Enable internal bias pull-ups on the SoC-side I2C buses that do not have
external pull resistors populated on the SoM. This ensures proper
default line levels.
Cc: stable@vger.kernel.org
Fixes: 316b80246b ("arm64: dts: ti: add verdin am62")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20250528110741.262336-1-ghidoliemanuele@gmail.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Add a label to ti-ads1015 node to make it easier to reference it
from other nodes.
Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240924120044.130913-3-francesco@dolcini.it
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
The power switch used to power the SD card interface might have
more than 2ms turn-on time, increase the startup delay to 20ms to
prevent failures.
Fixes: 316b80246b ("arm64: dts: ti: add verdin am62")
Cc: stable@vger.kernel.org
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20241024130628.49650-1-francesco@dolcini.it
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Fix Verdin AM62 on-SOM ADC compatible. Currently the hardware is not
correctly described in the DT, use the correct TI TLA2024 compatible that
matches what is assembled on the board.
The "ti,tla2024" compatible was introduced in Linux v5.19 and Verdin AM62
support was introduced in Linux v6.5.
The new DTB will not work on kernel older than v5.19, but this seems
unlikely to happen. U-Boot does not use the ADC node and a known Android 14
out-of-tree port uses a Linux Kernel 6.1.
With that said, despite this being a breaking change, it seems fair to
to not expect any regression because of it.
Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
Link: https://lore.kernel.org/r/20241015113334.246110-1-jpaulo.silvagoncalves@gmail.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This reverts commit 3935fbc87d.
CTRL_SLEEP_MOCI# is a signal that is defined for all the SoM
implementing the Verdin family specification, this signal is supposed to
control the power enable in the carrier board when the system is in deep
sleep mode. However this is not possible with Texas Instruments AM62
SoC, IOs output buffer is disabled in deep sleep and IOs are in
tri-state mode.
Given that we cannot properly control this pin, force it to be always
high to minimize potential issues.
Fixes: 3935fbc87d ("arm64: dts: ti: k3-am62-verdin-dahlia: support sleep-moci")
Cc: <stable@vger.kernel.org>
Link: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1361669/am625-gpio-output-state-in-deep-sleep/5244802
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240731054804.6061-1-francesco@dolcini.it
Signed-off-by: Nishanth Menon <nm@ti.com>
McASP AFIFOs are not necessary with UDMA-P/BCDMA as there is buffering
on the DMA IP. Drop these for better audio latency.
Fixes: 316b80246b ("arm64: dts: ti: add verdin am62")
Acked-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20240606-mcasp_fifo_drop-v2-5-8c317dabdd0a@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
The Verdin family has a signal called sleep-moci which can be used to
turn off peripherals on the carrier board when the SoM goes into
suspend. So far we have hogged this signal, which means the peripherals
are always on and it is not possible to add peripherals that depend on
the sleep-moci to be on. With this change, we replace the hog with a
regulator so that peripherals can add their own regulators that use the
same gpio. Carrier boards that allow peripherals to be powered off in
suspend can disable this regulator and implement their own regulator to
control the sleep-moci.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240301084901.16656-2-eichest@gmail.com
Signed-off-by: Nishanth Menon <nm@ti.com>
Add a GPIO hog to release PCIe reset on the carrier board, this is
required to use M.2 or mPCIe cards.
Verdin AM62 does not have any PCIe interface, however the Verdin family
has PCIe and normally an M.2 or mPCIe slot is available in the carrier
board that can be used with cards that use only the USB interface toward
the host CPU, for example cellular network modem.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240327182801.5997-3-francesco@dolcini.it
Signed-off-by: Nishanth Menon <nm@ti.com>
TI SDHCI instance has a hardware debounce timer of 1 second as described
in commit 7ca0f166f5 ("mmc: sdhci_am654: Add workaround for card detect
debounce timer"), because of this the boot time increases of up to 1
second.
Workaround the issue the same way that is done on
arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts, using the SD1 CD as
GPIO.
