From: Marek Vasut <marex@denx.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Marek Vasut <marex@denx.de>, Dinh Nguyen <dinguyen@kernel.org>
Subject: [PATCH] ARM: dts: socfpga: Adjust GMAC1 clock and TXD lines skew on VINING FPGA
Date: Fri, 28 Jun 2019 02:19:44 +0200 [thread overview]
Message-ID: <20190628001944.1478-1-marex@denx.de> (raw)
Adjust GMAC1 clock lines skew to maximum (+960 ps) and TXD lines skew
to minimum (-420 ps), to improve signal integrity.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
---
arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts b/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts
index 622cc7cc1471..a060718758b6 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts
@@ -96,10 +96,14 @@
rxd1-skew-ps = <0>;
rxd2-skew-ps = <0>;
rxd3-skew-ps = <0>;
+ txd0-skew-ps = <0>;
+ txd1-skew-ps = <0>;
+ txd2-skew-ps = <0>;
+ txd3-skew-ps = <0>;
txen-skew-ps = <0>;
- txc-skew-ps = <2600>;
+ txc-skew-ps = <1860>;
rxdv-skew-ps = <0>;
- rxc-skew-ps = <2000>;
+ rxc-skew-ps = <1860>;
};
};
};
--
2.20.1
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next reply other threads:[~2019-06-28 0:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-28 0:19 Marek Vasut [this message]
2019-07-01 14:59 ` [PATCH] ARM: dts: socfpga: Adjust GMAC1 clock and TXD lines skew on VINING FPGA Dinh Nguyen
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