microwatt

Commit Graph

Author	SHA1	Message	Date
Benjamin Herrenschmidt	e638c3e8ae	fpga/bram: Generate stall signal This doesn't yet pipeline the block RAM, just generate a valid stall signal so it's compatible with a pipelined master Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>	5 years ago
Anton Blanchard	6cbf456388	SOC memory wishbone should clear ACK regardless of STB The memory wishbone doesn't clear ACK and move the state machine on until STB is de-asserted. This seems like it isn't compliant with the spec and results in a maximum throughput of 1 transfer every 3 cycles. Fixing this improves the situation to one transfer every 2 cycles. Signed-off-by: Anton Blanchard <anton@linux.ibm.com>	5 years ago
Benjamin Herrenschmidt	d21ef5836d	Pass wishbone record to bram memory module (And rename it to mw_soc_memory). This makes soc.vhdl simpler and provides the same interface as the simulated memory, which will help when sharing soc.vhdl with sim later Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>	5 years ago

Author

SHA1

Message

Date

Benjamin Herrenschmidt

e638c3e8ae

fpga/bram: Generate stall signal

This doesn't yet pipeline the block RAM, just generate a valid stall
signal so it's compatible with a pipelined master

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Anton Blanchard

6cbf456388

SOC memory wishbone should clear ACK regardless of STB

The memory wishbone doesn't clear ACK and move the state machine on
until STB is de-asserted. This seems like it isn't compliant with
the spec and results in a maximum throughput of 1 transfer every
3 cycles.

Fixing this improves the situation to one transfer every 2 cycles.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>

Benjamin Herrenschmidt

d21ef5836d

Pass wishbone record to bram memory module

(And rename it to mw_soc_memory).

This makes soc.vhdl simpler and provides the same interface as
the simulated memory, which will help when sharing soc.vhdl
with sim later

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

3 Commits (365f60b69391e193032d8b3bb961b2da707fd5c7)