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microwatt
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caravel-mpw7-20221125
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4 Commits (0a0fe037672d9aca82b26a86ae5d988156b6ef2f)

Author SHA1 Message Date
Anton Blanchard 6cdb8ca9f5 Fix clk_gen_bypass 
clk_gen_bypass needed updating after the addition of CLK_INPUT_HZ and
CLK_OUTPUT_HZ.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 5 years ago
Anton Blanchard d89a9929fd Fix clk_gen_bypass 
I broke clk_gen_bypass when updating the SOC reset code.

Fixes 03fd06deaf ("Rework SOC reset")
Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 5 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 b5bccc4c13 Add dummy clock generator 6 years ago