Device-tree updates for arm64 platforms. Just as with 32-bit, a bunch of smaller
changes, but also some new platforms that are worth mentioning:
* Rockchip RK3399 platforms for Chromebooks, including Samsung Chromebook
Plus (Kevin)
* Orange Pi PC2 (Allwinner H5)
* Freescale LS2088A and LS1088A SoCs
* Expanded support for Nvidia Tegra186 (and Jetson TX2)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=q3Ix
-----END PGP SIGNATURE-----
Merge tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM 64-bit DT updates from Olof Johansson:
"Device-tree updates for arm64 platforms. Just as with 32-bit, a bunch
of smaller changes, but also some new platforms that are worth
mentioning:
- Rockchip RK3399 platforms for Chromebooks, including Samsung
Chromebook Plus (Kevin)
- Orange Pi PC2 (Allwinner H5)
- Freescale LS2088A and LS1088A SoCs
- Expanded support for Nvidia Tegra186 (and Jetson TX2)"
* tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (180 commits)
arm64: dts: Add basic DT to support Spreadtrum's SP9860G
arm64: dts: exynos: Use - instead of @ for DT OPP entries
arm64: dts: exynos: Add support for s6e3hf2 panel device on TM2e board
arm64: dts: juno: add information about L1 and L2 caches
arm64: dts: juno: fix few unit address format warnings
arm64: marvell: dts: enable the crypto engine on the Armada 8040 DB
arm64: marvell: dts: enable the crypto engine on the Armada 7040 DB
arm64: marvell: dts: add crypto engine description for 7k/8k
arm64: dts: marvell: add sdhci support for Armada 7K/8K
arm64: dts: marvell: add eMMC support for Armada 37xx
arm64: dts: hisi: add pinctrl dtsi file for HiKey960 development board
arm64: dts: hisi: add drive strength levels of the pins for Hi3660 SoC
arm64: dts: hisi: enable the NIC and SAS for the hip07-d05 board
arm64: dts: hisi: add SAS nodes for the hip07 SoC
arm64: dts: hisi: add RoCE nodes for the hip07 SoC
arm64: dts: hisi: add network related nodes for the hip07 SoC
arm64: dts: hisi: add mbigen nodes for the hip07 SoC
arm64: dts: rockchip: fix the memory size of PX5 Evaluation board
arm64: dts: hisilicon: add dts files for hi3798cv200-poplar board
dt-bindings: arm: hisilicon: add bindings for hi3798cv200 SoC and Poplar board
...
The HDMI modes needs more CMA memory to be reserved at boot-time.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Now that 3adbf34273 "iio: adc: add a driver for the SAR ADC found in
Amlogic Meson SoCs" has added support for the ADC, let's enable it
on Odroid C2.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add EE and AO domains pins for the spdif output to the gxl device tree.
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add EE and AO domains pins for the i2s output clocks and data the gxl
device tree
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add EE and AO domains pins for the spdif output to the gxbb device tree.
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add EE and AO domains pins for the i2s output clocks and data to the gxbb
device tree.
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The ODroid-C2 on-board USB Hub needs to to have it's reset signal set to
high level in order to be enumerated by the USB Host Controller.
But this management must be part of the currently in-development Generic
Power Sequence patch that will allow a USB Controller driver to start and stop
a power sequence associated to the USB Bus.
In the meantime, a simple USB Hog will work to enable the USB Hub.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The same Mali-450 MP3 GPU is present in the GXBB and GXL SoCs.
The node is simply added in the meson-gxbb.dtsi file.
For GXL, since a lot is shared with the GXM that has a Mali-T820 IP, this
patch adds a new meson-gxl-mali.dtsi and is included in the SoC specific
dtsi files.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[khilman: s/MALI/Mali in changelog]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add pinctrl pins nodes following the additions of missing pins in the pinctrl
driver.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Prepend the compatible strings with a GX generic name in nodes compatible with
the GXBB HW and keep the same scheme as other nodes.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Since we know the GXBB and GXL/GXM share more hardware, we can safely move
the remaining peripheral nodes present in the GXBB dtsi to the common GX dtsi.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The Khadas VIM series consists of two boards which are almost
identical:
They are both using the same GXL S905X SoC, 100Mbit/s ethernet
(through the SoC-internal PHY), 2GB DDR3 memory, a micro-SD card slot,
onboard eMMC, Broadcom based SDIO WIFI, 2x USB A and 1x USB Type-C (the
latter with OTG support). The red LED is driven by PWM_AO_B (which
allows dimming), while the blue LED is managed by the firmware.
