Drop the hub_5v regulator which controls the HUB Reset line with GPIOH_4 which
is already controlled by a GPIO HOG.
Until we can properly describe how to control USB HUBs reset lines, keeping
the GPIO HOG is an acceptable solution we use on multiple boards.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20210607065435.577334-8-narmstrong@baylibre.com
Take a pass at cleaning up a bunch of warnings
from 'make dtbs_check' that have crept in.
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210421204833.18523-1-khilman@baylibre.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Convert the ODROID-C4 dts to meson-sm1-odroid.dtsi and C4 board dts in
preparation for adding additional C4 family boards.
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20210202021021.11068-4-christianshewitt@gmail.com
For the proper reboot Odroid-C4 board requires to switch TFLASH_VDD_EN
pin to the high impedance mode, otherwise the board is stuck in the
middle of loading early stages of the bootloader from SD card.
This can be achieved by using the OPEN_DRAIN flag instead of the
ACTIVE_HIGH, what will leave the pin in input mode to achieve high state
(pin has the pull-up) and solve the issue.
Suggested-by: Neil Armstrong <narmstrong@baylibre.com>
Fixes: 326e57518b ("arm64: dts: meson-sm1: add support for Hardkernel ODROID-C4")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20210122055218.27241-1-m.szyprowski@samsung.com
Add the board support for the Hardkernel Odroid-C4 single board computer.
The Odroid-C4 is the Odroid-C2 successor with same form factor, but using
a modern Amlogic S905X3 (SM1) SoC and 4x USB3 ports.
Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200506080702.6645-3-narmstrong@baylibre.com
