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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-04-27 13:25:18 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-04-29 00:33:42 +0900 |
| commit | 8b82b66e68b32dd8e22a04db6a0494bfdd65156f (patch) | |
| tree | c5a702979b6dc2ed9bb95f5e459cf86ec8ef126e /arch/arm64/boot/dts/socionext | |
| parent | f4e5200fc0d7dad75c688e7ccc0652481a916df5 (diff) | |
| download | linux-stable-8b82b66e68b32dd8e22a04db6a0494bfdd65156f.tar.gz linux-stable-8b82b66e68b32dd8e22a04db6a0494bfdd65156f.tar.bz2 linux-stable-8b82b66e68b32dd8e22a04db6a0494bfdd65156f.zip | |
arm64: dts: uniphier: stabilize ethernet of LD20 reference board
Currently, the ethernet RGMII mode on the LD20 reference board is
unstable.
The default drive-strength of ethernet TX pins is too strong because
there is no dumping resistor on the TX lines on the board.
Weaken the drive-strength to make the ethernet more stable.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm64/boot/dts/socionext')
| -rw-r--r-- | arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts b/arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts index 2c1a92fafbfb..440c2e6a638b 100644 --- a/arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts +++ b/arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts @@ -67,3 +67,11 @@ reg = <0>; }; }; + +&pinctrl_ether_rgmii { + tx { + pins = "RGMII_TXCLK", "RGMII_TXD0", "RGMII_TXD1", + "RGMII_TXD2", "RGMII_TXD3", "RGMII_TXCTL"; + drive-strength = <9>; + }; +}; |