Hi all,   

 

I want to know how to transfer the control from Uboot to Linux Kernel. I am using MPC5200B powerpc and ICECUBE board.

Where exactly the Linux Kernel should be loaded?

 

In cmd_bootm.c file,

 

U_BOOT_CMD(

            bootm,  CFG_MAXARGS,           1,         do_bootm,

            "bootm   - boot application image from memory\n",

            "[addr [arg ...]]\n    - boot application image stored in memory\n"

            "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"

            "\t'arg' can be the address of an initrd image\n"

#ifdef CONFIG_OF_FLAT_TREE

            "\tWhen booting a Linux kernel which requires a flat device-tree\n"

            "\ta third argument is required which is the address of the of the\n"

            "\tdevice-tree blob. To boot that kernel without an initrd image,\n"

            "\tuse a '-' for the second argument. If you do not pass a third\n"

            "\ta bd_info struct will be passed instead\n"

#endif

);

 

What do these lines signify?

 

For what U_BOOT_CMD is used? I have read the source code fully.

Please get me some idea.