Hi All,
I am porting the u-boot for a customized board based on MPC8315 processor. It
has DDR2 SDRAM of 128 MB & 8 MB of flash. I found that the code hangs during
the relocation of the code, exactly in the following line (@ relocation
function in cpu/mpc83xx/start.S)
lwz r5, GOT(__bss_start)
Since the board has only 8MB of flash, I have modified the the TEXT_BASE to
0xFFF80000(as against 0xFE000000). I am able to access the DDR2 SDRAM(whole
128MB) , I tested it by writing & reading the patterns 0xaaaaaaaa &
0x555555555, So I assumed the DDR2 SDRAM timing are proper.
I would like to know the following
1. What does the 'GOT(__bss_start) do?
2. Do I have to change the linker script since I have changed the TEXT_BASE?
3. Is there any other cause for hanging?
Thank you in advance for helping
Regards,
Suresh
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