45 lines
747 B
Markdown
45 lines
747 B
Markdown
#### build
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```
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wge https://source.denx.de/u-boot/u-boot/-/archive/v2021.04/u-boot-v2021.04.tar.gz
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cd u-boot-v2021.04/
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make distclean
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make rpi_4_defconfig
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make -j X
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```
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#### vim boot.scr （NOT NEEDED ANYMORE）
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```
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fdt addr ${fdt_addr} && fdt get value bootargs /chosen bootargs
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fatload mmc 0:1 ${kernel_addr_r} kernel8.img
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booti ${kernel_addr_r} - ${fdt_addr}
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```
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```
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./tools/mkimage -A arm64 -T script -C none -n "Boot script" -d boot.scr boot.scr.uimg
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cp u-boot.bin /boot/
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cp boot.scr.uimg /boot/
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cd /boot/
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vim config.txt
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```
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----
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#### config.txt
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**add:**
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```
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kernel=u-boot.bin
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kernel_address=Ox00080000
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arm_64bit=1
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enable_uart=1
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uart_2ndstage=1
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enable_gic=1
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```
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#### PS:
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**kernel=kernel8.img** change to **kernel=u-boot.bin**
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