原创 开发板上linux启动的相关信息解析

开发板上linux启动的相关信息<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

Press Return to start the LINUX now, any other key for vivi

Copy linux kernel from 0x00030000 to 0x30008000, size = 0x00100000 ... done（从Flash拷贝到SDRAM上，大小为<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />1M）

zImage magic = 0x016f2818

Setup linux parameters at 0x30000100

linux command line is: "noinitrd root="/dev/bon/3" init="/linuxrc" console="ttyS0""

MACH_TYPE = 193

NOW, Booting Linux......

Uncompressing Linux.............................................................

 done, booting the kernel.

Linux version 2.4.18-rmk7-pxa1 (root@BC) (gcc version 2.95.2 20000516 (release)

[Rebel.com]) #281 六 12月 22 14:06:55 CST 2007   （内核版本信息，编译时自动加入）

CPU: ARM/CIRRUS Arm920Tsid(wb) revision 0  （处理器的相关信息，这是通过确/arm2410cl/kernel/linux-2.4.18-2410cl/init/main.c 中的setup_arch()函数打印的）

Machine: Samsung-SMDK2410                    （结构为Samsung-SMDK2410）

On node 0 totalpages: 16384                       （总共为16384页，为16384*4K）

zone(0): 16384 pages.                            （映射的区域为zone 0,整个页都在这）

zone(1): 0 pages.

zone(2): 0 pages.

Kernel command line: noinitrd root="/dev/bon/3" init="/linuxrc" console="ttyS0" （/arm2410cl/kernel/linux-2.4.18-2410cl/init/main.c 中的printk("Kernel command line: %s\n", saved_command_line);来实现的，root说明启动的时候使用哪一种系统，如2410使用NFS或是yaffs系统启动。init启动时初始化的配置信息,表示使用的是rc文件进行启动的（在开发板中/etc/rc），在启动时自动对应其配置文件）

/*以下注释不做说明表其函数均在/arm2410cl/kernel/linux-2.4.18-2410cl/init/main.c 中*/

Console: colour dummy device 80x30     （console_init();    初始化控制台，通过串口进行连接的控制台）

Calibrating delay loop... 99.94 BogoMIPS  （calibrate_delay();        //同步延时）

Memory: 64MB = 64MB total                               (mem_init();     //初始化内存空间)

Memory: 62428KB available (1548K code, 430K data, 64K init)  

Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)     (kmem_cache_sizes_init();  //初始化cache)

Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)     (proc_caches_init();//对proc目录里的cache进行初始化)

Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)    (vfs_caches_init(mempages); //对虚拟文件cache进行初始化)

Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)   （buffer_init(mempages)   //缓存初始化）

Page-cache hash table entries: 16384 (order: 4, 65536 bytes)    (page_cache_init(mempages); //pagecache初始)

POSIX conformance testing by UNIFIX                (printk("POSIX conformance testing by UNIFIX\n");)

Linux NET4.0 for Linux 2.4                              (sock_init();     //网络相关初始化)

Based upon SwanseaUniversity Computer Society NET3.039

Initializing RT netlink socket

BlueZ Core ver 2.4 Copyright (C) 2000,2001 Qualcomm Inc

Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>

CPU clock = 202.800000 Mhz, HCLK = 101.400000 Mhz, PCLK = 50.700000 Mhz

Initializing S3C2410 buffer pool for DMA workaround

Starting kswapd

devfs: v1.10 (20020120) Richard Gooch (rgooch@atnf.csiro.au)

devfs: boot_options: 0x1

Samsung S3C2410X (i2c) algorithm module version 2.6.1 (20010830)

iic_s3c2410_init: Samsung S3C2410X iic adapter module version 2.6.1 (20010830)

i2c-dev.o: Registered 'Samsung S3C2410X IIC adapter' as minor 0

s3c2410_init: Initialized IIC on S3C2410X, 281kHz clock

iic_s3c2410_init: initialized iic-bus at 0xf4000000.

tts/%d0 at I/O 0x50000000 (irq = 52) is a S3C2410

tts/%d1 at I/O 0x50004000 (irq = 55) is a S3C2410

tts/%d2 at I/O 0x50008000 (irq = 58) is a S3C2410

Console: switching to colour frame buffer device 80x60

Installed S3C2410 frame buffer

pty: 256 Unix98 ptys configured

S3C2410 Real Time Clock Driver v0.1

block: 128 slots per queue, batch="32"

PPP generic driver version 2.4.1

s3c2410_dm9k_init is finished

 iobase = ioremap: 10000000

 iobase = ioremap(iobase, 0x3): c48b0000

id_val == DM9KS_ID: 90000a46

<DM9KS> I/O: c48b0000, VID: 90000a46

dm_defethaddr): 8