Add device tree support for the SAMA7D65 Curiosity board.
Update the Makefile to include the new device tree file.
uart6 is related to flexcom6, hence not sorted in alphabetical order.
Signed-off-by: Romain Sioen <romain.sioen@microchip.com>
Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com>
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Link: https://lore.kernel.org/r/20250107160850.120537-6-Ryan.Wanner@microchip.com
[claudiu.beznea: moved chosen node after alias for aphanumerically
sortage, added a space in front of <PIN_PD19__FLEXCOM6_IO1> for
alignment]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
This property will stop the LDO regulator from switching to 1.8V when the
MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
SDMMC interface pins in GPIO mode (PA0 - PA13).
On this board, PA10 is used as GPIO to enable the power switch controlling
USB Vbus for the USB Host. The change is needed to fix the PA10 voltage
level to 3.3V instead of 1.8V.
Fixes: 5d4c3cfb63 ("ARM: dts: at91: sama5d27_wlsom1: add SAMA5D27 wlsom1 and wlsom1-ek")
Suggested-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Tested-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20241119160107.598411-3-cristian.birsan@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
This property will stop the LDO regulator from switching to 1.8V when the
MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
SDMMC interface pins in GPIO mode (PA0 - PA13).
On this board, PA6 is used as GPIO to enable the power switch controlling
USB Vbus for the USB Host. The change is needed to fix the PA6 voltage
level to 3.3V instead of 1.8V.
Fixes: d85c4229e9 ("ARM: dts: at91: sama5d29_curiosity: Add device tree for sama5d29_curiosity board")
Suggested-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Tested-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20241119160107.598411-2-cristian.birsan@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Since these properties are common for all i2c subnodes,
move them to SoC dtsi from board dts.
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20241122080523.3941-2-mihai.sain@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
dtbs_check warnings:
leds: 'd[0-9]', 'ds[0-9]' do not match any of the regexes :
'(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
leds: 'red', 'green', 'blue' do not match any of regexes :
'(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
Rename the led sub nodes according to devicetree specification and
leds-gpio.yaml and for aks-cdu add label property and use the old node
name as value to stay stable and avoid breaking the userspace applications
that depend on those paths.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20241002123010.111028-4-andrei.simion@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Using a generic name common over different platforms and matching the
recent atmel rng binding now.
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Suggested-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20240917072710.125435-3-ada@thorsis.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
SAM9X60 and SAMA7G5 already have those labels. Add it for the other SoC
families so it can be referenced in board files.
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Link: https://lore.kernel.org/r/20240917072710.125435-2-ada@thorsis.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Add the atmel,usart-mode property to the UART nodes. This ensures
compliance with the atmel,at91-usart.yaml schema and resolves the errors
below:
serial@200: $nodename:0: 'serial@200' does not match
'^spi(@.*|-([0-9]|[1-9][0-9]+))?$'
serial@200: atmel,use-dma-rx: False schema does not allow True
serial@200: atmel,use-dma-tx: False schema does not allow True
serial@200: atmel,fifo-size: False schema does not allow [[16]]
These errors indicate that the property
atmel,usart-mode = <AT91_USART_MODE_SERIAL> is missing for
UART nodes 0, 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, and 12.
Fixes: 99c8083358 ("ARM: dts: at91: sam9x60: Add missing flexcom definitions")
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20240912093307.40488-1-andrei.simion@microchip.com
[claudiu.beznea: move the atmel,usart-mode close to vendor specific
properties to cope with DTS coding style]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
According to datasheet, Chapter 34. Clock Generator, section 34.2,
Embedded characteristics, source clock for RTT is the TD_SLCK, registered
with ID 1 by the slow clock controller driver. Fix RTT clock.
Fixes: 7540629e2f ("ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ek")
Link: https://lore.kernel.org/r/20240826165320.3068359-1-claudiu.beznea@tuxon.dev
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
The RTC and RTT peripherals use the timing domain slow clock (TD_SLCK),
sourced from the 32.768 kHz crystal oscillator or slow rc oscillator.
