ARM: dts: uniphier: Change phy-mode to RGMII-ID to enable delay pins for RTL8211E

[ Upstream commit 9ba585c ]

UniPhier PXs2 boards have RTL8211E ethernet phy, and the phy have the RX/TX
delays of RGMII interface using pull-ups on the RXDLY and TXDLY pins.

After the commit bbc4d71 ("net: phy: realtek: fix rtl8211e rx/tx
delay config"), the delays are working correctly, however, "rgmii" means
no delay and the phy doesn't work. So need to set the phy-mode to
"rgmii-id" to show that RX/TX delays are enabled.

Fixes: e3cc931 ("ARM: dts: uniphier: add AVE ethernet node")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: khayash1

arch/arm/boot/dts/uniphier-pxs2.dtsi

@@ -583,7 +583,7 @@
 			clocks = <&sys_clk 6>;
 			reset-names = "ether";
 			resets = <&sys_rst 6>;
-			phy-mode = "rgmii";
+			phy-mode = "rgmii-id";
 			local-mac-address = [00 00 00 00 00 00];
 			socionext,syscon-phy-mode = <&soc_glue 0>;