517f032992
Builds the spi-nor.img together with the sdcard.img. Readme is extended with SPI NOR flash writing instructions and recovery. The spi-nor.img layout is based on the following document: https://doc-en.rvspace.org/VisionFive2/Boot_UG/JH7110_SDK/boot_address_allocation.html Signed-off-by: Lukasz Tekieli <tekieli.lukasz@gmail.com> [Arnout: extend readme.txt with paragraph that either boot mode works.] Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
57 lines
1.4 KiB
Plaintext
57 lines
1.4 KiB
Plaintext
Starfive VisionFive2
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====================
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The VisionFive2 is a low-cost RISC-V 64-bit based platform, powered by a
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Starfive JH7110 processor.
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https://doc-en.rvspace.org/Doc_Center/visionfive_2.html
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How to build
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============
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$ make visionfive2_defconfig
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$ make
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Once the build process is finished you will have two images
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in the output/images/ directory:
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- sdcard.img
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- spi-nor.img
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How to write the SPI NOR flash
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=============================
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If you have a booting device use u-boot and tftp:
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# tftpboot 0x82000000 spi-nor.img
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# sf probe
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# sf update 0x82000000 0x0 {filesize}
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Otherwise, follow the recovery instruction:
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https://doc-en.rvspace.org/VisionFive2/Quick_Start_Guide/VisionFive2_SDK_QSG/recovering_bootloader%20-%20vf2.html
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How to write the SD card
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========================
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Copy the bootable "sdcard.img" onto an SD card with "dd":
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$ sudo dd if=output/images/sdcard.img of=/dev/sdX
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Preparing the board
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===================
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Connect a TTL UART cable to pin 6 (GND), 8 (TX) and 10 (RX).
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Use the correct mode for booting:
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- SD card RGPIO_0=1, GRPIO_1=0
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- SPI NOR flash RGPIO_0=1, GRPIO_1=1
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Note that Buildroot puts the bootloader both in SPI NOR and on the SD card,
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so after flashing as instructed above, either boot mode should work.
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https://doc-en.rvspace.org/VisionFive2/Quick_Start_Guide/VisionFive2_SDK_QSG/boot_mode_settings.html
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Insert your SD card.
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Power-up the board using an USB-C cable.
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