How is the u-boot kernel started?-EEWORLD

Collect

/* Initialize parameter list */

#if defined (CONFIG_SETUP_MEMORY_TAGS) ||

defined (CONFIG_CMDLINE_TAG) ||

defined (CONFIG_INITRD_TAG) ||

defined (CONFIG_SERIAL_TAG) ||

defined (CONFIG_REVISION_TAG) ||

defined (CONFIG_LCD) ||

defined (CONFIG_VFD)

setup_start_tag (bd);

#ifdef CONFIG_SERIAL_TAG

setup_serial_tag (¶ms);

#endif

#ifdef CONFIG_REVISION_TAG

setup_revision_tag (¶ms);

#endif

#ifdef CONFIG_SETUP_MEMORY_TAGS

setup_memory_tags (bd);

#endif

#ifdef CONFIG_CMDLINE_TAG

setup_commandline_tag (bd, commandline);

#endif

#ifdef CONFIG_INITRD_TAG

if (initrd_start && initrd_end)

setup_initrd_tag (bd, initrd_start, initrd_end);

#endif

#if defined (CONFIG_VFD) || defined (CONFIG_LCD)

setup_videolfb_tag ((gd_t *) gd);

#endif

setup_end_tag (bd);

#endif

/* we assume that the kernel is in place */

printf ("nStarting kernel ...nn");

#ifdef CONFIG_USB_DEVICE

{

extern void udc_disconnect (void);

//udc_disconnect ();del by andy

}

#endif

cleanup_before_linux (); //Close I-cache and D-cache, clear I-cache and D-cache

theKernel (0, bd->bi_arch_number, bd->bi_boot_params); //Start kernel bd->bi_arch_number machine type ID, bd->bi_boot_params is the starting address of the tag list

Finally, call theKernel to enter the kernel

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Keywords：u-boot Reference address：How is the u-boot kernel started?

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