| Message ID | 1524538918-21141-1-git-send-email-joyce.ooi@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 04/23/2018 10:01 PM, Ooi, Joyce wrote: > 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. > > Signed-off-by: Ooi, Joyce <joyce.ooi@intel.com> > --- > .../boot/dts/altera/socfpga_stratix10_socdk.dts | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts > index 0007564..8785f78 100644 > --- a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts > +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts > @@ -79,7 +79,7 @@ > 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 */ > }; > Applied, thanks! Dinh
diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts index 0007564..8785f78 100644 --- a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts @@ -79,7 +79,7 @@ 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 */ };
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. Signed-off-by: Ooi, Joyce <joyce.ooi@intel.com> --- .../boot/dts/altera/socfpga_stratix10_socdk.dts | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)