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✨ add optional XIP cache #799

Merged
merged 12 commits into from
Feb 9, 2024
Merged

✨ add optional XIP cache #799

merged 12 commits into from
Feb 9, 2024

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stnolting
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As discussed in #793 this PR adds an optional and configurable cache to the XIP module. A new set of top generics if provided to configure it:

 -- Execute in-place module (XIP) --
 XIP_EN               : boolean                  := false; -- implement execute in place module (XIP)?
 XIP_CACHE_EN         : boolean                  := false; -- implement XIP cache?
 XIP_CACHE_NUM_BLOCKS : natural range 1 to 256   := 8;     -- number of blocks (min 1), has to be a power of 2
 XIP_CACHE_BLOCK_SIZE : natural range 1 to 2**16 := 256;   -- block size in bytes (min 4), has to be a power of 2

The cache is implemented as simple direct-mapped read-only cache.

@stnolting stnolting added enhancement New feature or request HW Hardware-related labels Feb 9, 2024
@stnolting stnolting self-assigned this Feb 9, 2024
@stnolting stnolting marked this pull request as ready for review February 9, 2024 14:22
@stnolting stnolting merged commit 48566cd into main Feb 9, 2024
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@stnolting stnolting deleted the xip_cache branch February 9, 2024 15:38
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