<Peng_Fan>
marex: not sure where it is, does the yocto image has that firmare?
<Peng_Fan>
marex: The linux driver netc owner is on Chinese New Year holiday, I will ask him on this.
<sjg1>
bryanb: There are some 32-bit machines with more than 4GB of memory (or at least with memory which is not addressable within that region). So phys_size_t can sometimes be u64 even on 32-bit platforms
<sjg1>
bryanb: The intention is to create more space, not less. What sort of problem is it causing?
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<marex>
Peng_Fan: glad I could help ... also just spent a few hours on mx95 today
<marex>
Peng_Fan: I dont think the firmware is available in any image, or is it ?
<marex>
Peng_Fan: enjoy the holiday
<marex>
Peng_Fan: I dont think this is related to netc specifically, this is the aquatia PHY firmware
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<bryanb>
sjg1: ok. so I'm trying to pass along the true density Linux will have depending on how the DDR controller was configured for inline ECC.
<bryanb>
if the entire region is used it will be 8/9ths of the true density. but we can also configure fractions of the DDR space to be protected which can be annoying.
<bryanb>
my hope was we could calculate that density in our SPL and pass that data along to fixul the DTB for Linux
<bryanb>
but K3 chips use a 32b core to initialize DDR which limits us to 4GB unless we change that type to a u64 if I'm not mistaken
<bryanb>
looking around I see a few casts to a u64 being used and wondered if we should just increase the size and drop all the casts.
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<sjg1>
bryanb: That's an unusual situation. You can use CONFIG_PHYS_64BIT to make phys_addr_t 64-bits, if that is suitable. Otherwise, yes, the only option is to change to a u64 type
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<bryanb>
sjg1: ah ok I read the help on that option and when it started talking about the large physical address extension I started to worry we would break something else
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<bryanb>
thanks for the help. I'll continue prototyping this out.
<sjg1>
bryanb: It probably won't break anything, but see how you go
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