移植linux2.6内核

caocwy

下载了最新的2.6.26内核，配置gcc3.4.1的编译器
运行了make menuconfig后，发现菜单里完全没有和arm相关的选项，都是x86的CPU
查找了资料发现，需要在makefile中修改
ARCH ?= arm
CROSS_COMPILE ?= arm-linux-
终于出现arm的选项了
晚上边看奥运开幕式边编译，虚拟机跑了一半竟然死机了。。。。。
================8月9日==============================================
没有任何经验去配置2.6.26内核，随随便便添加部件，虽然能够make出zImage，但明显是无法运行的
果然，转换为uImage后，还是停留在booting the kernel处就死掉了。。。。
晚上发现以前下载的linux_mig_release文档中有详细编译2.6.14.1内核的教程，先按照这个做吧
2hours later 10：00
编译完成后，直接用go 调用zImage出现 bad machine ID错误
用bootm加载uImage文章则停留在.................booting the kernel处
在网上搜到bad machine ID的解决方法
arch_number为0xC1, 编辑内核中的arch/arm/boot/compressed/head.S文件，修改
1:    mov    r7, r1        @save architecture ID
改为(arch/arm/tools/mach-types，您所使用的machine type)
1:    mov    r7, #0xC1      @save architecture ID
再重新编译内核即可。
现在uImage和zImage都可以启动，但是都启动到
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
死掉
XXXXXXXXXXXXXXXXXXXX
1hour later 11：00
神奇呢，在配置内核的时候我选择的root是cramfs
所以呢我死马当活马医吧，尝试了下把阳初2410开发板里带的root_china.cramfs输入nand的root分区，再加载2.6.14.1内核
竟然成功了哈，高兴，附启动代码
网卡还没有驱动，明天再研究
------------------------------------
U-Boot 1.2.0 (Aug 29 2007 - 15:01:07)
DRAM: 64 MB
Flash: 512 kB
NAND:    64 MB
In:    serial
Out:   serial
Err:   serial
Hit any key to stop autoboot: 0
YANGCHU2410 # nand erase 0x400000 0x2c00000
NAND erase: device 0 offset 4194304, size 46137344 ...
OK
YANGCHU2410 # tftp 31000000 root.cramfs
TFTP from server 192.168.0.54; our IP address is 192.168.0.53
Filename 'root.cramfs'.
Load address: 0x31000000
Loading: #################################################################
         #################################################################
         #################################################################
         #############################################################
done
Bytes transferred = 1306624 (13f000 hex)
YANGCHU2410 # nand write 0x31000000 0x400000 0x2c00000
NAND write: device 0 offset 4194304, size 46137344 ...
41549824 bytes written: ERROR
YANGCHU2410 # nand write 0x31000000 0x400000 0x1000000
NAND write: device 0 offset 4194304, size 16777216 ...
16777216 bytes written: OK
YANGCHU2410 # tftp 31000000 uImage
TFTP from server 192.168.0.54; our IP address is 192.168.0.53
Filename 'uImage'.
Load address: 0x31000000
Loading: #################################################################
         #################################################################
         ##########################################################
done
Bytes transferred = 957960 (e9e08 hex)
YANGCHU2410 # bootm 31000000
## Booting image at 31000000 ...
   Image Name:   linux-2.6.14.1
   Created:      2008-08-09 14:55:15 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    957896 Bytes = 935.4 kB
   Load Address: 30008000
   Entry Point: 30008000
   Verifying Checksum ... OK
OK
Starting kernel ...
arch_number:c1
boot_params:30000100
Uncompressing Linux................................................................ done, booting the kernel.
Linux version 2.6.14.1 (
[email=root@kyon-desktop]root@kyon-desktop[/email]
) (gcc version 3.4.1) #2 Sat Aug 9 22:24:24 CST 2008
CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T)
Machine: SMDK2410
Memory policy: ECC disabled, Data cache writeback
CPU S3C2410A (id 0x32410002)
S3C2410: core 200.000 MHz, memory 100.000 MHz, peripheral 50.000 MHz
S3C2410 Clocks, (c) 2004 Simtec Electronics
CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
Built 1 zonelists
Kernel command line: noinitrd root=/dev/mtdblock2 init=/linuxrc console=ttySAC0,115200
irq: clearing subpending status 00000002
PID hash table entries: 512 (order: 9, 8192 bytes)
timer tcon=00500000, tcnt a2c1, tcfg 00000200,00000000, usec 00001eb8
Console: colour dummy device 80x30
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 64MB = 64MB total
Memory: 62720KB available (1583K code, 360K data, 88K init)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
softlockup thread 0 started up.
NET: Registered protocol family 16
S3C2410: Initialising architecture
S3C2410 DMA Driver, (c) 2003-2004 Simtec Electronics
DMA channel 0 at c4800000, irq 33
DMA channel 1 at c4800040, irq 34
DMA channel 2 at c4800080, irq 35
DMA channel 3 at c48000c0, irq 36
NetWinder Floating Point Emulator V0.97 (double precision)
devfs: 2004-01-31 Richard Gooch (
rgooch@atnf.csiro.au
)
devfs: boot_options: 0x1
S3C2410 RTC, (c) 2004 Simtec Electronics
s3c2410_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2410
s3c2410_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2410
s3c2410_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2410
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
S3C24XX NAND Driver, (c) 2004 Simtec Electronics
s3c2410-nand: mapped registers at c4880000
s3c2410-nand: timing: Tacls 10ns, Twrph0 40ns, Twrph1 10ns
NAND device: Manufacturer ID: 0xec, Chip ID: 0x76 (Samsung NAND 64MiB 3,3V 8-bit)
NAND_ECC_NONE selected by board driver. This is not recommended !!
Scanning device for bad blocks
Bad eraseblock 2792 at 0x02ba0000
Creating 4 MTD partitions on "NAND 64MiB 3,3V 8-bit":
0x00000000-0x00100000 : "bootloader"
0x00100000-0x00400000 : "kernel"
0x00400000-0x02c00000 : "root"
0x02d00000-0x03c00000 : "user"
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
Reading data from NAND FLASH without ECC is not recommended
VFS: Mounted root (cramfs filesystem) readonly.
Mounted devfs on /dev
Freeing init memory: 88K
Reading data from NAND FLASH without ECC is not recommended
mount /etc as ramfs
re-create the /etc/mtab entries
insmod: QM_MODULES: Function not implemented
mount: Mounting /dev/mtdblock/4 on /usr failed: No such device
console=/dev/console
init started: BusyBox v0.60.3 (2002.05.13-08:36+0000) multi-call binary
Starting pid 24, console /dev/console: '/etc/init.d/rcS'
exec: /usr/etc/rc.local: No such file or directory
Waiting for enter to start '/bin/sh' (pid 27, terminal /dev/console)
Please press Enter to activate this console.
Starting pid 27, console /dev/console: '/bin/sh'
BusyBox v0.60.3 (2002.05.13-08:36+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.
# ls
bin       etc       linuette mnt       qt        tmp       var
dev       lib       linuxrc   proc      sbin      usr
#


本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u2/81599/showart_1921478.html