Hello. I've wondered about the addressing capabilities of the 88F6281 for some time and finally decided to look more into it's abilities. According to the Hardware sheet, the device (CPU) has 4 addressing registers that specify the base address of a 4GB block of memory. There are 4 of them and they only will point to bases in the SD and PCI address spaces. I'm referring to the "Section A.5, Time Division Multiplexing (TDM) Unit Registers"
I'm interested to know if anyone has knowledge of how these are initialized and or used in the Debian environment. If code figures out the amount of actual memory and sets them accordingly that would be wonderful, but somehow I doubt that. I'm not even sure where to look for that code sequence that sets the CPU up. I know Global has stated in an e-mail to me that they have successfully used a 16GB SD card in their testing. With the problem we have of Global not releasing a schematic of the Dreamplug, I sure couldn't recommend them for any future product development (including a 'recommended' platform for Freedom Box). Some of the problems we have now would be correct with a schematic, for some of us. Anyone who knows anything along these lines, please let me know. Thanks to all Jack
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