freescale MX27 platform bootloader source code is very useful

nandboot-dm9k-tftp\makebuild.sh
..................\drivers\nfc\mxc_nfc.c
..................\.......\...\mxc_nfc.h
..................\.......\crcgen\mxc_crcgen.c
..................\.......\uart\mxc_uart.h
..................\.......\....\mxc_extuart.c
..................\.......\....\mxc_uart.c
..................\include\mxc.h
..................\.......\...91231\hal_platform_setup.h
..................\.......\........\mxc91231.h
..................\.......\........\mxc27530evb.h
..................\.......\..31\mx31.h
..................\.......\....\hal_platform_setup.h
..................\.......\....\mx31ads.h
..................\.......\..c913x1\mxc913x1.h
..................\.......\........\hal_platform_setup.h
..................\.......\........\hal_platform_setup_mxc30030ads.h
..................\.......\........\mxc30030ads.h
..................\.......\........\i30030ads.h
..................\.......\........\i30030evb.h
..................\.......\........\mxc30030evb.h
..................\.......\..21\hal_platform_setup.h
..................\.......\....\mx21ads.h
..................\.......\....\mx21.h
..................\.......\..c91131\hal_platform_setup.h
..................\.......\........\mxc91131evb.h
..................\.......\........\mxc91131.h
..................\.......\..27\hal_platform_setup.h
..................\.......\....\mx27ads.h
..................\.......\....\mx27.h
..................\nandboot\ipl_startup.S
..................\........\IMX27ADS_spl_link.lds
..................\........\mxc_nb_ipl.c
..................\........\Makefile
..................\........\ipl_startup2.c
..................\........\spl_link.lds.S
..................\........\IMX27ADS_iplmap.txt
..................\........\mxc_spl_startup.S
..................\........\README.txt
..................\........\IMX27ADS_ipl_link.lds
..................\........\IMX27ADS_splmap.txt
..................\........\ipl_link.lds.S
..................\........\NANDBootDoxyFile.cfg
..................\........\nandfsbuild\mxc_nandfsbuild.c
..................\........\obj\mxc_init.o
..................\........\...\mxc_setup.o
..................\........\...\tftp_dm9k.o
..................\........\...\mxc_uart.o
..................\........\...\ipl_startup.o
..................\........\...\IMX27ADS_nb_ipl.elf
..................\........\...\mxc_nb_ipl.o
..................\........\...\IMX27ADS_nb_spl.elf
..................\........\...\ipl_startup2.o
..................\........\...\mxc_spl_startup.o
..................\........\...\mxc_nfc.o
..................\........\...\mxc_extuart.o
..................\........\...\boot.o
..................\........\...\write_nand.o
..................\........\...\mx2xads.o
..................\bin\IMX27ADS_nb_ipl2.bin
..................\...\IMX27ADS_nb_iplspl.bin
..................\...\IMX27ADS_nb_spl.bin
..................\...\IMX27ADS_nb_ipl1.bin
..................\...\mkiplspl.sh
..................\image\README.txt
..................\platform\mxc_setup.c
..................\........\mxc_setup.h
..................\........\write_nand.h
..................\........\boot_test.c
..................\........\write_nand.c
..................\........\tftp_dm9k.c
..................\........\boot.c
..................\........\mxc_init.c
..................\........\tftp_dm9k.h
..................\........\mx2xads.c
..................\........\boot.bakv2.c
..................\miniboot\mxc_mb_nor.c
..................\........\IMX27ADS_link.lds
..................\........\Makefile
..................\........\mxc_mb_startup.S
..................\........\MinibootDoxyFile.cfg
..................\........\link.lds.S
..................\........\IMX27ADS_mb_map.txt
..................\........\README.txt
..................\........\temp\mxc_init.o
..................\........\....\mxc_setup.o
..................\........\....\tftp_dm9k.o
..................\........\....\mxc_uart.o
..................\........\....\mxc_mb_nor.o
..................\........\....\mxc_extuart.o
..................\........\....\boot.o
..................\........\....\wri

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