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Wishbone adapter to access flash through a movable window #2134

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NateMeyer opened this issue Dec 3, 2024 · 0 comments
Open

Wishbone adapter to access flash through a movable window #2134

NateMeyer opened this issue Dec 3, 2024 · 0 comments

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@NateMeyer
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I am trying to integrate the LiteSPI core as a flash controller to be accessible to a host through LitePCIe.

I do not want to map the entire flash region to the LitePCIe BAR0 but would rather create an adapter that maps several KB of address space of the BAR to the SPI flash and have a CSR that can set the upper address bits in the flash address to create a movable window for accessing the mmap of LiteSPI from the host.

I haven't been able to find any documentation or example that explains how I could create this adapter. Is this something the Wishbone Remapper can do? Can you help point me in the right direction for creating this adapter?

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