Previously, in order for the `pinctrl-*` DT node properties
to be properly processed, the pinctrl's subnodes were limited
to only having the `pinmux` property as well as other additional
properties (slew-rate, bias-disable, etc.). Now, with this patch
the pinctrl driver is made to work similarly to the one from Linux.
It can now distinguish between one subnode and a subnode with multiple
subnodes.
Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>
This has been done in order to align the DT of U-Boot with the DT
of Linux. In Linux, a phandle from a '-gpio' DT property is linked
to the pinctrl driver, a single driver that handles both pinctrl
settings and offers GPIO API to callers. On the other hand,
U-Boot redirects such phandle to a corresponding UCLASS_GPIO
driver, because U-Boot offers two different types of drivers
in this case: UCLASS_PINCTRL which handles pin functions and
UCLASS_GPIO which handles gpio requests as a gpio provider.
Due to this, we have two drivers in Uboot, but the Devicetree
has a single node. Thus, just one of the drivers can be probed
for the DT node during platform initialization, before relocation.
Our previous solution in U-Boot was to have a different devicetree:
the gpio node has a subnode for the pinctrl driver, which
is not compliant with Linux ABI. Furthermore, our documentation
for this type of nodes mentions no such gpio compatible.
After this patch, we can no longer add nodes with a gpio
compatible in the DT. Thus, in order to link the pinctrl driver to
the gpio one, a hook to the bind method of the former in U-Boot has
been added and the GPIO related compatibles have been removed to
avoid conflict when compatibles are enumerated and bound to drivers
during platform start before relocation. The bind method will attach
the GPIO driver to the pinctrl DT node so that every phandle coming
from '-gpio' DT properties will be redirected to a valid driver
attached to the pinctrl DT node.
Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>
Add FWSPICS1 and SPI1CS1 in AST2500 pinctrl group.
On AST2500 EVB, FWSPICS1 can be supported by default.
An extra jumper, J45, should be configured before
enabling SPI1CS1.
Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
In more cases group name consist of function name followed by function
number. So if function name is just prefix of group name, show group name.
So in 'pinmux status -a' command output would be visible also extended
function number, which is useful for debugging.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
All 3 MPP pins (20, 21 and 22) can be configured individually and also can
be configured to GPIO functions. Fix definitions for these MPP pins in
existing pin groups. After this change GPIO function can be enabled just
for one of these 3 pins.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Current pin control driver applies SDHCI PHY MUX selection
when board DT calls for eMMC function on MPP wires.
However, for CP side eMMC, only the "armada-8k-cpm-pinctrl"
compatibility string is taken into account, which causes
CP-SDHCI on Armada-7K boards to fail.
This patch adds "armada-7k-pinctrl" compatibility string
handling for the CP-SDHCI PHY configuration case.
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Reviewed-by: Igal Liberman <igall@marvell.com>
Reviewed-by: Stefan Roese <sr@denx.de>
These functions are required for 'pinmux status -a' command to print
current configuration of each MPP pin.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
To automatically enable GPIO functionality of some MPP pin, it is required
to implement .gpio_request_enable and .gpio_disable_free callbacks in
pinctrl driver and set .request and .rfree callbacks in GPIO driver to
pinctrl_gpio_request / pinctrl_gpio_free functions.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This change allows to use pinctrl_gpio_request() function as a direct
pointer for dm_gpio_ops's .request callback.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This new Armada 38x driver is based on Linux kernel driver. It can set any
pin to any valid function specified in DT like Linux kernel, it provides
support for 'pinmux status -a' command and also for pinctrl_gpio_request().
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This new function pinctrl_generic_set_state_prefix() behaves like
pinctrl_generic_set_state() but it takes third string argument which is
used as the prefix for each device tree string property.
This is needed for Marvell pinctrl drivers, becase Linux device tree files
have pinmux properties prefixed by "marvell," string.
This change allows to use generic U-Boot pinctrl functions for Armada 38x
pinctrl driver without need to copy+paste of the majority U-Boot pinctrl
code.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This patch adds pinctrl support for MediaTek MT7621 SoC.
The MT7621 SoC supports pinconf, but it is not the same as mt7628.
