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This adds SD card sleep state and relevant pinmux configuration
for Apalis iMX8 boards. Pins for sleep state are configured for
pull-disable, except card detect pin which is always pull-up.
Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>
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Keep +3.3V pull-ups interface by default in imx8-apalis-v1.1.dtsi
SD card interface setting per board device tree:
imx8-apalis-eval.dtsi +3.3V pull-ups
imx8-apalis-ixora-v1.1.dtsi +3.3V pull-ups
imx8-apalis-ixora-v1.2.dtsi +1.8V signaling, UHS capable
Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
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Despite this being present on the hardware, remove it from the
device tree.
If this is present then the fec does power-off the regulator when going
into suspend. This leads to a non working phy after resume due to the
reset line that is not triggered. We try to fix this upstream but this
seems to become a bigger task so introduce this intermediate solution
of just removing the regulator.
According to the KSZ9131 datasheet, the power-consumption in software
power-down is about 26mW.
Related-to: ELB-4251
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
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In order to prevent backfeeding we have a sleep-state of our pins.
Currently the phy-reset is put to open-drain input, High-Z and
pull-down. This causes a pull-up on hardware and the configured
pull-down to work against each other and causing some strange voltage
level.
Leave the phy-reset signal configured as push-pull and pull-up
as the reset also needs to be high during runtime suspend.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
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It is considered legacy, that the fec resets the phy. Let the
phylib handle this reset.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
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&pcie_sata_refclk_gate is used to drive the clock to the PCIe internal IP
which is in turn needed to communicate with the Wi-fi module. Hence if
&pcie_wifi_refclk_gate is being needed also &pcie_sata_refclk_gate should be
enabled to prevent a situation where the SoC input is left without a clock.
This was reintroduced with
(Revert "ARM64: dts: apalis-imx8: leave pcie/sata clk enabled")
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
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Apalis Mezzanine LVDS has to disable gpio_fan node,
since it sharing GPIO3.28 for LVDS backlight
PWM_BKL1 signal.
Provide gpio_fan alias to disable this node in
Mezzanine LVDS overlay.
Related-to: ELB-4192
Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
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Fix UHS 1v8 mode support for Apalis iMX8 board enabling complete USDHC
functionality on the SoM dtsi file, but disable 1.8V card voltage for
Apalis Evaluation board and Ixora 1.1 where pull-up to 3.3V are present.
Enable usdhc pinctrl definition for high speed mode on Ixora 1.2 dts.
With these changes UHS104 is working fine on Ixora 1.2.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Fixes: 17be987ed70b ("ARM64: dts: apalis-imx8: use non-uhs sd-mode by default")
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Change name of optional Apalis CAN-FD interface
Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
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This reverts commit 75e357e5be10c9f3e76c5061dc999e54d6ffa893.
By this commit, the WiFi instability was fixed, however, the
SATA interface was completely disabled. For sure it helped,
but we still need SATA.
Related-to: ELB-3534
Signed-off-by: Oleksii Bidnichenko <oleksii.bidnichenko@toradex.com>
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Apalis Evaluation board supports CAN3 interface on the
Mezzanine board. Provide related iomux setting for flexcan3
- GPIO5 (MXM Pin 11) for FLEXCAN2_RX,
- GPIO6 (MXM Pin 13) for FLEXCAN2_TX.
Related-to: ELB-2578
Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
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remove clock gate that dynamically enabled disabled the sata clock also used
for PCIe clock input on the SoC.
It turned out that this approach leads to disable this clock during the boot
process which in turn leads to some cases where wifi does not work after
boot.
Related-to: ELB-3534
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
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Resume from freeze state generated non-assigned gpio interrupt
from the port in S0/S3 mode. Wakeup-source in gpio-keys
doesn’t really work for Apalis imx8qxp and Apalis imx8qm.
These targets should perform wakeup by the means of pad-wakeup
(see CONFIG_GPIO_MXC_PAD_WAKEUP implemented in gpio-mxc driver).
Kernel trace can be easily reproduced with the following scenario:
- echo freeze > /sys/power/state
- Wake the system up connecting MXM3_37 to GND.
