[P3400 ROM Development] basha:
good news

I can see 'Hello World' on top left at my Gene bootloader screen

set 32 1
+ SD Controller init

- SD Controller init

+StorageInit

SDInit+++
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDInit - SD ver1.0
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
CMD55 failed
+ SD Controller init

- SD Controller init

+StorageInit

SDInit+++
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDInit - SD ver1.0
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
CMD55 failed
BML_Open error:(nErr=0x800A0000)
GetDeviceCID: Error - InitDecoder

g_cKeyCardSecurityLevel = 0

Cmd>Is c:boot.bin
Invalid command : Is c:boot.bin
For a help screen, use command ? or h

Cmd>set 32 1
+ SD Controller init

- SD Controller init

+StorageInit

SDInit+++
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDInit - SD ver1.0
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
CMD55 failed
+ SD Controller init

- SD Controller init

+StorageInit

SDInit+++
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDCmd8 Command response time-out. MMC_STAT = 80
SDInit - SD ver1.0
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd1 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
SDCmd55 Command response time-out. MMC_STAT = 80
CMD55 failed
BML_Open error:(nErr=0x800A0000)
GetDeviceCID: Error - InitDecoder

g_cKeyCardSecurityLevel = 0

Cmd>ls c:\boot.bin
clean up the image temp buffer at 0x8C100000 Length 0x03A00000
BOOTLOAD_PAGE_TABLE_BASE_C_VIRTUAL= 0x8C080000
Clear image temp buffer done .
MTTYDownloadImage
"c:\boot.bin"
:F=c:\boot.bin
start download
SH
Address 8C100000h Length 00000255h
Download to RAM 0x8C100000...

OEMGetFlashIndex()- dwVaddr = 0x8C100000
OEMGetFlashIndex()- iIndex = 0xFFFFFFFF

checking image headerSigned image found!
*Start downloading new image!!!
Security Bootloader enabled
Image Download Finish
final jump to address, don't write to flash
MS_CERT_RAW
RawUnhash: Last block
Download successfull! Jumping to address 0x8C100000...

Instruction 0=E92D4010h, 1=E59F301Ch, 2=E59F4014h