hi all,
Firstly , Thanks Marc Singer for his great work to provide useful information and Linux support from his site..
Unfortunately, I could not bring the blob up in my LPD7A400 using the precompiled wblob.bin or self compiled blob using the patch from
http://projects.buici.com/arm/lpd7a400/. According to the instructions provided , I first load the wblob.bin into the SRAM address of 0xB0000000 , and then run from this address. The blob screen could show correctly , and then i flashed the binary into address 0x0000 0000 to replace bolo/lolo.
However , after reset the board , nothing was shown on the console.
In tracing the codes using a Wiggler-compitable JTAG , I found that blob hang in mem_test_loop. The data wrote to SDRAM could not be read correctly. I did tried to write it manually , the result are same in blob.
I guess that is the SDRAM did not initializated correctly. Do it have any SDRAM initialization code available other than the codes in blob? or it should not replace bolo , but instead it should flash to the address of lolo?
Thanks for any advise.