u-boot 컴파일,부팅

embedded system

jianna6 2015. 1. 16. 13:34

u-boot 코드 다운로드

$mkdir WORKING_DIRECTORY

$cd WORKING_DIRECTORY

$git init

$git clone https://git.linaro.org/boot/u-boot-linaro-stable.git

cross compile 설치

uboot의 makefile 수정

export CROSS_COMPILE = arm-none-eabi-

export ARCH=arm

u-boot컴파일

$make arndale5250_config

$make

SD card 로 부팅을 위해 코드올리기

$sudo dd if=arndale-bl1.bin of=/dev/sdb bs=512 seek=1

$sudo dd if=spl/smdk5250-spl.bin of=/dev/sdb bs=512 seek=17

$sudo dd if=u-boot.bin of=/dev/sdb bs=512 seek=49

참조 : https://wiki.linaro.org/Boards/Arndale/Setup/EnterpriseUbuntuServer

spl, u-boot은 build후 생성되는 파일들.

SD card의 u-boot으로 부팅완료

U-Boot 2013.01.-rc1-00003-g43ee87a-dirty (Jan 15 2015 - 18:31:41) for ARNDALE520

CPU: Exynos5250@1000MHz

Board: for ARNDALE5250

I2C: ready

DRAM: 2 GiB

WARNING: Caches not enabled

Checking Boot Mode ... SDMMC

MMC: EXYNOS DWMMC: 0, EXYNOS DWMMC: 1, EXYNOS DWMMC: 2

In: serial

Out: serial

Err: serial

Net: No ethernet found.

(Re)start USB...

USB0: USB EHCI 1.00

scanning bus 0 for devices... 4 USB Device(s) found

scanning usb for storage devices... 0 Storage Device(s) found

scanning usb for ethernet devices... 1 Ethernet Device(s) found