[Galaxy 3 Android Development] tom3q:
This is what I get from the serial port of G3:

Secondary Boot Loader(SBL)
Built for apollo rev02 by root on Oct 27 2010 17:10:33
Copyright (C) SAMSUNG Corporation 2006-2010
[PAM: ] ++FSR_PAM_Init
[PAM: ] OneNAND physical base address : 0xb0000000
[PAM: ] OneNAND virtual base address : 0xb0000000
[PAM: ] OneNAND nMID=0xec : nDID=0x50
[PAM: ] --FSR_PAM_Init
fsr_bml_load_partition: pi->nNumOfPartEntry = 10
partitions loading success
==== PARTITION INFORMATION ====
ID : IBL & PBL (0x0)
ATTR : RO SLC PREWRITING (0x9002)
FIRST_UNIT : 0
NO_UNITS : 1
===============================
ID : SBL (0x1)
ATTR : RO ENTRYPOINT SLC BOOTLOADING PREWRITING (0xd402)
FIRST_UNIT : 1
NO_UNITS : 5
===============================
ID : PARAM (0x2)
ATTR : RW SLC (0x1001)
FIRST_UNIT : 6
NO_UNITS : 2
===============================
ID : EFS (0x18)
ATTR : RW STL SLC (0x1101)
FIRST_UNIT : 8
NO_UNITS : 32
===============================
ID : KERNEL (0x4)
ATTR : RO SLC PREWRITING (0x9002)
FIRST_UNIT : 40
NO_UNITS : 30
===============================
ID : FACTORYFS (0x15)
ATTR : RW STL SLC (0x1101)
FIRST_UNIT : 70
NO_UNITS : 880
===============================
ID : DATAFS (0x16)
ATTR : RW STL SLC (0x1101)
FIRST_UNIT : 950
NO_UNITS : 810
===============================
ID : CACHE (0x17)
ATTR : RW STL SLC (0x1101)
FIRST_UNIT : 1760
NO_UNITS : 152 (*mismatch* 152 should be 150)
===============================
ID : TEMP (0x3)
ATTR : RW SLC (0x1001)
FIRST_UNIT : 1912
NO_UNITS : 28 (*mismatch* 28 should be 30)
===============================
ID : MODEM (0x5)
ATTR : RO SLC PREWRITING (0x9002)
FIRST_UNIT : 1940
NO_UNITS : 64
===============================
Read image(PARAM) from flash .......
..Done
read 2 units.
Normal Case : MAIN(O) & BACKUP(O)
main: Debug Level Low
RST_STAT = 0x00000004 WAKEUP_STAT = 0x00000000
s5p_fb_info_init start
s5p_fb_info_init end
s5p_fimd_info_init start
s5p_fimd_info_init end
LoadPNG: width:240, height:400, bpp:32, color_type:6, channels:4, rowbytes:960
lcd_gpio_init start
lcd_gpio_init end
lcd_backlight_ctrl start
lcd type: 1
ldi mtpdata: 52 9 11
lcd type is smd
set brightness:0x43
lcd_backlight_ctrl end
SBL:Phone Boot Mode=0
AST_POWERON
usb_download_mode:0

Autoboot (0 seconds) in progress, press any key to stop
AST_ERROR

Autoboot aborted
Type "help" to get a list of commands
SBL>
SBL>
SBL>
SBL> help
Following commands are supported:
* setenv
* savedefault
* saveenv
* printenv
* help
* sec_log
* kernel
* boot
* reset
* nandwrite
* nandread
* nkernel
* readcheck
* savepart
* delpart
* addpart
* showpart
* loadmodem
* loadkernel
* eraseall
* erasepart
* close
* open
* format
* getreg
* setreg
* getadc
* sleep
To get commands help, Type "help <command>"
SBL>

When I let the kernel boot instead of entering the console I get no output from the kernel, possibly because UART switch is being reconfigured to modem somewhere in the kernel, kernel doesn't have serial console enabled or the serial port passed to the kernel in kernel arguments by the bootloader isn't the serial port accessible from microUSB connector.

For reference:

Secondary Boot Loader(SBL)
Built for apollo rev02 by root on Oct 27 2010 17:10:33
Copyright (C) SAMSUNG Corporation 2006-2010
[PAM: ] ++FSR_PAM_Init
[PAM: ] OneNAND physical base address : 0xb0000000
[PAM: ] OneNAND virtual base address : 0xb0000000
[PAM: ] OneNAND nMID=0xec : nDID=0x50
[PAM: ] --FSR_PAM_Init
fsr_bml_load_partition: pi->nNumOfPartEntry = 10
partitions loading success
==== PARTITION INFORMATION ====
ID : IBL & PBL (0x0)
ATTR : RO SLC PREWRITING (0x9002)
FIRST_UNIT : 0
NO_UNITS : 1
===============================
ID : SBL (0x1)
ATTR : RO ENTRYPOINT SLC BOOTLOADING PREWRITING (0xd402)
FIRST_UNIT : 1
NO_UNITS : 5
===============================
ID : PARAM (0x2)
ATTR : RW SLC (0x1001)
FIRST_UNIT : 6
NO_UNITS : 2
===============================
ID : EFS (0x18)
ATTR : RW STL SLC (0x1101)
FIRST_UNIT : 8
NO_UNITS : 32
===============================
ID : KERNEL (0x4)
ATTR : RO SLC PREWRITING (0x9002)
FIRST_UNIT : 40
NO_UNITS : 30
===============================
ID : FACTORYFS (0x15)
ATTR : RW STL SLC (0x1101)
FIRST_UNIT : 70
NO_UNITS : 880
===============================
ID : DATAFS (0x16)
ATTR : RW STL SLC (0x1101)
FIRST_UNIT : 950
NO_UNITS : 810
===============================
ID : CACHE (0x17)
ATTR : RW STL SLC (0x1101)
FIRST_UNIT : 1760
NO_UNITS : 152 (*mismatch* 152 should be 150)
===============================
ID : TEMP (0x3)
ATTR : RW SLC (0x1001)
FIRST_UNIT : 1912
NO_UNITS : 28 (*mismatch* 28 should be 30)
===============================
ID : MODEM (0x5)
ATTR : RO SLC PREWRITING (0x9002)
FIRST_UNIT : 1940
NO_UNITS : 64
===============================
Read image(PARAM) from flash .......
..Done
read 2 units.
Normal Case : MAIN(O) & BACKUP(O)
main: Debug Level Low
RST_STAT = 0x00000004 WAKEUP_STAT = 0x00000000
s5p_fb_info_init start
s5p_fb_info_init end
s5p_fimd_info_init start
s5p_fimd_info_init end
LoadPNG: width:240, height:400, bpp:32, color_type:6, channels:4, rowbytes:960
lcd_gpio_init start
lcd_gpio_init end
lcd_backlight_ctrl start
lcd type: 1
ldi mtpdata: 52 9 11
lcd type is smd
set brightness:0x43
lcd_backlight_ctrl end
SBL:Phone Boot Mode=0
AST_POWERON
usb_download_mode:0

Autoboot (0 seconds) in progress, press any key to stop
FOTA Check Bit
Read BML page=1e4ff, NumPgs=1
FOTA Check Bit (0x0)
Load Partion idx = (4)
..............................done
Kernel read success from kernel partition
setKernelParam: setting param.serialnr=3930c0cf08x 0x159100ec
setKernelParam: setting param.board_rev=0x2
setKernelParam: setting param.cmdline=console=ttySAC1,115200 loglevel=4 version=Sbl(1.0.0) 2010-10-27 17:10:33

Starting kernel at 0x22000000...