Hi, I am working on VAR-SOM-MX6 SOC. I'm trying to boot a custom SPL from NAND. After programming NAND with custom SPL, system goes to serial downloader mode. I have taken the ROM code buffer log (also attached below). It shows that authentication fails. My boot security settings are OPEN, so even though authentication fails it should handover the control to SPL, which ROM code doesn't and system goes to serial downloader mode. I was able to attach JTAG and read the registers of core and it shows that LR is 0x000B0000. Which is exactly what it should be. Because it was expected to jump to entry point.
00902190 = 00010002 000200F0 00030000 00040000 009021A0 = 00050001 00060000 00070000 000700F0 009021B0 = 00080000 00000280 000800F0 00080000 009021C0 = 00000282 00080033 00090000 000A1E33 009021D0 = 00061FFF 000C0000 00000000 00000000 009021E0 = 00000000 00000000 00000000 00000000 009021F0 = 00000000 00000000 00000000 00000000 00902200 = 00000000 00000000 00000000 00000000 00902210 = 00000000 00000000 00000000 00000000 00902220 = 00000000 00000000 00000000 00000000 00902230 = 00000000 00000000 00000000 00000000 00902240 = 00000000 00000000 00000000 00000000 00902250 = 00000000 00000000 00000000 00000000 00902260 = 00000000 00000000 00000000 00000000 00902270 = 00000000 00000000 00000000 00000000 00902280 = 00000000 00000000 00000000 00000000 00902290 = 00000000 03040103 00000409 00030101 009022A0 = 06810040 00002200 0112008C 00000200 009022B0 = 15A24000 00010054 01000201 0200060A
Regards, Abdul Rasheed