microwatt

Author	SHA1	Message	Date
Benjamin Herrenschmidt	bf7def5503	soc: Don't require dram wishbones signals to be wired by toplevel Currently, when not using litedram, the top level still has to hook up "dummy" wishbones to the main dram and control dram busses coming out of the SoC and provide ack signals. Instead, make the SoC generate the acks internally when not using litedram and use defaults to make the wiring entirely optional. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>	4 years ago
Benjamin Herrenschmidt	1ffc89e58b	soc: Add defaults for some input signals That way the top-level's don't need to assign them Also remove generics that are set to the default anyways Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>	4 years ago
Benjamin Herrenschmidt	4244b54984	soc: Remove unused RESET_LOW generic Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>	4 years ago
Benjamin Herrenschmidt	a89e1469ef	spi: Add simulation support This require the s25fl128s.vhd flash model and FMF libraries, which will be built when passed to the Makefile via the FLASH_MODEL_PATH argument. Otherwise a dummy module is used which ties MISO to '1'. The model isn't included as I'm not sure its licence (GPL) is at this point, but it can be obtained from https://github.com/ozbenh/microspi FLASH_MODEL_PATH=<path to microspi>/model Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>	4 years ago