1.1. Phase 1
arch/arm/kernel/vmlinux.lds
--------------------Makefile
2.1 arch/arm/boot/compressed/start.S decompression code
2.2 arch/arm/kernel/head.S
2.2.1 __lookup_machine_type Machine ID
àMACH_START
àmachine_desc //Put it in __arch_info_begin…__arch_info_end
2.2.2 __create_page_tables creates page tables
2.2.3 Enabling MMU
2.2.4 __switch_data
àb start_kernel jump to C code
1.2. Phase 2
2.3 init/main.c
2.3.1 start_kernel
setup_arch(&command_line) parses command line arguments
setup_processor();
setup_machine(machine_arch_type);
parse_tags(tags);
parse_cmdline(cmdline_p, from);
paging_init(mdesc);
devicemaps_init(mdesc);
mdesc->map_io()
setup_command_line(command_line)
parse_early_param()
do_early_param
init_IRQ()
console_init();
s3c24xx_serial_initconsole
reset_init()
kernel_init
prepare_namespace
mount_root mounts the file system
init_post
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