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Qemu Add Nand Flash #77

Open wutiejun opened 7 years ago

wutiejun commented 7 years ago

Qemu Add Nand Flash

Booting Linux with U-Boot on QEMU ARM

https://balau82.wordpress.com/2010/04/12/booting-linux-with-u-boot-on-qemu-arm/

http://blog.csdn.net/zeroboundary/article/details/12657215

Compile Linux, BusyBox for ARM and load it using QEMU

https://github.com/surajx/qemu-arm-linux/wiki/Compile-Linux,-BusyBox-for-ARM-and-load-it-using-QEMU

https://git.linaro.org/

http://blog.csdn.net/caspiansea/article/details/12986565

http://www.cnblogs.com/pengdonglin137/p/5023342.html#_label5

wutiejun commented 7 years ago

run.sh

#!/bin/bash

Image=./source/kernel/linux-3.10.53/arch/arm/boot/zImage
Rootfs=./rootfs.img
LinuxArgs="root=/dev/ram rdinit=/sbin/init console=ttyAMA0"
NetConfig="-net nic -net tap,vlan=0,ifname=tap0,script=./qemu-ifup,downscript=./qemu-ifdown"
MtdConfig="-mtdblock ./flash.bin"

qemu-system-arm -nographic -M vexpress-a9 -m 256M \
    -kernel $Image \
    -initrd $Rootfs \
    $MtdConfig \
    -append "$LinuxArgs" \
    $NetConfig \
wutiejun commented 7 years ago

qemu-ifup

#!/bin/bash
#/sbin/ifconfig $1 192.168.0.1 netmask 255.255.255.252
#/sbin/ifconfig $1 192.168.1.5 netmask 255.255.255.252

eth=tap0
IP=`ifconfig $eth |grep "inet addr"|awk '{print $2}'|sed 's/addr://'`
GATEWAY=`ip route |grep default |awk '{print $3}'`

ip addr del $IP dev $eth

ifconfig $1 up

ifconfig br0 down &>/dev/null

brctl delbr br0 &>/dev/null

brctl addbr br0

brctl addif br0 $eth

brctl addif br0 $1

ifconfig br0 $IP up

ifconfig $eth mtu 1600 
#ip route add default via $GATEWAY dev br0 &>/dev/null
wutiejun commented 7 years ago

qemu-ifdown

#!/bin/bash

#/sbin/ifconfig $1 down

eth=tap0
IP=`ifconfig br0|grep "inet addr"|awk '{print $2}'|sed 's/addr://'`

GATEWAY=`ip route |grep default|awk '{print $3}'`

ip addr del $IP dev br0

ifconfig br0 down

brctl delbr br0

ifconfig $eth $IP up

ip route add default via $GATEWAY dev $eth

ifconfig $eth mtu 1500
wutiejun commented 7 years ago

compile uboot

make vexpress_ca9x4_config  
export ARCH=arm  
export CROSS_COMPILE=arm-linux-gnueabi-  
make vexpress_ca9x4_config  
make

boot uboot

注意，就是u-boot文件，不是u-boot.bin文件

 qemu-system-arm -M vexpress-a9 \
-kernel ./source/uboot/u-boot-2015.10/u-boot -nographic
wutiejun commented 7 years ago

http://www.denx.de/en/News/WebHome

wutiejun commented 7 years ago

https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt

https://help.ubuntu.com/lts/serverguide/dhcp.html

wutiejun commented 7 years ago

http://wiki.emacinc.com/wiki/Booting_with_an_NFS_Root_Filesystem

wutiejun commented 7 years ago

/etc/exports

#/home/wutiejun/workspace/VBox/rootfs  0.0.0.0(rw,sync,no_subtree_check)
/srv/rootfs  192.168.100.0/24(rw,async,no_subtree_check,insecure,no_root_squash)

command line

LinuxArgs="root=/dev/nfs nfsroot=192.168.100.101:/srv/rootfs,nfsvers=3 rw \
ip=192.168.100.1::192.168.100.2:255.255.255.0 console=ttyAMA0 \
user_debug=0x1f panic=1"

kernel config

  1. remove gre
  2. remove bond

Tip: according to the error message, try to remove the net device config.

wutiejun commented 7 years ago

https://zh-cn.wordpress.com/

wutiejun commented 7 years ago

如何修改内核添加一块MTD Flash

http://free-electrons.com/blog/managing-flash-storage-with-linux/

http://processors.wiki.ti.com/images/f/fd/Arm_qemu.pdf

wutiejun commented 7 years ago 
#!/bin/bash

Image=./source/kernel/linux-3.16.48/arch/arm/boot/zImage
#Image=./source/kernel/linux-3.10.53/arch/arm/boot/zImage
#Image=./flash.bin