The previously used Monitoring domain slow clock (MD_SLCK) is sourced
from an internal RC oscillator which is most probably not precise enough
for real time clock purposes.
Fixes: 1e5f532c27 ("ARM: dts: at91: sam9x60: add device tree for soc and board")
Fixes: 5f6b33f463 ("ARM: dts: sam9x60: add rtt")
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Link: https://lore.kernel.org/r/20240821055136.6858-1-ada@thorsis.com
[claudiu.beznea: removed () around the last commit description paragraph,
removed " in front of "timing domain slow clock", described that
TD_SLCK can also be sourced from slow rc oscillator]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
The driver data specific to each pinctrl GPIO bank compatible nodes are not
the same and declaring additional compatible string as fallback has no
specific purpose, hence, removing the "atmel,at91sam9x5-gpio" compatible from
sam9x60 SoC DT.
Note: The at91 pinctrl driver uses "atmel,at91rm9200-gpio" compatible string
to find the number of active GPIO banks and identify the pinmux nodes.It
should used as a constant across all DT for GPIO node banks that uses PIO3
based pinctrl driver
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240814061315.112564-4-manikandan.m@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
The driver data specific to each pinctrl GPIO bank compatible nodes are not
the same and declaring additional compatible string as fallback has no
specific purpose, hence, removing the additional compatible string from the
pinctrl nodes in DT to comply with atmel,at91-pinctrl.txt documentation.
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240814061315.112564-3-manikandan.m@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
The pinctrl subnodes that define the pin configuration of other devices
under PIO3 pinmux controller are not simple memory mapped nodes.Ergo,
change simple-bus to simple-mfd.
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240814061315.112564-2-manikandan.m@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Align with the datasheet by adding regulator-5v which
supplies each node from the regulator using phandle to
regulator-5v through pvin[1-4]-supply and lvin-supply.
Co-developed-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20240812135231.43744-8-andrei.simion@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Align with the datasheet by adding regulator-5v which
supplies each node from the regulator using phandle to
regulator-5v through pvin[1-4]-supply and lvin-supply.
Co-developed-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20240812135231.43744-7-andrei.simion@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Align with the datasheet by adding regulator-5v which
supplies each node from the regulator using phandle to
regulator-5v through pvin[1-4]-supply and lvin-supply.
Co-developed-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20240812135231.43744-6-andrei.simion@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Align with the datasheet by adding regulator-5v which
supplies each node from the regulator using phandle to
regulator-5v through pvin[1-4]-supply and lvin-supply.
Co-developed-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20240812135231.43744-5-andrei.simion@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Align with the datasheet by adding regulator-5v which supplies
each node from the regulator using phandle to regulator-5v
through pvin[1-4]-supply and lvin-supply.
Co-developed-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20240812135231.43744-4-andrei.simion@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Bindings expect the LED node names to follow certain pattern, see
dtbs_check warnings:
at91sam9g15ek.dtb: leds: 'pb18', 'pd21' do not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Alexander Dahl <ada@thorsis.com>
Link: https://lore.kernel.org/r/20240701164952.577277-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
These properties are common for all i2c subnodes. Allows to add i2c device
nodes (like an rtc for example) in other .dts files including
sam9x60.dtsi without requiring to repeat these properties for each i2c
device again and again.
