the buggy device tree. Use proper #includes so the DTS
is clear and readable.
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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The mmci host driver supports the common mmc DT parser, which enables
us to use the use common names instead.
Cc: Alessandro Rubini <rubini@unipv.it>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
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Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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We now have device tree support for setting the NAND timings
for FSMC from the device tree, so delete the last piece of
platform data and auxdata.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This adds the STw481x VMMC regulator to the Nomadik
device tree.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Instead of using bit-banged I2C, let's use the actual I2C
driver in the kernel. Since the I2C block may be communicating
with things like the PMIC, we need to select it from the Kconfig
just like the bit-banged adapter is selected today. The rest of
the configuration for this driver can be done from the device
tree.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This revamps the device tree to fit with the new clock
implementation and brings it quite a bit closer to how
the hardware actually works.
After this the clock implementation knows about all
clock gates and will gate off all unused clocks at
boot time and save a bit of power.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This moves the pin configuration for the Nomadik over to the
device tree using Gabriel's bindings. Remove the auxdata
nailing down the name of the pin controller as this is no
longer necessary.
Cc: Gabriel Fernandez <gabriel.fernandez@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This switches the Nomadik platform to also registering its
clocksource from the device tree, removing unused support
code as we go along.
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This moves all Nomadik clocks except the one used for the
timer/clocksource over to the device tree.
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This adds the GPIO-based I2C devices to the Nomadik device tree.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This moves over the MMC/SD card support to the device tree probe
path. The special GPIO to bias the card detect line is kept,
but the pin property is moved to the device tree as part of
the MMC/SD card node.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This converts the SMSC91x ethernet controller to use device
tree. The existing solution from the board file, to request the
GPIO triggering the ethernet IRQ from the board file is kept
for the time being, but the GPIO number assignment is moved
over to the device tree.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This moves the instances of the Nomadik pin controller and the
Nomadik GPIO blocks (also handled by the GPIO driver) over to
the device tree. A new compatible string is added to the
pin control driver in the process.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This adds the FSMC NAND driver and flash partitions to the Nomadik
device tree.
The only compatible string accepted by this driver is currently
"st,spear600-fsmc-nand" which is inappropriate for this system, so
this patch adds the compatible value "stericsson,fsmc-nand" as
well.
Cc: linux-mtd@vger.kernel.org
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The two remaining PrimeCells, RNG and RTC, are migrated to the
device tree for device tree boot.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Support basic device tree boot on the Nomadik. Implement the
support in the cpu file with the intent of deleting the board
files later. At this stage IRQ controllers, system timer,
l2x0 cache, UARTs and thus console boot is fully functional.
Patch out the code adding devices by initcalls for now so
as not to disturb the boot.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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