Rootfs=./rootfs.img

#LinuxArgs="root=/dev/ram rdinit=/sbin/init console=ttyAMA0 ubi.mtd=0 mtdparts=physmap-flash:0x100000(u-boot),0x3f00000(ubifs),-(data) user_debug=0x1f panic=1"

#LinuxArgs="root=/dev/ram rdinit=/sbin/init console=ttyAMA0 ubi.mtd=0 mtdparts=SmartMedia:0x100000(u-boot),0x3f00000(ubifs),-(data) user_debug=0x1f panic=1"

LinuxArgs="root=/dev/nfs nfsroot=192.168.100.101:/home/wutiejun/workspace/VBox/rootfs,nfsvers=3 rw ip=192.168.100.1::192.168.100.2:255.255.255.0 \
console=ttyAMA0 user_debug=0x1f panic=1 mtdparts=physmap-flash:0x100000(u-boot),0x3f00000(ubifs),-(data)"

# "mtdparts=physmap-flash:0x100000(u-boot),0x3f00000(ubifs),-(data)"

#LinuxArgs="root=/dev/nfs rootwait rw init=/bin/init nfsroot=192.168.100.1:/srv/rootfs,nfsvers=3 ip=dhcp console=ttyAMA0 user_debug=0x1f panic=1"

#LinuxArgs="noalign console=ttyAMA0 root=/dev/mtdblock1 rootfstype=squashfs ubi.mtd=0 mtdparts=armflash:0x100000@0x0(u-boot),0x3f00000@0x100000(ubifs) user_debug=0x1f panic=1"

NetConfig="-net nic -net tap,vlan=0,ifname=tap0,script=./qemu-ifup,downscript=./qemu-ifdown"

#NetConfig="-net nic -net tap,vlan=0,ifname=tap0,script=no"

MtdConfig="-pflash ./flash.bin"

#MtdConfig="-mtdblock ./flash.bin"

#MtdConfig="-drive id=mtd0,file=./flash2.bin,if=mtd,bus=1,unit=0,format=raw"

InitrdArgs="-initrd ./rootfs.img"

#qemu-system-arm -M vexpress-a9 -kernel ./source/uboot/u-boot-2015.10/u-boot -nographic
#/home/wutiejun/MyTools/bin/
#   -initrd $Rootfs \
#-append "$LinuxArgs" \
#-initrd $Rootfs \
#-append "$LinuxArgs" \

if [ "$1" == "debug" ]; then
    Debug="-s -S"
else
    Debug=""
fi

#QEMU=/home/wutiejun/MyTools/bin/qemu-system-arm
QEMU=qemu-system-arm

sudo $QEMU -nographic -M vexpress-a9 -smp 4 -m 512M \
    -kernel $Image \
    -append "$LinuxArgs" \
    $InitrdArgs \
    $MtdConfig \
    $NetConfig \
    $Debug

# Restore TTY from Qemu target
stty sane
wutiejun commented 7 years ago

MTD-utils for ARM

http://wiki.beyondlogic.org/index.php/Cross_Compiling_MTD_Utils_for_ARM

http://www.linux-mtd.infradead.org/faq/ubifs.html

wutiejun commented 6 years ago

http://www.cnblogs.com/pengdonglin137/p/5023608.html

wutiejun commented 6 years ago 
#!/bin/bash

cd ./rootfs/
chmod +x etc/init.d/rcS
find . | cpio -o --format=newc > ../rootfs.img

cd ..
rm -f ./rootfs.squashfs
rm -f ./rootfs.squashfs.ubi
rm -f ./flash.bin
#mksquashfs ./rootfs ./rootfs.squashfs
mksquashfs rootfs rootfs.squashfs -xattrs -comp xz

zImagefile=./source/kernel/zImage
mkimage -A arm -C none -O linux -T kernel -d $zImagefile -a 0x00010000 -e 0x00010000 uImage

ubinize -o flash.ubi -p 128KiB -m 2048 ubi.conf

#mkimage -A arm -C none -O linux -T ramdisk -d rootfs.img.gz -a 0x00800000 -e 0x00800000 rootfs.uimg

ubootfile=./source/uboot/u-boot
arm-linux-gnueabi-strip $ubootfile
flashimg -s 64M -t nand -f flash.bin -p flash.conf \
                        -w uboot,$ubootfile \
                        -w ubi,flash.ubi -z 2048

#mkimage -A arm -C none -O linux -T kernel -d zImage -a 0x00010000 -e 0x00010000 zImage.uimg
#mkimage -A arm -C none -O linux -T ramdisk -d rootfs.img.gz -a 0x00800000 -e 0x00800000 rootfs.uimg
#dd if=/dev/zero of=flash2.bin bs=1K count=32K
#dd if=$ubootfile of=flash.bin conv=notrunc bs=1K 
#dd if=uImage of=flash.bin conv=notrunc bs=1 seek=1M
#dd if=rootfs.squashfs of=flash.bin conv=notrunc bs=1 seek=4M