The differences are:
- the VIM Pro has a 16GB eMMC module, while the VIM only has 8GB
- the VIM Pro uses an AP6255 a/b/g/n/ac WIFI module, while the VIM comes
with an AP6212 b/g/n SDIO WIFI module
(the Vim uses an 8GB eMMC module, while
The boards are based on Amlogic's GXL S905X P212 reference design, which
is why most of the functionality (all MMC controllers and power
sequences, IR remote input, the main UART, ADC and ethernet) is simply
inherited from meson-gxl-s905x-p212.dtsi.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This adds the new DT nodes for the missing PWM pins in the EE and AO
domain.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The wrong GPIO line was provided here.
Fixes: ef8d2ffedf ("ARM64: dts: meson-gxbb: add MMC support")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This patch describes the GPIO lines usage on the Odroid-C2 board.
This is useful in the debugfs gpio file and using the cdev gpio API.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This patch adds support for the P230 and Q200 ADC laddered button and
GPIO button.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The Amlogic P212 reference design is used by other devices as well, such
as (for example) the Khadas VIM boards. Thus this patch adds and moves
all common entries from meson-gxl-s905x-p212.dts to a new, separate
meson-gxl-s905x-p212.dtsi (which can be re-used on boards such as the
Khadas VIM).
Support for all boards based on the P212 reference design includes:
- enabling IR support
- enabling the SAR ADC (SARADC_CH1 is connected to a resistor which
indicates the hardware revision, a similar design is found on the
Khadas VIM boards)
- all MMC controllers (which means that SDIO wifi, the SD card and the
eMMC are now supported)
- pwm_ef as dependency for the SDIO wifi modules
- uart_A which is connected to the bluetooth module (the bluetooth
module itself is not enabled yet due to missing devicetree bindings
for the Broadcom serial bluetooth devices)
- uart_AO is moved to the .dtsi (as all known devices use it as their
boot-console)
Specific to the P212 board:
- this also enables the CVBS connector (which is not available on the
Khadas VIM boards for example)
- Realtek based SDIO wifi (instead of Broadcom which most other devices
use)
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This patch adds support for the HwaCom AmazeTV set-top-box. The
hardware configuration is really similar to the other GXL boards but
for this hardware we need to limit the max-frequency of the eMMC to
have it working.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The ethmac node has to be configured for each board due to different
pinctrl nodes for RGMII/RMII. Thus the phy-mode should be specified at
the same place (= in the board .dts), making it easier to read the board
.dts file (because the phy-mode is stated explicitly, without requiring
developers to read all "parent" .dtsi as well).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This adds the amlogic,tx-delay-ns property with the old (hardcoded)
default value of 2ns to all boards which are using an RGMII ethernet
PHY.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Amlogic's own .dts specifies that the P201 board uses a RMII PHY (with
the reset GPIO being GPIOZ_14).
However our P201 board .dts simply inherits the phy-mode setting from
from meson-gx.dtsi where it defaults to RGMII mode.
Remove all ethernet settings from meson-gxbb-p20x.dtsi as it only
specifies the RGMII pins which are only valid for the P200 board.
Instead we add the ethmac node to the meson-gxbb-p201.dts and configure
the pinctrl property and the phy-mode for an RMII PHY.
An MDIO node (which would also specify the PHY) is not added since we
don't know which PHY is being used (and thus which PHY address would
have to be used).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This resets the ethernet PHY during boot to get the PHY into a "clean"
state.
While here also specify the phy-handle of the ethmac node to make the
PHY configuration similar to the one we have on GXL devices. This will
allow us to specify OF-properties for the PHY itself.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This resets the ethernet PHY during boot to get the PHY into a "clean"
state.
While here also specify the phy-handle of the ethmac node to make the
PHY configuration similar to the one we have on GXL devices. This will
allow us to specify OF-properties for the PHY itself.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This resets the ethernet PHY during boot to get the PHY into a "clean"
state.
While here also specify the phy-handle of the ethmac node to make the
PHY configuration similar to the one we have on GXL devices. This will
allow us to specify OF-properties for the PHY itself.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This resets the ethernet PHY during boot to get the PHY into a "clean"
state.
While here also specify the phy-handle of the ethmac node to make the
PHY configuration similar to the one we have on GXL devices. This will
allow us to specify OF-properties for the PHY itself.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This resets the ethernet PHY during boot to get the PHY into a "clean"
state.
While here also specify the phy-handle of the ethmac node to make the
PHY configuration similar to the one we have on GXL devices. This will
allow us to specify OF-properties for the PHY itself.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This resets the ethernet PHY during boot to get the PHY into a "clean"
state. While here also explicitly specify the phy-mode instead of
relying on the default-value from meson-gx.dtsi.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add the 5 buttons connected to a resistor laddered matrix and sampled
by the SAR ADC channel 0.
