From: Evgeniy Didin Evgeniy.Didin@synopsys.com
[ Upstream commit 26907eb605fbc3ba9dbf888f21d9d8d04471271d ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arc/boot/dts/hsdk.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index aeacea148793c..75aa3a8f9fdc9 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -163,7 +163,7 @@ ethernet@8000 { 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>; @@ -179,7 +179,7 @@ mdio { #address-cells = <1>; #size-cells = <0>; compatible = "snps,dwmac-mdio"; - phy0: ethernet-phy@0 { + phy0: ethernet-phy@0 { /* Micrel KSZ9031 */ reg = <0>; ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>; ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;