Elite Semiconductor Memory Technology Inc. Double Data Rate SDRAM 

ESMT M13S5121632A 64M DDR SDRAM  8M x 16 Bit x 4 Banks 
ESMT M13S2561616A 32M DDR SDRAM  4M x 16 Bit x 4 Banks 
ESMT M13S128168A  16M DDR SDRAM  2M x 16 Bit x 4 Banks
ESMT M13S64322A    8M DDR SDRAM 512Kx 32 Bit x 4 Banks

  PRODUCT ID     MAX FREQ  VDD  PACKAGE COMMENTS

M13S5121632A-5TG  200MHz  2.5V  TSOPII  Pb-free 

M13S2561616A-4TG  250MHz  2.7V  TSOPII  Pb-free 
M13S2561616A-5TG  200MHz  2.5V  TSOPII  Pb-free 
M13S2561616A-6TG  166MHz  2.5V  TSOPII  Pb-free 

M13S128168A -4TG  250MHz  2.7V  TSOPII  Pb-free 
M13S128168A -5TG  200MHz  2.5V  TSOPII  Pb-free 
M13S128168A -6TG  166MHz  2.5V  TSOPII  Pb-free 
M13S128168A -4BG  250MHz  2.7V  BGA     Pb-free 
M13S128168A -5BG  200MHz  2.5V  BGA     Pb-free 
M13S128168A -6BG  166MHz  2.5V  BGA     Pb-free

$ sudo ../xburst-tools/usbboot/src/usbboot -f /etc/xburst-tools/usbboot.cfg -1 ./fw.bin -2 ./usb_boot.bin -c boot
usbboot - Ingenic XBurst USB Boot Utility
© 2009 Ingenic Semiconductor Inc., Qi Hardware Inc., Xiangfu Liu, Marek Lindner
This program is Free Software and comes with ABSOLUTELY NO WARRANTY.

Now checking whether all configure args valid: YES
Current device setup information:
Crystal work at 12MHz, the CCLK up to 96MHz and PMH_CLK up to 32MHz
SDRAM Total size is 32 MB, work in 4 bank and 16 bit mode
Nand page per block 64, Nand page size 4096, ECC offset in OOB 12, bad block offset in OOB 0, bad block page 127, use 1 plane mode
 Execute command: boot 
 CPU data: JZ4750V1
 CPU not yet booted, now booting...
 Loading stage1 from './fw.bin'
 Download stage 1 program and execute at 0x80002000
 CPU data: JZ4750V1
 Loading stage2 from './usb_boot.bin'
 Download stage 2 program and execute at 0x81c00000
 CPU data: JZ4750V1
 CPU data: Boot4750
 Booted successfully!
 CPU data: Boot4750
 Configuring XBurst CPU succeeded.


$ sudo ../xburst-tools/usbboot/src/usbboot -f /etc/xburst-tools/usbboot.cfg -1 ./fw.bin -2 ./usb_boot.bin -c "nquery 0 0"
usbboot - Ingenic XBurst USB Boot Utility
© 2009 Ingenic Semiconductor Inc., Qi Hardware Inc., Xiangfu Liu, Marek Lindner
This program is Free Software and comes with ABSOLUTELY NO WARRANTY.

Now checking whether all configure args valid: YES
Current device setup information:
Crystal work at 12MHz, the CCLK up to 96MHz and PMH_CLK up to 32MHz
SDRAM Total size is 32 MB, work in 4 bank and 16 bit mode
Nand page per block 64, Nand page size 4096, ECC offset in OOB 12, bad block offset in OOB 0, bad block page 127, use 1 plane mode
 Execute command: nquery 0 0 
 CPU data: Boot4750
 ID of No.0 device No.0 flash: 
 Vendor ID    :0xec 
 Product ID   :0xd3 
 Chip ID      :0x14 
 Page ID      :0xa5 
 Plane ID     :0x64

sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman

#df -h

Filesystem                Size      Used Available Use% Mounted on
/dev/root                17.0M     17.0M         0 100% /
tmpfs                   124.8M    412.0K    124.4M   0% /tmp
devfs                   124.8M         0    124.8M   0% /dev
/dev/sda1                 1.9G     24.0K      1.9G   0% /tmp/mnt/sda1