Merge pull request #178 from FlyGoat/CPLLREFCLKSEL

phy/usp_gth/gty_1000basex: Set proper CPLLREFCLKSEL
enjoy-digital · Dec 18, 2024 · 3897ed0 · 3897ed0
2 parents d2b1b0e + 50ad88c
commit 3897ed0
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/liteeth/phy/usp_gth_1000basex.py b/liteeth/phy/usp_gth_1000basex.py
@@ -565,7 +565,7 @@ def __init__(self, refclk_or_clk_pads, data_pads, sys_clk_freq, refclk_freq=200e
             i_CPLLLOCKDETCLK       = 0b0,
             i_CPLLLOCKEN           = 0b1,
             i_CPLLPD               = pll_reset,
-            i_CPLLREFCLKSEL        = 0b001,
+            i_CPLLREFCLKSEL        = 0b111 if refclk_from_fabric else 0b001,
             i_CPLLRESET            = 0b0,
             i_DMONFIFORESET        = 0b0,
             i_DMONITORCLK          = 0b0,

diff --git a/liteeth/phy/usp_gty_1000basex.py b/liteeth/phy/usp_gty_1000basex.py
@@ -581,7 +581,7 @@ def __init__(self, refclk_or_clk_pads, data_pads, sys_clk_freq, refclk_freq=200e
             i_CPLLLOCKDETCLK       = 0b0,
             i_CPLLLOCKEN           = 0b1,
             i_CPLLPD               = pll_reset,
-            i_CPLLREFCLKSEL        = 0b001,
+            i_CPLLREFCLKSEL        = 0b111 if refclk_from_fabric else 0b001,
             i_CPLLRESET            = 0b0,
             i_DMONFIFORESET        = 0b0,
             i_DMONITORCLK          = 0b0,