Add document for Milk-V Duo board which based on Sophgo's CV1800B SoC.
Signed-off-by: Kongyang Liu seashell11234455@gmail.com ---
(no changes since v1)
doc/board/index.rst | 1 + doc/board/sophgo/index.rst | 8 ++++++ doc/board/sophgo/milkv_duo.rst | 50 ++++++++++++++++++++++++++++++++++ 3 files changed, 59 insertions(+) create mode 100644 doc/board/sophgo/index.rst create mode 100644 doc/board/sophgo/milkv_duo.rst
diff --git a/doc/board/index.rst b/doc/board/index.rst index 531e547e7e..a0bd534742 100644 --- a/doc/board/index.rst +++ b/doc/board/index.rst @@ -45,6 +45,7 @@ Board-specific doc sifive/index sipeed/index socionext/index + sophgo/index st/index starfive/index ste/index diff --git a/doc/board/sophgo/index.rst b/doc/board/sophgo/index.rst new file mode 100644 index 0000000000..e097afdac6 --- /dev/null +++ b/doc/board/sophgo/index.rst @@ -0,0 +1,8 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +Sophgo +====== +.. toctree:: + :maxdepth: 1 + + milkv_duo diff --git a/doc/board/sophgo/milkv_duo.rst b/doc/board/sophgo/milkv_duo.rst new file mode 100644 index 0000000000..b63304b510 --- /dev/null +++ b/doc/board/sophgo/milkv_duo.rst @@ -0,0 +1,50 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +Milk-V Duo +========== + +CV1800B RISC-V SoC +------------------ +The CV1800B is a high-performance, low-power 1+1 64-bit RISC-V SoC from Sophgo. + +Mainline support +---------------- +The support for following drivers are already enabled: +1. ns16550 UART Driver. + +Building +~~~~~~~~ +1. Add the RISC-V toolchain to your PATH. +2. Setup ARCH & cross compilation environment variable: + +.. code-block:: console + + export CROSS_COMPILE=<riscv64 toolchain prefix> + cd <U-Boot-dir> + make milkv_duo_defconfig + make + +This will generate u-boot-dtb.bin + +Booting +~~~~~~~ +Currently, we rely on vendor FSBL(First Stage Boot Loader) to initialize the +clock and load the u-boot image, then bootup from it. + +Sample boot log from Milk-V Duo board +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.. code-block:: none + + U-Boot 2024.01-rc5-00010-g51965baa36 (Dec 28 2023 - 13:15:53 +0800)milkv_duo + + DRAM: 63.3 MiB + Core: 10 devices, 8 uclasses, devicetree: separate + Loading Environment from nowhere... OK + In: serial@4140000 + Out: serial@4140000 + Err: serial@4140000 + Net: No ethernet found. + milkv_duo# cpu detail + 0: cpu@0 rv64imafdc + ID = 0, freq = 0 Hz: L1 cache, MMU + milkv_duo#