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authorEvgeniy Didin <Evgeniy.Didin@synopsys.com>2020-07-07 18:38:58 +0300
committerVineet Gupta <vgupta@synopsys.com>2020-09-01 21:59:04 +0300
commit26907eb605fbc3ba9dbf888f21d9d8d04471271d (patch)
tree83ef88d0d970d3f18ec5c1b0039b51ec43534fdc /arch/arc/boot/dts/hsdk.dts
parent4af22ded0ecf23adea1b26ea264c53f9f1cfc310 (diff)
downloadlinux-26907eb605fbc3ba9dbf888f21d9d8d04471271d.tar.xz
ARC: [plat-hsdk]: Switch ethernet phy-mode to rgmii-id
HSDK board has Micrel KSZ9031, recent commit bcf3440c6dd ("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>
Diffstat (limited to 'arch/arc/boot/dts/hsdk.dts')
-rw-r--r--arch/arc/boot/dts/hsdk.dts4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index 5d64a5a940ee..dcaa44e408ac 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -210,7 +210,7 @@
reg = <0x8000 0x2000>;
interrupts = <10>;
interrupt-names = "macirq";
- phy-mode = "rgmii";
+ phy-mode = "rgmii-id";
snps,pbl = <32>;
snps,multicast-filter-bins = <256>;
clocks = <&gmacclk>;
@@ -228,7 +228,7 @@
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,dwmac-mdio";
- phy0: ethernet-phy@0 {
+ phy0: ethernet-phy@0 { /* Micrel KSZ9031 */
reg = <0>;
};
};