# PiBoot

**Repository Path**: nathanjoy/PiBoot

## Basic Information

- **Project Name**: PiBoot
- **Description**: 树莓派b3 uboot启动
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2025-07-11
- **Last Updated**: 2025-07-18

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README


# 编译u-boot

- Version u-boot-2025.07.tar.bz2

- 前置编译安装软件

``` bash
sudo apt install git build-essential gcc-aarch64-linux-gnu device-tree-compiler bc libssl-dev libgnutls28-dev genimage mtools u-boot-tools
```

- conf

``` bash
CONFIG_DM_SERIAL=y
CONFIG_PL011_SERIAL=y

CONFIG_BOOTDELAY=5
CONFIG_AUTOBOOT_KEYED=y
```

``` bash
make rpi_3_defconfig
bear -- make CROSS_COMPILE=aarch64-linux-gnu- -j$(nproc)
aarch64-linux-gnu-objdump -S u-boot > u-boot.S
```

# 调试

``` bash
qemu-system-aarch64   -M raspi3b   -m 1024   -kernel u-boot/u-boot.bin   -dtb u-boot/arch/arm/dts/bcm2837-rpi-3-b.dtb  -drive file=out/images/sdimage.img,format=raw,if=sd   -device usb-kbd  -serial mon:stdio -nographic  -S  -gdb tcp::1234 

gdb-multiarch -ex "set architecture aarch64" -ex "target remote localhost:1234" u-boot/u-boot
b *0x8002c
```