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
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com>
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*/
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#ifndef CONFIGS_SIPEED_MAIX_H
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#define CONFIGS_SIPEED_MAIX_H
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#include <linux/sizes.h>
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#define CONFIG_SYS_LOAD_ADDR 0x80000000
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/* Start just below the second bank so we don't clobber it during reloc */
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#define CONFIG_SYS_INIT_SP_ADDR 0x803FFFFF
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#define CONFIG_SYS_MALLOC_LEN SZ_128K
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#define CONFIG_SYS_CACHELINE_SIZE 64
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#define CONFIG_SYS_SDRAM_BASE 0x80000000
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/* Don't relocate into AI ram since it isn't set up yet */
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#define CONFIG_SYS_SDRAM_SIZE (SZ_4M + SZ_2M)
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/* For early init */
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#define K210_SYSCTL_BASE 0x50440000
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2020-07-29 10:49:24 +00:00
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#ifndef CONFIG_EXTRA_ENV_SETTINGS
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"loadaddr=0x80060000\0" \
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"fdt_addr_r=0x80028000\0" \
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"scriptaddr=0x80020000\0" \
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"kernel_addr_r=0x80060000\0" \
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"fdtfile=kendryte/" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0"
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#endif
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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
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#endif /* CONFIGS_SIPEED_MAIX_H */
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