Found on a custom board after adding this in .dts:
&flx5 {
atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
status = "okay";
i2c5: i2c@600 {
pinctrl-0 = <&pinctrl_flx5_default>;
status = "okay";
pcf8523: rtc@68 {
compatible = "nxp,pcf8523";
reg = <0x68>;
};
};
};
… which created a warning like this:
[…]:236.4-17: Warning (reg_format): /ahb/apb/flexcom@f0004000/i2c@600/rtc@68:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)
[…]: Warning (pci_device_reg): Failed prerequisite 'reg_format'
[…]: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
[…]: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
[…]/linux-6.6.25/arch/arm/boot/dts/microchip/sam9x60.dtsi:283.19-299.7: Warning (i2c_bus_bridge): /ahb/apb/flexcom@f0004000/i2c@600: incorrect #address-cells for I2C bus also defined at […]:228.16-238.4
[…]/linux-6.6.25/arch/arm/boot/dts/microchip/sam9x60.dtsi:283.19-299.7: Warning (i2c_bus_bridge): /ahb/apb/flexcom@f0004000/i2c@600: incorrect #size-cells for I2C bus also defined at […]:228.16-238.4
[…]: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
[…]: Warning (i2c_bus_reg): Failed prerequisite 'i2c_bus_bridge'
[…]: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
[…]:234.19-237.5: Warning (avoid_default_addr_size): /ahb/apb/flexcom@f0004000/i2c@600/rtc@68: Relying on default #address-cells value
[…]:234.19-237.5: Warning (avoid_default_addr_size): /ahb/apb/flexcom@f0004000/i2c@600/rtc@68: Relying on default #size-cells value
[…]: Warning (avoid_unnecessary_addr_size): Failed prerequisite 'avoid_default_addr_size'
[…]: Warning (unique_unit_address): Failed prerequisite 'avoid_default_addr_size'
This probably should have been done with commit 84f23f3284 ("ARM: dts:
at91: sam9x60: move flexcom definitions") already, where those
address-cells and size-cells properties were left in the board .dts
files instead of moving them to the dtsi.
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20240528153109.439407-1-ada@thorsis.com
[claudiu.beznea: adjusted commit message as the properties are not
required anymore]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
The main boot sequence for Microchip AT91 devices is one of the
following:
1/ ROM BOOT -> AT91Bootstrap -> U-Boot -> Linux Kernel
2/ ROM BOOT -> AT91Bootstrap -> Linux Kernel
For case 1/ U-Boot is the stage where the Ethernet MAC addresses are set.
For case 2/ where U-Boot is skipped the Ethernet MAC addresses need to
be configured in Linux. For this add EEPROMs and nvmem-layout to describe
EUI48 MAC address regions.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
[andrei.simion@microchip.com: Add nvmem-layout to describe eui48 mac
region. Align compatible name with datasheet. Reword commit message.]
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
[claudiu.beznea: adjusted the new commit message]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20240703084704.197697-3-andrei.simion@microchip.com
By checking the pmic node with microchip,mcp16502.yaml#
'regulator-suspend-voltage' does not match any of the
regexes 'pinctrl-[0-9]+' from schema microchip,mcp16502.yaml#
which inherits regulator.yaml#. So replace regulator-suspend-voltage
with regulator-suspend-microvolt to avoid the inconsitency.
Fixes: ebd6591f8d ("ARM: dts: microchip: sama7g54_curiosity: Add initial device tree of the board")
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20240404123824.19182-3-andrei.simion@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
By checking the pmic node with microchip,mcp16502.yaml#
'regulator-suspend-voltage' does not match any of the
regexes 'pinctrl-[0-9]+' from schema microchip,mcp16502.yaml#
which inherits regulator.yaml#. So replace regulator-suspend-voltage
with regulator-suspend-microvolt to avoid the inconsitency.
Fixes: 85b1304b9d ("ARM: dts: at91: sama7g5ek: set regulator voltages for standby state")
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20240404123824.19182-2-andrei.simion@microchip.com
[claudiu.beznea: added a dot before starting the last sentence in commit
description]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Align dmas to the opening '<' to comply with the dts coding style,
indentation section, point 3: "For arrays spanning across lines, it is
preferred to align the continued entries with opening < from the first
line."
Link: https://lore.kernel.org/r/20240218151353.3612621-3-claudiu.beznea@tuxon.dev
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Align dmas to the opening '<' to comply with the dts coding style,
indentation section, point 3: "For arrays spanning across lines, it is
preferred to align the continued entries with opening < from the first
line."
