microwatt

Author	SHA1	Message	Date
Benjamin Herrenschmidt	9961d70dfb	Improve PLL/MMCM clocks configuration We can now pass both the input clock and target clock frequency via generics. Add support for both 50Mhz and 100Mhz target freqs for both cases. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>	6 years ago
Anton Blanchard	142a722ce4	Remove names from end record statements These are optional, and vhdlpp from iverilog barfs on them. Signed-off-by: Anton Blanchard <anton@linux.ibm.com>	6 years ago
Anton Blanchard	03fd06deaf	Rework SOC reset The old reset code was overly complicated and never worked properly. Replace it with a simpler sequence that uses a couple of shift registers to assert resets: - Wait a number of external clock cycles before removing reset from the PLL. - After the PLL locks and the external reset button isn't pressed, wait a number of PLL clock cycles before removing reset from the SOC. Signed-off-by: Anton Blanchard <anton@linux.ibm.com>	6 years ago
Olof Kindgren	12327034d6	Add and use plle2 primitive for nexys boards	6 years ago