These H3 boards all expose UART1-3 on their expansion header. Since
other functions can be muxed to these pins, they are explicitly
disabled. To enable them, one could use DT overlays or U-boot commands:
=> fdt set /soc/serial@01c28c00 status okay
Signed-off-by: Jorik Jonker <jorik@kippendief.biz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The Orange Pi PC is an SBC based on the Allwinner H3 SoC with a uSD slot,
3 USB ports directly from the SoC, a 10/100M ethernet port using the
SoC's integrated PHY, USB OTG, HDMI, a TRRS headphone jack for stereo out
and composite out, a microphone, an IR receiver, a CSI connector, 2 LEDs,
a 3 pin UART header, and a 40-pin GPIO header.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Jorik Jonker