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microwatt/litedram/gen-src
Benjamin Herrenschmidt a3857aac94 litedram: Add an L2 cache with store queue
This adds a cache between the wishbone and litedram with the following
features (at this point, it's still evolving)

  - 128 bytes line width in order to have a reasonable amount of
litedram pipelining on the 128-bit wide data port.

  - Configurable geometry otherwise

  - Stores are acked immediately on wishbone whether hit or miss
(minus a 2 cycles delay if there's a previous load response in the
way) and sent to LiteDRAM via 8 entries (configurable) store queue

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
5 years ago
..
sdram_init litedram: Add an L2 cache with store queue 5 years ago
arty.yml litedram: Update to new LiteX/LiteDRAM version 5 years ago
dram-init-mem.vhdl litedram: Add support for booting without BRAM 5 years ago
generate.py litedram: Add simulation support 5 years ago
nexys-video.yml litedram: Update to new LiteX/LiteDRAM version 5 years ago
no-init-mem.vhdl litedram: Split the init memory from the main wrapper 5 years ago
sim.yml litedram: Add simulation support 5 years ago