From 7dad444c765ab94bf70592c502df9d1e1f72d436 Mon Sep 17 00:00:00 2001 From: "Ooi, Joyce" <joyce.ooi@intel.com> Date: Thu, 21 Nov 2019 06:48:56 -0800 Subject: [PATCH] arm: dts: Stratix10: change pad skew values for EMAC0 PHY driver The HPS EMAC0 drive strength is changed to 4mA because the initial 8mA drive strength has caused CE test to fail. This requires changes on the pad skew for EMAC0 PHY driver. Based on several measurements done, Tx clock does not require the extra 0.96ns delay which was needed in Arria10. Signed-off-by: Ooi, Joyce <joyce.ooi@intel.com> Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com> --- arch/arm/dts/socfpga_stratix10_socdk.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/dts/socfpga_stratix10_socdk.dts b/arch/arm/dts/socfpga_stratix10_socdk.dts index ce07659602..58baa710d4 100755 --- a/arch/arm/dts/socfpga_stratix10_socdk.dts +++ b/arch/arm/dts/socfpga_stratix10_socdk.dts @@ -73,7 +73,7 @@ rxd2-skew-ps = <420>; /* 0ps */ rxd3-skew-ps = <420>; /* 0ps */ txen-skew-ps = <0>; /* -420ps */ - txc-skew-ps = <1860>; /* 960ps */ + txc-skew-ps = <900>; /* 0ps */ rxdv-skew-ps = <420>; /* 0ps */ rxc-skew-ps = <1680>; /* 780ps */ }; -- 2.39.5