[PATCH v6 19/19] riscv: Add Sipeed Maix support

Sean Anderson seanga2 at gmail.com
Tue Mar 10 14:19:19 CET 2020

On 3/10/20 5:04 AM, Rick Chen wrote:
> Hi Sean
>> 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 at gmail.com>
>> ---
> This patch applying fail
> Applying: riscv: Add Sipeed Maix support
> error: patch failed: doc/board/index.rst:16
> error: doc/board/index.rst: patch does not apply
> Patch failed at 0001 riscv: Add Sipeed Maix support
> The copy of the patch that failed is found in: .git/rebase-apply/patch
> When you have resolved this problem, run "git am --continue".
> If you prefer to skip this patch, run "git am --skip" instead.
> To restore the original branch and stop patching, run "git am --abort".
> I have replied to you the same result in v5
> [v5,33/33] riscv: Add Sipeed Maix support
> https://patchwork.ozlabs.org/patch/1246869/#2376311

As above, I just rebased against u-boot/master. I'm not sure what's
causing the problem here.

> By the way,
> you can not mix them (arch, board, configs, doc)together in a patch.
> arch/riscv/Kconfig
> board/sipeed/maix/ ...
> configs/sipeed_maix_bitm_defconfig
> doc/board/index.rst

Is there a preferred order for adding these? I will split them for v7.

> Thanks,
> Rick

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