【Tiny4412】EMMC啓動最小網絡文件系統

00. 目錄

01. 燒寫內核

1.1 在minicom中輸入如下命令

DengJin # dnw 40008000
OTG cable Connected!
Now, Waiting for DNW to transmit data

1.2 PC端下載zImage

[root@itcast linux-3.5_analyse]# dnw arch/arm/boot/zImage 
load address: 0x57E00000
Writing data...
100%    0x0048FCF2 bytes (4671 K)
speed: 1.175104M/S
[root@itcast linux-3.5_analyse]# 

1.3 將內核寫到SD卡

DengJin # movi write kernel 0 40008000
writing kernel..device 0 Start 1057, Count 12288 
MMC write: dev # 0, block # 1057, count 12288 ... 12288 blocks written: OK
completed
DengJin # 

1.4 修改啓動參數

DengJin # set bootcmd "movi read kernel 0 40008000;bootm 40008000"
DengJin # save
Saving Environment to SMDK bootable device...
done
DengJin # 

02. 設置啓動參數

2.1 設置啓動參數

# 設置bootargs參數
DengJin # set bootargs root=/dev/nfs nfsroot=172.16.0.53:/filesystem ip=172.16.0.251 
console=ttySAC0,115200 lcd=S70 ctp=2
DengJin # save
Saving Environment to SMDK bootable device...
done

# 顯示環境變量
DengJin # printenv
baudrate=115200
bootargs=root=/dev/nfs nfsroot=172.16.0.53:/filesystem ip=172.16.0.251 
console=ttySAC0,115200 lcd=S70 ctp=2
bootcmd=movi read kernel 0 40008000;bootm 40008000
bootdelay=3
ethaddr=00:40:5c:26:0a:5b
gatewayip=192.168.0.1
ipaddr=192.168.0.20
netmask=255.255.255.0
serverip=192.168.0.10

Environment size: 693/16380 bytes
DengJin # 

最小網絡文件系統製作請參考附錄.

03. 問題討論

04. 參考

4.1 最小網絡文件系統製作

參考：【Tiny4412】最小網絡文件系統製作

4.2 燒寫Uboot到EMMC
參考：【Tiny4412】燒寫Uboot到EMMC