| From c0a7f08375194a66bc0b0c9289ee416e8066e623 Mon Sep 17 00:00:00 2001 |
| From: "Ooi, Joyce" <joyce.ooi@intel.com> |
| Date: Tue, 24 Apr 2018 11:01:58 +0800 |
| Subject: [PATCH 1652/1795] arm64: 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. |
| |
| Signed-off-by: Ooi, Joyce <joyce.ooi@intel.com> |
| Signed-off-by: Dinh Nguyen <dinguyen@kernel.org> |
| (cherry picked from commit e8c622e2b51b9ad4a8cd3f153a2ca4f1b61cf165) |
| Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> |
| --- |
| arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts |
| index d03df18ca967..f9b1ef12db48 100644 |
| --- a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts |
| +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts |
| @@ -94,7 +94,7 @@ |
| 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 */ |
| }; |
| -- |
| 2.19.0 |
| |
