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riscv: Add Sipeed Maix support The Sipeed Maix series is a collection of boards built around the RISC-V Kendryte K210 processor. This processor contains several peripherals to accelerate neural network processing and other "ai" tasks. This includes a "KPU" neural network processor, an audio processor supporting beamforming reception, and a digital video port supporting capture and output at VGA resolution. Other peripherals include 8M of sram (accessible with and without caching); remappable pins, including 40 GPIOs; AES, FFT, and SHA256 accelerators; a DMA controller; and I2C, I2S, and SPI controllers. Maix peripherals vary, but include spi flash; on-board usb-serial bridges; ports for cameras, displays, and sd cards; and ESP32 chips. Currently, only the Sipeed Maix Bit V2.0 (bitm) is supported, but the boards are fairly similar. Documentation for Maix boards is located at <http://dl.sipeed.com/MAIX/HDK/>. Documentation for the Kendryte K210 is located at <https://kendryte.com/downloads/>. However, hardware details are rather lacking, so most technical reference has been taken from the standalone sdk located at <https://github.com/kendryte/kendryte-standalone-sdk>. Signed-off-by: Sean Anderson <seanga2@gmail.com>
2020-06-24 10:41:25 +00:00
Sipeed Maix BOARD
M: Sean Anderson <seanga2@gmail.com>
S: Maintained
F: arch/riscv/dts/k210.dtsi
F: arch/riscv/dts/k210-maix-bit.dts
F: board/sipeed/maix/
F: configs/sipeed_maix_bitm_defconfig
F: doc/board/sipeed/
F: include/configs/sipeed-maix.h
F: include/dt-bindings/*/k210-sysctl.h
F: test/dm/k210_pll.c
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