diff --git a/board/riscv64/visionfive2/README.md b/board/riscv64/visionfive2/README.md new file mode 100644 index 00000000..64c95fb6 --- /dev/null +++ b/board/riscv64/visionfive2/README.md @@ -0,0 +1,66 @@ +Starfive VisionFive2 +==================== + +The [VisionFive2][1] is a low-cost RISC-V 64-bit based platform, powered +by the Starfive JH7110 processor. + +Infix runs from either SD card or eMMC, this guide only covers SD card. + + +How to Build +------------ + +``` +$ make visionfive2_defconfig +$ make +``` + +Once the build has finished you will have `output/images/sdcard.img` +which you can flash to an SD card. + +``` +$ sudo dd if=output/images/sdcard.img of=/dev/mmcblk0 bs=1M status=progress oflag=direct +``` + +> **WARNING:** ensure `/dev/mmcblk0` really is the correct device for +> your SD card, and not used by the system! + + +Bootstrap Mode +-------------- + +Ensure the correct [bootstrap mode][3] for booting from SD card. From +factory the board is preset to start from QSPI flash, which also has a +U-Boot that tries to load a Linux system from SD card, or fail-over to +load from the network. + +| **Mode** | **`RGPIO_1`** | **`RGPIO_0`** | +|----------|---------------|---------------| +| QSPI NOR | 0 (L) | 0 (L) | +| SD card | 0 (L) | 1 (H) | +| eMMC | 1 (H) | 0 (L) | +| UART | 1 (H) | 1 (H) | + +> **Note:** the DIP switches are flipped 180° so don't get confused by +> the socket's `ON` label. Look at the L and H markings on the board! + + +Booting the Board +----------------- + + 1. Connect a TTL UART cable to pin 6 (GND), 8 (TX) and 10 (RX) + 2. Insert your SD card + 3. Power-up the board using an USB-C cable + +You need a *stable power source*! If you get the following on the +console at power on, try to power cycle the device again: + +``` +dwmci_s: Response Timeout. +dwmci_s: Response Timeout. +BOOT fail,Error is 0xffffffff +``` + +[1]: https://doc-en.rvspace.org/Doc_Center/visionfive_2.html +[2]: https://doc-en.rvspace.org/VisionFive2/Quick_Start_Guide/VisionFive2_SDK_QSG/recovering_bootloader%20-%20vf2.html +[3]: https://doc-en.rvspace.org/VisionFive2/Quick_Start_Guide/VisionFive2_SDK_QSG/boot_mode_settings.html