[ 141.232366] [<ffff0000084be898>] mx3_gpio_irq_handler+0x38/0xe8
[ 141.238372] [<ffff00000811783c>] generic_handle_irq+0x24/0x38
[ 141.244203] [<ffff000008117ea8>] __handle_domain_irq+0x60/0xb8
[ 141.250122] [<ffff00000808194c>] gic_handle_irq+0x7c/0x178
[ 141.232366] [<ffff0000084be898>] mx3_gpio_irq_handler+0x38/0xe8
[ 141.238372] [<ffff00000811783c>] generic_handle_irq+0x24/0x38
[ 141.244203] [<ffff000008117ea8>] __handle_domain_irq+0x60/0xb8
[ 141.346337] [<ffff000008083230>] el1_irq+0xb0/0x124
[ 141.351300] [<ffff000008085770>] arch_cpu_idle+0x10/0x18
[ 141.356698] [<ffff000008109f94>] do_idle+0x1ac/0x1e0
[ 141.361748] [<ffff00000810a168>] cpu_startup_entry+0x20/0x28
[ 141.367495] [<ffff000008dbb3a8>] rest_init+0xd0/0xdc
[ 141.372545] [<ffff0000093f0b3c>] start_kernel+0x390/0x3a4
Drop gpio-keys support for these targets and keep only pad-wakeup configured
for resume operations. More information can be found on NXP community link
https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/How-to-add-iMX8QXP-PAD-GPIO-Wakeup/ta-p/1120559?attachment-id=32640
Related-to: ELB-1408
Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
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LDO4 is not turning off in suspend, since SCFW is not getting PM message
from regulator to switch LDO4 off during suspend.
Add "simple-sm-bus" compatible regulator node for SCFW.
Create reg_fec_supply regulator to specify as phy-supply for FEC1
Related-to: ELB-3523
Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
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Use the kernel config to setup the continguous memory allocator rather
than having this settings in the device tree. (Note that an existing
node in the device tree takes precedence.)
Related-to: ELB-4019
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
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By default the Apalis Carrier Boards do not support UHS modes. So use
high-speed mode by default but leave a note and code prepared for UHS usage.
Related-to: ELB-3867
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
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There is an additional pinctrl-names property that doesn't contain
settings for 100/200MHz pingroups, which prevents the eMMC from
working in the proper HS400 mode. Remove the mistakenly duplicated
property.
Fixes: 2e973865d3ef ("arm64: dts: apalis-imx8: separate common module part")
Related-to: ELB-3408
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
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No need to mix delays on the FEC side and on the PHY side for PHY
KSZ9131. Setup both rxc/txc delays on the PHY side.
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
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The HDMI interface and all related stuff turn on in an overlay.
Keep them disabled in the main devicetree.
Also remove sound-hdmi-arc node there is no wired sound input pins
on our Toradex boards.
Related-to: ELB-3395
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
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Looks like from the very beginning we were missing a proper pinmuxing
for the active state of the HSIC data pin!
Settings taken from discussion on NXP's public community forum:
https://community.nxp.com/t5/i-MX-Processors/i-MX-8QuadMax-USB-HSIC-Functionality/m-p/1228662/highlight/true#M169217
Fixes: 321682bbb785 ("apalis-imx8qm: add USB HSIC support")
Related-to: ELB-3228
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
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lpuart2 is the only UART where DMA request works and linux tries to use
a DMA. However this DMA does not work and output hangs, disbling the DMA
works for now.
This change was originally introduced in commit
1a8badaa585de ARM64: dts: apalis-imx8: disable dma for lpuart2
but lost when doing the devicetree-split.
Fixes: 2715972aadc8f arm64: dts: apalis-imx8: separate common module pa
Related-to: ELB-3178
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
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The VPU subsystem uses hardware Messaging Units (MU) for inter processor
communication with the controlling OS. The driver for the MU is implemented
as a Linux mailbox.
Enable the VPU MU in the device-tree.
Related-to: ELB-3196
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
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Apalis iMX8QM and iMX8QP are almost the same. Separate the common part
of device tree to use it for both these modules.
Related-to: ELB-3036
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
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