Only the p200 board has these buttons, the P201 doesn't.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add the SAR ADC to meson-gxbb.dtsi and meson-gxl.dtsi. GXBB provides a
10-bit ADC while GXL and GXM provide a 12-bit ADC.
Some boards use resistor ladder buttons connected through one of the ADC
channels. On newer devices (GXL and GXM) some boards use pull-ups/downs
to change the resistance (and thus the ADC value) on one of the ADC
channels to indicate the board revision.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This adds the pwm_ao_b pin to allow boards which have an LED connected
to GPIOAO_9 to use the leds-pwm driver (by activating the pwm_AO_ab node
and passing the pwm_ao_b_pin pinctrl-reference).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
All Meson GX SoCs (GXBB, GXL and GXM) have a PWM controller within the
AO domain. When one of the board's LEDs is connected to one of the AO
PWM pins then this can be used to dim that LED (when the leds-pwm driver
is used).
Add the pwm_AO_ab to allow such devices to use the leds-pwm driver.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The Amlogic Meson GXBB/GXL/GXM secure monitor uses part of the memory space,
this patch adds these reserved zones.
Without such reserved memory zones, running the following stress command :
$ stress-ng --vm 16 --vm-bytes 128M --timeout 10s
multiple times:
Could lead to the following kernel crashes :
[ 46.937975] Bad mode in Error handler detected on CPU1, code 0xbf000000 -- SError
...
[ 47.058536] Internal error: Attempting to execute userspace memory: 8600000f [#3] PREEMPT SMP
...
Instead of the OOM killer.
Fixes: 4f24eda840 ("ARM64: dts: Prepare configs for Amlogic Meson GXBaby")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
[khilman: added Fixes tag, added _reserved and unit addresses]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
OdroidC2 GbE link breaks under heavy tx transfer. This happens even if the
MAC does not enable Energy Efficient Ethernet (No Low Power state Idle on
the Tx path). The problem seems to come from the phy Rx path, entering the
LPI state.
Disabling EEE advertisement on the phy prevent this feature to be
negociated with the link partner and solve the issue.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Since the GXL family has S905X and S905D SoCs, we're keeping the SoC
name in the DTS filename for clarity. Rename this file accordingly to
be consistent with the rest of the GXL DTS files.
Cc: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Adds support for the WeTek Hub and Play2 boards.
The Hub is an extremely small IPTv Set-Top-Box and the Play2 is a more
traditionnal Satellite or Terrestrial and IPTv Set-Top-Box.
Both are based on the p200 Reference Design and out-of-tree support is
based on LibreELEC kernel at [1].
[1] https://github.com/wetek-enigma/linux-amlogic
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
In order to keep consistency naming with the Nexbox A1 DTS file, remove the
S912 SoC name in the GXM DT files.
Suggested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add pinctrl nodes for HDMI HPD and DDC pins modes for Amlogic Meson GXL
and GXBB SoCs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
There is one blue LED on the front of the device. Keep it lit and
configure it as panic indicator.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This adds pinctrl group nodes for the CTS and RTS pins of each serial
controller. This makes it possible to enable the CTS and RTS pins which
are controlled by the serial controller hardware (through the meson_uart
driver).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This adds the missing node for the uart_AO_B port to the meson-gx.dtsi
(as this is supported by GXBB, GXL and GXM) along with the required
pinctrl pins. This is required as some boards are using it (the boards
from the Khadas VIM series for example have it exposed on the pin
headers).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The current hardware is not able to run with all cores enabled at a
cluster frequency superior at 1536MHz.
But the currently shipped u-boot for the platform still reports an OPP
table with possible DVFS frequency up to 2GHz, and will not change since
the off-tree linux tree supports limiting the OPPs with a kernel parameter.
A recent u-boot change reports the boot-time DVFS around 100MHz and
the default performance cpufreq governor sets the maximum frequency.
Previous version of u-boot reported to be already at the max OPP and
left the OPP as is.
Nevertheless, other governors like ondemand could setup the max frequency
and make the system crash.
This patch disables the DVFS clock and disables cpufreq.
Fixes: 70db166a2b ("ARM64: dts: meson-gxbb: Add SCPI with cpufreq & sensors Nodes")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This adds the SCPI DVFS clock index and configures the CPU cores
accordingly.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
SCPI and SRAM are identical on GXBB and GXL. Moving the corresponding
nodes to meson-gx adds support for the thermal sensor on GXL based
devices.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
[khilman: add scpi_clocks label]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Linus Torvalds