Original U-Boot

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Environment

boot > printenv
audio_codec_name=audio_codec="dummy"                                                                                                                                                                                                                                           
boot_target_cmd=run do_flash_os;run do_probe_dfu;run do_compute_target;run mmc-bootargs;run load_kernel;zboot ${loadaddr}                                                                                                                                                      
bootargs_console=console=ttyMFD2 earlyprintk=ttyMFD2,keep                                                                                                                                                                                                                      
bootargs_debug=loglevel=4                                                                                                                                                                                                                                                      
bootargs_ethconfig=cdc                                                                                                                                                                                                                                                         
bootargs_target=multi-user                                                                                                                                                                                                                                                     
bootcmd=echo "Target:${target_name}"; run do_partition; run do_handle_bootargs_mode;                                                                                                                                                                                           
bootdelay=1                                                                                                                                                                                                                                                                    
dfu_alt_info_ram=kernel ram ${loadaddr} 0x800000                                                                                                                                                                                                                               
dfu_alt_info_reset=reset ram 0x0 0x0                                                                                                                                                                                                                                           
dfu_to_sec=3                                                                                                                                                                                                                                                                   
do_audio_support=setenv audio_support platform_mrfld_audio.${audio_codec_name}                                                                                                                                                                                                 
do_boot=run boot_target_cmd;                                                                                                                                                                                                                                                   
do_bootargs_rootfs=setenv bootargs_rootfs rootwait root=PARTUUID=${uuid_rootfs} rootfstype=ext4                                                                                                                                                                                
do_compute_target=if itest.b ${first_install_retry} -gt ${first_install_max_retries} || itest.b ${ota_update_retry} -gt ${ota_update_max_retries}; then echo "Switch to Rescue target"; setenv bootargs_target rescue; saveenv; fi                                             
do_dfu_alt_info_ifwi=setenv dfu_alt_info "ifwi${hardware_id} mmc 0 8192 mmcpart 1;ifwib${hardware_id} mmc 0 8192 mmcpart 2"                                                                                                                                                    
do_dfu_alt_info_mmc=setenv dfu_alt_info "ifwi${hardware_id} mmc 0 8192 mmcpart 1;ifwib${hardware_id} mmc 0 8192 mmcpart 2;u-boot0 part 0 1;u-boot-env0 part 0 2;u-boot1 part 0 3;u-boot-env1 part 0 4;boot part 0 7;rootfs part 0 8;update part 0 9;home part 0 10;vmlinuz fat 0 7;initrd fat 0 7"                                                                                                                                                                                                                                                            
do_dnx=setenv dfu_alt_info ${dfu_alt_info_ram};dfu 0 ram 0 ram;run bootcmd                                                                                                                                                                                                     
do_fallback=echo "Unknown boot mode: $bootargs_mode"; env delete -f bootargs_mode; saveenv; echo "Resetting to default boot mode and reboot..."; reset;                                                                                                                        
do_flash=run do_force_flash_os;                                                                                                                                                                                                                                                
do_flash_ifwi=run do_dfu_alt_info_ifwi ; dfu 0 mmc 0                                                                                                                                                                                                                           
do_flash_os=if itest.b ${do_flash_os_done} -eq 1 ; then echo "Flashing already done..." ; else run do_force_flash_os; fi                                                                                                                                                       
do_flash_os_done=1                                                                                                                                                                                                                                                             
do_flashall=run do_partition;run do_flash_ifwi;run do_flash_os                                                                                                                                                                                                                 
do_force_flash_os=run do_dfu_alt_info_mmc ; sleep 1 ; setenv do_flash_os_done 1 ; saveenv ; dfu 0 mmc 0                                                                                                                                                                        
do_force_partition=echo "Partitioning using GPT"; gpt write mmc 0 ${partitions} ; mmc rescan; setenv do_partition_done 1 ; saveenv                                                                                                                                             
do_handle_bootargs_mode=run do_preprocess_bootargs_mode; if itest.s $bootargs_mode == "ota" ; then run do_ota; fi; if itest.s $bootargs_mode == "boot" ; then run do_boot; fi; if itest.s $bootargs_mode == "flash"; then run do_flash; fi; run do_fallback; exit;             
do_load_ota_scr=if fatload mmc 0:9 $ota_script_addr ota_update.scr ; then setenv ota_status 0 ; else setenv ota_status 1 ; fi                                                                                                                                                  
do_ota=run do_ota_init ; run do_load_ota_scr ; run do_source_ota_scr ; run do_ota_clean                                                                                                                                                                                        
do_ota_clean=saveenv ; reset                                                                                                                                                                                                                                                   
do_ota_init=setenv ota_status 1 ; env delete -f bootargs_mode                                                                                                                                                                                                                  
do_partition=if itest.b ${do_partition_done} -eq 1; then echo "Partitioning already done..."; else run do_force_partition ; fi                                                                                                                                                 
do_partition_done=1                                                                                                                                                                                                                                                            
do_preprocess_bootargs_mode=if env exists bootargs_mode ; then ; else setenv bootargs_mode "boot" ;fi;                                                                                                                                                                         
do_probe_dfu=run do_dfu_alt_info_mmc ; dfu 0 mmc 0 $dfu_to_sec                                                                                                                                                                                                                 
do_source_ota_scr=if test $ota_status -eq 0 ; then if source $ota_script_addr ; then setenv ota_status 0 ; else setenv ota_status 2 ; fi ; fi                                                                                                                                  
first_install_max_retries=3                                                                                                                                                                                                                                                    
first_install_retry=0                                                                                                                                                                                                                                                          
hardware_id=00                                                                                                                                                                                                                                                                 
init_dfu=run do_dfu_alt_info_mmc ; saveenv                                                                                                                                                                                                                                     
load_kernel=fatload mmc 0:7 ${loadaddr} vmlinuz                                                                                                                                                                                                                                
loadaddr=0x100000                                                                                                                                                                                                                                                              
mmc-bootargs=run do_bootargs_rootfs; run do_audio_support; setenv bootargs ${bootargs_rootfs} ${bootargs_console} ${bootargs_debug} g_multi.ethernet_config=${bootargs_ethconfig} systemd.unit=${bootargs_target}.target hardware_id=${hardware_id} g_multi.iSerialNumber=${serial#} g_multi.dev_addr=${usb0addr} ${audio_support}                                                                                                                                                                                                                            
ota_done=0                                                                                                                                                                                                                                                                     
ota_script_addr=0x100000
ota_update_max_retries=3
ota_update_retry=0
partitions=uuid_disk=${uuid_disk};name=u-boot0,start=1MiB,size=2MiB,uuid=${uuid_uboot0};name=u-boot-env0,size=1MiB,uuid=${uuid_uboot_env0};name=u-boot1,size=2MiB,uuid=${uuid_uboot1};name=u-boot-env1,size=1MiB,uuid=${uuid_uboot_env1};name=factory,size=1MiB,uuid=${uuid_factory};name=panic,size=24MiB,uuid=${uuid_panic};name=boot,size=32MiB,uuid=${uuid_boot};name=rootfs,size=1536MiB,uuid=${uuid_rootfs};name=update,size=768MiB,uuid=${uuid_update};name=home,size=-,uuid=${uuid_home};
serial#=e035c067e998f15315ced66d67afb891
stderr=serial
stdin=serial
stdout=serial
target_name=blank
usb0addr=02:00:86:af:b8:91
uuid_boot=db88503d-34a5-3e41-836d-c757cb682814
uuid_disk=21200400-0804-0146-9dcc-a8c51255994f
uuid_factory=333a128e-d3e3-b94d-92f4-d3ebd9b3224f
uuid_home=f13a0978-b1b5-1a4e-8821-39438e24b627
uuid_panic=f20aa902-1c5d-294a-9177-97a513e3cae4
uuid_rootfs=012b3303-34ac-284d-99b4-34e03a2335f4
uuid_uboot0=d117f98e-6f2c-d04b-a5b2-331a19f91cb2
uuid_uboot1=8a4bb8b4-e304-ae48-8536-aff5c9c495b1
uuid_uboot_env0=25718777-d0ad-7443-9e60-02cb591c9737
uuid_uboot_env1=08992135-13c6-084b-9322-3391ff571e19
uuid_update=faec2ecf-8544-e241-b19d-757e796da607