Link: https://lore.kernel.org/r/20240218151353.3612621-2-claudiu.beznea@tuxon.dev
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Add flexcom 10 node for usage on the SAMA7G54 Curiosity board.
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Link: https://lore.kernel.org/r/20240215091524.14732-3-mihai.sain@microchip.com
[claudiu.beznea: align dmas to the opening '<']
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
The AT91SAM9G25-based GARDENA smart Gateway uses USART3 (ttyS1) to
communicate (over PPP, at 115200 baud) with the radio module.
We have been experiencing packet loss and seeing errors on the ppp0
interface. Enabling DMA for the serial interface resolves the issues.
Co-developed-by: Michael Zimmermann <michael.zimmermann@grandcentrix.net>
Signed-off-by: Michael Zimmermann <michael.zimmermann@grandcentrix.net>
Signed-off-by: Ezra Buehler <ezra.buehler@husqvarnagroup.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20240102161839.702625-3-ezra.buehler@husqvarna.com
[claudiu.beznea: s/Co-Developed-by/Co-developed-by to make checkpatch.pl
happy, s/at91/microchip in commit title]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
The UART controller does not seem to be fast enough to receive data (at
115200 baud) without dropping bytes when DMA is disabled.
This has often been noticed when pasting SSH keys into the serial
console (ttyS0). Only after multiple tries, the long strings would be
successfully transferred without missing characters.
Co-developed-by: Michael Zimmermann <michael.zimmermann@grandcentrix.net>
Signed-off-by: Michael Zimmermann <michael.zimmermann@grandcentrix.net>
Signed-off-by: Ezra Buehler <ezra.buehler@husqvarnagroup.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20240102161839.702625-2-ezra.buehler@husqvarna.com
[claudiu.beznea: s/Co-Developed-by/Co-developed-by to make checkpatch.pl
happy, s/at91/microchip in commit title]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
On board the sdmmc0 interface is wired to a SD Card socket.
According with mmc-controller bindings, the mmc-ddr-3_3v property
is used for eMMC devices to enable high-speed DDR mode (3.3V I/O).
Remove the mmc-ddr-3_3v property from sdmmc0 node.
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20231211070345.2792-1-mihai.sain@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
On board the sdmmc0 interface is wired to a SD Card socket.
According with mmc-controller bindings, the mmc-ddr-3_3v property
is used for eMMC devices to enable high-speed DDR mode (3.3V I/O).
Remove the mmc-ddr-3_3v property from sdmmc0 node.
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Link: https://lore.kernel.org/r/20231204072537.2991-1-mihai.sain@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Add interrupt support for ethernet phy subnode.
Add PB8 definition to macb0 pinctrl.
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Link: https://lore.kernel.org/r/20231109131149.46397-3-mihai.sain@microchip.com
[claudiu.beznea: s/at91/microchip in commit title to match dts directory]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Add interrupt support for ethernet phy subnode.
Add PB8 definition to macb0 pinctrl.
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Link: https://lore.kernel.org/r/20231109131149.46397-2-mihai.sain@microchip.com
[claudiu.beznea: s/at91/microchip in commit title to match dts directory]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
atmel,rtt-rtc-time-reg is a mandatory property and encodes the GPBR
register used to store the time base when the RTT is used as an RTC.
Align the RTT with what's currently done for sam9x60ek and sama7g5ek,
and enable it by default even if RTC is also enabled.
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
[nicolas.ferre@microchip.com: adapt to newer kernel]
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20230928143644.208515-1-nicolas.ferre@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Fix typo in DT name for TDES node.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20230906135838.59247-1-nicolas.ferre@microchip.com
[claudiu.beznea: removed fixes tag as tdes node is not referenced
anywhere by its node name]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Romain Sioen
Ryan Wanner
Mihai Sain
Cristian Birsan
Varshini Rajendran
Andrei Simion
Alexander Dahl
Claudiu Beznea
Manikandan Muralidharan
Krzysztof Kozlowski
Claudiu Beznea
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Ezra Buehler
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