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嵌入式Linux 2.6 内核专题 - 嵌入式开发 - 中国Linux公社论坛
gaston feng |
May 11, 2008 2:35:34 PM
[quote:c2eac828fb="zcs008"][quote:c2eac828fb="91program"]console=ttyS0
应该改为：
console=ttySAC0
内核对串口的命名改变了。[/quote]
bootloader 是U-BOOT 怎么改？
我改了，但是还是一样，
U-Boot 1.1.2 (Nov 13 2006 - 13:59:4
U-Boot code: 33F80000 -> 33F9B26C BSS: -> 33F9F368
RAM Configuration:
Bank #0: 30000000 64 MB
Flash: 1 MB
NAND: 64 MB
In: serial
Out: serial
Err: serial
008_uboot # printenv
bootdelay=3
baudrate=115200
ethaddr=08:01:3e:26:8a:5b
filesize=d857c
fileaddr=30008000
netmask=255.255.255.0
ipaddr=192.168.0.188
serverip=192.168.0.35
bootargs=console=ttySAC0,115200
stdin=serial
stdout=serial
stderr=serial
Environment size: 225/65532 bytes
008_uboot # tftp 0x30008000 zImage
TFTP from server 192.168.0.35; our IP address is 192.168.0.188
Filename 'zImage'.
Load address: 0x30008000
Loading: #################################################################
#################################################################
############################################
done
Bytes transferred = 886140 (d857c hex)
008_uboot # bootm
## Booting image at 30008000 ...
Bad Magic Number
008_uboot # go 0x30008000
## Starting application at 0x30008000 ...
Uncompressing Linux.......................................................... done, booting the kernel.[/quote]
U-BOOT可以使用setenv命令更改命令参数
setenv bootargs console=ttySAC0,115200
u-boot go命令不能传递命令行参数给内核,因此会在运行HEAD.S中检测CPU类型时错误而终止运行
另外,在U-BOOT配制文件(INCLUDE\CONFIGS\XXX.H)中需要定义下面宏,使能U-BOOT传递命令参数给内核
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_INITRD_TAG
#define CONFIG_CMDLINE_TAG
U-BOOT的BOOTM命令只能引导附加U-BOOT信息的内核,U-BOOT会在内核前加64个字节信息.
在U-BOOT目录下的TOOLS目录中有MKIMAGE工具制作U-BOOT能够引导内核
在U-BOOT README文件中有描述如下
U-BOOT目录/tools/mkimage -A arm-O linux -T kernel -C none\
-a 30008000 -e 30008000 -n "Linux Kernel Image" -d zImage uImage
zImage 为LINUX压缩内核,这个在LINUX目录arch/arm/boot/makefile有介绍
由于U-BOOT在内核前添加64个字节,所以引导时应该考虑这个64个字节
tftp 30007fc0 uImage
bootm 30007fc0
nboot 30007fc0 0 40000
应该改为：
console=ttySAC0
内核对串口的命名改变了。[/quote]
bootloader 是U-BOOT 怎么改？
我改了，但是还是一样，
U-Boot 1.1.2 (Nov 13 2006 - 13:59:4
U-Boot code: 33F80000 -> 33F9B26C BSS: -> 33F9F368
RAM Configuration:
Bank #0: 30000000 64 MB
Flash: 1 MB
NAND: 64 MB
In: serial
Out: serial
Err: serial
008_uboot # printenv
bootdelay=3
baudrate=115200
ethaddr=08:01:3e:26:8a:5b
filesize=d857c
fileaddr=30008000
netmask=255.255.255.0
ipaddr=192.168.0.188
serverip=192.168.0.35
bootargs=console=ttySAC0,115200
stdin=serial
stdout=serial
stderr=serial
Environment size: 225/65532 bytes
008_uboot # tftp 0x30008000 zImage
TFTP from server 192.168.0.35; our IP address is 192.168.0.188
Filename 'zImage'.
Load address: 0x30008000
Loading: #################################################################
#################################################################
############################################
done
Bytes transferred = 886140 (d857c hex)
008_uboot # bootm
## Booting image at 30008000 ...
Bad Magic Number
008_uboot # go 0x30008000
## Starting application at 0x30008000 ...
Uncompressing Linux.......................................................... done, booting the kernel.[/quote]
U-BOOT可以使用setenv命令更改命令参数
setenv bootargs console=ttySAC0,115200
u-boot go命令不能传递命令行参数给内核,因此会在运行HEAD.S中检测CPU类型时错误而终止运行
另外,在U-BOOT配制文件(INCLUDE\CONFIGS\XXX.H)中需要定义下面宏,使能U-BOOT传递命令参数给内核
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_INITRD_TAG
#define CONFIG_CMDLINE_TAG
U-BOOT的BOOTM命令只能引导附加U-BOOT信息的内核,U-BOOT会在内核前加64个字节信息.
