From d4fa6a2f4a7656a1644b2f30f4141d42570a0138 Mon Sep 17 00:00:00 2001
From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Mon, 19 Aug 2024 09:16:20 +0200
Subject: [PATCH] phy/a7_gtp: Add additionnal comment to #163 and express delay
 in us.

---
 liteeth/phy/a7_gtp.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/liteeth/phy/a7_gtp.py b/liteeth/phy/a7_gtp.py
index c1117f2..aa50e52 100644
--- a/liteeth/phy/a7_gtp.py
+++ b/liteeth/phy/a7_gtp.py
@@ -88,9 +88,9 @@ class GTPTxInit(Module):
         self.specials += MultiReg(self.qpll_lock, qpll_lock)
 
         # After configuration, transceiver resets have to stay low for
-        # at least 500ns.
+        # at least 500ns (Here extended to 10us).
         # See https://www.xilinx.com/support/answers/43482.html
-        timer_max = ceil(10000e-9*sys_clk_freq)
+        timer_max = ceil(10e-6*sys_clk_freq)
         timer     = Signal(max=timer_max+1)
         tick      = Signal()
         self.sync += [