Suggested-by: Nishanth Menon <nm@ti.com>
Reported-by: João Paulo Silva Gonçalves <joao.goncalves@toradex.com>
Closes: https://lore.kernel.org/all/0e81af80de3d55e72f79af83fa5db87f5c9938f8.camel@toradex.com/
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240325083340.89568-1-francesco@dolcini.it
Signed-off-by: Nishanth Menon <nm@ti.com>
Remove DLL properties which are not applicable for soft PHYs
since these PHYs do not have a DLL to enable.
Acked-by: Francesco Dolcini <francesco.dolcini@toradex.com> # Verdin AM62
Signed-off-by: Judith Mendez <jm@ti.com>
Tested-by: Wadim Egorov <w.egorov@phytec.de>
Link: https://lore.kernel.org/r/20240213235701.2438513-7-jm@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Set VDD_CORE minimum voltage to 0.75V, TI AM62 can run at either 0.75V
or 0.85V depending on the actual speed grade and on the maximum
configured speed (1.4GHz frequency requires 0.85V).
The actual value is programmed into the PMIC EEPROM during manufacturing
(according to the SOC speed grade) and this ensure that both the voltage
values are valid and therefore the OS will not overwrite the value
programmed into the PMIC.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240213155622.18309-1-francesco@dolcini.it
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Add support for Verdin USB1 interface, implements role switch
functionality using "gpio-usb-b-connector", VBUS is also now
controlled with "regulator-fixed" using a standard GPIO.
Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240209130106.38739-1-andrejs.cainikovs@gmail.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Verdin SPI_1 interface has a dedicated hardware controlled chip select
that is currently configured in the same pinctrl group as MISO/MOSI/CLK,
however it is possible that it can be used only as a standard GPIO be it
a chip select or not.
To maximize flexibility and avoid duplication in the carrier board dts
files move the SPI_1 CS in a dedicated pinctrl and also adds an
additional pinctrl to simplify using SPI_1 CS as a GPIO.
Signed-off-by: Joao Paulo Goncalves <joao.goncalves@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20231205184605.35225-2-francesco@dolcini.it
Signed-off-by: Nishanth Menon <nm@ti.com>
Keep the DPI to MIPI-DSI bridge disabled in the SoM dtsi file.
The display chain is not wholly described in the device tree file, on
Verdin product family the displays are additional accessories that are
configured/enabled using DT overlays.
With this enabled we have issues when a display is enabled on
TIDSS port1 (LVDS) and port0 (DSI) is not used.
Fixes: 9e77200356 ("arm64: dts: ti: verdin-am62: Add DSI display support")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20230922123003.25002-1-francesco@dolcini.it
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Add MIPI-DSI support to Verdin AM62.
Verdin AM62 has a MIPI DSI interface on the edge connector, this is
provided with a Toshiba TC358778 DPI to MIPI-DSI bridge connected to the
DSS DPI port with a 18-bit width parallel bus.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20230812191123.14779-1-francesco@dolcini.it
Signed-off-by: Nishanth Menon <nm@ti.com>
Add Verdin CAN_2 (TI AM62 MCU_MCAN0) and enable it on the Yavia,
Dahlia and Verdin Development board.
Signed-off-by: Hiago De Franco <hiago.franco@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20230802073635.11290-3-francesco@dolcini.it
Signed-off-by: Nishanth Menon <nm@ti.com>
Prepare for pinctrl-single yaml binding and unify pin group node names.
Let's standardize on pin group node naming ending in -pins. As we don't
necessarily have a SoC specific compatible property for pinctrl-single.
I'd rather not add a pattern match for pins somewhere in the name for all
the users.
Trying to add matches for pins-default will be futile as on the earlier
SoCs we've already seen names like pins-sleep, pins-idle, pins-off and so
on that would need to be matched.
And as the node is a pin group, let's prefer to use naming -pins rather
than -pin as more pins may need to be added to the pin group later on.
Signed-off-by: Tony Lindgren <tony@atomide.com>
[vigneshr@ti.com: Rebase onto latest ti/next and extend to new nodes]
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
