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ARC: [plat-hsdk]: Switch ethernet phy-mode to rgmii-id
[ Upstream commit26907eb605
] HSDK board has Micrel KSZ9031, recent commitbcf3440c6d
("net: phy: micrel: add phy-mode support for the KSZ9031 PHY") caused a breakdown of Ethernet. Using 'phy-mode = "rgmii"' is not correct because accodring RGMII specification it is necessary to have delay on RX (PHY to MAX) which is not generated in case of "rgmii". Using "rgmii-id" adds necessary delay and solves the issue. Also adding name of PHY placed on HSDK board. Signed-off-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com> Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 2 additions and 2 deletions
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@ -210,7 +210,7 @@ gmac: ethernet@8000 {
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reg = <0x8000 0x2000>;
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interrupts = <10>;
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interrupt-names = "macirq";
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phy-mode = "rgmii";
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phy-mode = "rgmii-id";
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snps,pbl = <32>;
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snps,multicast-filter-bins = <256>;
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clocks = <&gmacclk>;
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@ -228,7 +228,7 @@ mdio {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "snps,dwmac-mdio";
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phy0: ethernet-phy@0 {
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phy0: ethernet-phy@0 { /* Micrel KSZ9031 */
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reg = <0>;
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};
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};
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