Hi,
In trying to figure what ACR value to used for the Spansion NOR flash on our
custom Davinci board,
I planned to use the settings on the DVEVM board as a guide. However, when I
looked at the ACR
settings (ACFG2-5) in board/davinci/platform.S in u-boot, I see ACFG2 (AMD NOR
flash is hooked
up to CS2 on the AEMIF) is not initialized at all, on ACFG3-5 are initialized
(and they all have a
value of 0x3FFFFFFD).
So I tried looking at the gel file (DaVinciEVM_arm.gel) that gets launched when
CCS 3.2 starts
and it does initialize ACFG2 in addition to ACFG3-5; but again, all the values
are set to
0x3FFFFFFD (maximum time out).
1) Why isn't ACFG2 initialized in platform.S?
2) Why are the ACFGx values all set to 0x3FFFFFFD? Won't this make accesses to
the NOR flash
or any AEMIF memory device very slow?
Thanks.
Regards,
Andy
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