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
cpu:
- Add driver for microblaze cpu
net:
- Add support for DM_ETH_PHY to AXI emac and emaclite
xilinx:
- Switch platforms to DM_ETH_PHY
- DT chagnes in ZynqMP and Zynq
- Enable support for SquashFS
zynqmp:
- Add support for KR260 boards
- Move BSS from address 0
- Move platform identification from board code to soc driver
- Improve zynqmp_psu_init_minimize
versal:
- Enable loading app at EL1
serial:
- Setup default address and clock rates for DEBUG uarts
pinctrl:
- Add support for tri state and output enable properties
relocate-rela:
- Clean relocate-rela implementation for ARM64
- Add support for Microblaze
microblaze:
- Add support for runtime relocation
- Rework cache handling (wiring, Kconfig) based on cpuinfo
- Remove interrupt support
timer:
- Extract axi timer driver from Microblaze to generic location
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Merge tag 'xilinx-for-v2022.10' of https://source.denx.de/u-boot/custodians/u-boot-microblaze into next
Xilinx changes for v2022.10
cpu:
- Add driver for microblaze cpu
net:
- Add support for DM_ETH_PHY to AXI emac and emaclite
xilinx:
- Switch platforms to DM_ETH_PHY
- DT chagnes in ZynqMP and Zynq
- Enable support for SquashFS
zynqmp:
- Add support for KR260 boards
- Move BSS from address 0
- Move platform identification from board code to soc driver
- Improve zynqmp_psu_init_minimize
versal:
- Enable loading app at EL1
serial:
- Setup default address and clock rates for DEBUG uarts
pinctrl:
- Add support for tri state and output enable properties
relocate-rela:
- Clean relocate-rela implementation for ARM64
- Add support for Microblaze
microblaze:
- Add support for runtime relocation
- Rework cache handling (wiring, Kconfig) based on cpuinfo
- Remove interrupt support
timer:
- Extract axi timer driver from Microblaze to generic location
Add support to handle 'output-enable' and 'bias-high-impedance'
configurations. DT property output-enable brings out the pins from
tri-state, whereas bias-high-impedance changes the pins state to
tri-state.
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/1a02cd41d183d397ebce23c497178281c7286692.1655286745.git.michal.simek@amd.com
Replace reference to the correct name STMicroelectronics
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Add support for "st,stm32mp135-pinctrl" for STM32MP13x
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Currently, pinctrl drivers only get probed if pinconf is actually being
used, however on SoC-s like Armada 3720 pinctrl driver is a also the GPIO
driver.
So, if the pinctrl driver doesn't get probed GPIO-s won't get registered
and thus they cannot be used.
This is a problem on the Methode eDPU as it just uses SB pins as GPIO-s
and without them being registered networking won't work as it only has
one SFP slot and the TX disable GPIO is on the SB controller.
So, probe the pinctrl drivers using DM_FLAG_PROBE_AFTER_BIND like LED
uclass does.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
On some STM32 SoC's package, GPIO bank may have hole in their GPIO bank
Example:
If GPIO bank have 16 GPIO pins [0-15].
In particular SoC's package case, some GPIO bank can have less GPIO pins:
- [0-10] => 11 pins;
- [2-7] => 6 pins.
Commit dbf928dd26 ("gpio: stm32f7: Add gpio bank holes management")
proposed a first implementation by not counting GPIO "inside" hole. GPIO
are not displaying correctly using gpio or pinmux command when GPIO holes
are located at the beginning of GPIO bank.
To simplify, consider that all GPIO have 16 GPIO and use the gpio_ranges
struct to indicate if a GPIO is mapped or not. GPIO uclass offers several
GPIO functions ("input", "output", "unused", "unknown" and "func"), use
"unknown" GPIO function to indicate that a GPIO is not mapped.
stm32_offset_to_index() is no more needed and removed.
This must be reflected using the "gpio" command to indicate to user
that a particular GPIO is not mapped (marked as "unknown") as shown below:
Example for a 16 pins GPIO bank with the [2-7] mapping (only 6 pins
mapped):
GPIOI0 : unknown
GPIOI1 : unknown
GPIOI2 : analog
GPIOI3 : analog
GPIOI4 : alt function 0 push-pull pull-down
GPIOI5 : alt function 0 push-pull pull-down
GPIOI6 : alt function 0 push-pull pull-down
GPIOI7 : analog
GPIOI8 : unknown
GPIOI9 : unknown
GPIOI10 : unknown
GPIOI11 : unknown
GPIOI12 : unknown
GPIOI13 : unknown
GPIOI14 : unknown
GPIOI15 : unknown
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
GPIOF_UNKNOWN becomes a valid pin muxing information to indicate
that a pin is not mapped.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
pinmux_mode[] is linked to gpio_function[] defined in gpio-uclass.c
So reuse the same gpio_func_t enum value
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
There are many pins in an SoC, and register usage may vary by pins.
This patch introduces a concept of "io type" and "io type group"
to mediatek pinctrl drivers. This can provide different pinconf
handlers implementation (eg: "bias-pull-up/down", "driving" and
"input-enable") for IO pins that belong to different types.
