S5PV210之U-Boot移植五（基于TINY210或WEBEE210）-引导zImage

#define LINUX_PAGE_SHIFT 12
#define LINUX_PAGE_SIZE (1<#define LINUX_MACHINE_ID  1099//根据平台修改

 

void do_bootzImage(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
    int i;
    u32 addr;
    char *cmdline = getenv("bootargs");
    void(*run)(int zero, int arch);
    struct param_struct *params = (struct param_struct *)0x20000100;//这里要注意根据平台的不同修改，

    if(argc < 2){
     addr = load_addr; //一般 约定俗成是内存首地址+100dex?
    }
    else{
         addr = simple_strtoul(argv[1], NULL, 16);
      }
 
      for(i=0; i<(sizeof(struct param_struct)>>2); i++){
          ((u32 *)params)[i] = 0;
      }
 
      params->u1.s.page_size = LINUX_PAGE_SIZE;
      params->u1.s.nr_pages = (0x04000000 >> LINUX_PAGE_SHIFT);
 
      memcpy(params->commandline, cmdline, strlen(cmdline));
      run = (void(*)(int, int))addr;
      printf("start kernel.../n");
      run(0, LINUX_MACHINE_ID);
}

U_BOOT_CMD(
bootzImage, 2, 1, do_bootzImage,
"bootzImage --boot zImage from ram./n",
"[addr] boot zImage directoly."
);