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The Libre Computer Project ALL-H3-CC has three models, all using the
same board design, but with different pin compatible SoCs and amount of
DRAM.
Currently only the H3 1GB DRAM variant is supported. To support the two
other variants, first split the original device tree into a common board
design part and an SoC specific part.
The SoC part only defines which SoC is used and model name, and includes
the SoC specific dtsi file and the common design dtsi file.
Also fix up the SPDX identifier line to use the correct comment style,
and place it on the first line.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
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The Libre Computer Board ALL-H3-CC from Libre Technology is a Raspberry
Pi B+ form factor single board computer based on the Allwinner H3 SoC.
The board has 1GB DDR3 SDRAM, provided by 4 2Gb chips. The mounting holes
and connectors are in the exact same position as on the Raspberry Pi B+.
Raspberry Pi B+ like peripherals supported on this board include:
- Power input through micro-USB connector (without USB OTG)
- Native 100 Mbps ethernet using the internal PHY, as opposed to
USB-based on the RPi
- 4x USB 2.0 host ports, directly connected to the SoC, as opposed to
being connected through a USB 2.0 hub on the RPi
- TV and audio output on a 3.5mm TRRS jack
- HDMI output
- Micro-SD card slot
- Standard RPi B+ GPIO header, with the standard peripherals routed to
the same pins.
* 5V, 3.3V power, and ground
* I2C0 on the H3 is routed to I2C1 pins on the RPi header
* I2C1 on the H3 is routed to I2C0 pins on the RPi header
* UART1 on the H3 is routed to UART0 pins on the RPi header
* SPI0 on the H3 is routed to SPI0 pins on the RPi header,
with GPIO pin PA17 replacing the missing Chip Select 1
* I2S1 on the H3 is routed to PCM pins on the RPi header
- Additional peripherals from the H3 are available on different pins.
These include I2S0, JTAG, PWM1, SPDIF, SPI1, and UART3
In addition, there are a number of new features:
- Console UART header
- Consumer IR receiver
- Camera interface (not compatible with RPi)
- Onboard microphone
- eMMC expansion module port
- Heatsink mounting holes
This patch adds defconfig and dts files for this board. The dts file is
the same as the one submitted for inclusion in Linux, with some minor
revisions to match the dtsi file and old EMAC bindings in U-boot.
Since the OTG controller is wired to a USB host port, and the H3 has
proper USB hosts to handle host mode, the MUSB driver is not enabled.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
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