Signed-off-by: Sam Shih <sam.shih@mediatek.com>
Pinctrl design of some mediatek SoC need to access registers that
distribute in multiple memory base address. this patch introduce new
mechanism in mediatek pinctrl driver to support the chips which have
the new design.
This patch add a member 'base_calc' in pinctrl private data, and changed
original 'base' private data to an array of *iomem.
When 'base_calc' attribute is set, it will requests multiplue regs base
from the DT, if 'base_calc' attribute is not set, it only use legacy way
to request single reg resource from the DT.
Signed-off-by: Sam Shih <sam.shih@mediatek.com>
There are many pins in a SoCs, and different pin may belong
to different "io_type", For example: some pins of MT7622 belongs
to "io_type A", the other belongs to "io_type B", and pinctrl "V0"
means handle pinconf via "io_type A" or "io_type B", so SoCs that
contain "io_type A" and "io_type B" pins, use "V0" in pinctrl driver.
This patch separates the implementation of register operations
(e.g: "bias-pull-up/down", "driving" and "input-enable") into
different functions, and lets the original V0/V1
ops to call the new functions.
Signed-off-by: Sam Shih <sam.shih@mediatek.com>
Add driver supporting pin multiplexing on rk3066 platform.
Signed-off-by: Paweł Jarosz <paweljarosz3691@gmail.com>
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
A big part is the DM pinctrl driver, which allows us to get rid of quite
some custom pinmux code and make the whole port much more robust. Many
thanks to Samuel for that nice contribution! There are some more or less
cosmetic warnings about missing clocks right now, I will send the trivial
fixes for that later.
Another big chunk is the mkimage upgrade, which adds RISC-V and TOC0
(secure images) support. Both features are unused at the moment, but I
have an always-secure board that will use that once the DT lands in the
kernel.
On top of those big things we have some smaller fixes, improving the
I2C DM support, fixing some H6/H616 early clock setup and improving the
eMMC boot partition support.
The gitlab CI completed successfully, including the build test for all
161 sunxi boards. I also boot tested on a A64, A20, H3, H6, and F1C100
board. USB, SD card, eMMC, and Ethernet all work there (where applicable).
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This is the only possible mux setting for the A64's PWM peripheral.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Where multiple options were available, the one matching board.c and the
device trees was chosen.
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org>
[Andre: fixup H5 I2C1 pinmux]
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This includes UART0 and R_UART (s_uart) on all supported platforms, plus
the additional UART configurations from arch/arm/mach-sunxi/board.c.
Pin lists and mux values were taken from the Linux drivers.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
The sunxi pinctrl hardware has bias and drive control. Add driver
support for configuring those options.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
The pinmux command uses this function to display pinmux status.
Since the driver cannot map pin numbers to a list of supported
functions, only functions which are common across all pins can be
reported by name.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Implement the operations to get pin and function names, and to set the
mux for a pin. The pin count and pin names are calculated as if each
bank has the maximum number of pins. Function names are simply the index
into a list of { function name, mux value } pairs.
We assume all pins associated with a function use the same mux value for
that function. This is generally true within a group of pins on a single
port, but generally false when some peripheral can be muxed to multiple
ports. For example, A64 UART3 uses mux 3 on port D, and mux 2 on port H.
But all of the port D pins use the same mux value, and so do all of the
port H pins. This applies even when the pins for some function are not
contiguous, and when the lower-numbered mux values are unused. A good
example of both of these cases is SPI0 on most SoCs.
This strategy saves a lot of space (which is especially important for
SPL), but where the mux value for a certain function differs across
ports, it forces us to choose a single port for that function at build
time. Since almost all boards use the default (i.e. reference design)
pin muxes[1], this is unlikely to be a problem.
[1]: See commit dda9fa734f ("sunxi: Simplify MMC pinmux selection")
Signed-off-by: Samuel Holland <samuel@sholland.org>
[Andre: add comment summarising the commit message]
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Create a do-nothing driver for each sunxi pin controller variant.
Since only one driver can automatically bind to a DT node, since the
GPIO driver already requires a manual binding process, and since the
pinctrl driver needs access to some of the same information, refactor
the GPIO driver to be bound by the pinctrl driver. This commit should
cause no functional change.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This patchs add the signal description array for PWM pinctrl settings.
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Using bias-pull-up would actually cause the pin to have its pull-down
enabled. Fix this.
Original Linux patch by Sean Anderson:
https://lore.kernel.org/linux-gpio/20220209182822.640905-1-seanga2@gmail.com/
Fixes: 7224d5ccf8 ("pinctrl: Add support for Kendryte K210 FPIOA")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
