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authorOoi, Joyce <joyce.ooi@intel.com>2018-04-24 11:01:58 +0800
committerDinh Nguyen <dinguyen@kernel.org>2018-04-24 10:12:49 -0500
commite8c622e2b51b9ad4a8cd3f153a2ca4f1b61cf165 (patch)
tree66a5347c49058e2cebf86e97d7c38c6dd92cc3d0 /arch/arm64/boot/dts
parentf64dd550939698b0e24faa2c9083189a5467eb14 (diff)
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>
Diffstat (limited to 'arch/arm64/boot/dts')
-rw-r--r--arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts2
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 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 */
};