https://blog.youkuaiyun.com/linux_jinxzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/linux_jinx/article/details/7306660https://blog.youkuaiyun.com/linux_jinx/article/details/7306660linux_jinxWed, 29 Feb 2012 16:35:17 +0800https://blog.youkuaiyun.com/linux_jinx/article/details/7084487https://blog.youkuaiyun.com/linux_jinx/article/details/7084487linux_jinxMon, 19 Dec 2011 15:47:48 +0800https://blog.youkuaiyun.com/linux_jinx/article/details/7084345https://blog.youkuaiyun.com/linux_jinx/article/details/7084345linux_jinxMon, 19 Dec 2011 15:22:20 +0800https://blog.youkuaiyun.com/linux_jinx/article/details/5914651https://blog.youkuaiyun.com/linux_jinx/article/details/5914651linux_jinxWed, 29 Sep 2010 17:03:00 +0800ldr pc _start_armboot
_start_armboot: .word start_armboot    start_armboot是一个函数指针，这个symbol对应了符号表里的函数地址，这个函数是一个C语言的函数，他就是u-boot的stage2的入口点，这个stage2应该是在RAM里面执行的。问题就来了，既然我们只是手动将text relocate到]]>https://blog.youkuaiyun.com/linux_jinx/article/details/5911299https://blog.youkuaiyun.com/linux_jinx/article/details/5911299linux_jinxTue, 28 Sep 2010 10:17:00 +0800作者：曹忠明,华清远见嵌入式学院讲师。
Uboot是嵌入式系统中最常用的bootloader，这里我们以s3c2410为例分析一下uboot的启动流程。首先通过uboot的链接文件，我们可以看到uboot运行是执行的第一段代码在start.S中。
ENTRY(_start)
        SECTIONS
        {
                . = 0x00000000;
        . = ALIGN(4);https://blog.youkuaiyun.com/linux_jinx/article/details/5911087https://blog.youkuaiyun.com/linux_jinx/article/details/5911087linux_jinxTue, 28 Sep 2010 09:16:00 +0800https://blog.youkuaiyun.com/linux_jinx/article/details/5909714https://blog.youkuaiyun.com/linux_jinx/article/details/5909714linux_jinxMon, 27 Sep 2010 14:47:00 +0800https://blog.youkuaiyun.com/linux_jinx/article/details/5907777https://blog.youkuaiyun.com/linux_jinx/article/details/5907777linux_jinxSun, 26 Sep 2010 16:44:00 +0800
需求: mount test.img 并更改第一个partition中的某个文件

我们先看看如果直接用mount -o loop会如何:
lawr]]>https://blog.youkuaiyun.com/linux_jinx/article/details/5905035https://blog.youkuaiyun.com/linux_jinx/article/details/5905035linux_jinxSat, 25 Sep 2010 14:17:00 +0800SRC_TREE    :=./
HEADER_PATH    :=arch/arm/boot/compressed
BOOT_PATH    :=arch/arm/boot/
KERNEL_PATH    :=arch/arm/kernel
---------------------------------------]]>https://blog.youkuaiyun.com/linux_jinx/article/details/5904385https://blog.youkuaiyun.com/linux_jinx/article/details/5904385linux_jinxSat, 25 Sep 2010 09:47:00 +0800（版本为2.6.18以上）
内核初始化设备驱动的过程：start_kernel（）－>rest_init()->do_basic_setup()->do_initcalls()
函数do_initcalls如下：
  for (call = __initcall_start; call < __initcall_end; call++) {//循环调用__initcall_start与__initcall_end之间函数
             ....]]>https://blog.youkuaiyun.com/linux_jinx/article/details/5899686https://blog.youkuaiyun.com/linux_jinx/article/details/5899686linux_jinxTue, 21 Sep 2010 16:10:00 +0800https://blog.youkuaiyun.com/linux_jinx/article/details/5899627https://blog.youkuaiyun.com/linux_jinx/article/details/5899627linux_jinxTue, 21 Sep 2010 15:54:00 +0800u-bootcmd
    前面有说过bootcmd是自动启动时默认执行的一些命令，因此你可以在当前环境中定义各种不同配置，不同环境的参数设置，然后设置bootcmd为你经常使用的那种参数。
u-bootargs
    bootargs]]>https://blog.youkuaiyun.com/linux_jinx/article/details/5821730https://blog.youkuaiyun.com/linux_jinx/article/details/5821730linux_jinxWed, 18 Aug 2010 17:14:00 +0800https://blog.youkuaiyun.com/linux_jinx/article/details/5818010https://blog.youkuaiyun.com/linux_jinx/article/details/5818010linux_jinxTue, 17 Aug 2010 14:04:00 +0800https://blog.youkuaiyun.com/linux_jinx/article/details/5817367https://blog.youkuaiyun.com/linux_jinx/article/details/5817367linux_jinxTue, 17 Aug 2010 10:29:00 +0800https://blog.youkuaiyun.com/linux_jinx/article/details/5814200https://blog.youkuaiyun.com/linux_jinx/article/details/5814200linux_jinxSun, 15 Aug 2010 21:19:00 +0800”##”的使用说明
 
by jinx 2008-6-11
 
       在DSP中的CSL头文件中,大量使用了”##”,在此中对”##”进行描述.(“##”在头文件中的意思是表示连接符号)
 
#define _PER_FSHIFT(PER,REG,FIELD) /
    _##PER##_##REG##_##FIELD##_SHIFT
假如设置：_EMIF_FSHIFT(EMIF,GBLCTL,BUSREQ]]>https://blog.youkuaiyun.com/linux_jinx/article/details/5814184https://blog.youkuaiyun.com/linux_jinx/article/details/5814184linux_jinxSun, 15 Aug 2010 21:14:00 +0800