Environment size: 4962/65531 bytes

U-Boot Commands

boot > help
?       - alias for 'help'
askenv  - get environment variables from stdin
base    - print or set address offset
bdinfo  - print Board Info structure
boot    - boot default, i.e., run 'bootcmd'
bootd   - boot default, i.e., run 'bootcmd'
bootelf - Boot from an ELF image in memory
bootm   - boot application image from memory
bootvx  - Boot vxWorks from an ELF image
cmp     - memory compare
coninfo - print console devices and information
cp      - memory copy
crc32   - checksum calculation
dcache  - enable or disable data cache
dfu     - Device Firmware Upgrade
echo    - echo args to console
editenv - edit environment variable
env     - environment handling commands
exit    - exit script
ext4load- load binary file from a Ext4 filesystem
ext4ls  - list files in a directory (default /)
ext4write- create a file in the root directory
false   - do nothing, unsuccessfully
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls   - list files in a directory (default /)
fatwrite- write file into a dos filesystem
gettime - get timer val elapsed,

go      - start application at address 'addr'
gpt     - GUID Partition Table
grepenv - search environment variables
hash    - compute message digest
help    - print command description/usage
icache  - enable or disable instruction cache
in      - read data from an IO port
ini     - parse an ini file in memory and merge the specified section into the env
interrupts- enable or disable interrupts
irqinfo - print information about IRQs
itest   - return true/false on integer compare
load    - load binary file from a filesystem
loadb   - load binary file over serial line (kermit mode)
loads   - load S-Record file over serial line
loadx   - load binary file over serial line (xmodem mode)
loady   - load binary file over serial line (ymodem mode)
loop    - infinite loop on address range
ls      - list files in a directory (default /)
md      - memory display
meminfo - display memory information
mm      - memory modify (auto-incrementing address)
mmc     - MMC sub system
mmcinfo - display MMC info
mw      - memory write (fill)
nm      - memory modify (constant address)
out     - write datum to IO port
part    - disk partition related commands
pci     - list and access PCI Configuration Space
printenv- print environment variables
read    - Load binary data from a partition
reginfo - print register information
reset   - Perform RESET of the CPU
run     - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv  - set environment variables
setexpr - set environment variable as the result of eval expression
sha1sum - compute SHA1 message digest
showvar - print local hushshell variables
sleep   - delay execution for some time
source  - run script from memory
test    - minimal test like /bin/sh
timer   - access the system timer
true    - do nothing, successfully
version - print monitor, compiler and linker version
zboot   - Boot bzImage