在U-BOOT目录下的TOOLS目录中有MKIMAGE工具制作U-BOOT能够引导内核
在U-BOOT README文件中有描述如下
QUOTE:
Configuring the Linux kernel:
-----------------------------
No specific requirements for U-Boot. Make sure you have some root
device (initial ramdisk, NFS) for your target system.
Building a Linux Image:
-----------------------
...............
-----------------------------
No specific requirements for U-Boot. Make sure you have some root
device (initial ramdisk, NFS) for your target system.
Building a Linux Image:
-----------------------
...............
U-BOOT目录/tools/mkimage -A arm-O linux -T kernel -C none\
-a 30008000 -e 30008000 -n "Linux Kernel Image" -d zImage uImage
zImage 为LINUX压缩内核,这个在LINUX目录arch/arm/boot/makefile有介绍
QUOTE:
quiet_cmd_uimage = UIMAGE $@
cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \
-C none -a $(ZRELADDR) -e $(ZRELADDR) \
-n 'Linux-$(KERNELRELEASE)' -d $< $@
cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \
-C none -a $(ZRELADDR) -e $(ZRELADDR) \
-n 'Linux-$(KERNELRELEASE)' -d $< $@
由于U-BOOT在内核前添加64个字节,所以引导时应该考虑这个64个字节
tftp 30007fc0 uImage
bootm 30007fc0
nboot 30007fc0 0 40000
QUOTE:
U-Boot 1.1.6 (Jan 15 2007 - 12:26:31)
DRAM: 64 MB
NAND: 64 MB
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
#>> tftp 30007fc0 uImage
TFTP from server 192.168.1.10; our IP address is 192.168.1.20
Filename 'uImage'.
Load address: 0x30007fc0
Loading: #################################################################
#################################################################
#################################################################
#######
done
Bytes transferred = 1029864 (fb6e8 hex)
Automatic boot of image at addr 0x30007fc0 ...
## Booting image at 30007fc0 ...
Image Name: Linux Kernel Image
Created: 2007-01-12 5:48:00 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1029800 Bytes = 1005.7 kB
Load Address: 30008000
Entry Point: 30008000
Verifying Checksum ... OK
OK
Starting kernel ...
Uncompressing Linux....................................................................... done, booting the kernel.
Linux version 2.4.18-rmk7-pxa1 (root@lqmpc2) (gcc version 2.95.2 20000516 (release) [Rebel.com]) #265 二 3月 8 18:41:32 CST 2005
CPU: ARM/CIRRUS Arm920Tsid(wb) revision 0
Machine: Stone-2410
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: console=ttyS0,115200
TCNTB4 = 15843
Console: colour dummy device 80x30
Calibrating delay loop... 50.58 BogoMIPS
Memory: 64MB = 64MB total
Memory: 62100KB available (1718K code, 571K data, 76K init)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
DRAM: 64 MB
NAND: 64 MB
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
#>> tftp 30007fc0 uImage
TFTP from server 192.168.1.10; our IP address is 192.168.1.20
Filename 'uImage'.
Load address: 0x30007fc0
Loading: #################################################################
#################################################################
#################################################################
#######
done
Bytes transferred = 1029864 (fb6e8 hex)
Automatic boot of image at addr 0x30007fc0 ...
## Booting image at 30007fc0 ...
Image Name: Linux Kernel Image
Created: 2007-01-12 5:48:00 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1029800 Bytes = 1005.7 kB
Load Address: 30008000
Entry Point: 30008000
Verifying Checksum ... OK
OK
Starting kernel ...
Uncompressing Linux....................................................................... done, booting the kernel.
Linux version 2.4.18-rmk7-pxa1 (root@lqmpc2) (gcc version 2.95.2 20000516 (release) [Rebel.com]) #265 二 3月 8 18:41:32 CST 2005
CPU: ARM/CIRRUS Arm920Tsid(wb) revision 0
Machine: Stone-2410
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: console=ttyS0,115200
TCNTB4 = 15843
Console: colour dummy device 80x30
Calibrating delay loop... 50.58 BogoMIPS
Memory: 64MB = 64MB total
Memory: 62100KB available (1718K code, 571K data, 76K init)
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
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